From 1d62b7ac83e0791200563b9c2deb658c2d196dcf Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 4 Jun 2021 17:53:04 +0200 Subject: [PATCH 001/196] btrfs: tree-checker: do not error out if extent ref hash doesn't match MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 1119a72e223f3073a604f8fccb3a470ccd8a4416 upstream. The tree checker checks the extent ref hash at read and write time to make sure we do not corrupt the file system. Generally extent references go inline, but if we have enough of them we need to make an item, which looks like key.objectid = key.type = key.offset = hash(tree, owner, offset) However if key.offset collide with an unrelated extent reference we'll simply key.offset++ until we get something that doesn't collide. Obviously this doesn't match at tree checker time, and thus we error while writing out the transaction. This is relatively easy to reproduce, simply do something like the following xfs_io -f -c "pwrite 0 1M" file offset=2 for i in {0..10000} do xfs_io -c "reflink file 0 ${offset}M 1M" file offset=$(( offset + 2 )) done xfs_io -c "reflink file 0 17999258914816 1M" file xfs_io -c "reflink file 0 35998517829632 1M" file xfs_io -c "reflink file 0 53752752058368 1M" file btrfs filesystem sync And the sync will error out because we'll abort the transaction. The magic values above are used because they generate hash collisions with the first file in the main subvol. The fix for this is to remove the hash value check from tree checker, as we have no idea which offset ours should belong to. Reported-by: Tuomas Lähdekorpi Fixes: 0785a9aacf9d ("btrfs: tree-checker: Add EXTENT_DATA_REF check") CC: stable@vger.kernel.org # 5.4+ Reviewed-by: Filipe Manana Signed-off-by: Josef Bacik Reviewed-by: David Sterba [ add comment] Signed-off-by: David Sterba Signed-off-by: Sasha Levin --- fs/btrfs/tree-checker.c | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c index 40845428b739..d4a3a56726aa 100644 --- a/fs/btrfs/tree-checker.c +++ b/fs/btrfs/tree-checker.c @@ -1440,22 +1440,14 @@ static int check_extent_data_ref(struct extent_buffer *leaf, return -EUCLEAN; } for (; ptr < end; ptr += sizeof(*dref)) { - u64 root_objectid; - u64 owner; u64 offset; - u64 hash; + /* + * We cannot check the extent_data_ref hash due to possible + * overflow from the leaf due to hash collisions. + */ dref = (struct btrfs_extent_data_ref *)ptr; - root_objectid = btrfs_extent_data_ref_root(leaf, dref); - owner = btrfs_extent_data_ref_objectid(leaf, dref); offset = btrfs_extent_data_ref_offset(leaf, dref); - hash = hash_extent_data_ref(root_objectid, owner, offset); - if (hash != key->offset) { - extent_err(leaf, slot, - "invalid extent data ref hash, item has 0x%016llx key has 0x%016llx", - hash, key->offset); - return -EUCLEAN; - } if (!IS_ALIGNED(offset, leaf->fs_info->sectorsize)) { extent_err(leaf, slot, "invalid extent data backref offset, have %llu expect aligned to %u", From 70df000fb8808e2ea63e6beb2ff570c083592614 Mon Sep 17 00:00:00 2001 From: Grant Grundler Date: Tue, 19 Jan 2021 17:12:08 -0800 Subject: [PATCH 002/196] net: usb: cdc_ncm: don't spew notifications [ Upstream commit de658a195ee23ca6aaffe197d1d2ea040beea0a2 ] RTL8156 sends notifications about every 32ms. Only display/log notifications when something changes. This issue has been reported by others: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1832472 https://lkml.org/lkml/2020/8/27/1083 ... [785962.779840] usb 1-1: new high-speed USB device number 5 using xhci_hcd [785962.929944] usb 1-1: New USB device found, idVendor=0bda, idProduct=8156, bcdDevice=30.00 [785962.929949] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=6 [785962.929952] usb 1-1: Product: USB 10/100/1G/2.5G LAN [785962.929954] usb 1-1: Manufacturer: Realtek [785962.929956] usb 1-1: SerialNumber: 000000001 [785962.991755] usbcore: registered new interface driver cdc_ether [785963.017068] cdc_ncm 1-1:2.0: MAC-Address: 00:24:27:88:08:15 [785963.017072] cdc_ncm 1-1:2.0: setting rx_max = 16384 [785963.017169] cdc_ncm 1-1:2.0: setting tx_max = 16384 [785963.017682] cdc_ncm 1-1:2.0 usb0: register 'cdc_ncm' at usb-0000:00:14.0-1, CDC NCM, 00:24:27:88:08:15 [785963.019211] usbcore: registered new interface driver cdc_ncm [785963.023856] usbcore: registered new interface driver cdc_wdm [785963.025461] usbcore: registered new interface driver cdc_mbim [785963.038824] cdc_ncm 1-1:2.0 enx002427880815: renamed from usb0 [785963.089586] cdc_ncm 1-1:2.0 enx002427880815: network connection: disconnected [785963.121673] cdc_ncm 1-1:2.0 enx002427880815: network connection: disconnected [785963.153682] cdc_ncm 1-1:2.0 enx002427880815: network connection: disconnected ... This is about 2KB per second and will overwrite all contents of a 1MB dmesg buffer in under 10 minutes rendering them useless for debugging many kernel problems. This is also an extra 180 MB/day in /var/logs (or 1GB per week) rendering the majority of those logs useless too. When the link is up (expected state), spew amount is >2x higher: ... [786139.600992] cdc_ncm 2-1:2.0 enx002427880815: network connection: connected [786139.632997] cdc_ncm 2-1:2.0 enx002427880815: 2500 mbit/s downlink 2500 mbit/s uplink [786139.665097] cdc_ncm 2-1:2.0 enx002427880815: network connection: connected [786139.697100] cdc_ncm 2-1:2.0 enx002427880815: 2500 mbit/s downlink 2500 mbit/s uplink [786139.729094] cdc_ncm 2-1:2.0 enx002427880815: network connection: connected [786139.761108] cdc_ncm 2-1:2.0 enx002427880815: 2500 mbit/s downlink 2500 mbit/s uplink ... Chrome OS cannot support RTL8156 until this is fixed. Signed-off-by: Grant Grundler Reviewed-by: Hayes Wang Link: https://lore.kernel.org/r/20210120011208.3768105-1-grundler@chromium.org Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/usb/cdc_ncm.c | 12 +++++++++++- include/linux/usb/usbnet.h | 2 ++ 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 854c6624e685..1d3bf810f2ca 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -1827,6 +1827,15 @@ cdc_ncm_speed_change(struct usbnet *dev, uint32_t rx_speed = le32_to_cpu(data->DLBitRRate); uint32_t tx_speed = le32_to_cpu(data->ULBitRate); + /* if the speed hasn't changed, don't report it. + * RTL8156 shipped before 2021 sends notification about every 32ms. + */ + if (dev->rx_speed == rx_speed && dev->tx_speed == tx_speed) + return; + + dev->rx_speed = rx_speed; + dev->tx_speed = tx_speed; + /* * Currently the USB-NET API does not support reporting the actual * device speed. Do print it instead. @@ -1867,7 +1876,8 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb) * USB_CDC_NOTIFY_NETWORK_CONNECTION notification shall be * sent by device after USB_CDC_NOTIFY_SPEED_CHANGE. */ - usbnet_link_change(dev, !!event->wValue, 0); + if (netif_carrier_ok(dev->net) != !!event->wValue) + usbnet_link_change(dev, !!event->wValue, 0); break; case USB_CDC_NOTIFY_SPEED_CHANGE: diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h index 2e4f7721fc4e..8110c29fab42 100644 --- a/include/linux/usb/usbnet.h +++ b/include/linux/usb/usbnet.h @@ -83,6 +83,8 @@ struct usbnet { # define EVENT_LINK_CHANGE 11 # define EVENT_SET_RX_MODE 12 # define EVENT_NO_IP_ALIGN 13 + u32 rx_speed; /* in bps - NOT Mbps */ + u32 tx_speed; /* in bps - NOT Mbps */ }; static inline struct usb_driver *driver_of(struct usb_interface *intf) From 0d0df2e53223167d305dde815664bc830cd4cce6 Mon Sep 17 00:00:00 2001 From: Armin Wolf Date: Thu, 13 May 2021 17:45:46 +0200 Subject: [PATCH 003/196] hwmon: (dell-smm-hwmon) Fix index values MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Upstream commit 35d470b5fbc9f82feb77b56bb0d5d0b5cd73e9da ] When support for up to 10 temp sensors and for disabling automatic BIOS fan control was added, noone updated the index values used for disallowing fan support and fan type calls. Fix those values. Signed-off-by: Armin Wolf Reviewed-by: Pali Rohár Link: https://lore.kernel.org/r/20210513154546.12430-1-W_Armin@gmx.de Fixes: 1bb46a20e73b ("hwmon: (dell-smm) Support up to 10 temp sensors") Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin --- drivers/hwmon/dell-smm-hwmon.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c index 73b9db9e3aab..63b74e781c5d 100644 --- a/drivers/hwmon/dell-smm-hwmon.c +++ b/drivers/hwmon/dell-smm-hwmon.c @@ -838,10 +838,10 @@ static struct attribute *i8k_attrs[] = { static umode_t i8k_is_visible(struct kobject *kobj, struct attribute *attr, int index) { - if (disallow_fan_support && index >= 8) + if (disallow_fan_support && index >= 20) return 0; if (disallow_fan_type_call && - (index == 9 || index == 12 || index == 15)) + (index == 21 || index == 25 || index == 28)) return 0; if (index >= 0 && index <= 1 && !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP1)) From 46e65061793405766c8368738cb5ecf5eca6caf3 Mon Sep 17 00:00:00 2001 From: Grant Peltier Date: Fri, 14 May 2021 16:19:55 -0500 Subject: [PATCH 004/196] hwmon: (pmbus/isl68137) remove READ_TEMPERATURE_3 for RAA228228 [ Upstream commit 2a29db088c7ae7121801a0d7a60740ed2d18c4f3 ] The initial version of the RAA228228 datasheet claimed that the device supported READ_TEMPERATURE_3 but not READ_TEMPERATURE_1. It has since been discovered that the datasheet was incorrect. The RAA228228 does support READ_TEMPERATURE_1 but does not support READ_TEMPERATURE_3. Signed-off-by: Grant Peltier Fixes: 51fb91ed5a6f ("hwmon: (pmbus/isl68137) remove READ_TEMPERATURE_1 telemetry for RAA228228") Link: https://lore.kernel.org/r/20210514211954.GA24646@raspberrypi Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin --- drivers/hwmon/pmbus/isl68137.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hwmon/pmbus/isl68137.c b/drivers/hwmon/pmbus/isl68137.c index 7cad76e07f70..3f1b826dac8a 100644 --- a/drivers/hwmon/pmbus/isl68137.c +++ b/drivers/hwmon/pmbus/isl68137.c @@ -244,8 +244,8 @@ static int isl68137_probe(struct i2c_client *client) info->read_word_data = raa_dmpvr2_read_word_data; break; case raa_dmpvr2_2rail_nontc: - info->func[0] &= ~PMBUS_HAVE_TEMP; - info->func[1] &= ~PMBUS_HAVE_TEMP; + info->func[0] &= ~PMBUS_HAVE_TEMP3; + info->func[1] &= ~PMBUS_HAVE_TEMP3; fallthrough; case raa_dmpvr2_2rail: info->pages = 2; From 39a909a9720dd5a7b423f97c3737541d0ef76c06 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Tue, 4 May 2021 16:40:00 +0200 Subject: [PATCH 005/196] netfilter: conntrack: unregister ipv4 sockopts on error unwind [ Upstream commit 22cbdbcfb61acc78d5fc21ebb13ccc0d7e29f793 ] When ipv6 sockopt register fails, the ipv4 one needs to be removed. Fixes: a0ae2562c6c ("netfilter: conntrack: remove l3proto abstraction") Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin --- net/netfilter/nf_conntrack_proto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c index 47e9319d2cf3..71892822bbf5 100644 --- a/net/netfilter/nf_conntrack_proto.c +++ b/net/netfilter/nf_conntrack_proto.c @@ -660,7 +660,7 @@ int nf_conntrack_proto_init(void) #if IS_ENABLED(CONFIG_IPV6) cleanup_sockopt: - nf_unregister_sockopt(&so_getorigdst6); + nf_unregister_sockopt(&so_getorigdst); #endif return ret; } From 5148066edbdc89c6fe5bc419c31a5c22e5f83bdb Mon Sep 17 00:00:00 2001 From: Changbin Du Date: Wed, 24 Mar 2021 22:54:35 +0800 Subject: [PATCH 006/196] efi/fdt: fix panic when no valid fdt found [ Upstream commit 668a84c1bfb2b3fd5a10847825a854d63fac7baa ] setup_arch() would invoke efi_init()->efi_get_fdt_params(). If no valid fdt found then initial_boot_params will be null. So we should stop further fdt processing here. I encountered this issue on risc-v. Signed-off-by: Changbin Du Fixes: b91540d52a08b ("RISC-V: Add EFI runtime services") Signed-off-by: Ard Biesheuvel Signed-off-by: Sasha Levin --- drivers/firmware/efi/fdtparams.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/firmware/efi/fdtparams.c b/drivers/firmware/efi/fdtparams.c index bb042ab7c2be..e901f8564ca0 100644 --- a/drivers/firmware/efi/fdtparams.c +++ b/drivers/firmware/efi/fdtparams.c @@ -98,6 +98,9 @@ u64 __init efi_get_fdt_params(struct efi_memory_map_data *mm) BUILD_BUG_ON(ARRAY_SIZE(target) != ARRAY_SIZE(name)); BUILD_BUG_ON(ARRAY_SIZE(target) != ARRAY_SIZE(dt_params[0].params)); + if (!fdt) + return 0; + for (i = 0; i < ARRAY_SIZE(dt_params); i++) { node = fdt_path_offset(fdt, dt_params[i].path); if (node < 0) From b828601c752b1053a18f750bc413949cefa2a58b Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Fri, 30 Apr 2021 16:22:51 +0200 Subject: [PATCH 007/196] efi: Allow EFI_MEMORY_XP and EFI_MEMORY_RO both to be cleared [ Upstream commit 45add3cc99feaaf57d4b6f01d52d532c16a1caee ] UEFI spec 2.9, p.108, table 4-1 lists the scenario that both attributes are cleared with the description "No memory access protection is possible for Entry". So we can have valid entries where both attributes are cleared, so remove the check. Signed-off-by: Heiner Kallweit Fixes: 10f0d2f577053 ("efi: Implement generic support for the Memory Attributes table") Signed-off-by: Ard Biesheuvel Signed-off-by: Sasha Levin --- drivers/firmware/efi/memattr.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/firmware/efi/memattr.c b/drivers/firmware/efi/memattr.c index 5737cb0fcd44..0a9aba5f9cef 100644 --- a/drivers/firmware/efi/memattr.c +++ b/drivers/firmware/efi/memattr.c @@ -67,11 +67,6 @@ static bool entry_is_valid(const efi_memory_desc_t *in, efi_memory_desc_t *out) return false; } - if (!(in->attribute & (EFI_MEMORY_RO | EFI_MEMORY_XP))) { - pr_warn("Entry attributes invalid: RO and XP bits both cleared\n"); - return false; - } - if (PAGE_SIZE > EFI_PAGE_SIZE && (!PAGE_ALIGNED(in->phys_addr) || !PAGE_ALIGNED(in->num_pages << EFI_PAGE_SHIFT))) { From 951f8ef71d691f754483cc9d871cb493379fdb35 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 23 Apr 2021 14:48:31 +0300 Subject: [PATCH 008/196] efi/libstub: prevent read overflow in find_file_option() [ Upstream commit c4039b29fe9637e1135912813f830994af4c867f ] If the buffer has slashes up to the end then this will read past the end of the array. I don't anticipate that this is an issue for many people in real life, but it's the right thing to do and it makes static checkers happy. Fixes: 7a88a6227dc7 ("efi/libstub: Fix path separator regression") Signed-off-by: Dan Carpenter Signed-off-by: Ard Biesheuvel Signed-off-by: Sasha Levin --- drivers/firmware/efi/libstub/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/firmware/efi/libstub/file.c b/drivers/firmware/efi/libstub/file.c index 4e81c6077188..dd95f330fe6e 100644 --- a/drivers/firmware/efi/libstub/file.c +++ b/drivers/firmware/efi/libstub/file.c @@ -103,7 +103,7 @@ static int find_file_option(const efi_char16_t *cmdline, int cmdline_len, return 0; /* Skip any leading slashes */ - while (cmdline[i] == L'/' || cmdline[i] == L'\\') + while (i < cmdline_len && (cmdline[i] == L'/' || cmdline[i] == L'\\')) i++; while (--result_len > 0 && i < cmdline_len) { From 8d27efbb0ee49251169feda005ec244aef73f8a6 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Wed, 21 Apr 2021 21:46:36 +0200 Subject: [PATCH 009/196] efi: cper: fix snprintf() use in cper_dimm_err_location() [ Upstream commit 942859d969de7f6f7f2659a79237a758b42782da ] snprintf() should be given the full buffer size, not one less. And it guarantees nul-termination, so doing it manually afterwards is pointless. It's even potentially harmful (though probably not in practice because CPER_REC_LEN is 256), due to the "return how much would have been written had the buffer been big enough" semantics. I.e., if the bank and/or device strings are long enough that the "DIMM location ..." output gets truncated, writing to msg[n] is a buffer overflow. Signed-off-by: Rasmus Villemoes Fixes: 3760cd20402d4 ("CPER: Adjust code flow of some functions") Signed-off-by: Ard Biesheuvel Signed-off-by: Sasha Levin --- drivers/firmware/efi/cper.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c index e15d484b6a5a..ea7ca74fc173 100644 --- a/drivers/firmware/efi/cper.c +++ b/drivers/firmware/efi/cper.c @@ -276,8 +276,7 @@ static int cper_dimm_err_location(struct cper_mem_err_compact *mem, char *msg) if (!msg || !(mem->validation_bits & CPER_MEM_VALID_MODULE_HANDLE)) return 0; - n = 0; - len = CPER_REC_LEN - 1; + len = CPER_REC_LEN; dmi_memdev_name(mem->mem_dev_handle, &bank, &device); if (bank && device) n = snprintf(msg, len, "DIMM location: %s %s ", bank, device); @@ -286,7 +285,6 @@ static int cper_dimm_err_location(struct cper_mem_err_compact *mem, char *msg) "DIMM location: not present. DMI handle: 0x%.4x ", mem->mem_dev_handle); - msg[n] = '\0'; return n; } From c303db1211a751d1e2c6a016687ef5e9734ee4b8 Mon Sep 17 00:00:00 2001 From: Zhen Lei Date: Sat, 15 May 2021 10:04:58 +0800 Subject: [PATCH 010/196] vfio/pci: Fix error return code in vfio_ecap_init() [ Upstream commit d1ce2c79156d3baf0830990ab06d296477b93c26 ] The error code returned from vfio_ext_cap_len() is stored in 'len', not in 'ret'. Fixes: 89e1f7d4c66d ("vfio: Add PCI device driver") Reported-by: Hulk Robot Signed-off-by: Zhen Lei Reviewed-by: Max Gurtovoy Message-Id: <20210515020458.6771-1-thunder.leizhen@huawei.com> Signed-off-by: Alex Williamson Signed-off-by: Sasha Levin --- drivers/vfio/pci/vfio_pci_config.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c index a402adee8a21..47f21a6ca7fe 100644 --- a/drivers/vfio/pci/vfio_pci_config.c +++ b/drivers/vfio/pci/vfio_pci_config.c @@ -1581,7 +1581,7 @@ static int vfio_ecap_init(struct vfio_pci_device *vdev) if (len == 0xFF) { len = vfio_ext_cap_len(vdev, ecap, epos); if (len < 0) - return ret; + return len; } } From c25454a4f4cbb172c47a6a49506de8ab133928a1 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sat, 15 May 2021 12:08:56 -0700 Subject: [PATCH 011/196] vfio/pci: zap_vma_ptes() needs MMU [ Upstream commit 2a55ca37350171d9b43d561528f23d4130097255 ] zap_vma_ptes() is only available when CONFIG_MMU is set/enabled. Without CONFIG_MMU, vfio_pci.o has build errors, so make VFIO_PCI depend on MMU. riscv64-linux-ld: drivers/vfio/pci/vfio_pci.o: in function `vfio_pci_mmap_open': vfio_pci.c:(.text+0x1ec): undefined reference to `zap_vma_ptes' riscv64-linux-ld: drivers/vfio/pci/vfio_pci.o: in function `.L0 ': vfio_pci.c:(.text+0x165c): undefined reference to `zap_vma_ptes' Fixes: 11c4cd07ba11 ("vfio-pci: Fault mmaps to enable vma tracking") Signed-off-by: Randy Dunlap Reported-by: kernel test robot Cc: Alex Williamson Cc: Cornelia Huck Cc: kvm@vger.kernel.org Cc: Jason Gunthorpe Cc: Eric Auger Message-Id: <20210515190856.2130-1-rdunlap@infradead.org> Signed-off-by: Alex Williamson Signed-off-by: Sasha Levin --- drivers/vfio/pci/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig index 0f28bf99efeb..4e1107767e29 100644 --- a/drivers/vfio/pci/Kconfig +++ b/drivers/vfio/pci/Kconfig @@ -2,6 +2,7 @@ config VFIO_PCI tristate "VFIO support for PCI devices" depends on VFIO && PCI && EVENTFD + depends on MMU select VFIO_VIRQFD select IRQ_BYPASS_MANAGER help From 2adb0313b132cdade0827820f1d0db4833dfb4ef Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Thu, 20 May 2021 13:36:41 +0000 Subject: [PATCH 012/196] samples: vfio-mdev: fix error handing in mdpy_fb_probe() [ Upstream commit 752774ce7793a1f8baa55aae31f3b4caac49cbe4 ] Fix to return a negative error code from the framebuffer_alloc() error handling case instead of 0, also release regions in some error handing cases. Fixes: cacade1946a4 ("sample: vfio mdev display - guest driver") Reported-by: Hulk Robot Signed-off-by: Wei Yongjun Message-Id: <20210520133641.1421378-1-weiyongjun1@huawei.com> Signed-off-by: Alex Williamson Signed-off-by: Sasha Levin --- samples/vfio-mdev/mdpy-fb.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/samples/vfio-mdev/mdpy-fb.c b/samples/vfio-mdev/mdpy-fb.c index 21dbf63d6e41..9ec93d90e8a5 100644 --- a/samples/vfio-mdev/mdpy-fb.c +++ b/samples/vfio-mdev/mdpy-fb.c @@ -117,22 +117,27 @@ static int mdpy_fb_probe(struct pci_dev *pdev, if (format != DRM_FORMAT_XRGB8888) { pci_err(pdev, "format mismatch (0x%x != 0x%x)\n", format, DRM_FORMAT_XRGB8888); - return -EINVAL; + ret = -EINVAL; + goto err_release_regions; } if (width < 100 || width > 10000) { pci_err(pdev, "width (%d) out of range\n", width); - return -EINVAL; + ret = -EINVAL; + goto err_release_regions; } if (height < 100 || height > 10000) { pci_err(pdev, "height (%d) out of range\n", height); - return -EINVAL; + ret = -EINVAL; + goto err_release_regions; } pci_info(pdev, "mdpy found: %dx%d framebuffer\n", width, height); info = framebuffer_alloc(sizeof(struct mdpy_fb_par), &pdev->dev); - if (!info) + if (!info) { + ret = -ENOMEM; goto err_release_regions; + } pci_set_drvdata(pdev, info); par = info->par; From 46ae882bb19a12e8df9936e8dcf1924b6abb2b56 Mon Sep 17 00:00:00 2001 From: Max Gurtovoy Date: Tue, 18 May 2021 22:21:31 +0300 Subject: [PATCH 013/196] vfio/platform: fix module_put call in error flow [ Upstream commit dc51ff91cf2d1e9a2d941da483602f71d4a51472 ] The ->parent_module is the one that use in try_module_get. It should also be the one the we use in module_put during vfio_platform_open(). Fixes: 32a2d71c4e80 ("vfio: platform: introduce vfio-platform-base module") Signed-off-by: Max Gurtovoy Message-Id: <20210518192133.59195-1-mgurtovoy@nvidia.com> Signed-off-by: Alex Williamson Signed-off-by: Sasha Levin --- drivers/vfio/platform/vfio_platform_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c index fb4b385191f2..e83a7cd15c95 100644 --- a/drivers/vfio/platform/vfio_platform_common.c +++ b/drivers/vfio/platform/vfio_platform_common.c @@ -289,7 +289,7 @@ err_irq: vfio_platform_regions_cleanup(vdev); err_reg: mutex_unlock(&driver_lock); - module_put(THIS_MODULE); + module_put(vdev->parent_module); return ret; } From 4b1aba653642e469d954afefafa842025e10f00a Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Mon, 24 May 2021 22:54:57 +0300 Subject: [PATCH 014/196] ipvs: ignore IP_VS_SVC_F_HASHED flag when adding service [ Upstream commit 56e4ee82e850026d71223262c07df7d6af3bd872 ] syzbot reported memory leak [1] when adding service with HASHED flag. We should ignore this flag both from sockopt and netlink provided data, otherwise the service is not hashed and not visible while releasing resources. [1] BUG: memory leak unreferenced object 0xffff888115227800 (size 512): comm "syz-executor263", pid 8658, jiffies 4294951882 (age 12.560s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmalloc include/linux/slab.h:556 [inline] [] kzalloc include/linux/slab.h:686 [inline] [] ip_vs_add_service+0x598/0x7c0 net/netfilter/ipvs/ip_vs_ctl.c:1343 [] do_ip_vs_set_ctl+0x810/0xa40 net/netfilter/ipvs/ip_vs_ctl.c:2570 [] nf_setsockopt+0x68/0xa0 net/netfilter/nf_sockopt.c:101 [] ip_setsockopt+0x259/0x1ff0 net/ipv4/ip_sockglue.c:1435 [] raw_setsockopt+0x18c/0x1b0 net/ipv4/raw.c:857 [] __sys_setsockopt+0x1b0/0x360 net/socket.c:2117 [] __do_sys_setsockopt net/socket.c:2128 [inline] [] __se_sys_setsockopt net/socket.c:2125 [inline] [] __x64_sys_setsockopt+0x22/0x30 net/socket.c:2125 [] do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 [] entry_SYSCALL_64_after_hwframe+0x44/0xae Reported-and-tested-by: syzbot+e562383183e4b1766930@syzkaller.appspotmail.com Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Julian Anastasov Reviewed-by: Simon Horman Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin --- net/netfilter/ipvs/ip_vs_ctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index d45dbcba8b49..c25097092a06 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -1367,7 +1367,7 @@ ip_vs_add_service(struct netns_ipvs *ipvs, struct ip_vs_service_user_kern *u, ip_vs_addr_copy(svc->af, &svc->addr, &u->addr); svc->port = u->port; svc->fwmark = u->fwmark; - svc->flags = u->flags; + svc->flags = u->flags & ~IP_VS_SVC_F_HASHED; svc->timeout = u->timeout * HZ; svc->netmask = u->netmask; svc->ipvs = ipvs; From 39b92726a38092c704c4e1bcc8262a8959ae978e Mon Sep 17 00:00:00 2001 From: Tom Rix Date: Fri, 7 May 2021 12:18:19 -0700 Subject: [PATCH 015/196] HID: logitech-hidpp: initialize level variable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Upstream commit 81c8bf9170477d453b24a6bc3300d201d641e645 ] Static analysis reports this representative problem hid-logitech-hidpp.c:1356:23: warning: Assigned value is garbage or undefined hidpp->battery.level = level; ^ ~~~~~ In some cases, 'level' is never set in hidpp20_battery_map_status_voltage() Since level is not available on all hw, initialize level to unknown. Fixes: be281368f297 ("hid-logitech-hidpp: read battery voltage from newer devices") Signed-off-by: Tom Rix Reviewed-by: Filipe Laíns Signed-off-by: Jiri Kosina Signed-off-by: Sasha Levin --- drivers/hid/hid-logitech-hidpp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 74ebfb12c360..66b105162039 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -1259,6 +1259,7 @@ static int hidpp20_battery_map_status_voltage(u8 data[3], int *voltage, int status; long flags = (long) data[2]; + *level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN; if (flags & 0x80) switch (flags & 0x07) { From 744db828d6f9a0908f64d337642bb8ee227a7ea9 Mon Sep 17 00:00:00 2001 From: Zhen Lei Date: Sat, 8 May 2021 10:47:37 +0800 Subject: [PATCH 016/196] HID: pidff: fix error return code in hid_pidff_init() [ Upstream commit 3dd653c077efda8152f4dd395359617d577a54cd ] Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 224ee88fe395 ("Input: add force feedback driver for PID devices") Reported-by: Hulk Robot Signed-off-by: Zhen Lei Signed-off-by: Jiri Kosina Signed-off-by: Sasha Levin --- drivers/hid/usbhid/hid-pidff.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hid/usbhid/hid-pidff.c b/drivers/hid/usbhid/hid-pidff.c index fddac7c72f64..07a9fe97d2e0 100644 --- a/drivers/hid/usbhid/hid-pidff.c +++ b/drivers/hid/usbhid/hid-pidff.c @@ -1292,6 +1292,7 @@ int hid_pidff_init(struct hid_device *hid) if (pidff->pool[PID_DEVICE_MANAGED_POOL].value && pidff->pool[PID_DEVICE_MANAGED_POOL].value[0] == 0) { + error = -EPERM; hid_notice(hid, "device does not support device managed pool\n"); goto fail; From 56c45ab00abab9481bb55151bf5719ec7c93f01a Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 14 May 2021 15:58:50 +0200 Subject: [PATCH 017/196] HID: i2c-hid: fix format string mismatch [ Upstream commit dc5f9f55502e13ba05731d5046a14620aa2ff456 ] clang doesn't like printing a 32-bit integer using %hX format string: drivers/hid/i2c-hid/i2c-hid-core.c:994:18: error: format specifies type 'unsigned short' but the argument has type '__u32' (aka 'unsigned int') [-Werror,-Wformat] client->name, hid->vendor, hid->product); ^~~~~~~~~~~ drivers/hid/i2c-hid/i2c-hid-core.c:994:31: error: format specifies type 'unsigned short' but the argument has type '__u32' (aka 'unsigned int') [-Werror,-Wformat] client->name, hid->vendor, hid->product); ^~~~~~~~~~~~ Use an explicit cast to truncate it to the low 16 bits instead. Fixes: 9ee3e06610fd ("HID: i2c-hid: override HID descriptors for certain devices") Signed-off-by: Arnd Bergmann Reviewed-by: Nathan Chancellor Signed-off-by: Jiri Kosina Signed-off-by: Sasha Levin --- drivers/hid/i2c-hid/i2c-hid-core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c index cb7758d59014..13bc59ed1d9e 100644 --- a/drivers/hid/i2c-hid/i2c-hid-core.c +++ b/drivers/hid/i2c-hid/i2c-hid-core.c @@ -1131,8 +1131,8 @@ static int i2c_hid_probe(struct i2c_client *client, hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID); hid->product = le16_to_cpu(ihid->hdesc.wProductID); - snprintf(hid->name, sizeof(hid->name), "%s %04hX:%04hX", - client->name, hid->vendor, hid->product); + snprintf(hid->name, sizeof(hid->name), "%s %04X:%04X", + client->name, (u16)hid->vendor, (u16)hid->product); strlcpy(hid->phys, dev_name(&client->dev), sizeof(hid->phys)); ihid->quirks = i2c_hid_lookup_quirk(hid->vendor, hid->product); From 4f00f9c169d9f6840613a44490d7800be8d73a61 Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Wed, 26 May 2021 23:00:27 +0300 Subject: [PATCH 018/196] devlink: Correct VIRTUAL port to not have phys_port attributes [ Upstream commit b28d8f0c25a9b0355116cace5f53ea52bd4020c8 ] Physical port name, port number attributes do not belong to virtual port flavour. When VF or SF virtual ports are registered they incorrectly append "np0" string in the netdevice name of the VF/SF. Before this fix, VF netdevice name were ens2f0np0v0, ens2f0np0v1 for VF 0 and 1 respectively. After the fix, they are ens2f0v0, ens2f0v1. With this fix, reading /sys/class/net/ens2f0v0/phys_port_name returns -EOPNOTSUPP. Also devlink port show example for 2 VFs on one PF to ensure that any physical port attributes are not exposed. $ devlink port show pci/0000:06:00.0/65535: type eth netdev ens2f0np0 flavour physical port 0 splittable false pci/0000:06:00.3/196608: type eth netdev ens2f0v0 flavour virtual splittable false pci/0000:06:00.4/262144: type eth netdev ens2f0v1 flavour virtual splittable false This change introduces a netdevice name change on systemd/udev version 245 and higher which honors phys_port_name sysfs file for generation of netdevice name. This also aligns to phys_port_name usage which is limited to switchdev ports as described in [1]. [1] https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/tree/Documentation/networking/switchdev.rst Fixes: acf1ee44ca5d ("devlink: Introduce devlink port flavour virtual") Signed-off-by: Parav Pandit Reviewed-by: Jiri Pirko Link: https://lore.kernel.org/r/20210526200027.14008-1-parav@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- net/core/devlink.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/core/devlink.c b/net/core/devlink.c index 5d397838bceb..90badb6f7227 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -693,7 +693,6 @@ static int devlink_nl_port_attrs_put(struct sk_buff *msg, case DEVLINK_PORT_FLAVOUR_PHYSICAL: case DEVLINK_PORT_FLAVOUR_CPU: case DEVLINK_PORT_FLAVOUR_DSA: - case DEVLINK_PORT_FLAVOUR_VIRTUAL: if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, attrs->phys.port_number)) return -EMSGSIZE; @@ -8376,7 +8375,6 @@ static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port, switch (attrs->flavour) { case DEVLINK_PORT_FLAVOUR_PHYSICAL: - case DEVLINK_PORT_FLAVOUR_VIRTUAL: if (!attrs->split) n = snprintf(name, len, "p%u", attrs->phys.port_number); else @@ -8413,6 +8411,8 @@ static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port, n = snprintf(name, len, "pf%uvf%u", attrs->pci_vf.pf, attrs->pci_vf.vf); break; + case DEVLINK_PORT_FLAVOUR_VIRTUAL: + return -EOPNOTSUPP; } if (n >= len) From f07c548314776231f0d47d73ec6caa5b17e876e8 Mon Sep 17 00:00:00 2001 From: Paul Blakey Date: Wed, 26 May 2021 14:44:09 +0300 Subject: [PATCH 019/196] net/sched: act_ct: Offload connections with commit action [ Upstream commit 0cc254e5aa37cf05f65bcdcdc0ac5c58010feb33 ] Currently established connections are not offloaded if the filter has a "ct commit" action. This behavior will not offload connections of the following scenario: $ tc_filter add dev $DEV ingress protocol ip prio 1 flower \ ct_state -trk \ action ct commit action goto chain 1 $ tc_filter add dev $DEV ingress protocol ip chain 1 prio 1 flower \ action mirred egress redirect dev $DEV2 $ tc_filter add dev $DEV2 ingress protocol ip prio 1 flower \ action ct commit action goto chain 1 $ tc_filter add dev $DEV2 ingress protocol ip prio 1 chain 1 flower \ ct_state +trk+est \ action mirred egress redirect dev $DEV Offload established connections, regardless of the commit flag. Fixes: 46475bb20f4b ("net/sched: act_ct: Software offload of established flows") Reviewed-by: Oz Shlomo Reviewed-by: Jiri Pirko Acked-by: Marcelo Ricardo Leitner Signed-off-by: Paul Blakey Link: https://lore.kernel.org/r/1622029449-27060-1-git-send-email-paulb@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- net/sched/act_ct.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c index aba3cd85f284..6376b7b22325 100644 --- a/net/sched/act_ct.c +++ b/net/sched/act_ct.c @@ -979,7 +979,7 @@ static int tcf_ct_act(struct sk_buff *skb, const struct tc_action *a, */ cached = tcf_ct_skb_nfct_cached(net, skb, p->zone, force); if (!cached) { - if (!commit && tcf_ct_flow_table_lookup(p, skb, family)) { + if (tcf_ct_flow_table_lookup(p, skb, family)) { skip_add = true; goto do_nat; } @@ -1019,10 +1019,11 @@ do_nat: * even if the connection is already confirmed. */ nf_conntrack_confirm(skb); - } else if (!skip_add) { - tcf_ct_flow_table_process_conn(p->ct_ft, ct, ctinfo); } + if (!skip_add) + tcf_ct_flow_table_process_conn(p->ct_ft, ct, ctinfo); + out_push: skb_push_rcsum(skb, nh_ofs); From be0d8507268646a6ca524c0f40f29c501b3d78d9 Mon Sep 17 00:00:00 2001 From: Ariel Levkovich Date: Wed, 26 May 2021 20:01:10 +0300 Subject: [PATCH 020/196] net/sched: act_ct: Fix ct template allocation for zone 0 [ Upstream commit fb91702b743dec78d6507c53a2dec8a8883f509d ] Fix current behavior of skipping template allocation in case the ct action is in zone 0. Skipping the allocation may cause the datapath ct code to ignore the entire ct action with all its attributes (commit, nat) in case the ct action in zone 0 was preceded by a ct clear action. The ct clear action sets the ct_state to untracked and resets the skb->_nfct pointer. Under these conditions and without an allocated ct template, the skb->_nfct pointer will remain NULL which will cause the tc ct action handler to exit without handling commit and nat actions, if such exist. For example, the following rule in OVS dp: recirc_id(0x2),ct_state(+new-est-rel-rpl+trk),ct_label(0/0x1), \ in_port(eth0),actions:ct_clear,ct(commit,nat(src=10.11.0.12)), \ recirc(0x37a) Will result in act_ct skipping the commit and nat actions in zone 0. The change removes the skipping of template allocation for zone 0 and treats it the same as any other zone. Fixes: b57dc7c13ea9 ("net/sched: Introduce action ct") Signed-off-by: Ariel Levkovich Acked-by: Marcelo Ricardo Leitner Link: https://lore.kernel.org/r/20210526170110.54864-1-lariel@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- net/sched/act_ct.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c index 6376b7b22325..315a5b2f3add 100644 --- a/net/sched/act_ct.c +++ b/net/sched/act_ct.c @@ -1199,9 +1199,6 @@ static int tcf_ct_fill_params(struct net *net, sizeof(p->zone)); } - if (p->zone == NF_CT_DEFAULT_ZONE_ID) - return 0; - nf_ct_zone_init(&zone, p->zone, NF_CT_DEFAULT_ZONE_DIR, 0); tmpl = nf_ct_tmpl_alloc(net, &zone, GFP_KERNEL); if (!tmpl) { From b198f77a3613a066cefa91f2cd9e0766612a19ce Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Thu, 27 May 2021 16:31:38 -0700 Subject: [PATCH 021/196] mptcp: always parse mptcp options for MPC reqsk [ Upstream commit 06f9a435b3aa12f4de6da91f11fdce8ce7b46205 ] In subflow_syn_recv_sock() we currently skip options parsing for OoO packet, given that such packets may not carry the relevant MPC option. If the peer generates an MPC+data TSO packet and some of the early segments are lost or get reorder, we server will ignore the peer key, causing transient, unexpected fallback to TCP. The solution is always parsing the incoming MPTCP options, and do the fallback only for in-order packets. This actually cleans the existing code a bit. Fixes: d22f4988ffec ("mptcp: process MP_CAPABLE data option") Reported-by: Matthieu Baerts Signed-off-by: Paolo Abeni Signed-off-by: Mat Martineau Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- net/mptcp/subflow.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index bdd6af38a9ae..96b6aca9d0ae 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -527,21 +527,20 @@ static struct sock *subflow_syn_recv_sock(const struct sock *sk, /* if the sk is MP_CAPABLE, we try to fetch the client key */ if (subflow_req->mp_capable) { - if (TCP_SKB_CB(skb)->seq != subflow_req->ssn_offset + 1) { - /* here we can receive and accept an in-window, - * out-of-order pkt, which will not carry the MP_CAPABLE - * opt even on mptcp enabled paths - */ - goto create_msk; - } - + /* we can receive and accept an in-window, out-of-order pkt, + * which may not carry the MP_CAPABLE opt even on mptcp enabled + * paths: always try to extract the peer key, and fallback + * for packets missing it. + * Even OoO DSS packets coming legitly after dropped or + * reordered MPC will cause fallback, but we don't have other + * options. + */ mptcp_get_options(skb, &mp_opt); if (!mp_opt.mp_capable) { fallback = true; goto create_child; } -create_msk: new_msk = mptcp_sk_clone(listener->conn, &mp_opt, req); if (!new_msk) fallback = true; From df7c913f90c3dcda988a254141bf01eb3bb6f123 Mon Sep 17 00:00:00 2001 From: Sagi Grimberg Date: Thu, 27 May 2021 18:16:38 -0700 Subject: [PATCH 022/196] nvme-rdma: fix in-casule data send for chained sgls [ Upstream commit 12b2aaadb6d5ef77434e8db21f469f46fe2d392e ] We have only 2 inline sg entries and we allow 4 sg entries for the send wr sge. Larger sgls entries will be chained. However when we build in-capsule send wr sge, we iterate without taking into account that the sgl may be chained and still fit in-capsule (which can happen if the sgl is bigger than 2, but lower-equal to 4). Fix in-capsule data mapping to correctly iterate chained sgls. Fixes: 38e1800275d3 ("nvme-rdma: Avoid preallocating big SGL for data") Reported-by: Walker, Benjamin Signed-off-by: Sagi Grimberg Reviewed-by: Max Gurtovoy Signed-off-by: Christoph Hellwig Signed-off-by: Sasha Levin --- drivers/nvme/host/rdma.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 8b326508a480..e6d58402b829 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -1327,16 +1327,17 @@ static int nvme_rdma_map_sg_inline(struct nvme_rdma_queue *queue, int count) { struct nvme_sgl_desc *sg = &c->common.dptr.sgl; - struct scatterlist *sgl = req->data_sgl.sg_table.sgl; struct ib_sge *sge = &req->sge[1]; + struct scatterlist *sgl; u32 len = 0; int i; - for (i = 0; i < count; i++, sgl++, sge++) { + for_each_sg(req->data_sgl.sg_table.sgl, sgl, count, i) { sge->addr = sg_dma_address(sgl); sge->length = sg_dma_len(sgl); sge->lkey = queue->device->pd->local_dma_lkey; len += sge->length; + sge++; } sg->addr = cpu_to_le64(queue->ctrl->ctrl.icdoff); From 100c872c75112da26630309f4020991ffab2a11d Mon Sep 17 00:00:00 2001 From: Erik Kaneda Date: Fri, 21 May 2021 15:28:08 -0700 Subject: [PATCH 023/196] ACPICA: Clean up context mutex during object deletion [ Upstream commit e4dfe108371214500ee10c2cf19268f53acaa803 ] ACPICA commit bc43c878fd4ff27ba75b1d111b97ee90d4a82707 Fixes: c27f3d011b08 ("Fix race in GenericSerialBus (I2C) and GPIO OpRegion parameter handling") Link: https://github.com/acpica/acpica/commit/bc43c878 Reported-by: John Garry Reported-by: Xiang Chen Tested-by: Xiang Chen Signed-off-by: Erik Kaneda Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/acpica/utdelete.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c index 4c0d4e434196..72d2c0b65633 100644 --- a/drivers/acpi/acpica/utdelete.c +++ b/drivers/acpi/acpica/utdelete.c @@ -285,6 +285,14 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) } break; + case ACPI_TYPE_LOCAL_ADDRESS_HANDLER: + + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, + "***** Address handler %p\n", object)); + + acpi_os_delete_mutex(object->address_space.context_mutex); + break; + default: break; From 091283e3d5eb9f424b85e71804fc26092c3c4915 Mon Sep 17 00:00:00 2001 From: Li Huafei Date: Tue, 1 Jun 2021 17:27:50 +0800 Subject: [PATCH 024/196] perf probe: Fix NULL pointer dereference in convert_variable_location() [ Upstream commit 3cb17cce1e76ccc5499915a4d7e095a1ad6bf7ff ] If we just check whether the variable can be converted, 'tvar' should be a null pointer. However, the null pointer check is missing in the 'Constant value' execution path. The following cases can trigger this problem: $ cat test.c #include void main(void) { int a; const int b = 1; asm volatile("mov %1, %0" : "=r"(a): "i"(b)); printf("a: %d\n", a); } $ gcc test.c -o test -O -g $ sudo ./perf probe -x ./test -L "main" 0 void main(void) { 2 int a; const int b = 1; asm volatile("mov %1, %0" : "=r"(a): "i"(b)); 6 printf("a: %d\n", a); } $ sudo ./perf probe -x ./test -V "main:6" Segmentation fault The check on 'tvar' is added. If 'tavr' is a null pointer, we return 0 to indicate that the variable can be converted. Now, we can successfully show the variables that can be accessed. $ sudo ./perf probe -x ./test -V "main:6" Available variables at main:6 @ char* __fmt int a int b However, the variable 'b' cannot be tracked. $ sudo ./perf probe -x ./test -D "main:6 b" Failed to find the location of the 'b' variable at this address. Perhaps it has been optimized out. Use -V with the --range option to show 'b' location range. Error: Failed to add events. This is because __die_find_variable_cb() did not successfully match variable 'b', which has the DW_AT_const_value attribute instead of DW_AT_location. We added support for DW_AT_const_value in __die_find_variable_cb(). With this modification, we can successfully track the variable 'b'. $ sudo ./perf probe -x ./test -D "main:6 b" p:probe_test/main_L6 /home/lhf/test:0x1156 b=\1:s32 Fixes: 66f69b219716 ("perf probe: Support DW_AT_const_value constant value") Signed-off-by: Li Huafei Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Frank Ch. Eigler Cc: Jianlin Lv Cc: Jiri Olsa Cc: Mark Rutland Cc: Masami Hiramatsu Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Srikar Dronamraju Cc: Yang Jihong Cc: Zhang Jinhao http://lore.kernel.org/lkml/20210601092750.169601-1-lihuafei1@huawei.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin --- tools/perf/util/dwarf-aux.c | 8 ++++++-- tools/perf/util/probe-finder.c | 3 +++ 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c index 7b2d471a6419..4343356f3cf9 100644 --- a/tools/perf/util/dwarf-aux.c +++ b/tools/perf/util/dwarf-aux.c @@ -975,9 +975,13 @@ static int __die_find_variable_cb(Dwarf_Die *die_mem, void *data) if ((tag == DW_TAG_formal_parameter || tag == DW_TAG_variable) && die_compare_name(die_mem, fvp->name) && - /* Does the DIE have location information or external instance? */ + /* + * Does the DIE have location information or const value + * or external instance? + */ (dwarf_attr(die_mem, DW_AT_external, &attr) || - dwarf_attr(die_mem, DW_AT_location, &attr))) + dwarf_attr(die_mem, DW_AT_location, &attr) || + dwarf_attr(die_mem, DW_AT_const_value, &attr))) return DIE_FIND_CB_END; if (dwarf_haspc(die_mem, fvp->addr)) return DIE_FIND_CB_CONTINUE; diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index 76dd349aa48d..fdafbfcef687 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -190,6 +190,9 @@ static int convert_variable_location(Dwarf_Die *vr_die, Dwarf_Addr addr, immediate_value_is_supported()) { Dwarf_Sword snum; + if (!tvar) + return 0; + dwarf_formsdata(&attr, &snum); ret = asprintf(&tvar->value, "\\%ld", (long)snum); From 09fdb6747b7ed3bc4da720301de52ac7b159214a Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Mon, 31 May 2021 13:20:45 +0300 Subject: [PATCH 025/196] net: dsa: tag_8021q: fix the VLAN IDs used for encoding sub-VLANs [ Upstream commit 4ef8d857b5f494e62bce9085031563fda35f9563 ] When using sub-VLANs in the range of 1-7, the resulting value from: rx_vid = dsa_8021q_rx_vid_subvlan(ds, port, subvlan); is wrong according to the description from tag_8021q.c: | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | +-----------+-----+-----------------+-----------+-----------------------+ | DIR | SVL | SWITCH_ID | SUBVLAN | PORT | +-----------+-----+-----------------+-----------+-----------------------+ For example, when ds->index == 0, port == 3 and subvlan == 1, dsa_8021q_rx_vid_subvlan() returns 1027, same as it returns for subvlan == 0, but it should have returned 1043. This is because the low portion of the subvlan bits are not masked properly when writing into the 12-bit VLAN value. They are masked into bits 4:3, but they should be masked into bits 5:4. Fixes: 3eaae1d05f2b ("net: dsa: tag_8021q: support up to 8 VLANs per port using sub-VLANs") Signed-off-by: Vladimir Oltean Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/dsa/tag_8021q.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/dsa/tag_8021q.c b/net/dsa/tag_8021q.c index 8e3e8a5b8559..a00b513c22a1 100644 --- a/net/dsa/tag_8021q.c +++ b/net/dsa/tag_8021q.c @@ -64,7 +64,7 @@ #define DSA_8021Q_SUBVLAN_HI_SHIFT 9 #define DSA_8021Q_SUBVLAN_HI_MASK GENMASK(9, 9) #define DSA_8021Q_SUBVLAN_LO_SHIFT 4 -#define DSA_8021Q_SUBVLAN_LO_MASK GENMASK(4, 3) +#define DSA_8021Q_SUBVLAN_LO_MASK GENMASK(5, 4) #define DSA_8021Q_SUBVLAN_HI(x) (((x) & GENMASK(2, 2)) >> 2) #define DSA_8021Q_SUBVLAN_LO(x) ((x) & GENMASK(1, 0)) #define DSA_8021Q_SUBVLAN(x) \ From a5de17bb916a7f5b2e5b35a7c961ebee6d95bb28 Mon Sep 17 00:00:00 2001 From: Alexander Aring Date: Mon, 31 May 2021 17:00:30 -0400 Subject: [PATCH 026/196] net: sock: fix in-kernel mark setting [ Upstream commit dd9082f4a9f94280fbbece641bf8fc0a25f71f7a ] This patch fixes the in-kernel mark setting by doing an additional sk_dst_reset() which was introduced by commit 50254256f382 ("sock: Reset dst when changing sk_mark via setsockopt"). The code is now shared to avoid any further suprises when changing the socket mark value. Fixes: 84d1c617402e ("net: sock: add sock_set_mark") Reported-by: Marcelo Ricardo Leitner Signed-off-by: Alexander Aring Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/core/sock.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/net/core/sock.c b/net/core/sock.c index dee29f41beaf..7de51ea15cdf 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -807,10 +807,18 @@ void sock_set_rcvbuf(struct sock *sk, int val) } EXPORT_SYMBOL(sock_set_rcvbuf); +static void __sock_set_mark(struct sock *sk, u32 val) +{ + if (val != sk->sk_mark) { + sk->sk_mark = val; + sk_dst_reset(sk); + } +} + void sock_set_mark(struct sock *sk, u32 val) { lock_sock(sk); - sk->sk_mark = val; + __sock_set_mark(sk, val); release_sock(sk); } EXPORT_SYMBOL(sock_set_mark); @@ -1118,10 +1126,10 @@ set_sndbuf: case SO_MARK: if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) { ret = -EPERM; - } else if (val != sk->sk_mark) { - sk->sk_mark = val; - sk_dst_reset(sk); + break; } + + __sock_set_mark(sk, val); break; case SO_RXQ_OVFL: From 874ece252ed269f5ac1f55167a3f2735ab0f249f Mon Sep 17 00:00:00 2001 From: Maxim Mikityanskiy Date: Tue, 1 Jun 2021 15:07:59 +0300 Subject: [PATCH 027/196] net/tls: Replace TLS_RX_SYNC_RUNNING with RCU [ Upstream commit 05fc8b6cbd4f979a6f25759c4a17dd5f657f7ecd ] RCU synchronization is guaranteed to finish in finite time, unlike a busy loop that polls a flag. This patch is a preparation for the bugfix in the next patch, where the same synchronize_net() call will also be used to sync with the TX datapath. Signed-off-by: Maxim Mikityanskiy Reviewed-by: Tariq Toukan Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- include/net/tls.h | 1 - net/tls/tls_device.c | 10 +++------- 2 files changed, 3 insertions(+), 8 deletions(-) diff --git a/include/net/tls.h b/include/net/tls.h index 2bdd802212fe..d32a06705587 100644 --- a/include/net/tls.h +++ b/include/net/tls.h @@ -193,7 +193,6 @@ struct tls_offload_context_tx { (sizeof(struct tls_offload_context_tx) + TLS_DRIVER_STATE_SIZE_TX) enum tls_context_flags { - TLS_RX_SYNC_RUNNING = 0, /* Unlike RX where resync is driven entirely by the core in TX only * the driver knows when things went out of sync, so we need the flag * to be atomic. diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index a3ab2d3d4e4e..abc04045577d 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -680,15 +680,13 @@ static void tls_device_resync_rx(struct tls_context *tls_ctx, struct tls_offload_context_rx *rx_ctx = tls_offload_ctx_rx(tls_ctx); struct net_device *netdev; - if (WARN_ON(test_and_set_bit(TLS_RX_SYNC_RUNNING, &tls_ctx->flags))) - return; - trace_tls_device_rx_resync_send(sk, seq, rcd_sn, rx_ctx->resync_type); + rcu_read_lock(); netdev = READ_ONCE(tls_ctx->netdev); if (netdev) netdev->tlsdev_ops->tls_dev_resync(netdev, sk, seq, rcd_sn, TLS_OFFLOAD_CTX_DIR_RX); - clear_bit_unlock(TLS_RX_SYNC_RUNNING, &tls_ctx->flags); + rcu_read_unlock(); TLS_INC_STATS(sock_net(sk), LINUX_MIB_TLSRXDEVICERESYNC); } @@ -1298,9 +1296,7 @@ static int tls_device_down(struct net_device *netdev) netdev->tlsdev_ops->tls_dev_del(netdev, ctx, TLS_OFFLOAD_CTX_DIR_RX); WRITE_ONCE(ctx->netdev, NULL); - smp_mb__before_atomic(); /* pairs with test_and_set_bit() */ - while (test_bit(TLS_RX_SYNC_RUNNING, &ctx->flags)) - usleep_range(10, 200); + synchronize_net(); dev_put(netdev); list_del_init(&ctx->list); From f1d4184f128dede82a59a841658ed40d4e6d3aa2 Mon Sep 17 00:00:00 2001 From: Maxim Mikityanskiy Date: Tue, 1 Jun 2021 15:08:00 +0300 Subject: [PATCH 028/196] net/tls: Fix use-after-free after the TLS device goes down and up [ Upstream commit c55dcdd435aa6c6ad6ccac0a4c636d010ee367a4 ] When a netdev with active TLS offload goes down, tls_device_down is called to stop the offload and tear down the TLS context. However, the socket stays alive, and it still points to the TLS context, which is now deallocated. If a netdev goes up, while the connection is still active, and the data flow resumes after a number of TCP retransmissions, it will lead to a use-after-free of the TLS context. This commit addresses this bug by keeping the context alive until its normal destruction, and implements the necessary fallbacks, so that the connection can resume in software (non-offloaded) kTLS mode. On the TX side tls_sw_fallback is used to encrypt all packets. The RX side already has all the necessary fallbacks, because receiving non-decrypted packets is supported. The thing needed on the RX side is to block resync requests, which are normally produced after receiving non-decrypted packets. The necessary synchronization is implemented for a graceful teardown: first the fallbacks are deployed, then the driver resources are released (it used to be possible to have a tls_dev_resync after tls_dev_del). A new flag called TLS_RX_DEV_DEGRADED is added to indicate the fallback mode. It's used to skip the RX resync logic completely, as it becomes useless, and some objects may be released (for example, resync_async, which is allocated and freed by the driver). Fixes: e8f69799810c ("net/tls: Add generic NIC offload infrastructure") Signed-off-by: Maxim Mikityanskiy Reviewed-by: Tariq Toukan Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- include/net/tls.h | 9 ++++++ net/tls/tls_device.c | 54 +++++++++++++++++++++++++++++++---- net/tls/tls_device_fallback.c | 7 +++++ net/tls/tls_main.c | 1 + 4 files changed, 65 insertions(+), 6 deletions(-) diff --git a/include/net/tls.h b/include/net/tls.h index d32a06705587..43891b28fc48 100644 --- a/include/net/tls.h +++ b/include/net/tls.h @@ -193,6 +193,11 @@ struct tls_offload_context_tx { (sizeof(struct tls_offload_context_tx) + TLS_DRIVER_STATE_SIZE_TX) enum tls_context_flags { + /* tls_device_down was called after the netdev went down, device state + * was released, and kTLS works in software, even though rx_conf is + * still TLS_HW (needed for transition). + */ + TLS_RX_DEV_DEGRADED = 0, /* Unlike RX where resync is driven entirely by the core in TX only * the driver knows when things went out of sync, so we need the flag * to be atomic. @@ -264,6 +269,7 @@ struct tls_context { /* cache cold stuff */ struct proto *sk_proto; + struct sock *sk; void (*sk_destruct)(struct sock *sk); @@ -446,6 +452,9 @@ static inline u16 tls_user_config(struct tls_context *ctx, bool tx) struct sk_buff * tls_validate_xmit_skb(struct sock *sk, struct net_device *dev, struct sk_buff *skb); +struct sk_buff * +tls_validate_xmit_skb_sw(struct sock *sk, struct net_device *dev, + struct sk_buff *skb); static inline bool tls_is_sk_tx_device_offloaded(struct sock *sk) { diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index abc04045577d..f718c7346088 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -50,6 +50,7 @@ static void tls_device_gc_task(struct work_struct *work); static DECLARE_WORK(tls_device_gc_work, tls_device_gc_task); static LIST_HEAD(tls_device_gc_list); static LIST_HEAD(tls_device_list); +static LIST_HEAD(tls_device_down_list); static DEFINE_SPINLOCK(tls_device_lock); static void tls_device_free_ctx(struct tls_context *ctx) @@ -759,6 +760,8 @@ void tls_device_rx_resync_new_rec(struct sock *sk, u32 rcd_len, u32 seq) if (tls_ctx->rx_conf != TLS_HW) return; + if (unlikely(test_bit(TLS_RX_DEV_DEGRADED, &tls_ctx->flags))) + return; prot = &tls_ctx->prot_info; rx_ctx = tls_offload_ctx_rx(tls_ctx); @@ -961,6 +964,17 @@ int tls_device_decrypted(struct sock *sk, struct tls_context *tls_ctx, ctx->sw.decrypted |= is_decrypted; + if (unlikely(test_bit(TLS_RX_DEV_DEGRADED, &tls_ctx->flags))) { + if (likely(is_encrypted || is_decrypted)) + return 0; + + /* After tls_device_down disables the offload, the next SKB will + * likely have initial fragments decrypted, and final ones not + * decrypted. We need to reencrypt that single SKB. + */ + return tls_device_reencrypt(sk, skb); + } + /* Return immediately if the record is either entirely plaintext or * entirely ciphertext. Otherwise handle reencrypt partially decrypted * record. @@ -1288,6 +1302,26 @@ static int tls_device_down(struct net_device *netdev) spin_unlock_irqrestore(&tls_device_lock, flags); list_for_each_entry_safe(ctx, tmp, &list, list) { + /* Stop offloaded TX and switch to the fallback. + * tls_is_sk_tx_device_offloaded will return false. + */ + WRITE_ONCE(ctx->sk->sk_validate_xmit_skb, tls_validate_xmit_skb_sw); + + /* Stop the RX and TX resync. + * tls_dev_resync must not be called after tls_dev_del. + */ + WRITE_ONCE(ctx->netdev, NULL); + + /* Start skipping the RX resync logic completely. */ + set_bit(TLS_RX_DEV_DEGRADED, &ctx->flags); + + /* Sync with inflight packets. After this point: + * TX: no non-encrypted packets will be passed to the driver. + * RX: resync requests from the driver will be ignored. + */ + synchronize_net(); + + /* Release the offload context on the driver side. */ if (ctx->tx_conf == TLS_HW) netdev->tlsdev_ops->tls_dev_del(netdev, ctx, TLS_OFFLOAD_CTX_DIR_TX); @@ -1295,13 +1329,21 @@ static int tls_device_down(struct net_device *netdev) !test_bit(TLS_RX_DEV_CLOSED, &ctx->flags)) netdev->tlsdev_ops->tls_dev_del(netdev, ctx, TLS_OFFLOAD_CTX_DIR_RX); - WRITE_ONCE(ctx->netdev, NULL); - synchronize_net(); - dev_put(netdev); - list_del_init(&ctx->list); - if (refcount_dec_and_test(&ctx->refcount)) - tls_device_free_ctx(ctx); + dev_put(netdev); + + /* Move the context to a separate list for two reasons: + * 1. When the context is deallocated, list_del is called. + * 2. It's no longer an offloaded context, so we don't want to + * run offload-specific code on this context. + */ + spin_lock_irqsave(&tls_device_lock, flags); + list_move_tail(&ctx->list, &tls_device_down_list); + spin_unlock_irqrestore(&tls_device_lock, flags); + + /* Device contexts for RX and TX will be freed in on sk_destruct + * by tls_device_free_ctx. rx_conf and tx_conf stay in TLS_HW. + */ } up_write(&device_offload_lock); diff --git a/net/tls/tls_device_fallback.c b/net/tls/tls_device_fallback.c index 28895333701e..0d40016bf69e 100644 --- a/net/tls/tls_device_fallback.c +++ b/net/tls/tls_device_fallback.c @@ -430,6 +430,13 @@ struct sk_buff *tls_validate_xmit_skb(struct sock *sk, } EXPORT_SYMBOL_GPL(tls_validate_xmit_skb); +struct sk_buff *tls_validate_xmit_skb_sw(struct sock *sk, + struct net_device *dev, + struct sk_buff *skb) +{ + return tls_sw_fallback(sk, skb); +} + struct sk_buff *tls_encrypt_skb(struct sk_buff *skb) { return tls_sw_fallback(skb->sk, skb); diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index 8d93cea99f2c..32a51b20509c 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -633,6 +633,7 @@ struct tls_context *tls_ctx_create(struct sock *sk) mutex_init(&ctx->tx_lock); rcu_assign_pointer(icsk->icsk_ulp_data, ctx); ctx->sk_proto = READ_ONCE(sk->sk_prot); + ctx->sk = sk; return ctx; } From c1ea8c0e71ead1efaaba33e241c1e7d35e9cbf51 Mon Sep 17 00:00:00 2001 From: Aya Levin Date: Tue, 25 May 2021 15:35:25 +0300 Subject: [PATCH 029/196] net/mlx5e: Fix incompatible casting [ Upstream commit d8ec92005f806dfa7524e9171eca707c0bb1267e ] Device supports setting of a single fec mode at a time, enforce this by bitmap_weight == 1. Input from fec command is in u32, avoid cast to unsigned long and use bitmap_from_arr32 to populate bitmap safely. Fixes: 4bd9d5070b92 ("net/mlx5e: Enforce setting of a single FEC mode") Signed-off-by: Aya Levin Reviewed-by: Tariq Toukan Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index 986f0d86e94d..bc7c1962f9e6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -1618,12 +1618,13 @@ static int mlx5e_set_fecparam(struct net_device *netdev, { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5_core_dev *mdev = priv->mdev; + unsigned long fec_bitmap; u16 fec_policy = 0; int mode; int err; - if (bitmap_weight((unsigned long *)&fecparam->fec, - ETHTOOL_FEC_LLRS_BIT + 1) > 1) + bitmap_from_arr32(&fec_bitmap, &fecparam->fec, sizeof(fecparam->fec) * BITS_PER_BYTE); + if (bitmap_weight(&fec_bitmap, ETHTOOL_FEC_LLRS_BIT + 1) > 1) return -EOPNOTSUPP; for (mode = 0; mode < ARRAY_SIZE(pplm_fec_2_ethtool); mode++) { From 730700337593b41551e17427bc33edcbd95d3f05 Mon Sep 17 00:00:00 2001 From: Moshe Shemesh Date: Thu, 8 Apr 2021 07:30:57 +0300 Subject: [PATCH 030/196] net/mlx5: Check firmware sync reset requested is set before trying to abort it [ Upstream commit 5940e64281c09976ce2b560244217e610bf9d029 ] In case driver sent NACK to firmware on sync reset request, it will get sync reset abort event while it didn't set sync reset requested mode. Thus, on abort sync reset event handler, driver should check reset requested is set before trying to stop sync reset poll. Fixes: 7dd6df329d4c ("net/mlx5: Handle sync reset abort event") Signed-off-by: Moshe Shemesh Reviewed-by: Tariq Toukan Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c index f9042e147c7f..ee710ce00795 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c @@ -354,6 +354,9 @@ static void mlx5_sync_reset_abort_event(struct work_struct *work) reset_abort_work); struct mlx5_core_dev *dev = fw_reset->dev; + if (!test_bit(MLX5_FW_RESET_FLAGS_RESET_REQUESTED, &fw_reset->reset_flags)) + return; + mlx5_sync_reset_clear_reset_requested(dev, true); mlx5_core_warn(dev, "PCI Sync FW Update Reset Aborted.\n"); } From c8972cf28ea11043280135859903ad69b03e0851 Mon Sep 17 00:00:00 2001 From: Roi Dayan Date: Tue, 13 Apr 2021 14:35:22 +0300 Subject: [PATCH 031/196] net/mlx5e: Check for needed capability for cvlan matching [ Upstream commit afe93f71b5d3cdae7209213ec8ef25210b837b93 ] If not supported show an error and return instead of trying to offload to the hardware and fail. Fixes: 699e96ddf47f ("net/mlx5e: Support offloading tc double vlan headers match") Reported-by: Pablo Neira Ayuso Signed-off-by: Roi Dayan Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 1bdeb948f56d..80abdb0b47d7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -2253,11 +2253,13 @@ static int __parse_cls_flower(struct mlx5e_priv *priv, misc_parameters); struct flow_rule *rule = flow_cls_offload_flow_rule(f); struct flow_dissector *dissector = rule->match.dissector; + enum fs_flow_table_type fs_type; u16 addr_type = 0; u8 ip_proto = 0; u8 *match_level; int err; + fs_type = mlx5e_is_eswitch_flow(flow) ? FS_FT_FDB : FS_FT_NIC_RX; match_level = outer_match_level; if (dissector->used_keys & @@ -2382,6 +2384,13 @@ static int __parse_cls_flower(struct mlx5e_priv *priv, if (match.mask->vlan_id || match.mask->vlan_priority || match.mask->vlan_tpid) { + if (!MLX5_CAP_FLOWTABLE_TYPE(priv->mdev, ft_field_support.outer_second_vid, + fs_type)) { + NL_SET_ERR_MSG_MOD(extack, + "Matching on CVLAN is not supported"); + return -EOPNOTSUPP; + } + if (match.key->vlan_tpid == htons(ETH_P_8021AD)) { MLX5_SET(fte_match_set_misc, misc_c, outer_second_svlan_tag, 1); From 2a8cda3867cd06fbc3f414a78e1c692f973d21e4 Mon Sep 17 00:00:00 2001 From: Yevgeny Kliteynik Date: Wed, 9 Dec 2020 16:40:38 +0200 Subject: [PATCH 032/196] net/mlx5: DR, Create multi-destination flow table with level less than 64 [ Upstream commit 216214c64a8c1cb9078c2c0aec7bb4a2f8e75397 ] Flow table that contains flow pointing to multiple flow tables or multiple TIRs must have a level lower than 64. In our case it applies to muli- destination flow table. Fix the level of the created table to comply with HW Spec definitions, and still make sure that its level lower than SW-owned tables, so that it would be possible to point from the multi-destination FW table to SW tables. Fixes: 34583beea4b7 ("net/mlx5: DR, Create multi-destination table for SW-steering use") Signed-off-by: Yevgeny Kliteynik Reviewed-by: Alex Vesker Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c | 3 ++- include/linux/mlx5/mlx5_ifc.h | 2 ++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c index 1fbcd012bb85..7ccfd40586ce 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c @@ -112,7 +112,8 @@ int mlx5dr_fw_create_md_tbl(struct mlx5dr_domain *dmn, int ret; ft_attr.table_type = MLX5_FLOW_TABLE_TYPE_FDB; - ft_attr.level = dmn->info.caps.max_ft_level - 2; + ft_attr.level = min_t(int, dmn->info.caps.max_ft_level - 2, + MLX5_FT_MAX_MULTIPATH_LEVEL); ft_attr.reformat_en = reformat_req; ft_attr.decap_en = reformat_req; diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index cc9ee0776974..af8f4e2cf21d 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -1223,6 +1223,8 @@ enum mlx5_fc_bulk_alloc_bitmask { #define MLX5_FC_BULK_NUM_FCS(fc_enum) (MLX5_FC_BULK_SIZE_FACTOR * (fc_enum)) +#define MLX5_FT_MAX_MULTIPATH_LEVEL 63 + enum { MLX5_STEERING_FORMAT_CONNECTX_5 = 0, MLX5_STEERING_FORMAT_CONNECTX_6DX = 1, From c440cd080761b18a52cac20f2a42e5da1e3995af Mon Sep 17 00:00:00 2001 From: Max Gurtovoy Date: Tue, 1 Jun 2021 19:22:05 +0300 Subject: [PATCH 033/196] nvmet: fix freeing unallocated p2pmem [ Upstream commit bcd9a0797d73eeff659582f23277e7ab6e5f18f3 ] In case p2p device was found but the p2p pool is empty, the nvme target is still trying to free the sgl from the p2p pool instead of the regular sgl pool and causing a crash (BUG() is called). Instead, assign the p2p_dev for the request only if it was allocated from p2p pool. This is the crash that was caused: [Sun May 30 19:13:53 2021] ------------[ cut here ]------------ [Sun May 30 19:13:53 2021] kernel BUG at lib/genalloc.c:518! [Sun May 30 19:13:53 2021] invalid opcode: 0000 [#1] SMP PTI ... [Sun May 30 19:13:53 2021] kernel BUG at lib/genalloc.c:518! ... [Sun May 30 19:13:53 2021] RIP: 0010:gen_pool_free_owner+0xa8/0xb0 ... [Sun May 30 19:13:53 2021] Call Trace: [Sun May 30 19:13:53 2021] ------------[ cut here ]------------ [Sun May 30 19:13:53 2021] pci_free_p2pmem+0x2b/0x70 [Sun May 30 19:13:53 2021] pci_p2pmem_free_sgl+0x4f/0x80 [Sun May 30 19:13:53 2021] nvmet_req_free_sgls+0x1e/0x80 [nvmet] [Sun May 30 19:13:53 2021] kernel BUG at lib/genalloc.c:518! [Sun May 30 19:13:53 2021] nvmet_rdma_release_rsp+0x4e/0x1f0 [nvmet_rdma] [Sun May 30 19:13:53 2021] nvmet_rdma_send_done+0x1c/0x60 [nvmet_rdma] Fixes: c6e3f1339812 ("nvmet: add metadata support for block devices") Reviewed-by: Israel Rukshin Signed-off-by: Max Gurtovoy Reviewed-by: Logan Gunthorpe Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig Signed-off-by: Sasha Levin --- drivers/nvme/target/core.c | 33 ++++++++++++++++----------------- 1 file changed, 16 insertions(+), 17 deletions(-) diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 46e4f7ea34c8..8b939e9db470 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -988,19 +988,23 @@ static unsigned int nvmet_data_transfer_len(struct nvmet_req *req) return req->transfer_len - req->metadata_len; } -static int nvmet_req_alloc_p2pmem_sgls(struct nvmet_req *req) +static int nvmet_req_alloc_p2pmem_sgls(struct pci_dev *p2p_dev, + struct nvmet_req *req) { - req->sg = pci_p2pmem_alloc_sgl(req->p2p_dev, &req->sg_cnt, + req->sg = pci_p2pmem_alloc_sgl(p2p_dev, &req->sg_cnt, nvmet_data_transfer_len(req)); if (!req->sg) goto out_err; if (req->metadata_len) { - req->metadata_sg = pci_p2pmem_alloc_sgl(req->p2p_dev, + req->metadata_sg = pci_p2pmem_alloc_sgl(p2p_dev, &req->metadata_sg_cnt, req->metadata_len); if (!req->metadata_sg) goto out_free_sg; } + + req->p2p_dev = p2p_dev; + return 0; out_free_sg: pci_p2pmem_free_sgl(req->p2p_dev, req->sg); @@ -1008,25 +1012,19 @@ out_err: return -ENOMEM; } -static bool nvmet_req_find_p2p_dev(struct nvmet_req *req) +static struct pci_dev *nvmet_req_find_p2p_dev(struct nvmet_req *req) { - if (!IS_ENABLED(CONFIG_PCI_P2PDMA)) - return false; - - if (req->sq->ctrl && req->sq->qid && req->ns) { - req->p2p_dev = radix_tree_lookup(&req->sq->ctrl->p2p_ns_map, - req->ns->nsid); - if (req->p2p_dev) - return true; - } - - req->p2p_dev = NULL; - return false; + if (!IS_ENABLED(CONFIG_PCI_P2PDMA) || + !req->sq->ctrl || !req->sq->qid || !req->ns) + return NULL; + return radix_tree_lookup(&req->sq->ctrl->p2p_ns_map, req->ns->nsid); } int nvmet_req_alloc_sgls(struct nvmet_req *req) { - if (nvmet_req_find_p2p_dev(req) && !nvmet_req_alloc_p2pmem_sgls(req)) + struct pci_dev *p2p_dev = nvmet_req_find_p2p_dev(req); + + if (p2p_dev && !nvmet_req_alloc_p2pmem_sgls(p2p_dev, req)) return 0; req->sg = sgl_alloc(nvmet_data_transfer_len(req), GFP_KERNEL, @@ -1055,6 +1053,7 @@ void nvmet_req_free_sgls(struct nvmet_req *req) pci_p2pmem_free_sgl(req->p2p_dev, req->sg); if (req->metadata_sg) pci_p2pmem_free_sgl(req->p2p_dev, req->metadata_sg); + req->p2p_dev = NULL; } else { sgl_free(req->sg); if (req->metadata_sg) From 5f3429c05e4028a0e241afdad856dd15dec2ffb9 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Thu, 27 May 2021 21:54:42 +0200 Subject: [PATCH 034/196] netfilter: nft_ct: skip expectations for confirmed conntrack [ Upstream commit 1710eb913bdcda3917f44d383c32de6bdabfc836 ] nft_ct_expect_obj_eval() calls nf_ct_ext_add() for a confirmed conntrack entry. However, nf_ct_ext_add() can only be called for !nf_ct_is_confirmed(). [ 1825.349056] WARNING: CPU: 0 PID: 1279 at net/netfilter/nf_conntrack_extend.c:48 nf_ct_xt_add+0x18e/0x1a0 [nf_conntrack] [ 1825.351391] RIP: 0010:nf_ct_ext_add+0x18e/0x1a0 [nf_conntrack] [ 1825.351493] Code: 41 5c 41 5d 41 5e 41 5f c3 41 bc 0a 00 00 00 e9 15 ff ff ff ba 09 00 00 00 31 f6 4c 89 ff e8 69 6c 3d e9 eb 96 45 31 ed eb cd <0f> 0b e9 b1 fe ff ff e8 86 79 14 e9 eb bf 0f 1f 40 00 0f 1f 44 00 [ 1825.351721] RSP: 0018:ffffc90002e1f1e8 EFLAGS: 00010202 [ 1825.351790] RAX: 000000000000000e RBX: ffff88814f5783c0 RCX: ffffffffc0e4f887 [ 1825.351881] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff88814f578440 [ 1825.351971] RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88814f578447 [ 1825.352060] R10: ffffed1029eaf088 R11: 0000000000000001 R12: ffff88814f578440 [ 1825.352150] R13: ffff8882053f3a00 R14: 0000000000000000 R15: 0000000000000a20 [ 1825.352240] FS: 00007f992261c900(0000) GS:ffff889faec00000(0000) knlGS:0000000000000000 [ 1825.352343] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1825.352417] CR2: 000056070a4d1158 CR3: 000000015efe0000 CR4: 0000000000350ee0 [ 1825.352508] Call Trace: [ 1825.352544] nf_ct_helper_ext_add+0x10/0x60 [nf_conntrack] [ 1825.352641] nft_ct_expect_obj_eval+0x1b8/0x1e0 [nft_ct] [ 1825.352716] nft_do_chain+0x232/0x850 [nf_tables] Add the ct helper extension only for unconfirmed conntrack. Skip rule evaluation if the ct helper extension does not exist. Thus, you can only create expectations from the first packet. It should be possible to remove this limitation by adding a new action to attach a generic ct helper to the first packet. Then, use this ct helper extension from follow up packets to create the ct expectation. While at it, add a missing check to skip the template conntrack too and remove check for IPCT_UNTRACK which is implicit to !ct. Fixes: 857b46027d6f ("netfilter: nft_ct: add ct expectations support") Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin --- net/netfilter/nft_ct.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c index a1b0aac46e9e..70d46e0bbf06 100644 --- a/net/netfilter/nft_ct.c +++ b/net/netfilter/nft_ct.c @@ -1218,7 +1218,7 @@ static void nft_ct_expect_obj_eval(struct nft_object *obj, struct nf_conn *ct; ct = nf_ct_get(pkt->skb, &ctinfo); - if (!ct || ctinfo == IP_CT_UNTRACKED) { + if (!ct || nf_ct_is_confirmed(ct) || nf_ct_is_template(ct)) { regs->verdict.code = NFT_BREAK; return; } From 8d614eebc003bb7763993e6fcdc8f853401bc17e Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Fri, 28 May 2021 13:45:16 +0200 Subject: [PATCH 035/196] netfilter: nfnetlink_cthelper: hit EBUSY on updates if size mismatches [ Upstream commit 8971ee8b087750a23f3cd4dc55bff2d0303fd267 ] The private helper data size cannot be updated. However, updates that contain NFCTH_PRIV_DATA_LEN might bogusly hit EBUSY even if the size is the same. Fixes: 12f7a505331e ("netfilter: add user-space connection tracking helper infrastructure") Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin --- net/netfilter/nfnetlink_cthelper.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c index 5b0d0a77379c..91afbf8ac8cf 100644 --- a/net/netfilter/nfnetlink_cthelper.c +++ b/net/netfilter/nfnetlink_cthelper.c @@ -380,10 +380,14 @@ static int nfnl_cthelper_update(const struct nlattr * const tb[], struct nf_conntrack_helper *helper) { + u32 size; int ret; - if (tb[NFCTH_PRIV_DATA_LEN]) - return -EBUSY; + if (tb[NFCTH_PRIV_DATA_LEN]) { + size = ntohl(nla_get_be32(tb[NFCTH_PRIV_DATA_LEN])); + if (size != helper->data_len) + return -EBUSY; + } if (tb[NFCTH_POLICY]) { ret = nfnl_cthelper_update_policy(helper, tb[NFCTH_POLICY]); From 4cf297ef595ce98cb4e9d80ae3e00bb5af0a8de0 Mon Sep 17 00:00:00 2001 From: Zhihao Cheng Date: Tue, 1 Jun 2021 09:19:35 +0000 Subject: [PATCH 036/196] drm/i915/selftests: Fix return value check in live_breadcrumbs_smoketest() [ Upstream commit 10c1f0cbcea93beec5d3bdc02b1a3b577b4985e7 ] In case of error, the function live_context() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: 52c0fdb25c7c ("drm/i915: Replace global breadcrumbs with per-context interrupt tracking") Reported-by: Hulk Robot Signed-off-by: Zhihao Cheng Reviewed-by: Tvrtko Ursulin Link: https://patchwork.freedesktop.org/patch/msgid/33c46ef24cd547d0ad21dc106441491a@intel.com [tursulin: Wrap commit text, fix Fixes: tag.] Signed-off-by: Tvrtko Ursulin (cherry picked from commit 8f4caef8d5401b42c6367d46c23da5e0e8111516) Signed-off-by: Jani Nikula Signed-off-by: Sasha Levin --- drivers/gpu/drm/i915/selftests/i915_request.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c index e424a6d1a68c..7a72faf29f27 100644 --- a/drivers/gpu/drm/i915/selftests/i915_request.c +++ b/drivers/gpu/drm/i915/selftests/i915_request.c @@ -1391,8 +1391,8 @@ static int live_breadcrumbs_smoketest(void *arg) for (n = 0; n < smoke[0].ncontexts; n++) { smoke[0].contexts[n] = live_context(i915, file); - if (!smoke[0].contexts[n]) { - ret = -ENOMEM; + if (IS_ERR(smoke[0].contexts[n])) { + ret = PTR_ERR(smoke[0].contexts[n]); goto out_contexts; } } From cdf3f6db1a86fc1e3d70423f4ee4fa81e4831157 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Wed, 27 Jan 2021 18:46:15 +0100 Subject: [PATCH 037/196] bpf: Simplify cases in bpf_base_func_proto [ Upstream commit 61ca36c8c4eb3bae35a285b1ae18c514cde65439 ] !perfmon_capable() is checked before the last switch(func_id) in bpf_base_func_proto. Thus, the cases BPF_FUNC_trace_printk and BPF_FUNC_snprintf_btf can be moved to that last switch(func_id) to omit the inline !perfmon_capable() checks. Signed-off-by: Tobias Klauser Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20210127174615.3038-1-tklauser@distanz.ch Signed-off-by: Sasha Levin --- kernel/bpf/helpers.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index c489430cac78..d0fc091d2ab4 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -707,14 +707,6 @@ bpf_base_func_proto(enum bpf_func_id func_id) return &bpf_spin_lock_proto; case BPF_FUNC_spin_unlock: return &bpf_spin_unlock_proto; - case BPF_FUNC_trace_printk: - if (!perfmon_capable()) - return NULL; - return bpf_get_trace_printk_proto(); - case BPF_FUNC_snprintf_btf: - if (!perfmon_capable()) - return NULL; - return &bpf_snprintf_btf_proto; case BPF_FUNC_jiffies64: return &bpf_jiffies64_proto; case BPF_FUNC_per_cpu_ptr: @@ -729,6 +721,8 @@ bpf_base_func_proto(enum bpf_func_id func_id) return NULL; switch (func_id) { + case BPF_FUNC_trace_printk: + return bpf_get_trace_printk_proto(); case BPF_FUNC_get_current_task: return &bpf_get_current_task_proto; case BPF_FUNC_probe_read_user: @@ -739,6 +733,8 @@ bpf_base_func_proto(enum bpf_func_id func_id) return &bpf_probe_read_user_str_proto; case BPF_FUNC_probe_read_kernel_str: return &bpf_probe_read_kernel_str_proto; + case BPF_FUNC_snprintf_btf: + return &bpf_snprintf_btf_proto; default: return NULL; } From ff5039ec75c83d2ed5b781dc7733420ee8c985fc Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Fri, 28 May 2021 09:16:31 +0000 Subject: [PATCH 038/196] bpf, lockdown, audit: Fix buggy SELinux lockdown permission checks [ Upstream commit ff40e51043af63715ab413995ff46996ecf9583f ] Commit 59438b46471a ("security,lockdown,selinux: implement SELinux lockdown") added an implementation of the locked_down LSM hook to SELinux, with the aim to restrict which domains are allowed to perform operations that would breach lockdown. This is indirectly also getting audit subsystem involved to report events. The latter is problematic, as reported by Ondrej and Serhei, since it can bring down the whole system via audit: 1) The audit events that are triggered due to calls to security_locked_down() can OOM kill a machine, see below details [0]. 2) It also seems to be causing a deadlock via avc_has_perm()/slow_avc_audit() when trying to wake up kauditd, for example, when using trace_sched_switch() tracepoint, see details in [1]. Triggering this was not via some hypothetical corner case, but with existing tools like runqlat & runqslower from bcc, for example, which make use of this tracepoint. Rough call sequence goes like: rq_lock(rq) -> -------------------------+ trace_sched_switch() -> | bpf_prog_xyz() -> +-> deadlock selinux_lockdown() -> | audit_log_end() -> | wake_up_interruptible() -> | try_to_wake_up() -> | rq_lock(rq) --------------+ What's worse is that the intention of 59438b46471a to further restrict lockdown settings for specific applications in respect to the global lockdown policy is completely broken for BPF. The SELinux policy rule for the current lockdown check looks something like this: allow : lockdown { }; However, this doesn't match with the 'current' task where the security_locked_down() is executed, example: httpd does a syscall. There is a tracing program attached to the syscall which triggers a BPF program to run, which ends up doing a bpf_probe_read_kernel{,_str}() helper call. The selinux_lockdown() hook does the permission check against 'current', that is, httpd in this example. httpd has literally zero relation to this tracing program, and it would be nonsensical having to write an SELinux policy rule against httpd to let the tracing helper pass. The policy in this case needs to be against the entity that is installing the BPF program. For example, if bpftrace would generate a histogram of syscall counts by user space application: bpftrace -e 'tracepoint:raw_syscalls:sys_enter { @[comm] = count(); }' bpftrace would then go and generate a BPF program from this internally. One way of doing it [for the sake of the example] could be to call bpf_get_current_task() helper and then access current->comm via one of bpf_probe_read_kernel{,_str}() helpers. So the program itself has nothing to do with httpd or any other random app doing a syscall here. The BPF program _explicitly initiated_ the lockdown check. The allow/deny policy belongs in the context of bpftrace: meaning, you want to grant bpftrace access to use these helpers, but other tracers on the system like my_random_tracer _not_. Therefore fix all three issues at the same time by taking a completely different approach for the security_locked_down() hook, that is, move the check into the program verification phase where we actually retrieve the BPF func proto. This also reliably gets the task (current) that is trying to install the BPF tracing program, e.g. bpftrace/bcc/perf/systemtap/etc, and it also fixes the OOM since we're moving this out of the BPF helper's fast-path which can be called several millions of times per second. The check is then also in line with other security_locked_down() hooks in the system where the enforcement is performed at open/load time, for example, open_kcore() for /proc/kcore access or module_sig_check() for module signatures just to pick few random ones. What's out of scope in the fix as well as in other security_locked_down() hook locations /outside/ of BPF subsystem is that if the lockdown policy changes on the fly there is no retrospective action. This requires a different discussion, potentially complex infrastructure, and it's also not clear whether this can be solved generically. Either way, it is out of scope for a suitable stable fix which this one is targeting. Note that the breakage is specifically on 59438b46471a where it started to rely on 'current' as UAPI behavior, and _not_ earlier infrastructure such as 9d1f8be5cf42 ("bpf: Restrict bpf when kernel lockdown is in confidentiality mode"). [0] https://bugzilla.redhat.com/show_bug.cgi?id=1955585, Jakub Hrozek says: I starting seeing this with F-34. When I run a container that is traced with BPF to record the syscalls it is doing, auditd is flooded with messages like: type=AVC msg=audit(1619784520.593:282387): avc: denied { confidentiality } for pid=476 comm="auditd" lockdown_reason="use of bpf to read kernel RAM" scontext=system_u:system_r:auditd_t:s0 tcontext=system_u:system_r:auditd_t:s0 tclass=lockdown permissive=0 This seems to be leading to auditd running out of space in the backlog buffer and eventually OOMs the machine. [...] auditd running at 99% CPU presumably processing all the messages, eventually I get: Apr 30 12:20:42 fedora kernel: audit: backlog limit exceeded Apr 30 12:20:42 fedora kernel: audit: backlog limit exceeded Apr 30 12:20:42 fedora kernel: audit: audit_backlog=2152579 > audit_backlog_limit=64 Apr 30 12:20:42 fedora kernel: audit: audit_backlog=2152626 > audit_backlog_limit=64 Apr 30 12:20:42 fedora kernel: audit: audit_backlog=2152694 > audit_backlog_limit=64 Apr 30 12:20:42 fedora kernel: audit: audit_lost=6878426 audit_rate_limit=0 audit_backlog_limit=64 Apr 30 12:20:45 fedora kernel: oci-seccomp-bpf invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=-1000 Apr 30 12:20:45 fedora kernel: CPU: 0 PID: 13284 Comm: oci-seccomp-bpf Not tainted 5.11.12-300.fc34.x86_64 #1 Apr 30 12:20:45 fedora kernel: Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-2.fc32 04/01/2014 [...] [1] https://lore.kernel.org/linux-audit/CANYvDQN7H5tVp47fbYcRasv4XF07eUbsDwT_eDCHXJUj43J7jQ@mail.gmail.com/, Serhei Makarov says: Upstream kernel 5.11.0-rc7 and later was found to deadlock during a bpf_probe_read_compat() call within a sched_switch tracepoint. The problem is reproducible with the reg_alloc3 testcase from SystemTap's BPF backend testsuite on x86_64 as well as the runqlat, runqslower tools from bcc on ppc64le. Example stack trace: [...] [ 730.868702] stack backtrace: [ 730.869590] CPU: 1 PID: 701 Comm: in:imjournal Not tainted, 5.12.0-0.rc2.20210309git144c79ef3353.166.fc35.x86_64 #1 [ 730.871605] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014 [ 730.873278] Call Trace: [ 730.873770] dump_stack+0x7f/0xa1 [ 730.874433] check_noncircular+0xdf/0x100 [ 730.875232] __lock_acquire+0x1202/0x1e10 [ 730.876031] ? __lock_acquire+0xfc0/0x1e10 [ 730.876844] lock_acquire+0xc2/0x3a0 [ 730.877551] ? __wake_up_common_lock+0x52/0x90 [ 730.878434] ? lock_acquire+0xc2/0x3a0 [ 730.879186] ? lock_is_held_type+0xa7/0x120 [ 730.880044] ? skb_queue_tail+0x1b/0x50 [ 730.880800] _raw_spin_lock_irqsave+0x4d/0x90 [ 730.881656] ? __wake_up_common_lock+0x52/0x90 [ 730.882532] __wake_up_common_lock+0x52/0x90 [ 730.883375] audit_log_end+0x5b/0x100 [ 730.884104] slow_avc_audit+0x69/0x90 [ 730.884836] avc_has_perm+0x8b/0xb0 [ 730.885532] selinux_lockdown+0xa5/0xd0 [ 730.886297] security_locked_down+0x20/0x40 [ 730.887133] bpf_probe_read_compat+0x66/0xd0 [ 730.887983] bpf_prog_250599c5469ac7b5+0x10f/0x820 [ 730.888917] trace_call_bpf+0xe9/0x240 [ 730.889672] perf_trace_run_bpf_submit+0x4d/0xc0 [ 730.890579] perf_trace_sched_switch+0x142/0x180 [ 730.891485] ? __schedule+0x6d8/0xb20 [ 730.892209] __schedule+0x6d8/0xb20 [ 730.892899] schedule+0x5b/0xc0 [ 730.893522] exit_to_user_mode_prepare+0x11d/0x240 [ 730.894457] syscall_exit_to_user_mode+0x27/0x70 [ 730.895361] entry_SYSCALL_64_after_hwframe+0x44/0xae [...] Fixes: 59438b46471a ("security,lockdown,selinux: implement SELinux lockdown") Reported-by: Ondrej Mosnacek Reported-by: Jakub Hrozek Reported-by: Serhei Makarov Reported-by: Jiri Olsa Signed-off-by: Daniel Borkmann Acked-by: Alexei Starovoitov Tested-by: Jiri Olsa Cc: Paul Moore Cc: James Morris Cc: Jerome Marchand Cc: Frank Eigler Cc: Linus Torvalds Link: https://lore.kernel.org/bpf/01135120-8bf7-df2e-cff0-1d73f1f841c3@iogearbox.net Signed-off-by: Sasha Levin --- kernel/bpf/helpers.c | 7 +++++-- kernel/trace/bpf_trace.c | 32 ++++++++++++-------------------- 2 files changed, 17 insertions(+), 22 deletions(-) diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index d0fc091d2ab4..f7e99bb8c3b6 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "../../lib/kstrtox.h" @@ -728,11 +729,13 @@ bpf_base_func_proto(enum bpf_func_id func_id) case BPF_FUNC_probe_read_user: return &bpf_probe_read_user_proto; case BPF_FUNC_probe_read_kernel: - return &bpf_probe_read_kernel_proto; + return security_locked_down(LOCKDOWN_BPF_READ) < 0 ? + NULL : &bpf_probe_read_kernel_proto; case BPF_FUNC_probe_read_user_str: return &bpf_probe_read_user_str_proto; case BPF_FUNC_probe_read_kernel_str: - return &bpf_probe_read_kernel_str_proto; + return security_locked_down(LOCKDOWN_BPF_READ) < 0 ? + NULL : &bpf_probe_read_kernel_str_proto; case BPF_FUNC_snprintf_btf: return &bpf_snprintf_btf_proto; default: diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index fcbfc9564996..01710831fd02 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -212,16 +212,11 @@ const struct bpf_func_proto bpf_probe_read_user_str_proto = { static __always_inline int bpf_probe_read_kernel_common(void *dst, u32 size, const void *unsafe_ptr) { - int ret = security_locked_down(LOCKDOWN_BPF_READ); + int ret; - if (unlikely(ret < 0)) - goto fail; ret = copy_from_kernel_nofault(dst, unsafe_ptr, size); if (unlikely(ret < 0)) - goto fail; - return ret; -fail: - memset(dst, 0, size); + memset(dst, 0, size); return ret; } @@ -243,10 +238,7 @@ const struct bpf_func_proto bpf_probe_read_kernel_proto = { static __always_inline int bpf_probe_read_kernel_str_common(void *dst, u32 size, const void *unsafe_ptr) { - int ret = security_locked_down(LOCKDOWN_BPF_READ); - - if (unlikely(ret < 0)) - goto fail; + int ret; /* * The strncpy_from_kernel_nofault() call will likely not fill the @@ -259,11 +251,7 @@ bpf_probe_read_kernel_str_common(void *dst, u32 size, const void *unsafe_ptr) */ ret = strncpy_from_kernel_nofault(dst, unsafe_ptr, size); if (unlikely(ret < 0)) - goto fail; - - return ret; -fail: - memset(dst, 0, size); + memset(dst, 0, size); return ret; } @@ -1293,16 +1281,20 @@ bpf_tracing_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) case BPF_FUNC_probe_read_user: return &bpf_probe_read_user_proto; case BPF_FUNC_probe_read_kernel: - return &bpf_probe_read_kernel_proto; + return security_locked_down(LOCKDOWN_BPF_READ) < 0 ? + NULL : &bpf_probe_read_kernel_proto; case BPF_FUNC_probe_read_user_str: return &bpf_probe_read_user_str_proto; case BPF_FUNC_probe_read_kernel_str: - return &bpf_probe_read_kernel_str_proto; + return security_locked_down(LOCKDOWN_BPF_READ) < 0 ? + NULL : &bpf_probe_read_kernel_str_proto; #ifdef CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE case BPF_FUNC_probe_read: - return &bpf_probe_read_compat_proto; + return security_locked_down(LOCKDOWN_BPF_READ) < 0 ? + NULL : &bpf_probe_read_compat_proto; case BPF_FUNC_probe_read_str: - return &bpf_probe_read_compat_str_proto; + return security_locked_down(LOCKDOWN_BPF_READ) < 0 ? + NULL : &bpf_probe_read_compat_str_proto; #endif #ifdef CONFIG_CGROUPS case BPF_FUNC_get_current_cgroup_id: From 2a0ba0125c2c62566023882293face06046698a5 Mon Sep 17 00:00:00 2001 From: Zhen Lei Date: Sat, 8 May 2021 14:25:17 +0800 Subject: [PATCH 039/196] ieee802154: fix error return code in ieee802154_add_iface() [ Upstream commit 79c6b8ed30e54b401c873dbad2511f2a1c525fd5 ] Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: be51da0f3e34 ("ieee802154: Stop using NLA_PUT*().") Reported-by: Hulk Robot Signed-off-by: Zhen Lei Link: https://lore.kernel.org/r/20210508062517.2574-1-thunder.leizhen@huawei.com Signed-off-by: Stefan Schmidt Signed-off-by: Sasha Levin --- net/ieee802154/nl-phy.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c index 2cdc7e63fe17..88215b5c93aa 100644 --- a/net/ieee802154/nl-phy.c +++ b/net/ieee802154/nl-phy.c @@ -241,8 +241,10 @@ int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info) } if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) || - nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name)) + nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name)) { + rc = -EMSGSIZE; goto nla_put_failure; + } dev_put(dev); wpan_phy_put(phy); From e513d889625b5d8c6c2942243cd7f967455d300a Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 19 May 2021 14:16:14 +0000 Subject: [PATCH 040/196] ieee802154: fix error return code in ieee802154_llsec_getparams() [ Upstream commit 373e864cf52403b0974c2f23ca8faf9104234555 ] Fix to return negative error code -ENOBUFS from the error handling case instead of 0, as done elsewhere in this function. Fixes: 3e9c156e2c21 ("ieee802154: add netlink interfaces for llsec") Reported-by: Hulk Robot Signed-off-by: Wei Yongjun Link: https://lore.kernel.org/r/20210519141614.3040055-1-weiyongjun1@huawei.com Signed-off-by: Stefan Schmidt Signed-off-by: Sasha Levin --- net/ieee802154/nl-mac.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c index d19c40c684e8..71be75112321 100644 --- a/net/ieee802154/nl-mac.c +++ b/net/ieee802154/nl-mac.c @@ -680,8 +680,10 @@ int ieee802154_llsec_getparams(struct sk_buff *skb, struct genl_info *info) nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVEL, params.out_level) || nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER, be32_to_cpu(params.frame_counter)) || - ieee802154_llsec_fill_key_id(msg, ¶ms.out_key)) + ieee802154_llsec_fill_key_id(msg, ¶ms.out_key)) { + rc = -ENOBUFS; goto out_free; + } dev_put(dev); From e0b61cda5f07b87b07841ee15066e90b6cb2ca6e Mon Sep 17 00:00:00 2001 From: Magnus Karlsson Date: Mon, 10 May 2021 11:38:52 +0200 Subject: [PATCH 041/196] igb: add correct exception tracing for XDP [ Upstream commit 74431c40b9c5fa673fff83ec157a76a69efd5c72 ] Add missing exception tracing to XDP when a number of different errors can occur. The support was only partial. Several errors where not logged which would confuse the user quite a lot not knowing where and why the packets disappeared. Fixes: 9cbc948b5a20 ("igb: add XDP support") Reported-by: Jesper Dangaard Brouer Signed-off-by: Magnus Karlsson Tested-by: Vishakha Jambekar Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/igb/igb_main.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 368f0aac5e1d..5c87c0a7ce3d 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -8419,18 +8419,20 @@ static struct sk_buff *igb_run_xdp(struct igb_adapter *adapter, break; case XDP_TX: result = igb_xdp_xmit_back(adapter, xdp); + if (result == IGB_XDP_CONSUMED) + goto out_failure; break; case XDP_REDIRECT: err = xdp_do_redirect(adapter->netdev, xdp, xdp_prog); - if (!err) - result = IGB_XDP_REDIR; - else - result = IGB_XDP_CONSUMED; + if (err) + goto out_failure; + result = IGB_XDP_REDIR; break; default: bpf_warn_invalid_xdp_action(act); fallthrough; case XDP_ABORTED: +out_failure: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; case XDP_DROP: From 8067da904921c1de8c1cd055170ab1f5944945e3 Mon Sep 17 00:00:00 2001 From: Magnus Karlsson Date: Mon, 10 May 2021 11:38:53 +0200 Subject: [PATCH 042/196] ixgbevf: add correct exception tracing for XDP [ Upstream commit faae81420d162551b6ef2d804aafc00f4cd68e0e ] Add missing exception tracing to XDP when a number of different errors can occur. The support was only partial. Several errors where not logged which would confuse the user quite a lot not knowing where and why the packets disappeared. Fixes: 21092e9ce8b1 ("ixgbevf: Add support for XDP_TX action") Reported-by: Jesper Dangaard Brouer Signed-off-by: Magnus Karlsson Tested-by: Vishakha Jambekar Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index 82fce27f682b..a7d0a459969a 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -1072,11 +1072,14 @@ static struct sk_buff *ixgbevf_run_xdp(struct ixgbevf_adapter *adapter, case XDP_TX: xdp_ring = adapter->xdp_ring[rx_ring->queue_index]; result = ixgbevf_xmit_xdp_ring(xdp_ring, xdp); + if (result == IXGBEVF_XDP_CONSUMED) + goto out_failure; break; default: bpf_warn_invalid_xdp_action(act); fallthrough; case XDP_ABORTED: +out_failure: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; /* handle aborts by dropping packet */ case XDP_DROP: From 1dcf3d435bf6147691560b8670ff06bfaa023a69 Mon Sep 17 00:00:00 2001 From: Rahul Lakkireddy Date: Wed, 2 Jun 2021 19:38:59 +0530 Subject: [PATCH 043/196] cxgb4: fix regression with HASH tc prio value update [ Upstream commit a27fb314cba8cb84cd6456a4699c3330a83c326d ] commit db43b30cd89c ("cxgb4: add ethtool n-tuple filter deletion") has moved searching for next highest priority HASH filter rule to cxgb4_flow_rule_destroy(), which searches the rhashtable before the the rule is removed from it and hence always finds at least 1 entry. Fix by removing the rule from rhashtable first before calling cxgb4_flow_rule_destroy() and hence avoid fetching stale info. Fixes: db43b30cd89c ("cxgb4: add ethtool n-tuple filter deletion") Signed-off-by: Rahul Lakkireddy Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- .../net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c index 1b88bd1c2dbe..dd9be229819a 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c @@ -997,20 +997,16 @@ int cxgb4_tc_flower_destroy(struct net_device *dev, if (!ch_flower) return -ENOENT; + rhashtable_remove_fast(&adap->flower_tbl, &ch_flower->node, + adap->flower_ht_params); + ret = cxgb4_flow_rule_destroy(dev, ch_flower->fs.tc_prio, &ch_flower->fs, ch_flower->filter_id); if (ret) - goto err; + netdev_err(dev, "Flow rule destroy failed for tid: %u, ret: %d", + ch_flower->filter_id, ret); - ret = rhashtable_remove_fast(&adap->flower_tbl, &ch_flower->node, - adap->flower_ht_params); - if (ret) { - netdev_err(dev, "Flow remove from rhashtable failed"); - goto err; - } kfree_rcu(ch_flower, rcu); - -err: return ret; } From 09870235827451409ff546b073d754a19fd17e2e Mon Sep 17 00:00:00 2001 From: Coco Li Date: Thu, 3 Jun 2021 07:32:58 +0000 Subject: [PATCH 044/196] ipv6: Fix KASAN: slab-out-of-bounds Read in fib6_nh_flush_exceptions [ Upstream commit 821bbf79fe46a8b1d18aa456e8ed0a3c208c3754 ] Reported by syzbot: HEAD commit: 90c911ad Merge tag 'fixes' of git://git.kernel.org/pub/scm.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master dashboard link: https://syzkaller.appspot.com/bug?extid=123aa35098fd3c000eb7 compiler: Debian clang version 11.0.1-2 ================================================================== BUG: KASAN: slab-out-of-bounds in fib6_nh_get_excptn_bucket net/ipv6/route.c:1604 [inline] BUG: KASAN: slab-out-of-bounds in fib6_nh_flush_exceptions+0xbd/0x360 net/ipv6/route.c:1732 Read of size 8 at addr ffff8880145c78f8 by task syz-executor.4/17760 CPU: 0 PID: 17760 Comm: syz-executor.4 Not tainted 5.12.0-rc8-syzkaller #0 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x202/0x31e lib/dump_stack.c:120 print_address_description+0x5f/0x3b0 mm/kasan/report.c:232 __kasan_report mm/kasan/report.c:399 [inline] kasan_report+0x15c/0x200 mm/kasan/report.c:416 fib6_nh_get_excptn_bucket net/ipv6/route.c:1604 [inline] fib6_nh_flush_exceptions+0xbd/0x360 net/ipv6/route.c:1732 fib6_nh_release+0x9a/0x430 net/ipv6/route.c:3536 fib6_info_destroy_rcu+0xcb/0x1c0 net/ipv6/ip6_fib.c:174 rcu_do_batch kernel/rcu/tree.c:2559 [inline] rcu_core+0x8f6/0x1450 kernel/rcu/tree.c:2794 __do_softirq+0x372/0x7a6 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu+0x22c/0x260 kernel/softirq.c:422 irq_exit_rcu+0x5/0x20 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 RIP: 0010:lock_acquire+0x1f6/0x720 kernel/locking/lockdep.c:5515 Code: f6 84 24 a1 00 00 00 02 0f 85 8d 02 00 00 f7 c3 00 02 00 00 49 bd 00 00 00 00 00 fc ff df 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 3d 00 00 00 00 00 4b c7 44 3d 09 00 00 00 00 43 c7 44 3d RSP: 0018:ffffc90009e06560 EFLAGS: 00000206 RAX: 1ffff920013c0cc0 RBX: 0000000000000246 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90009e066e0 R08: dffffc0000000000 R09: fffffbfff1f992b1 R10: fffffbfff1f992b1 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920013c0cb4 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:267 rcu_read_lock include/linux/rcupdate.h:656 [inline] ext4_get_group_info+0xea/0x340 fs/ext4/ext4.h:3231 ext4_mb_prefetch+0x123/0x5d0 fs/ext4/mballoc.c:2212 ext4_mb_regular_allocator+0x8a5/0x28f0 fs/ext4/mballoc.c:2379 ext4_mb_new_blocks+0xc6e/0x24f0 fs/ext4/mballoc.c:4982 ext4_ext_map_blocks+0x2be3/0x7210 fs/ext4/extents.c:4238 ext4_map_blocks+0xab3/0x1cb0 fs/ext4/inode.c:638 ext4_getblk+0x187/0x6c0 fs/ext4/inode.c:848 ext4_bread+0x2a/0x1c0 fs/ext4/inode.c:900 ext4_append+0x1a4/0x360 fs/ext4/namei.c:67 ext4_init_new_dir+0x337/0xa10 fs/ext4/namei.c:2768 ext4_mkdir+0x4b8/0xc00 fs/ext4/namei.c:2814 vfs_mkdir+0x45b/0x640 fs/namei.c:3819 ovl_do_mkdir fs/overlayfs/overlayfs.h:161 [inline] ovl_mkdir_real+0x53/0x1a0 fs/overlayfs/dir.c:146 ovl_create_real+0x280/0x490 fs/overlayfs/dir.c:193 ovl_workdir_create+0x425/0x600 fs/overlayfs/super.c:788 ovl_make_workdir+0xed/0x1140 fs/overlayfs/super.c:1355 ovl_get_workdir fs/overlayfs/super.c:1492 [inline] ovl_fill_super+0x39ee/0x5370 fs/overlayfs/super.c:2035 mount_nodev+0x52/0xe0 fs/super.c:1413 legacy_get_tree+0xea/0x180 fs/fs_context.c:592 vfs_get_tree+0x86/0x270 fs/super.c:1497 do_new_mount fs/namespace.c:2903 [inline] path_mount+0x196f/0x2be0 fs/namespace.c:3233 do_mount fs/namespace.c:3246 [inline] __do_sys_mount fs/namespace.c:3454 [inline] __se_sys_mount+0x2f9/0x3b0 fs/namespace.c:3431 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f68f2b87188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 00000000200000c0 RSI: 0000000020000000 RDI: 000000000040000a RBP: 00000000004bfbb9 R08: 0000000020000100 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffe19002dff R14: 00007f68f2b87300 R15: 0000000000022000 Allocated by task 17768: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:427 [inline] ____kasan_kmalloc+0xc2/0xf0 mm/kasan/common.c:506 kasan_kmalloc include/linux/kasan.h:233 [inline] __kmalloc+0xb4/0x380 mm/slub.c:4055 kmalloc include/linux/slab.h:559 [inline] kzalloc include/linux/slab.h:684 [inline] fib6_info_alloc+0x2c/0xd0 net/ipv6/ip6_fib.c:154 ip6_route_info_create+0x55d/0x1a10 net/ipv6/route.c:3638 ip6_route_add+0x22/0x120 net/ipv6/route.c:3728 inet6_rtm_newroute+0x2cd/0x2260 net/ipv6/route.c:5352 rtnetlink_rcv_msg+0xb34/0xe70 net/core/rtnetlink.c:5553 netlink_rcv_skb+0x1f0/0x460 net/netlink/af_netlink.c:2502 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x7de/0x9b0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0xaa6/0xe90 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0x5a2/0x900 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmsg+0x319/0x400 net/socket.c:2433 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Last potentially related work creation: kasan_save_stack+0x27/0x50 mm/kasan/common.c:38 kasan_record_aux_stack+0xee/0x120 mm/kasan/generic.c:345 __call_rcu kernel/rcu/tree.c:3039 [inline] call_rcu+0x1b1/0xa30 kernel/rcu/tree.c:3114 fib6_info_release include/net/ip6_fib.h:337 [inline] ip6_route_info_create+0x10c4/0x1a10 net/ipv6/route.c:3718 ip6_route_add+0x22/0x120 net/ipv6/route.c:3728 inet6_rtm_newroute+0x2cd/0x2260 net/ipv6/route.c:5352 rtnetlink_rcv_msg+0xb34/0xe70 net/core/rtnetlink.c:5553 netlink_rcv_skb+0x1f0/0x460 net/netlink/af_netlink.c:2502 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x7de/0x9b0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0xaa6/0xe90 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0x5a2/0x900 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmsg+0x319/0x400 net/socket.c:2433 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Second to last potentially related work creation: kasan_save_stack+0x27/0x50 mm/kasan/common.c:38 kasan_record_aux_stack+0xee/0x120 mm/kasan/generic.c:345 insert_work+0x54/0x400 kernel/workqueue.c:1331 __queue_work+0x981/0xcc0 kernel/workqueue.c:1497 queue_work_on+0x111/0x200 kernel/workqueue.c:1524 queue_work include/linux/workqueue.h:507 [inline] call_usermodehelper_exec+0x283/0x470 kernel/umh.c:433 kobject_uevent_env+0x1349/0x1730 lib/kobject_uevent.c:617 kvm_uevent_notify_change+0x309/0x3b0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4809 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:877 [inline] kvm_put_kvm+0x9c/0xd10 arch/x86/kvm/../../../virt/kvm/kvm_main.c:920 kvm_vcpu_release+0x53/0x60 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3120 __fput+0x352/0x7b0 fs/file_table.c:280 task_work_run+0x146/0x1c0 kernel/task_work.c:140 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x10b/0x1e0 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x26/0x70 kernel/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff8880145c7800 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 56 bytes to the right of 192-byte region [ffff8880145c7800, ffff8880145c78c0) The buggy address belongs to the page: page:ffffea00005171c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x145c7 flags: 0xfff00000000200(slab) raw: 00fff00000000200 ffffea00006474c0 0000000200000002 ffff888010c41a00 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880145c7780: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff8880145c7800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880145c7880: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8880145c7900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880145c7980: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ================================================================== In the ip6_route_info_create function, in the case that the nh pointer is not NULL, the fib6_nh in fib6_info has not been allocated. Therefore, when trying to free fib6_info in this error case using fib6_info_release, the function will call fib6_info_destroy_rcu, which it will access fib6_nh_release(f6i->fib6_nh); However, f6i->fib6_nh doesn't have any refcount yet given the lack of allocation causing the reported memory issue above. Therefore, releasing the empty pointer directly instead would be the solution. Fixes: f88d8ea67fbdb ("ipv6: Plumb support for nexthop object in a fib6_info") Fixes: 706ec91916462 ("ipv6: Fix nexthop refcnt leak when creating ipv6 route info") Signed-off-by: Coco Li Cc: David Ahern Reviewed-by: Eric Dumazet Reviewed-by: David Ahern Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/ipv6/route.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 71e578ed8699..ccff4738313c 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -3671,11 +3671,11 @@ static struct fib6_info *ip6_route_info_create(struct fib6_config *cfg, if (nh) { if (rt->fib6_src.plen) { NL_SET_ERR_MSG(extack, "Nexthops can not be used with source routing"); - goto out; + goto out_free; } if (!nexthop_get(nh)) { NL_SET_ERR_MSG(extack, "Nexthop has been deleted"); - goto out; + goto out_free; } rt->nh = nh; fib6_nh = nexthop_fib6_nh(rt->nh); @@ -3712,6 +3712,10 @@ static struct fib6_info *ip6_route_info_create(struct fib6_config *cfg, out: fib6_info_release(rt); return ERR_PTR(err); +out_free: + ip_fib_metrics_put(rt->fib6_metrics); + kfree(rt); + return ERR_PTR(err); } int ip6_route_add(struct fib6_config *cfg, gfp_t gfp_flags, From b94580b055b8a3e90f47dc2f8c7192455306d655 Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Fri, 26 Feb 2021 13:19:20 -0800 Subject: [PATCH 045/196] ice: Fix allowing VF to request more/less queues via virtchnl [ Upstream commit f0457690af56673cb0c47af6e25430389a149225 ] Commit 12bb018c538c ("ice: Refactor VF reset") caused a regression that removes the ability for a VF to request a different amount of queues via VIRTCHNL_OP_REQUEST_QUEUES. This prevents VF drivers to either increase or decrease the number of queue pairs they are allocated. Fix this by using the variable vf->num_req_qs when determining the vf->num_vf_qs during VF VSI creation. Fixes: 12bb018c538c ("ice: Refactor VF reset") Signed-off-by: Brett Creeley Tested-by: Konrad Jankowski Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ice/ice_lib.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index e1384503dd4d..fb20c6971f4c 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -192,6 +192,8 @@ static void ice_vsi_set_num_qs(struct ice_vsi *vsi, u16 vf_id) break; case ICE_VSI_VF: vf = &pf->vf[vsi->vf_id]; + if (vf->num_req_qs) + vf->num_vf_qs = vf->num_req_qs; vsi->alloc_txq = vf->num_vf_qs; vsi->alloc_rxq = vf->num_vf_qs; /* pf->num_msix_per_vf includes (VF miscellaneous vector + From a79883ce1e9f7ccc1616c7659332db1266a9d434 Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Fri, 26 Feb 2021 13:19:21 -0800 Subject: [PATCH 046/196] ice: Fix VFR issues for AVF drivers that expect ATQLEN cleared [ Upstream commit 8679f07a9922068b9b6be81b632f52cac45d1b91 ] Some AVF drivers expect the VF_MBX_ATQLEN register to be cleared for any type of VFR/VFLR. Fix this by clearing the VF_MBX_ATQLEN register at the same time as VF_MBX_ARQLEN. Fixes: 82ba01282cf8 ("ice: clear VF ARQLEN register on reset") Signed-off-by: Brett Creeley Tested-by: Konrad Jankowski Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ice/ice_hw_autogen.h | 1 + drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c | 12 +++++++----- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h index 90abc8612a6a..406dd6bd97a7 100644 --- a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h +++ b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h @@ -31,6 +31,7 @@ #define PF_FW_ATQLEN_ATQOVFL_M BIT(29) #define PF_FW_ATQLEN_ATQCRIT_M BIT(30) #define VF_MBX_ARQLEN(_VF) (0x0022BC00 + ((_VF) * 4)) +#define VF_MBX_ATQLEN(_VF) (0x0022A800 + ((_VF) * 4)) #define PF_FW_ATQLEN_ATQENABLE_M BIT(31) #define PF_FW_ATQT 0x00080400 #define PF_MBX_ARQBAH 0x0022E400 diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index b3161c5def46..374ccce2a784 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -435,13 +435,15 @@ static void ice_trigger_vf_reset(struct ice_vf *vf, bool is_vflr, bool is_pfr) */ clear_bit(ICE_VF_STATE_INIT, vf->vf_states); - /* VF_MBX_ARQLEN is cleared by PFR, so the driver needs to clear it - * in the case of VFR. If this is done for PFR, it can mess up VF - * resets because the VF driver may already have started cleanup - * by the time we get here. + /* VF_MBX_ARQLEN and VF_MBX_ATQLEN are cleared by PFR, so the driver + * needs to clear them in the case of VFR/VFLR. If this is done for + * PFR, it can mess up VF resets because the VF driver may already + * have started cleanup by the time we get here. */ - if (!is_pfr) + if (!is_pfr) { wr32(hw, VF_MBX_ARQLEN(vf->vf_id), 0); + wr32(hw, VF_MBX_ATQLEN(vf->vf_id), 0); + } /* In the case of a VFLR, the HW has already reset the VF and we * just need to clean up, so don't hit the VFRTRIG register. From 8726b9e81be7b30d7a9f4f1e3426352b37e6129d Mon Sep 17 00:00:00 2001 From: Haiyue Wang Date: Fri, 26 Feb 2021 13:19:31 -0800 Subject: [PATCH 047/196] ice: handle the VF VSI rebuild failure [ Upstream commit c7ee6ce1cf60b7fcdbdd2354d377d00bae3fa2d2 ] VSI rebuild can be failed for LAN queue config, then the VF's VSI will be NULL, the VF reset should be stopped with the VF entering into the disable state. Fixes: 12bb018c538c ("ice: Refactor VF reset") Signed-off-by: Haiyue Wang Tested-by: Konrad Jankowski Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index 374ccce2a784..c9f82fd3cf48 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -1341,7 +1341,12 @@ bool ice_reset_vf(struct ice_vf *vf, bool is_vflr) } ice_vf_pre_vsi_rebuild(vf); - ice_vf_rebuild_vsi_with_release(vf); + + if (ice_vf_rebuild_vsi_with_release(vf)) { + dev_err(dev, "Failed to release and setup the VF%u's VSI\n", vf->vf_id); + return false; + } + ice_vf_post_vsi_rebuild(vf); return true; From 68db78345f7383dcd3ffd3c20f379f2f8e1b445f Mon Sep 17 00:00:00 2001 From: Paul Greenwalt Date: Wed, 5 May 2021 14:17:58 -0700 Subject: [PATCH 048/196] ice: report supported and advertised autoneg using PHY capabilities [ Upstream commit 5cd349c349d6ec52862e550d3576893d35ab8ac2 ] Ethtool incorrectly reported supported and advertised auto-negotiation settings for a backplane PHY image which did not support auto-negotiation. This can occur when using media or PHY type for reporting ethtool supported and advertised auto-negotiation settings. Remove setting supported and advertised auto-negotiation settings based on PHY type in ice_phy_type_to_ethtool(), and MAC type in ice_get_link_ksettings(). Ethtool supported and advertised auto-negotiation settings should be based on the PHY image using the AQ command get PHY capabilities with media. Add setting supported and advertised auto-negotiation settings based get PHY capabilities with media in ice_get_link_ksettings(). Fixes: 48cb27f2fd18 ("ice: Implement handlers for ethtool PHY/link operations") Signed-off-by: Paul Greenwalt Tested-by: Tony Brelinski Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ice/ice_ethtool.c | 51 +++----------------- 1 file changed, 6 insertions(+), 45 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index d70573f5072c..a7975afecf70 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -1797,49 +1797,6 @@ ice_phy_type_to_ethtool(struct net_device *netdev, ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB, 100000baseKR4_Full); } - - /* Autoneg PHY types */ - if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX || - phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T || - phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX || - phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T || - phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX || - phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T || - phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR || - phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T || - phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 || - phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T || - phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR || - phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S || - phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 || - phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR || - phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S || - phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1 || - phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 || - phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) { - ethtool_link_ksettings_add_link_mode(ks, supported, - Autoneg); - ethtool_link_ksettings_add_link_mode(ks, advertising, - Autoneg); - } - if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 || - phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 || - phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP || - phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) { - ethtool_link_ksettings_add_link_mode(ks, supported, - Autoneg); - ethtool_link_ksettings_add_link_mode(ks, advertising, - Autoneg); - } - if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 || - phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 || - phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 || - phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2) { - ethtool_link_ksettings_add_link_mode(ks, supported, - Autoneg); - ethtool_link_ksettings_add_link_mode(ks, advertising, - Autoneg); - } } #define TEST_SET_BITS_TIMEOUT 50 @@ -1996,9 +1953,7 @@ ice_get_link_ksettings(struct net_device *netdev, ks->base.port = PORT_TP; break; case ICE_MEDIA_BACKPLANE: - ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); - ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); ethtool_link_ksettings_add_link_mode(ks, advertising, Backplane); ks->base.port = PORT_NONE; @@ -2073,6 +2028,12 @@ ice_get_link_ksettings(struct net_device *netdev, if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN) ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); + /* Set supported and advertised autoneg */ + if (ice_is_phy_caps_an_enabled(caps)) { + ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); + ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); + } + done: kfree(caps); return err; From c4b796f20c9581ed8502e42be3d5bde59469143d Mon Sep 17 00:00:00 2001 From: Dave Ertman Date: Wed, 5 May 2021 14:17:59 -0700 Subject: [PATCH 049/196] ice: Allow all LLDP packets from PF to Tx [ Upstream commit f9f83202b7263ac371d616d6894a2c9ed79158ef ] Currently in the ice driver, the check whether to allow a LLDP packet to egress the interface from the PF_VSI is being based on the SKB's priority field. It checks to see if the packets priority is equal to TC_PRIO_CONTROL. Injected LLDP packets do not always meet this condition. SCAPY defaults to a sk_buff->protocol value of ETH_P_ALL (0x0003) and does not set the priority field. There will be other injection methods (even ones used by end users) that will not correctly configure the socket so that SKB fields are correctly populated. Then ethernet header has to have to correct value for the protocol though. Add a check to also allow packets whose ethhdr->h_proto matches ETH_P_LLDP (0x88CC). Fixes: 0c3a6101ff2d ("ice: Allow egress control packets from PF_VSI") Signed-off-by: Dave Ertman Tested-by: Tony Brelinski Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ice/ice_txrx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 0f2544c420ac..1510091a63e8 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -2373,6 +2373,7 @@ ice_xmit_frame_ring(struct sk_buff *skb, struct ice_ring *tx_ring) struct ice_tx_offload_params offload = { 0 }; struct ice_vsi *vsi = tx_ring->vsi; struct ice_tx_buf *first; + struct ethhdr *eth; unsigned int count; int tso, csum; @@ -2419,7 +2420,9 @@ ice_xmit_frame_ring(struct sk_buff *skb, struct ice_ring *tx_ring) goto out_drop; /* allow CONTROL frames egress from main VSI if FW LLDP disabled */ - if (unlikely(skb->priority == TC_PRIO_CONTROL && + eth = (struct ethhdr *)skb_mac_header(skb); + if (unlikely((skb->priority == TC_PRIO_CONTROL || + eth->h_proto == htons(ETH_P_LLDP)) && vsi->type == ICE_VSI_PF && vsi->port_info->qos_cfg.is_sw_lldp)) offload.cd_qw1 |= (u64)(ICE_TX_DESC_DTYPE_CTX | From 21d494d4446b020e69e7b22fa6ed9274db1f175c Mon Sep 17 00:00:00 2001 From: Roja Rani Yarubandi Date: Tue, 25 May 2021 18:40:50 +0530 Subject: [PATCH 050/196] i2c: qcom-geni: Add shutdown callback for i2c [ Upstream commit 9f78c607600ce4f2a952560de26534715236f612 ] If the hardware is still accessing memory after SMMU translation is disabled (as part of smmu shutdown callback), then the IOVAs (I/O virtual address) which it was using will go on the bus as the physical addresses which will result in unknown crashes like NoC/interconnect errors. So, implement shutdown callback for i2c driver to suspend the bus during system "reboot" or "shutdown". Fixes: 37692de5d523 ("i2c: i2c-qcom-geni: Add bus driver for the Qualcomm GENI I2C controller") Signed-off-by: Roja Rani Yarubandi Reviewed-by: Stephen Boyd Signed-off-by: Wolfram Sang Signed-off-by: Sasha Levin --- drivers/i2c/busses/i2c-qcom-geni.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index 4a6dd05d6dbf..899ad2c7d67d 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -654,6 +654,14 @@ static int geni_i2c_remove(struct platform_device *pdev) return 0; } +static void geni_i2c_shutdown(struct platform_device *pdev) +{ + struct geni_i2c_dev *gi2c = platform_get_drvdata(pdev); + + /* Make client i2c transfers start failing */ + i2c_mark_adapter_suspended(&gi2c->adap); +} + static int __maybe_unused geni_i2c_runtime_suspend(struct device *dev) { int ret; @@ -718,6 +726,7 @@ MODULE_DEVICE_TABLE(of, geni_i2c_dt_match); static struct platform_driver geni_i2c_driver = { .probe = geni_i2c_probe, .remove = geni_i2c_remove, + .shutdown = geni_i2c_shutdown, .driver = { .name = "geni_i2c", .pm = &geni_i2c_pm_ops, From 1958a31c035dd8981a7313acf8f91ae1886173cc Mon Sep 17 00:00:00 2001 From: Rahul Lakkireddy Date: Fri, 4 Jun 2021 16:48:18 +0530 Subject: [PATCH 051/196] cxgb4: avoid link re-train during TC-MQPRIO configuration [ Upstream commit 3822d0670c9d4342794d73e0d0e615322b40438e ] When configuring TC-MQPRIO offload, only turn off netdev carrier and don't bring physical link down in hardware. Otherwise, when the physical link is brought up again after configuration, it gets re-trained and stalls ongoing traffic. Also, when firmware is no longer accessible or crashed, avoid sending FLOWC and waiting for reply that will never come. Fix following hung_task_timeout_secs trace seen in these cases. INFO: task tc:20807 blocked for more than 122 seconds. Tainted: G S 5.13.0-rc3+ #122 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:tc state:D stack:14768 pid:20807 ppid: 19366 flags:0x00000000 Call Trace: __schedule+0x27b/0x6a0 schedule+0x37/0xa0 schedule_preempt_disabled+0x5/0x10 __mutex_lock.isra.14+0x2a0/0x4a0 ? netlink_lookup+0x120/0x1a0 ? rtnl_fill_ifinfo+0x10f0/0x10f0 __netlink_dump_start+0x70/0x250 rtnetlink_rcv_msg+0x28b/0x380 ? rtnl_fill_ifinfo+0x10f0/0x10f0 ? rtnl_calcit.isra.42+0x120/0x120 netlink_rcv_skb+0x4b/0xf0 netlink_unicast+0x1a0/0x280 netlink_sendmsg+0x216/0x440 sock_sendmsg+0x56/0x60 __sys_sendto+0xe9/0x150 ? handle_mm_fault+0x6d/0x1b0 ? do_user_addr_fault+0x1c5/0x620 __x64_sys_sendto+0x1f/0x30 do_syscall_64+0x3c/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f7f73218321 RSP: 002b:00007ffd19626208 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000055b7c0a8b240 RCX: 00007f7f73218321 RDX: 0000000000000028 RSI: 00007ffd19626210 RDI: 0000000000000003 RBP: 000055b7c08680ff R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000055b7c085f5f6 R13: 000055b7c085f60a R14: 00007ffd19636470 R15: 00007ffd196262a0 Fixes: b1396c2bd675 ("cxgb4: parse and configure TC-MQPRIO offload") Signed-off-by: Rahul Lakkireddy Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 2 -- drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 4 ++-- drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c | 9 ++++++--- drivers/net/ethernet/chelsio/cxgb4/sge.c | 6 ++++++ 4 files changed, 14 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index 27308600da15..2dd486915629 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -2177,8 +2177,6 @@ int cxgb4_update_mac_filt(struct port_info *pi, unsigned int viid, bool persistent, u8 *smt_idx); int cxgb4_get_msix_idx_from_bmap(struct adapter *adap); void cxgb4_free_msix_idx_in_bmap(struct adapter *adap, u32 msix_idx); -int cxgb_open(struct net_device *dev); -int cxgb_close(struct net_device *dev); void cxgb4_enable_rx(struct adapter *adap, struct sge_rspq *q); void cxgb4_quiesce_rx(struct sge_rspq *q); int cxgb4_port_mirror_alloc(struct net_device *dev); diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 23c13f34a572..04dcb5e4b316 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -2834,7 +2834,7 @@ static void cxgb_down(struct adapter *adapter) /* * net_device operations */ -int cxgb_open(struct net_device *dev) +static int cxgb_open(struct net_device *dev) { struct port_info *pi = netdev_priv(dev); struct adapter *adapter = pi->adapter; @@ -2882,7 +2882,7 @@ out_unlock: return err; } -int cxgb_close(struct net_device *dev) +static int cxgb_close(struct net_device *dev) { struct port_info *pi = netdev_priv(dev); struct adapter *adapter = pi->adapter; diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c index 6c259de96f96..338b04f339b3 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c @@ -589,7 +589,8 @@ int cxgb4_setup_tc_mqprio(struct net_device *dev, * down before configuring tc params. */ if (netif_running(dev)) { - cxgb_close(dev); + netif_tx_stop_all_queues(dev); + netif_carrier_off(dev); needs_bring_up = true; } @@ -615,8 +616,10 @@ int cxgb4_setup_tc_mqprio(struct net_device *dev, } out: - if (needs_bring_up) - cxgb_open(dev); + if (needs_bring_up) { + netif_tx_start_all_queues(dev); + netif_carrier_on(dev); + } mutex_unlock(&adap->tc_mqprio->mqprio_mutex); return ret; diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c index 546301272271..ccb6bd002b20 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/sge.c +++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c @@ -2552,6 +2552,12 @@ int cxgb4_ethofld_send_flowc(struct net_device *dev, u32 eotid, u32 tc) if (!eosw_txq) return -ENOMEM; + if (!(adap->flags & CXGB4_FW_OK)) { + /* Don't stall caller when access to FW is lost */ + complete(&eosw_txq->completion); + return -EIO; + } + skb = alloc_skb(len, GFP_KERNEL); if (!skb) return -ENOMEM; From fbae1a97ce342470dcf2c3f51e63faf2e8e557f0 Mon Sep 17 00:00:00 2001 From: Magnus Karlsson Date: Wed, 2 Dec 2020 16:07:22 +0100 Subject: [PATCH 052/196] i40e: optimize for XDP_REDIRECT in xsk path [ Upstream commit 346497c78d15cdd5bdc3b642a895009359e5457f ] Optimize i40e_run_xdp_zc() for the XDP program verdict being XDP_REDIRECT in the xsk zero-copy path. This path is only used when having AF_XDP zero-copy on and in that case most packets will be directed to user space. This provides a little over 100k extra packets in throughput on my server when running l2fwd in xdpsock. Signed-off-by: Magnus Karlsson Tested-by: George Kuruvinakunnel Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/i40e/i40e_xsk.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_xsk.c b/drivers/net/ethernet/intel/i40e/i40e_xsk.c index 8557807b4171..18e8d4e456d6 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c +++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c @@ -159,6 +159,13 @@ static int i40e_run_xdp_zc(struct i40e_ring *rx_ring, struct xdp_buff *xdp) xdp_prog = READ_ONCE(rx_ring->xdp_prog); act = bpf_prog_run_xdp(xdp_prog, xdp); + if (likely(act == XDP_REDIRECT)) { + err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); + result = !err ? I40E_XDP_REDIR : I40E_XDP_CONSUMED; + rcu_read_unlock(); + return result; + } + switch (act) { case XDP_PASS: break; @@ -166,10 +173,6 @@ static int i40e_run_xdp_zc(struct i40e_ring *rx_ring, struct xdp_buff *xdp) xdp_ring = rx_ring->vsi->xdp_rings[rx_ring->queue_index]; result = i40e_xmit_xdp_tx_ring(xdp, xdp_ring); break; - case XDP_REDIRECT: - err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); - result = !err ? I40E_XDP_REDIR : I40E_XDP_CONSUMED; - break; default: bpf_warn_invalid_xdp_action(act); fallthrough; From 274d6eeaafc7c40b0618c66ec9e0cdf2f51c2f4d Mon Sep 17 00:00:00 2001 From: Magnus Karlsson Date: Mon, 10 May 2021 11:38:49 +0200 Subject: [PATCH 053/196] i40e: add correct exception tracing for XDP [ Upstream commit f6c10b48f8c8da44adaff730d8e700b6272add2b ] Add missing exception tracing to XDP when a number of different errors can occur. The support was only partial. Several errors where not logged which would confuse the user quite a lot not knowing where and why the packets disappeared. Fixes: 74608d17fe29 ("i40e: add support for XDP_TX action") Fixes: 0a714186d3c0 ("i40e: add AF_XDP zero-copy Rx support") Reported-by: Jesper Dangaard Brouer Signed-off-by: Magnus Karlsson Tested-by: Kiran Bhandare Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 7 ++++++- drivers/net/ethernet/intel/i40e/i40e_xsk.c | 8 ++++++-- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 011f484606a3..c40ac82db863 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -2205,15 +2205,20 @@ static int i40e_run_xdp(struct i40e_ring *rx_ring, struct xdp_buff *xdp) case XDP_TX: xdp_ring = rx_ring->vsi->xdp_rings[rx_ring->queue_index]; result = i40e_xmit_xdp_tx_ring(xdp, xdp_ring); + if (result == I40E_XDP_CONSUMED) + goto out_failure; break; case XDP_REDIRECT: err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); - result = !err ? I40E_XDP_REDIR : I40E_XDP_CONSUMED; + if (err) + goto out_failure; + result = I40E_XDP_REDIR; break; default: bpf_warn_invalid_xdp_action(act); fallthrough; case XDP_ABORTED: +out_failure: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; /* handle aborts by dropping packet */ case XDP_DROP: diff --git a/drivers/net/ethernet/intel/i40e/i40e_xsk.c b/drivers/net/ethernet/intel/i40e/i40e_xsk.c index 18e8d4e456d6..86c79f71c685 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c +++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c @@ -161,9 +161,10 @@ static int i40e_run_xdp_zc(struct i40e_ring *rx_ring, struct xdp_buff *xdp) if (likely(act == XDP_REDIRECT)) { err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); - result = !err ? I40E_XDP_REDIR : I40E_XDP_CONSUMED; + if (err) + goto out_failure; rcu_read_unlock(); - return result; + return I40E_XDP_REDIR; } switch (act) { @@ -172,11 +173,14 @@ static int i40e_run_xdp_zc(struct i40e_ring *rx_ring, struct xdp_buff *xdp) case XDP_TX: xdp_ring = rx_ring->vsi->xdp_rings[rx_ring->queue_index]; result = i40e_xmit_xdp_tx_ring(xdp, xdp_ring); + if (result == I40E_XDP_CONSUMED) + goto out_failure; break; default: bpf_warn_invalid_xdp_action(act); fallthrough; case XDP_ABORTED: +out_failure: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; /* handle aborts by dropping packet */ case XDP_DROP: From 7bd82b73d5898a0c8d219740855c823edde5ac00 Mon Sep 17 00:00:00 2001 From: Maciej Fijalkowski Date: Mon, 18 Jan 2021 16:13:11 +0100 Subject: [PATCH 054/196] ice: simplify ice_run_xdp MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Upstream commit 59c97d1b51b119eace6b1e61a6f820701f5a8299 ] There's no need for 'result' variable, we can directly return the internal status based on action returned by xdp prog. Reviewed-by: Björn Töpel Signed-off-by: Maciej Fijalkowski Tested-by: Kiran Bhandare Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ice/ice_txrx.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 1510091a63e8..5cc2854a5d48 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -537,22 +537,20 @@ static int ice_run_xdp(struct ice_ring *rx_ring, struct xdp_buff *xdp, struct bpf_prog *xdp_prog) { - int err, result = ICE_XDP_PASS; struct ice_ring *xdp_ring; + int err; u32 act; act = bpf_prog_run_xdp(xdp_prog, xdp); switch (act) { case XDP_PASS: - break; + return ICE_XDP_PASS; case XDP_TX: xdp_ring = rx_ring->vsi->xdp_rings[smp_processor_id()]; - result = ice_xmit_xdp_buff(xdp, xdp_ring); - break; + return ice_xmit_xdp_buff(xdp, xdp_ring); case XDP_REDIRECT: err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); - result = !err ? ICE_XDP_REDIR : ICE_XDP_CONSUMED; - break; + return !err ? ICE_XDP_REDIR : ICE_XDP_CONSUMED; default: bpf_warn_invalid_xdp_action(act); fallthrough; @@ -560,11 +558,8 @@ ice_run_xdp(struct ice_ring *rx_ring, struct xdp_buff *xdp, trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; case XDP_DROP: - result = ICE_XDP_CONSUMED; - break; + return ICE_XDP_CONSUMED; } - - return result; } /** From 9e1eb428849fab331c73876be4a52bbcf884dbb0 Mon Sep 17 00:00:00 2001 From: Magnus Karlsson Date: Wed, 2 Dec 2020 16:07:24 +0100 Subject: [PATCH 055/196] ice: optimize for XDP_REDIRECT in xsk path [ Upstream commit bb52073645a618ab4d93c8d932fb8faf114c55bc ] Optimize ice_run_xdp_zc() for the XDP program verdict being XDP_REDIRECT in the xsk zero-copy path. This path is only used when having AF_XDP zero-copy on and in that case most packets will be directed to user space. This provides a little over 100k extra packets in throughput on my server when running l2fwd in xdpsock. Signed-off-by: Magnus Karlsson Tested-by: George Kuruvinakunnel Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ice/ice_xsk.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index 98101a8e2952..952148eede30 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -524,6 +524,14 @@ ice_run_xdp_zc(struct ice_ring *rx_ring, struct xdp_buff *xdp) } act = bpf_prog_run_xdp(xdp_prog, xdp); + + if (likely(act == XDP_REDIRECT)) { + err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); + result = !err ? ICE_XDP_REDIR : ICE_XDP_CONSUMED; + rcu_read_unlock(); + return result; + } + switch (act) { case XDP_PASS: break; @@ -531,10 +539,6 @@ ice_run_xdp_zc(struct ice_ring *rx_ring, struct xdp_buff *xdp) xdp_ring = rx_ring->vsi->xdp_rings[rx_ring->q_index]; result = ice_xmit_xdp_buff(xdp, xdp_ring); break; - case XDP_REDIRECT: - err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); - result = !err ? ICE_XDP_REDIR : ICE_XDP_CONSUMED; - break; default: bpf_warn_invalid_xdp_action(act); fallthrough; From ad505705bba64cf698f0fcaa26fdd644f400e57c Mon Sep 17 00:00:00 2001 From: Magnus Karlsson Date: Mon, 10 May 2021 11:38:50 +0200 Subject: [PATCH 056/196] ice: add correct exception tracing for XDP [ Upstream commit 89d65df024c59988291f643b4e45d1528c51aef9 ] Add missing exception tracing to XDP when a number of different errors can occur. The support was only partial. Several errors where not logged which would confuse the user quite a lot not knowing where and why the packets disappeared. Fixes: efc2214b6047 ("ice: Add support for XDP") Fixes: 2d4238f55697 ("ice: Add support for AF_XDP") Reported-by: Jesper Dangaard Brouer Signed-off-by: Magnus Karlsson Tested-by: Kiran Bhandare Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ice/ice_txrx.c | 12 +++++++++--- drivers/net/ethernet/intel/ice/ice_xsk.c | 8 ++++++-- 2 files changed, 15 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 5cc2854a5d48..442a9bcbf60a 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -538,7 +538,7 @@ ice_run_xdp(struct ice_ring *rx_ring, struct xdp_buff *xdp, struct bpf_prog *xdp_prog) { struct ice_ring *xdp_ring; - int err; + int err, result; u32 act; act = bpf_prog_run_xdp(xdp_prog, xdp); @@ -547,14 +547,20 @@ ice_run_xdp(struct ice_ring *rx_ring, struct xdp_buff *xdp, return ICE_XDP_PASS; case XDP_TX: xdp_ring = rx_ring->vsi->xdp_rings[smp_processor_id()]; - return ice_xmit_xdp_buff(xdp, xdp_ring); + result = ice_xmit_xdp_buff(xdp, xdp_ring); + if (result == ICE_XDP_CONSUMED) + goto out_failure; + return result; case XDP_REDIRECT: err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); - return !err ? ICE_XDP_REDIR : ICE_XDP_CONSUMED; + if (err) + goto out_failure; + return ICE_XDP_REDIR; default: bpf_warn_invalid_xdp_action(act); fallthrough; case XDP_ABORTED: +out_failure: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; case XDP_DROP: diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index 952148eede30..9f36f8d7a985 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -527,9 +527,10 @@ ice_run_xdp_zc(struct ice_ring *rx_ring, struct xdp_buff *xdp) if (likely(act == XDP_REDIRECT)) { err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); - result = !err ? ICE_XDP_REDIR : ICE_XDP_CONSUMED; + if (err) + goto out_failure; rcu_read_unlock(); - return result; + return ICE_XDP_REDIR; } switch (act) { @@ -538,11 +539,14 @@ ice_run_xdp_zc(struct ice_ring *rx_ring, struct xdp_buff *xdp) case XDP_TX: xdp_ring = rx_ring->vsi->xdp_rings[rx_ring->q_index]; result = ice_xmit_xdp_buff(xdp, xdp_ring); + if (result == ICE_XDP_CONSUMED) + goto out_failure; break; default: bpf_warn_invalid_xdp_action(act); fallthrough; case XDP_ABORTED: +out_failure: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; case XDP_DROP: From e369db6cde11b77197382d8cea36e8bc976aaac9 Mon Sep 17 00:00:00 2001 From: Magnus Karlsson Date: Wed, 2 Dec 2020 16:07:23 +0100 Subject: [PATCH 057/196] ixgbe: optimize for XDP_REDIRECT in xsk path [ Upstream commit 7d52fe2eaddfa3d7255d43c3e89ebf2748b7ea7a ] Optimize ixgbe_run_xdp_zc() for the XDP program verdict being XDP_REDIRECT in the xsk zero-copy path. This path is only used when having AF_XDP zero-copy on and in that case most packets will be directed to user space. This provides a little under 100k extra packets in throughput on my server when running l2fwd in xdpsock. Signed-off-by: Magnus Karlsson Tested-by: Vishakha Jambekar Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c index 3771857cf887..91ad5b902673 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c @@ -104,6 +104,13 @@ static int ixgbe_run_xdp_zc(struct ixgbe_adapter *adapter, xdp_prog = READ_ONCE(rx_ring->xdp_prog); act = bpf_prog_run_xdp(xdp_prog, xdp); + if (likely(act == XDP_REDIRECT)) { + err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); + result = !err ? IXGBE_XDP_REDIR : IXGBE_XDP_CONSUMED; + rcu_read_unlock(); + return result; + } + switch (act) { case XDP_PASS: break; @@ -115,10 +122,6 @@ static int ixgbe_run_xdp_zc(struct ixgbe_adapter *adapter, } result = ixgbe_xmit_xdp_ring(adapter, xdpf); break; - case XDP_REDIRECT: - err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); - result = !err ? IXGBE_XDP_REDIR : IXGBE_XDP_CONSUMED; - break; default: bpf_warn_invalid_xdp_action(act); fallthrough; From a1bf16616d8351a2e79400d6d19608befb2ce1dd Mon Sep 17 00:00:00 2001 From: Magnus Karlsson Date: Mon, 10 May 2021 11:38:51 +0200 Subject: [PATCH 058/196] ixgbe: add correct exception tracing for XDP [ Upstream commit 8281356b1cab1cccc71412eb4cf28b99d6bb2c19 ] Add missing exception tracing to XDP when a number of different errors can occur. The support was only partial. Several errors where not logged which would confuse the user quite a lot not knowing where and why the packets disappeared. Fixes: 33fdc82f0883 ("ixgbe: add support for XDP_TX action") Fixes: d0bcacd0a130 ("ixgbe: add AF_XDP zero-copy Rx support") Reported-by: Jesper Dangaard Brouer Signed-off-by: Magnus Karlsson Tested-by: Vishakha Jambekar Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 16 ++++++++-------- drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 14 ++++++++------ 2 files changed, 16 insertions(+), 14 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 0b9fddbc5db4..1bfba87f1ff6 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -2218,23 +2218,23 @@ static struct sk_buff *ixgbe_run_xdp(struct ixgbe_adapter *adapter, break; case XDP_TX: xdpf = xdp_convert_buff_to_frame(xdp); - if (unlikely(!xdpf)) { - result = IXGBE_XDP_CONSUMED; - break; - } + if (unlikely(!xdpf)) + goto out_failure; result = ixgbe_xmit_xdp_ring(adapter, xdpf); + if (result == IXGBE_XDP_CONSUMED) + goto out_failure; break; case XDP_REDIRECT: err = xdp_do_redirect(adapter->netdev, xdp, xdp_prog); - if (!err) - result = IXGBE_XDP_REDIR; - else - result = IXGBE_XDP_CONSUMED; + if (err) + goto out_failure; + result = IXGBE_XDP_REDIR; break; default: bpf_warn_invalid_xdp_action(act); fallthrough; case XDP_ABORTED: +out_failure: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; /* handle aborts by dropping packet */ case XDP_DROP: diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c index 91ad5b902673..f72d2978263b 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c @@ -106,9 +106,10 @@ static int ixgbe_run_xdp_zc(struct ixgbe_adapter *adapter, if (likely(act == XDP_REDIRECT)) { err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); - result = !err ? IXGBE_XDP_REDIR : IXGBE_XDP_CONSUMED; + if (err) + goto out_failure; rcu_read_unlock(); - return result; + return IXGBE_XDP_REDIR; } switch (act) { @@ -116,16 +117,17 @@ static int ixgbe_run_xdp_zc(struct ixgbe_adapter *adapter, break; case XDP_TX: xdpf = xdp_convert_buff_to_frame(xdp); - if (unlikely(!xdpf)) { - result = IXGBE_XDP_CONSUMED; - break; - } + if (unlikely(!xdpf)) + goto out_failure; result = ixgbe_xmit_xdp_ring(adapter, xdpf); + if (result == IXGBE_XDP_CONSUMED) + goto out_failure; break; default: bpf_warn_invalid_xdp_action(act); fallthrough; case XDP_ABORTED: +out_failure: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; /* handle aborts by dropping packet */ case XDP_DROP: From d866a6e61a4de0eb13973eb8a85c780323876711 Mon Sep 17 00:00:00 2001 From: Vignesh Raghavendra Date: Mon, 10 May 2021 23:36:01 +0530 Subject: [PATCH 059/196] arm64: dts: ti: j7200-main: Mark Main NAVSS as dma-coherent [ Upstream commit 52ae30f55a2a40cff549fac95de82f25403bd387 ] Traffic through main NAVSS interconnect is coherent wrt ARM caches on J7200 SoC. Add missing dma-coherent property to main_navss node. Also add dma-ranges to be consistent with mcu_navss node and with AM65/J721e main_navss and mcu_navss nodes. Fixes: d361ed88455fe ("arm64: dts: ti: Add support for J7200 SoC") Signed-off-by: Vignesh Raghavendra Reviewed-by: Peter Ujfalusi Signed-off-by: Nishanth Menon Link: https://lore.kernel.org/r/20210510180601.19458-1-vigneshr@ti.com Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi index 72d6496e88dd..689538244392 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi @@ -78,6 +78,8 @@ #size-cells = <2>; ranges = <0x00 0x30000000 0x00 0x30000000 0x00 0x0c400000>; ti,sci-dev-id = <199>; + dma-coherent; + dma-ranges; main_navss_intr: interrupt-controller1 { compatible = "ti,sci-intr"; From 426ba49ec50b5f1c8c10fdef095b5718b673d121 Mon Sep 17 00:00:00 2001 From: Jens Wiklander Date: Mon, 19 Apr 2021 18:46:30 +0200 Subject: [PATCH 060/196] optee: use export_uuid() to copy client UUID [ Upstream commit 673c7aa2436bfc857b92417f3e590a297c586dde ] Prior to this patch optee_open_session() was making assumptions about the internal format of uuid_t by casting a memory location in a parameter struct to uuid_t *. Fix this using export_uuid() to get a well defined binary representation and also add an octets field in struct optee_msg_param in order to avoid casting. Fixes: c5b4312bea5d ("tee: optee: Add support for session login client UUID generation") Suggested-by: Andy Shevchenko Signed-off-by: Jens Wiklander Signed-off-by: Sasha Levin --- drivers/tee/optee/call.c | 6 ++++-- drivers/tee/optee/optee_msg.h | 6 ++++-- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/tee/optee/call.c b/drivers/tee/optee/call.c index 780d7c4fd756..0790de29f0ca 100644 --- a/drivers/tee/optee/call.c +++ b/drivers/tee/optee/call.c @@ -217,6 +217,7 @@ int optee_open_session(struct tee_context *ctx, struct optee_msg_arg *msg_arg; phys_addr_t msg_parg; struct optee_session *sess = NULL; + uuid_t client_uuid; /* +2 for the meta parameters added below */ shm = get_msg_arg(ctx, arg->num_params + 2, &msg_arg, &msg_parg); @@ -237,10 +238,11 @@ int optee_open_session(struct tee_context *ctx, memcpy(&msg_arg->params[0].u.value, arg->uuid, sizeof(arg->uuid)); msg_arg->params[1].u.value.c = arg->clnt_login; - rc = tee_session_calc_client_uuid((uuid_t *)&msg_arg->params[1].u.value, - arg->clnt_login, arg->clnt_uuid); + rc = tee_session_calc_client_uuid(&client_uuid, arg->clnt_login, + arg->clnt_uuid); if (rc) goto out; + export_uuid(msg_arg->params[1].u.octets, &client_uuid); rc = optee_to_msg_param(msg_arg->params + 2, arg->num_params, param); if (rc) diff --git a/drivers/tee/optee/optee_msg.h b/drivers/tee/optee/optee_msg.h index 7b2d919da2ac..c7ac7d02d6cc 100644 --- a/drivers/tee/optee/optee_msg.h +++ b/drivers/tee/optee/optee_msg.h @@ -9,7 +9,7 @@ #include /* - * This file defines the OP-TEE message protocol used to communicate + * This file defines the OP-TEE message protocol (ABI) used to communicate * with an instance of OP-TEE running in secure world. * * This file is divided into three sections. @@ -146,9 +146,10 @@ struct optee_msg_param_value { * @tmem: parameter by temporary memory reference * @rmem: parameter by registered memory reference * @value: parameter by opaque value + * @octets: parameter by octet string * * @attr & OPTEE_MSG_ATTR_TYPE_MASK indicates if tmem, rmem or value is used in - * the union. OPTEE_MSG_ATTR_TYPE_VALUE_* indicates value, + * the union. OPTEE_MSG_ATTR_TYPE_VALUE_* indicates value or octets, * OPTEE_MSG_ATTR_TYPE_TMEM_* indicates @tmem and * OPTEE_MSG_ATTR_TYPE_RMEM_* indicates @rmem, * OPTEE_MSG_ATTR_TYPE_NONE indicates that none of the members are used. @@ -159,6 +160,7 @@ struct optee_msg_param { struct optee_msg_param_tmem tmem; struct optee_msg_param_rmem rmem; struct optee_msg_param_value value; + u8 octets[24]; } u; }; From d551b8e857775a6ea48f365d9611fe5c470008a3 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Tue, 18 May 2021 09:47:23 +0300 Subject: [PATCH 061/196] bus: ti-sysc: Fix am335x resume hang for usb otg module [ Upstream commit 4d7b324e231366ea772ab10df46be31273ca39af ] On am335x, suspend and resume only works once, and the system hangs if suspend is attempted again. However, turns out suspend and resume works fine multiple times if the USB OTG driver for musb controller is loaded. The issue is caused my the interconnect target module losing context during suspend, and it needs a restore on resume to be reconfigure again as debugged earlier by Dave Gerlach . There are also other modules that need a restore on resume, like gpmc as noted by Dave. So let's add a common way to restore an interconnect target module based on a quirk flag. For now, let's enable the quirk for am335x otg only to fix the suspend and resume issue. As gpmc is not causing hangs based on tests with BeagleBone, let's patch gpmc separately. For gpmc, we also need a hardware reset done before restore according to Dave. To reinit the modules, we decouple system suspend from PM runtime. We replace calls to pm_runtime_force_suspend() and pm_runtime_force_resume() with direct calls to internal functions and rely on the driver internal state. There no point trying to handle complex system suspend and resume quirks via PM runtime. This is issue should have already been noticed with commit 1819ef2e2d12 ("bus: ti-sysc: Use swsup quirks also for am335x musb") when quirk handling was added for am335x otg for swsup. But the issue went unnoticed as having musb driver loaded hides the issue, and suspend and resume works once without the driver loaded. Fixes: 1819ef2e2d12 ("bus: ti-sysc: Use swsup quirks also for am335x musb") Suggested-by: Dave Gerlach Signed-off-by: Tony Lindgren Signed-off-by: Sasha Levin --- drivers/bus/ti-sysc.c | 53 +++++++++++++++++++++++++-- include/linux/platform_data/ti-sysc.h | 1 + 2 files changed, 51 insertions(+), 3 deletions(-) diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index 9afbe4992a1d..b7f8c6074a15 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -1330,6 +1330,34 @@ err_allow_idle: return error; } +static int sysc_reinit_module(struct sysc *ddata, bool leave_enabled) +{ + struct device *dev = ddata->dev; + int error; + + /* Disable target module if it is enabled */ + if (ddata->enabled) { + error = sysc_runtime_suspend(dev); + if (error) + dev_warn(dev, "reinit suspend failed: %i\n", error); + } + + /* Enable target module */ + error = sysc_runtime_resume(dev); + if (error) + dev_warn(dev, "reinit resume failed: %i\n", error); + + if (leave_enabled) + return error; + + /* Disable target module if no leave_enabled was set */ + error = sysc_runtime_suspend(dev); + if (error) + dev_warn(dev, "reinit suspend failed: %i\n", error); + + return error; +} + static int __maybe_unused sysc_noirq_suspend(struct device *dev) { struct sysc *ddata; @@ -1340,12 +1368,18 @@ static int __maybe_unused sysc_noirq_suspend(struct device *dev) (SYSC_QUIRK_LEGACY_IDLE | SYSC_QUIRK_NO_IDLE)) return 0; - return pm_runtime_force_suspend(dev); + if (!ddata->enabled) + return 0; + + ddata->needs_resume = 1; + + return sysc_runtime_suspend(dev); } static int __maybe_unused sysc_noirq_resume(struct device *dev) { struct sysc *ddata; + int error = 0; ddata = dev_get_drvdata(dev); @@ -1353,7 +1387,19 @@ static int __maybe_unused sysc_noirq_resume(struct device *dev) (SYSC_QUIRK_LEGACY_IDLE | SYSC_QUIRK_NO_IDLE)) return 0; - return pm_runtime_force_resume(dev); + if (ddata->cfg.quirks & SYSC_QUIRK_REINIT_ON_RESUME) { + error = sysc_reinit_module(ddata, ddata->needs_resume); + if (error) + dev_warn(dev, "noirq_resume failed: %i\n", error); + } else if (ddata->needs_resume) { + error = sysc_runtime_resume(dev); + if (error) + dev_warn(dev, "noirq_resume failed: %i\n", error); + } + + ddata->needs_resume = 0; + + return error; } static const struct dev_pm_ops sysc_pm_ops = { @@ -1462,7 +1508,8 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { SYSC_QUIRK("usb_otg_hs", 0, 0x400, 0x404, 0x408, 0x00000050, 0xffffffff, SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_SWSUP_MSTANDBY), SYSC_QUIRK("usb_otg_hs", 0, 0, 0x10, -ENODEV, 0x4ea2080d, 0xffffffff, - SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_SWSUP_MSTANDBY), + SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_SWSUP_MSTANDBY | + SYSC_QUIRK_REINIT_ON_RESUME), SYSC_QUIRK("wdt", 0, 0, 0x10, 0x14, 0x502a0500, 0xfffff0f0, SYSC_MODULE_QUIRK_WDT), /* PRUSS on am3, am4 and am5 */ diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h index fafc1beea504..9837fb011f2f 100644 --- a/include/linux/platform_data/ti-sysc.h +++ b/include/linux/platform_data/ti-sysc.h @@ -50,6 +50,7 @@ struct sysc_regbits { s8 emufree_shift; }; +#define SYSC_QUIRK_REINIT_ON_RESUME BIT(27) #define SYSC_QUIRK_GPMC_DEBUG BIT(26) #define SYSC_MODULE_QUIRK_ENA_RESETDONE BIT(25) #define SYSC_MODULE_QUIRK_PRUSS BIT(24) From a3716c19330de0f04292ff8dc3eb9af0f1b87164 Mon Sep 17 00:00:00 2001 From: Michael Walle Date: Thu, 8 Apr 2021 13:02:18 +0200 Subject: [PATCH 062/196] arm64: dts: ls1028a: fix memory node [ Upstream commit dabea675faf16e8682aa478ff3ce65dd775620bc ] While enabling EDAC support for the LS1028A it was discovered that the memory node has a wrong endianness setting as well as a wrong interrupt assignment. Fix both. This was tested on a sl28 board. To force ECC errors, you can use the error injection supported by the controller in hardware (with CONFIG_EDAC_DEBUG enabled): # enable error injection $ echo 0x100 > /sys/devices/system/edac/mc/mc0/inject_ctrl # flip lowest bit of the data $ echo 0x1 > /sys/devices/system/edac/mc/mc0/inject_data_lo Fixes: 8897f3255c9c ("arm64: dts: Add support for NXP LS1028A SoC") Signed-off-by: Michael Walle Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi index 62f4dcb96e70..f3b58bb9b840 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi @@ -192,8 +192,8 @@ ddr: memory-controller@1080000 { compatible = "fsl,qoriq-memory-controller"; reg = <0x0 0x1080000 0x0 0x1000>; - interrupts = ; - big-endian; + interrupts = ; + little-endian; }; dcfg: syscon@1e00000 { From 4f323ce68e75b5fc8d34e408f7033f2a1477ca59 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Fri, 7 May 2021 21:44:40 +0200 Subject: [PATCH 063/196] arm64: dts: zii-ultra: fix 12V_MAIN voltage [ Upstream commit ac0cbf9d13dccfd09bebc2f8f5697b6d3ffe27c4 ] As this is a fixed regulator on the board there was no harm in the wrong voltage being specified, apart from a confusing reporting to userspace. Fixes: 4a13b3bec3b4 ("arm64: dts: imx: add Zii Ultra board support") Signed-off-by: Lucas Stach Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi index fa7a041ffcfd..825c83c71a9f 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi @@ -45,8 +45,8 @@ reg_12p0_main: regulator-12p0-main { compatible = "regulator-fixed"; regulator-name = "12V_MAIN"; - regulator-min-microvolt = <5000000>; - regulator-max-microvolt = <5000000>; + regulator-min-microvolt = <12000000>; + regulator-max-microvolt = <12000000>; regulator-always-on; }; From 8aa4700de52d2ed132bfedc747e59f306c1071a6 Mon Sep 17 00:00:00 2001 From: Michael Walle Date: Fri, 14 May 2021 20:55:52 +0200 Subject: [PATCH 064/196] arm64: dts: freescale: sl28: var4: fix RGMII clock and voltage [ Upstream commit 25201269c6ec3e9398426962ccdd55428261f7d0 ] During hardware validation it was noticed that the clock isn't continuously enabled when there is no link. This is because the 125MHz clock is derived from the internal PLL which seems to go into some kind of power-down mode every once in a while. The LS1028A expects a contiuous clock. Thus enable the PLL all the time. Also, the RGMII pad voltage is wrong. It was configured to 2.5V (that is the VDDH regulator). The correct voltage is 1.8V, i.e. the VDDIO regulator. This fix is for the freescale/fsl-ls1028a-kontron-sl28-var4.dts. Fixes: 815364d0424e ("arm64: dts: freescale: add Kontron sl28 support") Signed-off-by: Michael Walle Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- .../boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts index df212ed5bb94..e65d1c477e2c 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts @@ -31,11 +31,10 @@ reg = <0x4>; eee-broken-1000t; eee-broken-100tx; - qca,clk-out-frequency = <125000000>; qca,clk-out-strength = ; - - vddio-supply = <&vddh>; + qca,keep-pll-enabled; + vddio-supply = <&vddio>; vddio: vddio-regulator { regulator-name = "VDDIO"; From a776ea1eca2b7c69d6c036e27a4e78a41bd35517 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 20 May 2021 18:42:12 -0300 Subject: [PATCH 065/196] ARM: dts: imx7d-meerkat96: Fix the 'tuning-step' property [ Upstream commit 7c8f0338cdacc90fdf6468adafa8e27952987f00 ] According to Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml, the correct name of the property is 'fsl,tuning-step'. Fix it accordingly. Signed-off-by: Fabio Estevam Fixes: ae7b3384b61b ("ARM: dts: Add support for 96Boards Meerkat96 board") Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm/boot/dts/imx7d-meerkat96.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx7d-meerkat96.dts b/arch/arm/boot/dts/imx7d-meerkat96.dts index 5339210b63d0..dd8003bd1fc0 100644 --- a/arch/arm/boot/dts/imx7d-meerkat96.dts +++ b/arch/arm/boot/dts/imx7d-meerkat96.dts @@ -193,7 +193,7 @@ pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usdhc1>; keep-power-in-suspend; - tuning-step = <2>; + fsl,tuning-step = <2>; vmmc-supply = <®_3p3v>; no-1-8-v; broken-cd; From 67ae12a57b342e6dc5de6fae3fb7cda493abc257 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 20 May 2021 18:42:13 -0300 Subject: [PATCH 066/196] ARM: dts: imx7d-pico: Fix the 'tuning-step' property [ Upstream commit 0e2fa4959c4f44815ce33e46e4054eeb0f346053 ] According to Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml, the correct name of the property is 'fsl,tuning-step'. Fix it accordingly. Signed-off-by: Fabio Estevam Fixes: f13f571ac8a1 ("ARM: dts: imx7d-pico: Extend peripherals support") Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm/boot/dts/imx7d-pico.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx7d-pico.dtsi b/arch/arm/boot/dts/imx7d-pico.dtsi index e57da0d32b98..e519897fae08 100644 --- a/arch/arm/boot/dts/imx7d-pico.dtsi +++ b/arch/arm/boot/dts/imx7d-pico.dtsi @@ -351,7 +351,7 @@ pinctrl-2 = <&pinctrl_usdhc1_200mhz>; cd-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>; bus-width = <4>; - tuning-step = <2>; + fsl,tuning-step = <2>; vmmc-supply = <®_3p3v>; wakeup-source; no-1-8-v; From 5592731e13cc0bdc81ffd839359ce43f5c5e211e Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 21 May 2021 09:54:07 +0200 Subject: [PATCH 067/196] ARM: dts: imx: emcon-avari: Fix nxp,pca8574 #gpio-cells [ Upstream commit b73eb6b3b91ff7d76cff5f8c7ab92fe0c51e3829 ] According to the DT bindings, #gpio-cells must be two. Fixes: 63e71fedc07c4ece ("ARM: dts: Add support for emtrion emCON-MX6 series") Signed-off-by: Geert Uytterhoeven Reviewed-by: Laurent Pinchart Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm/boot/dts/imx6qdl-emcon-avari.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6qdl-emcon-avari.dtsi b/arch/arm/boot/dts/imx6qdl-emcon-avari.dtsi index 828cf3e39784..c4e146f3341b 100644 --- a/arch/arm/boot/dts/imx6qdl-emcon-avari.dtsi +++ b/arch/arm/boot/dts/imx6qdl-emcon-avari.dtsi @@ -126,7 +126,7 @@ compatible = "nxp,pca8574"; reg = <0x3a>; gpio-controller; - #gpio-cells = <1>; + #gpio-cells = <2>; }; }; From 0d83aec6e0102e014eafdd453bdbc61b4d193029 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Tue, 25 May 2021 09:08:23 +0300 Subject: [PATCH 068/196] bus: ti-sysc: Fix flakey idling of uarts and stop using swsup_sidle_act [ Upstream commit c8692ad416dcc420ce1b403596a425c8f4c2720b ] Looks like the swsup_sidle_act quirk handling is unreliable for serial ports. The serial ports just eventually stop idling until woken up and re-idled again. As the serial port not idling blocks any deeper SoC idle states, it's adds an annoying random flakeyness for power management. Let's just switch to swsup_sidle quirk instead like we already do for omap3 uarts. This means we manually idle the port instead of trying to use the hardware autoidle features when not in use. For more details on why the serial ports have been using swsup_idle_act, see commit 66dde54e978a ("ARM: OMAP2+: hwmod-data: UART IP needs software control to manage sidle modes"). It seems that the swsup_idle_act quirk handling is not enough though, and for example the TI Android kernel changed to using swsup_sidle with commit 77c34c84e1e0 ("OMAP4: HWMOD: UART1: disable smart-idle."). Fixes: b4a9a7a38917 ("bus: ti-sysc: Handle swsup idle mode quirks") Cc: Carl Philipp Klemm Cc: Ivan Jelincic Cc: Merlijn Wajer Cc: Pavel Machek Cc: Sebastian Reichel Cc: Sicelo A. Mhlongo Signed-off-by: Tony Lindgren Signed-off-by: Sasha Levin --- drivers/bus/ti-sysc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index b7f8c6074a15..818dc7f54f03 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -1450,9 +1450,9 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE), /* Uarts on omap4 and later */ SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x50411e03, 0xffff00ff, - SYSC_QUIRK_SWSUP_SIDLE_ACT | SYSC_QUIRK_LEGACY_IDLE), + SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE), SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x47422e03, 0xffffffff, - SYSC_QUIRK_SWSUP_SIDLE_ACT | SYSC_QUIRK_LEGACY_IDLE), + SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE), /* Quirks that need to be set based on the module address */ SYSC_QUIRK("mcpdm", 0x40132000, 0, 0x10, -ENODEV, 0x50000800, 0xffffffff, From e31ae45ed1d323b4409c3575299f6c203f0b3d2a Mon Sep 17 00:00:00 2001 From: Hoang Le Date: Thu, 25 Mar 2021 08:56:41 +0700 Subject: [PATCH 069/196] tipc: add extack messages for bearer/media failure [ Upstream commit b83e214b2e04204f1fc674574362061492c37245 ] Add extack error messages for -EINVAL errors when enabling bearer, getting/setting properties for a media/bearer Acked-by: Jon Maloy Signed-off-by: Hoang Le Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/tipc/bearer.c | 50 +++++++++++++++++++++++++++++++++++++---------- 1 file changed, 40 insertions(+), 10 deletions(-) diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 650414110452..4d0e11623e5c 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -234,7 +234,8 @@ void tipc_bearer_remove_dest(struct net *net, u32 bearer_id, u32 dest) */ static int tipc_enable_bearer(struct net *net, const char *name, u32 disc_domain, u32 prio, - struct nlattr *attr[]) + struct nlattr *attr[], + struct netlink_ext_ack *extack) { struct tipc_net *tn = tipc_net(net); struct tipc_bearer_names b_names; @@ -248,17 +249,20 @@ static int tipc_enable_bearer(struct net *net, const char *name, if (!bearer_name_validate(name, &b_names)) { errstr = "illegal name"; + NL_SET_ERR_MSG(extack, "Illegal name"); goto rejected; } if (prio > TIPC_MAX_LINK_PRI && prio != TIPC_MEDIA_LINK_PRI) { errstr = "illegal priority"; + NL_SET_ERR_MSG(extack, "Illegal priority"); goto rejected; } m = tipc_media_find(b_names.media_name); if (!m) { errstr = "media not registered"; + NL_SET_ERR_MSG(extack, "Media not registered"); goto rejected; } @@ -272,6 +276,7 @@ static int tipc_enable_bearer(struct net *net, const char *name, break; if (!strcmp(name, b->name)) { errstr = "already enabled"; + NL_SET_ERR_MSG(extack, "Already enabled"); goto rejected; } bearer_id++; @@ -283,6 +288,7 @@ static int tipc_enable_bearer(struct net *net, const char *name, name, prio); if (prio == TIPC_MIN_LINK_PRI) { errstr = "cannot adjust to lower"; + NL_SET_ERR_MSG(extack, "Cannot adjust to lower"); goto rejected; } pr_warn("Bearer <%s>: trying with adjusted priority\n", name); @@ -293,6 +299,7 @@ static int tipc_enable_bearer(struct net *net, const char *name, if (bearer_id >= MAX_BEARERS) { errstr = "max 3 bearers permitted"; + NL_SET_ERR_MSG(extack, "Max 3 bearers permitted"); goto rejected; } @@ -306,6 +313,7 @@ static int tipc_enable_bearer(struct net *net, const char *name, if (res) { kfree(b); errstr = "failed to enable media"; + NL_SET_ERR_MSG(extack, "Failed to enable media"); goto rejected; } @@ -322,6 +330,7 @@ static int tipc_enable_bearer(struct net *net, const char *name, if (res) { bearer_disable(net, b); errstr = "failed to create discoverer"; + NL_SET_ERR_MSG(extack, "Failed to create discoverer"); goto rejected; } @@ -894,6 +903,7 @@ int tipc_nl_bearer_get(struct sk_buff *skb, struct genl_info *info) bearer = tipc_bearer_find(net, name); if (!bearer) { err = -EINVAL; + NL_SET_ERR_MSG(info->extack, "Bearer not found"); goto err_out; } @@ -933,8 +943,10 @@ int __tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info) name = nla_data(attrs[TIPC_NLA_BEARER_NAME]); bearer = tipc_bearer_find(net, name); - if (!bearer) + if (!bearer) { + NL_SET_ERR_MSG(info->extack, "Bearer not found"); return -EINVAL; + } bearer_disable(net, bearer); @@ -992,7 +1004,8 @@ int __tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info) prio = nla_get_u32(props[TIPC_NLA_PROP_PRIO]); } - return tipc_enable_bearer(net, bearer, domain, prio, attrs); + return tipc_enable_bearer(net, bearer, domain, prio, attrs, + info->extack); } int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info) @@ -1031,6 +1044,7 @@ int tipc_nl_bearer_add(struct sk_buff *skb, struct genl_info *info) b = tipc_bearer_find(net, name); if (!b) { rtnl_unlock(); + NL_SET_ERR_MSG(info->extack, "Bearer not found"); return -EINVAL; } @@ -1071,8 +1085,10 @@ int __tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info) name = nla_data(attrs[TIPC_NLA_BEARER_NAME]); b = tipc_bearer_find(net, name); - if (!b) + if (!b) { + NL_SET_ERR_MSG(info->extack, "Bearer not found"); return -EINVAL; + } if (attrs[TIPC_NLA_BEARER_PROP]) { struct nlattr *props[TIPC_NLA_PROP_MAX + 1]; @@ -1091,12 +1107,18 @@ int __tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info) if (props[TIPC_NLA_PROP_WIN]) b->max_win = nla_get_u32(props[TIPC_NLA_PROP_WIN]); if (props[TIPC_NLA_PROP_MTU]) { - if (b->media->type_id != TIPC_MEDIA_TYPE_UDP) + if (b->media->type_id != TIPC_MEDIA_TYPE_UDP) { + NL_SET_ERR_MSG(info->extack, + "MTU property is unsupported"); return -EINVAL; + } #ifdef CONFIG_TIPC_MEDIA_UDP if (tipc_udp_mtu_bad(nla_get_u32 - (props[TIPC_NLA_PROP_MTU]))) + (props[TIPC_NLA_PROP_MTU]))) { + NL_SET_ERR_MSG(info->extack, + "MTU value is out-of-range"); return -EINVAL; + } b->mtu = nla_get_u32(props[TIPC_NLA_PROP_MTU]); tipc_node_apply_property(net, b, TIPC_NLA_PROP_MTU); #endif @@ -1224,6 +1246,7 @@ int tipc_nl_media_get(struct sk_buff *skb, struct genl_info *info) rtnl_lock(); media = tipc_media_find(name); if (!media) { + NL_SET_ERR_MSG(info->extack, "Media not found"); err = -EINVAL; goto err_out; } @@ -1260,9 +1283,10 @@ int __tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info) name = nla_data(attrs[TIPC_NLA_MEDIA_NAME]); m = tipc_media_find(name); - if (!m) + if (!m) { + NL_SET_ERR_MSG(info->extack, "Media not found"); return -EINVAL; - + } if (attrs[TIPC_NLA_MEDIA_PROP]) { struct nlattr *props[TIPC_NLA_PROP_MAX + 1]; @@ -1278,12 +1302,18 @@ int __tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info) if (props[TIPC_NLA_PROP_WIN]) m->max_win = nla_get_u32(props[TIPC_NLA_PROP_WIN]); if (props[TIPC_NLA_PROP_MTU]) { - if (m->type_id != TIPC_MEDIA_TYPE_UDP) + if (m->type_id != TIPC_MEDIA_TYPE_UDP) { + NL_SET_ERR_MSG(info->extack, + "MTU property is unsupported"); return -EINVAL; + } #ifdef CONFIG_TIPC_MEDIA_UDP if (tipc_udp_mtu_bad(nla_get_u32 - (props[TIPC_NLA_PROP_MTU]))) + (props[TIPC_NLA_PROP_MTU]))) { + NL_SET_ERR_MSG(info->extack, + "MTU value is out-of-range"); return -EINVAL; + } m->mtu = nla_get_u32(props[TIPC_NLA_PROP_MTU]); #endif } From fdf1e5eec3eddef6255cbc149e85877c924458d8 Mon Sep 17 00:00:00 2001 From: Hoang Le Date: Thu, 1 Apr 2021 09:30:48 +0700 Subject: [PATCH 070/196] tipc: fix unique bearer names sanity check [ Upstream commit f20a46c3044c3f75232b3d0e2d09af9b25efaf45 ] When enabling a bearer by name, we don't sanity check its name with higher slot in bearer list. This may have the effect that the name of an already enabled bearer bypasses the check. To fix the above issue, we just perform an extra checking with all existing bearers. Fixes: cb30a63384bc9 ("tipc: refactor function tipc_enable_bearer()") Cc: stable@vger.kernel.org Acked-by: Jon Maloy Signed-off-by: Hoang Le Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/tipc/bearer.c | 46 +++++++++++++++++++++++++++------------------- 1 file changed, 27 insertions(+), 19 deletions(-) diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 4d0e11623e5c..12e535b43d88 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -246,6 +246,7 @@ static int tipc_enable_bearer(struct net *net, const char *name, int bearer_id = 0; int res = -EINVAL; char *errstr = ""; + u32 i; if (!bearer_name_validate(name, &b_names)) { errstr = "illegal name"; @@ -270,31 +271,38 @@ static int tipc_enable_bearer(struct net *net, const char *name, prio = m->priority; /* Check new bearer vs existing ones and find free bearer id if any */ - while (bearer_id < MAX_BEARERS) { - b = rtnl_dereference(tn->bearer_list[bearer_id]); - if (!b) - break; + bearer_id = MAX_BEARERS; + i = MAX_BEARERS; + while (i-- != 0) { + b = rtnl_dereference(tn->bearer_list[i]); + if (!b) { + bearer_id = i; + continue; + } if (!strcmp(name, b->name)) { errstr = "already enabled"; NL_SET_ERR_MSG(extack, "Already enabled"); goto rejected; } - bearer_id++; - if (b->priority != prio) - continue; - if (++with_this_prio <= 2) - continue; - pr_warn("Bearer <%s>: already 2 bearers with priority %u\n", - name, prio); - if (prio == TIPC_MIN_LINK_PRI) { - errstr = "cannot adjust to lower"; - NL_SET_ERR_MSG(extack, "Cannot adjust to lower"); - goto rejected; + + if (b->priority == prio && + (++with_this_prio > 2)) { + pr_warn("Bearer <%s>: already 2 bearers with priority %u\n", + name, prio); + + if (prio == TIPC_MIN_LINK_PRI) { + errstr = "cannot adjust to lower"; + NL_SET_ERR_MSG(extack, "Cannot adjust to lower"); + goto rejected; + } + + pr_warn("Bearer <%s>: trying with adjusted priority\n", + name); + prio--; + bearer_id = MAX_BEARERS; + i = MAX_BEARERS; + with_this_prio = 1; } - pr_warn("Bearer <%s>: trying with adjusted priority\n", name); - prio--; - bearer_id = 0; - with_this_prio = 1; } if (bearer_id >= MAX_BEARERS) { From 282c9eeda6c2c2f6932aef0fb85b352b6210b9e6 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Fri, 16 Apr 2021 16:05:56 +0200 Subject: [PATCH 071/196] serial: stm32: fix threaded interrupt handling [ Upstream commit e359b4411c2836cf87c8776682d1b594635570de ] When DMA is enabled the receive handler runs in a threaded handler, but the primary handler up until very recently neither disabled interrupts in the device or used IRQF_ONESHOT. This would lead to a deadlock if an interrupt comes in while the threaded receive handler is running under the port lock. Commit ad7676812437 ("serial: stm32: fix a deadlock condition with wakeup event") claimed to fix an unrelated deadlock, but unfortunately also disabled interrupts in the threaded handler. While this prevents the deadlock mentioned in the previous paragraph it also defeats the purpose of using a threaded handler in the first place. Fix this by making the interrupt one-shot and not disabling interrupts in the threaded handler. Note that (receive) DMA must not be used for a console port as the threaded handler could be interrupted while holding the port lock, something which could lead to a deadlock in case an interrupt handler ends up calling printk. Fixes: ad7676812437 ("serial: stm32: fix a deadlock condition with wakeup event") Fixes: 3489187204eb ("serial: stm32: adding dma support") Cc: stable@vger.kernel.org # 4.9 Cc: Alexandre TORGUE Cc: Gerald Baeza Reviewed-by: Valentin Caron Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20210416140557.25177-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/tty/serial/stm32-usart.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index 2cf9fc915510..844059861f9e 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -213,14 +213,11 @@ static void stm32_usart_receive_chars(struct uart_port *port, bool threaded) struct tty_port *tport = &port->state->port; struct stm32_port *stm32_port = to_stm32_port(port); const struct stm32_usart_offsets *ofs = &stm32_port->info->ofs; - unsigned long c, flags; + unsigned long c; u32 sr; char flag; - if (threaded) - spin_lock_irqsave(&port->lock, flags); - else - spin_lock(&port->lock); + spin_lock(&port->lock); while (stm32_usart_pending_rx(port, &sr, &stm32_port->last_res, threaded)) { @@ -277,10 +274,7 @@ static void stm32_usart_receive_chars(struct uart_port *port, bool threaded) uart_insert_char(port, sr, USART_SR_ORE, c, flag); } - if (threaded) - spin_unlock_irqrestore(&port->lock, flags); - else - spin_unlock(&port->lock); + spin_unlock(&port->lock); tty_flip_buffer_push(tport); } @@ -653,7 +647,8 @@ static int stm32_usart_startup(struct uart_port *port) ret = request_threaded_irq(port->irq, stm32_usart_interrupt, stm32_usart_threaded_interrupt, - IRQF_NO_SUSPEND, name, port); + IRQF_ONESHOT | IRQF_NO_SUSPEND, + name, port); if (ret) return ret; @@ -1126,6 +1121,13 @@ static int stm32_usart_of_dma_rx_probe(struct stm32_port *stm32port, struct dma_async_tx_descriptor *desc = NULL; int ret; + /* + * Using DMA and threaded handler for the console could lead to + * deadlocks. + */ + if (uart_console(port)) + return -ENODEV; + /* Request DMA RX channel */ stm32port->rx_ch = dma_request_slave_channel(dev, "rx"); if (!stm32port->rx_ch) { From 3c23e23c7ad9844a645f4e2bd8ec34a0a2ee5514 Mon Sep 17 00:00:00 2001 From: Jisheng Zhang Date: Fri, 2 Apr 2021 21:29:08 +0800 Subject: [PATCH 072/196] riscv: vdso: fix and clean-up Makefile [ Upstream commit 772d7891e8b3b0baae7bb88a294d61fd07ba6d15 ] Running "make" on an already compiled kernel tree will rebuild the kernel even without any modifications: CALL linux/scripts/checksyscalls.sh CALL linux/scripts/atomic/check-atomics.sh CHK include/generated/compile.h SO2S arch/riscv/kernel/vdso/vdso-syms.S AS arch/riscv/kernel/vdso/vdso-syms.o AR arch/riscv/kernel/vdso/built-in.a AR arch/riscv/kernel/built-in.a AR arch/riscv/built-in.a GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o AR init/built-in.a LD vmlinux.o The reason is "Any target that utilizes if_changed must be listed in $(targets), otherwise the command line check will fail, and the target will always be built" as explained by Documentation/kbuild/makefiles.rst Fix this build bug by adding vdso-syms.S to $(targets) At the same time, there are two trivial clean up modifications: - the vdso-dummy.o is not needed any more after so remove it. - vdso.lds is a generated file, so it should be prefixed with $(obj)/ instead of $(src)/ Fixes: c2c81bb2f691 ("RISC-V: Fix the VDSO symbol generaton for binutils-2.35+") Cc: stable@vger.kernel.org Signed-off-by: Jisheng Zhang Signed-off-by: Palmer Dabbelt Signed-off-by: Sasha Levin --- arch/riscv/kernel/vdso/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/riscv/kernel/vdso/Makefile b/arch/riscv/kernel/vdso/Makefile index ca2b40dfd24b..24d936c147cd 100644 --- a/arch/riscv/kernel/vdso/Makefile +++ b/arch/riscv/kernel/vdso/Makefile @@ -23,7 +23,7 @@ ifneq ($(c-gettimeofday-y),) endif # Build rules -targets := $(obj-vdso) vdso.so vdso.so.dbg vdso.lds vdso-dummy.o +targets := $(obj-vdso) vdso.so vdso.so.dbg vdso.lds vdso-syms.S obj-vdso := $(addprefix $(obj)/, $(obj-vdso)) obj-y += vdso.o vdso-syms.o @@ -41,7 +41,7 @@ KASAN_SANITIZE := n $(obj)/vdso.o: $(obj)/vdso.so # link rule for the .so file, .lds has to be first -$(obj)/vdso.so.dbg: $(src)/vdso.lds $(obj-vdso) FORCE +$(obj)/vdso.so.dbg: $(obj)/vdso.lds $(obj-vdso) FORCE $(call if_changed,vdsold) LDFLAGS_vdso.so.dbg = -shared -s -soname=linux-vdso.so.1 \ --build-id=sha1 --hash-style=both --eh-frame-hdr From 0b2a990e5d2f76d020cb840c456e6ec5f0c27530 Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Fri, 7 May 2021 21:06:38 +0100 Subject: [PATCH 073/196] io_uring: fix link timeout refs [ Upstream commit a298232ee6b9a1d5d732aa497ff8be0d45b5bd82 ] WARNING: CPU: 0 PID: 10242 at lib/refcount.c:28 refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28 RIP: 0010:refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28 Call Trace: __refcount_sub_and_test include/linux/refcount.h:283 [inline] __refcount_dec_and_test include/linux/refcount.h:315 [inline] refcount_dec_and_test include/linux/refcount.h:333 [inline] io_put_req fs/io_uring.c:2140 [inline] io_queue_linked_timeout fs/io_uring.c:6300 [inline] __io_queue_sqe+0xbef/0xec0 fs/io_uring.c:6354 io_submit_sqe fs/io_uring.c:6534 [inline] io_submit_sqes+0x2bbd/0x7c50 fs/io_uring.c:6660 __do_sys_io_uring_enter fs/io_uring.c:9240 [inline] __se_sys_io_uring_enter+0x256/0x1d60 fs/io_uring.c:9182 io_link_timeout_fn() should put only one reference of the linked timeout request, however in case of racing with the master request's completion first io_req_complete() puts one and then io_put_req_deferred() is called. Cc: stable@vger.kernel.org # 5.12+ Fixes: 9ae1f8dd372e0 ("io_uring: fix inconsistent lock state") Reported-by: syzbot+a2910119328ce8e7996f@syzkaller.appspotmail.com Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/ff51018ff29de5ffa76f09273ef48cb24c720368.1620417627.git.asml.silence@gmail.com Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- fs/io_uring.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/io_uring.c b/fs/io_uring.c index 369ec81033d6..958c463c11eb 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -6266,6 +6266,7 @@ static enum hrtimer_restart io_link_timeout_fn(struct hrtimer *timer) if (prev) { io_async_find_and_cancel(ctx, req, prev->user_data, -ETIME); io_put_req_deferred(prev, 1); + io_put_req_deferred(req, 1); } else { io_cqring_add_event(req, -ETIME, 0); io_put_req_deferred(req, 1); From ec72cb50c1db39816eae7296686449bba8ca0b2e Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Sun, 28 Feb 2021 22:35:15 +0000 Subject: [PATCH 074/196] io_uring: use better types for cflags [ Upstream commit 8c3f9cd1603d0e4af6c50ebc6d974ab7bdd03cf4 ] __io_cqring_fill_event() takes cflags as long to squeeze it into u32 in an CQE, awhile all users pass int or unsigned. Replace it with unsigned int and store it as u32 in struct io_completion to match CQE. Signed-off-by: Pavel Begunkov Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- fs/io_uring.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index 958c463c11eb..fdbaaf579cc6 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -545,7 +545,7 @@ struct io_statx { struct io_completion { struct file *file; struct list_head list; - int cflags; + u32 cflags; }; struct io_async_connect { @@ -1711,7 +1711,8 @@ static void io_cqring_overflow_flush(struct io_ring_ctx *ctx, bool force, } } -static void __io_cqring_fill_event(struct io_kiocb *req, long res, long cflags) +static void __io_cqring_fill_event(struct io_kiocb *req, long res, + unsigned int cflags) { struct io_ring_ctx *ctx = req->ctx; struct io_uring_cqe *cqe; From 58f4d45d8d4d391f60b6f0db6308df1994a265b3 Mon Sep 17 00:00:00 2001 From: James Zhu Date: Mon, 17 May 2021 16:39:17 -0400 Subject: [PATCH 075/196] drm/amdgpu/vcn3: add cancel_delayed_work_sync before power gate MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Upstream commit 4a62542ae064e3b645d6bbf2295a6c05136956c6 ] Add cancel_delayed_work_sync before set power gating state to avoid race condition issue when power gating. Signed-off-by: James Zhu Reviewed-by: Leo Liu Acked-by: Christian König Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index 700621ddc02e..c9c888be1228 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -345,15 +345,14 @@ done: static int vcn_v3_0_hw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - struct amdgpu_ring *ring; int i; + cancel_delayed_work_sync(&adev->vcn.idle_work); + for (i = 0; i < adev->vcn.num_vcn_inst; ++i) { if (adev->vcn.harvest_config & (1 << i)) continue; - ring = &adev->vcn.inst[i].ring_dec; - if (!amdgpu_sriov_vf(adev)) { if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) || (adev->vcn.cur_state != AMD_PG_STATE_GATE && From c12946548001bf1591426ebfec56b5d859de6262 Mon Sep 17 00:00:00 2001 From: James Zhu Date: Wed, 19 May 2021 12:04:38 -0400 Subject: [PATCH 076/196] drm/amdgpu/jpeg2.5: add cancel_delayed_work_sync before power gate MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Upstream commit 23f10a571da5eaa63b7845d16e2f49837e841ab9 ] Add cancel_delayed_work_sync before set power gating state to avoid race condition issue when power gating. Signed-off-by: James Zhu Reviewed-by: Leo Liu Acked-by: Christian König Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c index 63b350182389..8c84e35c2719 100644 --- a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c +++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c @@ -187,14 +187,14 @@ static int jpeg_v2_5_hw_init(void *handle) static int jpeg_v2_5_hw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - struct amdgpu_ring *ring; int i; + cancel_delayed_work_sync(&adev->vcn.idle_work); + for (i = 0; i < adev->jpeg.num_jpeg_inst; ++i) { if (adev->jpeg.harvest_config & (1 << i)) continue; - ring = &adev->jpeg.inst[i].ring_dec; if (adev->jpeg.cur_state != AMD_PG_STATE_GATE && RREG32_SOC15(JPEG, i, mmUVD_JRBC_STATUS)) jpeg_v2_5_set_powergating_state(adev, AMD_PG_STATE_GATE); From 7fa8ee00b5fab915856d03b50113be8fef1337dc Mon Sep 17 00:00:00 2001 From: James Zhu Date: Wed, 19 May 2021 12:08:20 -0400 Subject: [PATCH 077/196] drm/amdgpu/jpeg3: add cancel_delayed_work_sync before power gate MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Upstream commit 20ebbfd22f8115a1e4f60d3d289f66be4d47f1ec ] Add cancel_delayed_work_sync before set power gating state to avoid race condition issue when power gating. Signed-off-by: James Zhu Reviewed-by: Leo Liu Acked-by: Christian König Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/jpeg_v3_0.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v3_0.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v3_0.c index 9259e35f0f55..e00c88abeaed 100644 --- a/drivers/gpu/drm/amd/amdgpu/jpeg_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v3_0.c @@ -159,9 +159,9 @@ static int jpeg_v3_0_hw_init(void *handle) static int jpeg_v3_0_hw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - struct amdgpu_ring *ring; - ring = &adev->jpeg.inst->ring_dec; + cancel_delayed_work_sync(&adev->vcn.idle_work); + if (adev->jpeg.cur_state != AMD_PG_STATE_GATE && RREG32_SOC15(JPEG, 0, mmUVD_JRBC_STATUS)) jpeg_v3_0_set_powergating_state(adev, AMD_PG_STATE_GATE); From 3795007c8dfc8bca176529bfeceb17c6f4ef7e44 Mon Sep 17 00:00:00 2001 From: Lin Ma Date: Tue, 25 May 2021 14:39:02 +0200 Subject: [PATCH 078/196] Bluetooth: fix the erroneous flush_work() order commit 6a137caec23aeb9e036cdfd8a46dd8a366460e5d upstream. In the cleanup routine for failed initialization of HCI device, the flush_work(&hdev->rx_work) need to be finished before the flush_work(&hdev->cmd_work). Otherwise, the hci_rx_work() can possibly invoke new cmd_work and cause a bug, like double free, in late processings. This was assigned CVE-2021-3564. This patch reorder the flush_work() to fix this bug. Cc: Marcel Holtmann Cc: Johan Hedberg Cc: Luiz Augusto von Dentz Cc: "David S. Miller" Cc: Jakub Kicinski Cc: linux-bluetooth@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Lin Ma Signed-off-by: Hao Xiong Cc: stable Signed-off-by: Marcel Holtmann Signed-off-by: Greg Kroah-Hartman --- net/bluetooth/hci_core.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 0152bc6b6796..86ebfc6ae698 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -1602,8 +1602,13 @@ setup_failed: } else { /* Init failed, cleanup */ flush_work(&hdev->tx_work); - flush_work(&hdev->cmd_work); + + /* Since hci_rx_work() is possible to awake new cmd_work + * it should be flushed first to avoid unexpected call of + * hci_cmd_work() + */ flush_work(&hdev->rx_work); + flush_work(&hdev->cmd_work); skb_queue_purge(&hdev->cmd_q); skb_queue_purge(&hdev->rx_q); From 74caf718cc7422a957aac381c73d798c0a999a65 Mon Sep 17 00:00:00 2001 From: Lin Ma Date: Sun, 30 May 2021 21:37:43 +0800 Subject: [PATCH 079/196] Bluetooth: use correct lock to prevent UAF of hdev object commit e305509e678b3a4af2b3cfd410f409f7cdaabb52 upstream. The hci_sock_dev_event() function will cleanup the hdev object for sockets even if this object may still be in used within the hci_sock_bound_ioctl() function, result in UAF vulnerability. This patch replace the BH context lock to serialize these affairs and prevent the race condition. Signed-off-by: Lin Ma Signed-off-by: Marcel Holtmann Signed-off-by: Greg Kroah-Hartman --- net/bluetooth/hci_sock.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 251b9128f530..eed0dd066e12 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -762,7 +762,7 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event) /* Detach sockets from device */ read_lock(&hci_sk_list.lock); sk_for_each(sk, &hci_sk_list.head) { - bh_lock_sock_nested(sk); + lock_sock(sk); if (hci_pi(sk)->hdev == hdev) { hci_pi(sk)->hdev = NULL; sk->sk_err = EPIPE; @@ -771,7 +771,7 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event) hci_dev_put(hdev); } - bh_unlock_sock(sk); + release_sock(sk); } read_unlock(&hci_sk_list.lock); } From d64fdbaec09b4143aa1965e92d0ff8c8c84de585 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Fri, 4 Jun 2021 17:17:32 +0200 Subject: [PATCH 080/196] wireguard: do not use -O3 commit cc5060ca0285efe2728bced399a1955a7ce808b2 upstream. Apparently, various versions of gcc have O3-related miscompiles. Looking at the difference between -O2 and -O3 for gcc 11 doesn't indicate miscompiles, but the difference also doesn't seem so significant for performance that it's worth risking. Link: https://lore.kernel.org/lkml/CAHk-=wjuoGyxDhAF8SsrTkN0-YfCx7E6jUN3ikC_tn2AKWTTsA@mail.gmail.com/ Link: https://lore.kernel.org/lkml/CAHmME9otB5Wwxp7H8bR_i2uH2esEMvoBMC8uEXBMH9p0q1s6Bw@mail.gmail.com/ Reported-by: Linus Torvalds Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Cc: stable@vger.kernel.org Signed-off-by: Jason A. Donenfeld Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireguard/Makefile | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/wireguard/Makefile b/drivers/net/wireguard/Makefile index fc52b2cb500b..dbe1f8514efc 100644 --- a/drivers/net/wireguard/Makefile +++ b/drivers/net/wireguard/Makefile @@ -1,5 +1,4 @@ -ccflags-y := -O3 -ccflags-y += -D'pr_fmt(fmt)=KBUILD_MODNAME ": " fmt' +ccflags-y := -D'pr_fmt(fmt)=KBUILD_MODNAME ": " fmt' ccflags-$(CONFIG_WIREGUARD_DEBUG) += -DDEBUG wireguard-y := main.o wireguard-y += noise.o From d4275889ac9c9f3a4afafc3ec2a13154cdd0b632 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Fri, 4 Jun 2021 17:17:34 +0200 Subject: [PATCH 081/196] wireguard: peer: allocate in kmem_cache commit a4e9f8e3287c9eb6bf70df982870980dd3341863 upstream. With deployments having upwards of 600k peers now, this somewhat heavy structure could benefit from more fine-grained allocations. Specifically, instead of using a 2048-byte slab for a 1544-byte object, we can now use 1544-byte objects directly, thus saving almost 25% per-peer, or with 600k peers, that's a savings of 303 MiB. This also makes wireguard's memory usage more transparent in tools like slabtop and /proc/slabinfo. Fixes: 8b5553ace83c ("wireguard: queueing: get rid of per-peer ring buffers") Suggested-by: Arnd Bergmann Suggested-by: Matthew Wilcox Cc: stable@vger.kernel.org Signed-off-by: Jason A. Donenfeld Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireguard/main.c | 7 +++++++ drivers/net/wireguard/peer.c | 21 +++++++++++++++++---- drivers/net/wireguard/peer.h | 3 +++ 3 files changed, 27 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireguard/main.c b/drivers/net/wireguard/main.c index 7a7d5f1a80fc..0a3ebfdac794 100644 --- a/drivers/net/wireguard/main.c +++ b/drivers/net/wireguard/main.c @@ -28,6 +28,10 @@ static int __init mod_init(void) #endif wg_noise_init(); + ret = wg_peer_init(); + if (ret < 0) + goto err_peer; + ret = wg_device_init(); if (ret < 0) goto err_device; @@ -44,6 +48,8 @@ static int __init mod_init(void) err_netlink: wg_device_uninit(); err_device: + wg_peer_uninit(); +err_peer: return ret; } @@ -51,6 +57,7 @@ static void __exit mod_exit(void) { wg_genetlink_uninit(); wg_device_uninit(); + wg_peer_uninit(); } module_init(mod_init); diff --git a/drivers/net/wireguard/peer.c b/drivers/net/wireguard/peer.c index cd5cb0292cb6..6936a82364bf 100644 --- a/drivers/net/wireguard/peer.c +++ b/drivers/net/wireguard/peer.c @@ -15,6 +15,7 @@ #include #include +static struct kmem_cache *peer_cache; static atomic64_t peer_counter = ATOMIC64_INIT(0); struct wg_peer *wg_peer_create(struct wg_device *wg, @@ -29,10 +30,10 @@ struct wg_peer *wg_peer_create(struct wg_device *wg, if (wg->num_peers >= MAX_PEERS_PER_DEVICE) return ERR_PTR(ret); - peer = kzalloc(sizeof(*peer), GFP_KERNEL); + peer = kmem_cache_zalloc(peer_cache, GFP_KERNEL); if (unlikely(!peer)) return ERR_PTR(ret); - if (dst_cache_init(&peer->endpoint_cache, GFP_KERNEL)) + if (unlikely(dst_cache_init(&peer->endpoint_cache, GFP_KERNEL))) goto err; peer->device = wg; @@ -64,7 +65,7 @@ struct wg_peer *wg_peer_create(struct wg_device *wg, return peer; err: - kfree(peer); + kmem_cache_free(peer_cache, peer); return ERR_PTR(ret); } @@ -193,7 +194,8 @@ static void rcu_release(struct rcu_head *rcu) /* The final zeroing takes care of clearing any remaining handshake key * material and other potentially sensitive information. */ - kfree_sensitive(peer); + memzero_explicit(peer, sizeof(*peer)); + kmem_cache_free(peer_cache, peer); } static void kref_release(struct kref *refcount) @@ -225,3 +227,14 @@ void wg_peer_put(struct wg_peer *peer) return; kref_put(&peer->refcount, kref_release); } + +int __init wg_peer_init(void) +{ + peer_cache = KMEM_CACHE(wg_peer, 0); + return peer_cache ? 0 : -ENOMEM; +} + +void wg_peer_uninit(void) +{ + kmem_cache_destroy(peer_cache); +} diff --git a/drivers/net/wireguard/peer.h b/drivers/net/wireguard/peer.h index 0809cda08bfa..74227aa2d5b5 100644 --- a/drivers/net/wireguard/peer.h +++ b/drivers/net/wireguard/peer.h @@ -80,4 +80,7 @@ void wg_peer_put(struct wg_peer *peer); void wg_peer_remove(struct wg_peer *peer); void wg_peer_remove_all(struct wg_device *wg); +int wg_peer_init(void); +void wg_peer_uninit(void); + #endif /* _WG_PEER_H */ From f74da2c2546c402cd2fc4165ef54b48cce6e39cc Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Fri, 4 Jun 2021 17:17:33 +0200 Subject: [PATCH 082/196] wireguard: use synchronize_net rather than synchronize_rcu commit 24b70eeeb4f46c09487f8155239ebfb1f875774a upstream. Many of the synchronization points are sometimes called under the rtnl lock, which means we should use synchronize_net rather than synchronize_rcu. Under the hood, this expands to using the expedited flavor of function in the event that rtnl is held, in order to not stall other concurrent changes. This fixes some very, very long delays when removing multiple peers at once, which would cause some operations to take several minutes. Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Cc: stable@vger.kernel.org Signed-off-by: Jason A. Donenfeld Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireguard/peer.c | 6 +++--- drivers/net/wireguard/socket.c | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireguard/peer.c b/drivers/net/wireguard/peer.c index 6936a82364bf..1acd00ab2fbc 100644 --- a/drivers/net/wireguard/peer.c +++ b/drivers/net/wireguard/peer.c @@ -89,7 +89,7 @@ static void peer_make_dead(struct wg_peer *peer) /* Mark as dead, so that we don't allow jumping contexts after. */ WRITE_ONCE(peer->is_dead, true); - /* The caller must now synchronize_rcu() for this to take effect. */ + /* The caller must now synchronize_net() for this to take effect. */ } static void peer_remove_after_dead(struct wg_peer *peer) @@ -161,7 +161,7 @@ void wg_peer_remove(struct wg_peer *peer) lockdep_assert_held(&peer->device->device_update_lock); peer_make_dead(peer); - synchronize_rcu(); + synchronize_net(); peer_remove_after_dead(peer); } @@ -179,7 +179,7 @@ void wg_peer_remove_all(struct wg_device *wg) peer_make_dead(peer); list_add_tail(&peer->peer_list, &dead_peers); } - synchronize_rcu(); + synchronize_net(); list_for_each_entry_safe(peer, temp, &dead_peers, peer_list) peer_remove_after_dead(peer); } diff --git a/drivers/net/wireguard/socket.c b/drivers/net/wireguard/socket.c index c33e2c81635f..c8cd385d233b 100644 --- a/drivers/net/wireguard/socket.c +++ b/drivers/net/wireguard/socket.c @@ -430,7 +430,7 @@ void wg_socket_reinit(struct wg_device *wg, struct sock *new4, if (new4) wg->incoming_port = ntohs(inet_sk(new4)->inet_sport); mutex_unlock(&wg->socket_update_lock); - synchronize_rcu(); + synchronize_net(); sock_free(old4); sock_free(old6); } From b8d72ac1f2106adb25ef3e178f373b930aee7d8c Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Fri, 4 Jun 2021 17:17:30 +0200 Subject: [PATCH 083/196] wireguard: selftests: remove old conntrack kconfig value commit acf2492b51c9a3c4dfb947f4d3477a86d315150f upstream. On recent kernels, this config symbol is no longer used. Reported-by: Rui Salvaterra Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Cc: stable@vger.kernel.org Signed-off-by: Jason A. Donenfeld Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- tools/testing/selftests/wireguard/qemu/kernel.config | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/testing/selftests/wireguard/qemu/kernel.config b/tools/testing/selftests/wireguard/qemu/kernel.config index 4eecb432a66c..74db83a0aedd 100644 --- a/tools/testing/selftests/wireguard/qemu/kernel.config +++ b/tools/testing/selftests/wireguard/qemu/kernel.config @@ -19,7 +19,6 @@ CONFIG_NETFILTER_XTABLES=y CONFIG_NETFILTER_XT_NAT=y CONFIG_NETFILTER_XT_MATCH_LENGTH=y CONFIG_NETFILTER_XT_MARK=y -CONFIG_NF_CONNTRACK_IPV4=y CONFIG_NF_NAT_IPV4=y CONFIG_IP_NF_IPTABLES=y CONFIG_IP_NF_FILTER=y From 842c21d6a0427ed035e544cc49cc3f53b0cb41e0 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Fri, 4 Jun 2021 17:17:31 +0200 Subject: [PATCH 084/196] wireguard: selftests: make sure rp_filter is disabled on vethc commit f8873d11d4121aad35024f9379e431e0c83abead upstream. Some distros may enable strict rp_filter by default, which will prevent vethc from receiving the packets with an unrouteable reverse path address. Reported-by: Hangbin Liu Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Cc: stable@vger.kernel.org Signed-off-by: Jason A. Donenfeld Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- tools/testing/selftests/wireguard/netns.sh | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/wireguard/netns.sh b/tools/testing/selftests/wireguard/netns.sh index 7ed7cd95e58f..ebc4ee0fe179 100755 --- a/tools/testing/selftests/wireguard/netns.sh +++ b/tools/testing/selftests/wireguard/netns.sh @@ -363,6 +363,7 @@ ip1 -6 rule add table main suppress_prefixlength 0 ip1 -4 route add default dev wg0 table 51820 ip1 -4 rule add not fwmark 51820 table 51820 ip1 -4 rule add table main suppress_prefixlength 0 +n1 bash -c 'printf 0 > /proc/sys/net/ipv4/conf/vethc/rp_filter' # Flood the pings instead of sending just one, to trigger routing table reference counting bugs. n1 ping -W 1 -c 100 -f 192.168.99.7 n1 ping -W 1 -c 100 -f abab::1111 From 42a667715b1e118f725de85ac748983ced2ecb5e Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Fri, 4 Jun 2021 17:17:35 +0200 Subject: [PATCH 085/196] wireguard: allowedips: initialize list head in selftest commit 46cfe8eee285cde465b420637507884551f5d7ca upstream. The randomized trie tests weren't initializing the dummy peer list head, resulting in a NULL pointer dereference when used. Fix this by initializing it in the randomized trie test, just like we do for the static unit test. While we're at it, all of the other strings like this have the word "self-test", so add it to the missing place here. Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Cc: stable@vger.kernel.org Signed-off-by: Jason A. Donenfeld Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireguard/selftest/allowedips.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireguard/selftest/allowedips.c b/drivers/net/wireguard/selftest/allowedips.c index 846db14cb046..0d2a43a2d400 100644 --- a/drivers/net/wireguard/selftest/allowedips.c +++ b/drivers/net/wireguard/selftest/allowedips.c @@ -296,6 +296,7 @@ static __init bool randomized_test(void) goto free; } kref_init(&peers[i]->refcount); + INIT_LIST_HEAD(&peers[i]->allowedips_list); } mutex_lock(&mutex); @@ -333,7 +334,7 @@ static __init bool randomized_test(void) if (wg_allowedips_insert_v4(&t, (struct in_addr *)mutated, cidr, peer, &mutex) < 0) { - pr_err("allowedips random malloc: FAIL\n"); + pr_err("allowedips random self-test malloc: FAIL\n"); goto free_locked; } if (horrible_allowedips_insert_v4(&h, From 70a9a71ab3e55903ca171c22bb5432748dda9e7b Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Fri, 4 Jun 2021 17:17:36 +0200 Subject: [PATCH 086/196] wireguard: allowedips: remove nodes in O(1) commit f634f418c227c912e7ea95a3299efdc9b10e4022 upstream. Previously, deleting peers would require traversing the entire trie in order to rebalance nodes and safely free them. This meant that removing 1000 peers from a trie with a half million nodes would take an extremely long time, during which we're holding the rtnl lock. Large-scale users were reporting 200ms latencies added to the networking stack as a whole every time their userspace software would queue up significant removals. That's a serious situation. This commit fixes that by maintaining a double pointer to the parent's bit pointer for each node, and then using the already existing node list belonging to each peer to go directly to the node, fix up its pointers, and free it with RCU. This means removal is O(1) instead of O(n), and we don't use gobs of stack. The removal algorithm has the same downside as the code that it fixes: it won't collapse needlessly long runs of fillers. We can enhance that in the future if it ever becomes a problem. This commit documents that limitation with a TODO comment in code, a small but meaningful improvement over the prior situation. Currently the biggest flaw, which the next commit addresses, is that because this increases the node size on 64-bit machines from 60 bytes to 68 bytes. 60 rounds up to 64, but 68 rounds up to 128. So we wind up using twice as much memory per node, because of power-of-two allocations, which is a big bummer. We'll need to figure something out there. Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Cc: stable@vger.kernel.org Signed-off-by: Jason A. Donenfeld Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireguard/allowedips.c | 130 ++++++++++++----------------- drivers/net/wireguard/allowedips.h | 9 +- 2 files changed, 56 insertions(+), 83 deletions(-) diff --git a/drivers/net/wireguard/allowedips.c b/drivers/net/wireguard/allowedips.c index 3725e9cd85f4..2785cfd3a221 100644 --- a/drivers/net/wireguard/allowedips.c +++ b/drivers/net/wireguard/allowedips.c @@ -66,60 +66,6 @@ static void root_remove_peer_lists(struct allowedips_node *root) } } -static void walk_remove_by_peer(struct allowedips_node __rcu **top, - struct wg_peer *peer, struct mutex *lock) -{ -#define REF(p) rcu_access_pointer(p) -#define DEREF(p) rcu_dereference_protected(*(p), lockdep_is_held(lock)) -#define PUSH(p) ({ \ - WARN_ON(IS_ENABLED(DEBUG) && len >= 128); \ - stack[len++] = p; \ - }) - - struct allowedips_node __rcu **stack[128], **nptr; - struct allowedips_node *node, *prev; - unsigned int len; - - if (unlikely(!peer || !REF(*top))) - return; - - for (prev = NULL, len = 0, PUSH(top); len > 0; prev = node) { - nptr = stack[len - 1]; - node = DEREF(nptr); - if (!node) { - --len; - continue; - } - if (!prev || REF(prev->bit[0]) == node || - REF(prev->bit[1]) == node) { - if (REF(node->bit[0])) - PUSH(&node->bit[0]); - else if (REF(node->bit[1])) - PUSH(&node->bit[1]); - } else if (REF(node->bit[0]) == prev) { - if (REF(node->bit[1])) - PUSH(&node->bit[1]); - } else { - if (rcu_dereference_protected(node->peer, - lockdep_is_held(lock)) == peer) { - RCU_INIT_POINTER(node->peer, NULL); - list_del_init(&node->peer_list); - if (!node->bit[0] || !node->bit[1]) { - rcu_assign_pointer(*nptr, DEREF( - &node->bit[!REF(node->bit[0])])); - kfree_rcu(node, rcu); - node = DEREF(nptr); - } - } - --len; - } - } - -#undef REF -#undef DEREF -#undef PUSH -} - static unsigned int fls128(u64 a, u64 b) { return a ? fls64(a) + 64U : fls64(b); @@ -224,6 +170,7 @@ static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key, RCU_INIT_POINTER(node->peer, peer); list_add_tail(&node->peer_list, &peer->allowedips_list); copy_and_assign_cidr(node, key, cidr, bits); + rcu_assign_pointer(node->parent_bit, trie); rcu_assign_pointer(*trie, node); return 0; } @@ -243,9 +190,9 @@ static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key, if (!node) { down = rcu_dereference_protected(*trie, lockdep_is_held(lock)); } else { - down = rcu_dereference_protected(CHOOSE_NODE(node, key), - lockdep_is_held(lock)); + down = rcu_dereference_protected(CHOOSE_NODE(node, key), lockdep_is_held(lock)); if (!down) { + rcu_assign_pointer(newnode->parent_bit, &CHOOSE_NODE(node, key)); rcu_assign_pointer(CHOOSE_NODE(node, key), newnode); return 0; } @@ -254,29 +201,37 @@ static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key, parent = node; if (newnode->cidr == cidr) { + rcu_assign_pointer(down->parent_bit, &CHOOSE_NODE(newnode, down->bits)); rcu_assign_pointer(CHOOSE_NODE(newnode, down->bits), down); - if (!parent) + if (!parent) { + rcu_assign_pointer(newnode->parent_bit, trie); rcu_assign_pointer(*trie, newnode); - else - rcu_assign_pointer(CHOOSE_NODE(parent, newnode->bits), - newnode); - } else { - node = kzalloc(sizeof(*node), GFP_KERNEL); - if (unlikely(!node)) { - list_del(&newnode->peer_list); - kfree(newnode); - return -ENOMEM; + } else { + rcu_assign_pointer(newnode->parent_bit, &CHOOSE_NODE(parent, newnode->bits)); + rcu_assign_pointer(CHOOSE_NODE(parent, newnode->bits), newnode); } - INIT_LIST_HEAD(&node->peer_list); - copy_and_assign_cidr(node, newnode->bits, cidr, bits); + return 0; + } - rcu_assign_pointer(CHOOSE_NODE(node, down->bits), down); - rcu_assign_pointer(CHOOSE_NODE(node, newnode->bits), newnode); - if (!parent) - rcu_assign_pointer(*trie, node); - else - rcu_assign_pointer(CHOOSE_NODE(parent, node->bits), - node); + node = kzalloc(sizeof(*node), GFP_KERNEL); + if (unlikely(!node)) { + list_del(&newnode->peer_list); + kfree(newnode); + return -ENOMEM; + } + INIT_LIST_HEAD(&node->peer_list); + copy_and_assign_cidr(node, newnode->bits, cidr, bits); + + rcu_assign_pointer(down->parent_bit, &CHOOSE_NODE(node, down->bits)); + rcu_assign_pointer(CHOOSE_NODE(node, down->bits), down); + rcu_assign_pointer(newnode->parent_bit, &CHOOSE_NODE(node, newnode->bits)); + rcu_assign_pointer(CHOOSE_NODE(node, newnode->bits), newnode); + if (!parent) { + rcu_assign_pointer(node->parent_bit, trie); + rcu_assign_pointer(*trie, node); + } else { + rcu_assign_pointer(node->parent_bit, &CHOOSE_NODE(parent, node->bits)); + rcu_assign_pointer(CHOOSE_NODE(parent, node->bits), node); } return 0; } @@ -335,9 +290,30 @@ int wg_allowedips_insert_v6(struct allowedips *table, const struct in6_addr *ip, void wg_allowedips_remove_by_peer(struct allowedips *table, struct wg_peer *peer, struct mutex *lock) { + struct allowedips_node *node, *child, *tmp; + + if (list_empty(&peer->allowedips_list)) + return; ++table->seq; - walk_remove_by_peer(&table->root4, peer, lock); - walk_remove_by_peer(&table->root6, peer, lock); + list_for_each_entry_safe(node, tmp, &peer->allowedips_list, peer_list) { + list_del_init(&node->peer_list); + RCU_INIT_POINTER(node->peer, NULL); + if (node->bit[0] && node->bit[1]) + continue; + child = rcu_dereference_protected( + node->bit[!rcu_access_pointer(node->bit[0])], + lockdep_is_held(lock)); + if (child) + child->parent_bit = node->parent_bit; + *rcu_dereference_protected(node->parent_bit, lockdep_is_held(lock)) = child; + kfree_rcu(node, rcu); + + /* TODO: Note that we currently don't walk up and down in order to + * free any potential filler nodes. This means that this function + * doesn't free up as much as it could, which could be revisited + * at some point. + */ + } } int wg_allowedips_read_node(struct allowedips_node *node, u8 ip[16], u8 *cidr) diff --git a/drivers/net/wireguard/allowedips.h b/drivers/net/wireguard/allowedips.h index e5c83cafcef4..f08f552e6852 100644 --- a/drivers/net/wireguard/allowedips.h +++ b/drivers/net/wireguard/allowedips.h @@ -15,14 +15,11 @@ struct wg_peer; struct allowedips_node { struct wg_peer __rcu *peer; struct allowedips_node __rcu *bit[2]; - /* While it may seem scandalous that we waste space for v4, - * we're alloc'ing to the nearest power of 2 anyway, so this - * doesn't actually make a difference. - */ - u8 bits[16] __aligned(__alignof(u64)); u8 cidr, bit_at_a, bit_at_b, bitlen; + u8 bits[16] __aligned(__alignof(u64)); - /* Keep rarely used list at bottom to be beyond cache line. */ + /* Keep rarely used members at bottom to be beyond cache line. */ + struct allowedips_node *__rcu *parent_bit; /* XXX: this puts us at 68->128 bytes instead of 60->64 bytes!! */ union { struct list_head peer_list; struct rcu_head rcu; From c5155c741a484e036e7997420559431a951f2106 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Fri, 4 Jun 2021 17:17:37 +0200 Subject: [PATCH 087/196] wireguard: allowedips: allocate nodes in kmem_cache commit dc680de28ca849dfe589dc15ac56d22505f0ef11 upstream. The previous commit moved from O(n) to O(1) for removal, but in the process introduced an additional pointer member to a struct that increased the size from 60 to 68 bytes, putting nodes in the 128-byte slab. With deployed systems having as many as 2 million nodes, this represents a significant doubling in memory usage (128 MiB -> 256 MiB). Fix this by using our own kmem_cache, that's sized exactly right. This also makes wireguard's memory usage more transparent in tools like slabtop and /proc/slabinfo. Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Suggested-by: Arnd Bergmann Suggested-by: Matthew Wilcox Cc: stable@vger.kernel.org Signed-off-by: Jason A. Donenfeld Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireguard/allowedips.c | 31 ++++++++++++++++++++++++------ drivers/net/wireguard/allowedips.h | 5 ++++- drivers/net/wireguard/main.c | 10 +++++++++- 3 files changed, 38 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireguard/allowedips.c b/drivers/net/wireguard/allowedips.c index 2785cfd3a221..c540dce8d224 100644 --- a/drivers/net/wireguard/allowedips.c +++ b/drivers/net/wireguard/allowedips.c @@ -6,6 +6,8 @@ #include "allowedips.h" #include "peer.h" +static struct kmem_cache *node_cache; + static void swap_endian(u8 *dst, const u8 *src, u8 bits) { if (bits == 32) { @@ -40,6 +42,11 @@ static void push_rcu(struct allowedips_node **stack, } } +static void node_free_rcu(struct rcu_head *rcu) +{ + kmem_cache_free(node_cache, container_of(rcu, struct allowedips_node, rcu)); +} + static void root_free_rcu(struct rcu_head *rcu) { struct allowedips_node *node, *stack[128] = { @@ -49,7 +56,7 @@ static void root_free_rcu(struct rcu_head *rcu) while (len > 0 && (node = stack[--len])) { push_rcu(stack, node->bit[0], &len); push_rcu(stack, node->bit[1], &len); - kfree(node); + kmem_cache_free(node_cache, node); } } @@ -164,7 +171,7 @@ static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key, return -EINVAL; if (!rcu_access_pointer(*trie)) { - node = kzalloc(sizeof(*node), GFP_KERNEL); + node = kmem_cache_zalloc(node_cache, GFP_KERNEL); if (unlikely(!node)) return -ENOMEM; RCU_INIT_POINTER(node->peer, peer); @@ -180,7 +187,7 @@ static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key, return 0; } - newnode = kzalloc(sizeof(*newnode), GFP_KERNEL); + newnode = kmem_cache_zalloc(node_cache, GFP_KERNEL); if (unlikely(!newnode)) return -ENOMEM; RCU_INIT_POINTER(newnode->peer, peer); @@ -213,10 +220,10 @@ static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key, return 0; } - node = kzalloc(sizeof(*node), GFP_KERNEL); + node = kmem_cache_zalloc(node_cache, GFP_KERNEL); if (unlikely(!node)) { list_del(&newnode->peer_list); - kfree(newnode); + kmem_cache_free(node_cache, newnode); return -ENOMEM; } INIT_LIST_HEAD(&node->peer_list); @@ -306,7 +313,7 @@ void wg_allowedips_remove_by_peer(struct allowedips *table, if (child) child->parent_bit = node->parent_bit; *rcu_dereference_protected(node->parent_bit, lockdep_is_held(lock)) = child; - kfree_rcu(node, rcu); + call_rcu(&node->rcu, node_free_rcu); /* TODO: Note that we currently don't walk up and down in order to * free any potential filler nodes. This means that this function @@ -350,4 +357,16 @@ struct wg_peer *wg_allowedips_lookup_src(struct allowedips *table, return NULL; } +int __init wg_allowedips_slab_init(void) +{ + node_cache = KMEM_CACHE(allowedips_node, 0); + return node_cache ? 0 : -ENOMEM; +} + +void wg_allowedips_slab_uninit(void) +{ + rcu_barrier(); + kmem_cache_destroy(node_cache); +} + #include "selftest/allowedips.c" diff --git a/drivers/net/wireguard/allowedips.h b/drivers/net/wireguard/allowedips.h index f08f552e6852..32d611aaf3cc 100644 --- a/drivers/net/wireguard/allowedips.h +++ b/drivers/net/wireguard/allowedips.h @@ -19,7 +19,7 @@ struct allowedips_node { u8 bits[16] __aligned(__alignof(u64)); /* Keep rarely used members at bottom to be beyond cache line. */ - struct allowedips_node *__rcu *parent_bit; /* XXX: this puts us at 68->128 bytes instead of 60->64 bytes!! */ + struct allowedips_node *__rcu *parent_bit; union { struct list_head peer_list; struct rcu_head rcu; @@ -53,4 +53,7 @@ struct wg_peer *wg_allowedips_lookup_src(struct allowedips *table, bool wg_allowedips_selftest(void); #endif +int wg_allowedips_slab_init(void); +void wg_allowedips_slab_uninit(void); + #endif /* _WG_ALLOWEDIPS_H */ diff --git a/drivers/net/wireguard/main.c b/drivers/net/wireguard/main.c index 0a3ebfdac794..75dbe77b0b4b 100644 --- a/drivers/net/wireguard/main.c +++ b/drivers/net/wireguard/main.c @@ -21,10 +21,15 @@ static int __init mod_init(void) { int ret; + ret = wg_allowedips_slab_init(); + if (ret < 0) + goto err_allowedips; + #ifdef DEBUG + ret = -ENOTRECOVERABLE; if (!wg_allowedips_selftest() || !wg_packet_counter_selftest() || !wg_ratelimiter_selftest()) - return -ENOTRECOVERABLE; + goto err_peer; #endif wg_noise_init(); @@ -50,6 +55,8 @@ err_netlink: err_device: wg_peer_uninit(); err_peer: + wg_allowedips_slab_uninit(); +err_allowedips: return ret; } @@ -58,6 +65,7 @@ static void __exit mod_exit(void) wg_genetlink_uninit(); wg_device_uninit(); wg_peer_uninit(); + wg_allowedips_slab_uninit(); } module_init(mod_init); From df3b45f6d1ce605120750b983fc4448e3769619a Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Fri, 4 Jun 2021 17:17:38 +0200 Subject: [PATCH 088/196] wireguard: allowedips: free empty intermediate nodes when removing single node commit bf7b042dc62a31f66d3a41dd4dfc7806f267b307 upstream. When removing single nodes, it's possible that that node's parent is an empty intermediate node, in which case, it too should be removed. Otherwise the trie fills up and never is fully emptied, leading to gradual memory leaks over time for tries that are modified often. There was originally code to do this, but was removed during refactoring in 2016 and never reworked. Now that we have proper parent pointers from the previous commits, we can implement this properly. In order to reduce branching and expensive comparisons, we want to keep the double pointer for parent assignment (which lets us easily chain up to the root), but we still need to actually get the parent's base address. So encode the bit number into the last two bits of the pointer, and pack and unpack it as needed. This is a little bit clumsy but is the fastest and less memory wasteful of the compromises. Note that we align the root struct here to a minimum of 4, because it's embedded into a larger struct, and we're relying on having the bottom two bits for our flag, which would only be 16-bit aligned on m68k. The existing macro-based helpers were a bit unwieldy for adding the bit packing to, so this commit replaces them with safer and clearer ordinary functions. We add a test to the randomized/fuzzer part of the selftests, to free the randomized tries by-peer, refuzz it, and repeat, until it's supposed to be empty, and then then see if that actually resulted in the whole thing being emptied. That combined with kmemcheck should hopefully make sure this commit is doing what it should. Along the way this resulted in various other cleanups of the tests and fixes for recent graphviz. Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Cc: stable@vger.kernel.org Signed-off-by: Jason A. Donenfeld Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireguard/allowedips.c | 102 ++++++------ drivers/net/wireguard/allowedips.h | 4 +- drivers/net/wireguard/selftest/allowedips.c | 164 ++++++++++---------- 3 files changed, 138 insertions(+), 132 deletions(-) diff --git a/drivers/net/wireguard/allowedips.c b/drivers/net/wireguard/allowedips.c index c540dce8d224..b7197e80f226 100644 --- a/drivers/net/wireguard/allowedips.c +++ b/drivers/net/wireguard/allowedips.c @@ -30,8 +30,11 @@ static void copy_and_assign_cidr(struct allowedips_node *node, const u8 *src, node->bitlen = bits; memcpy(node->bits, src, bits / 8U); } -#define CHOOSE_NODE(parent, key) \ - parent->bit[(key[parent->bit_at_a] >> parent->bit_at_b) & 1] + +static inline u8 choose(struct allowedips_node *node, const u8 *key) +{ + return (key[node->bit_at_a] >> node->bit_at_b) & 1; +} static void push_rcu(struct allowedips_node **stack, struct allowedips_node __rcu *p, unsigned int *len) @@ -112,7 +115,7 @@ static struct allowedips_node *find_node(struct allowedips_node *trie, u8 bits, found = node; if (node->cidr == bits) break; - node = rcu_dereference_bh(CHOOSE_NODE(node, key)); + node = rcu_dereference_bh(node->bit[choose(node, key)]); } return found; } @@ -144,8 +147,7 @@ static bool node_placement(struct allowedips_node __rcu *trie, const u8 *key, u8 cidr, u8 bits, struct allowedips_node **rnode, struct mutex *lock) { - struct allowedips_node *node = rcu_dereference_protected(trie, - lockdep_is_held(lock)); + struct allowedips_node *node = rcu_dereference_protected(trie, lockdep_is_held(lock)); struct allowedips_node *parent = NULL; bool exact = false; @@ -155,13 +157,24 @@ static bool node_placement(struct allowedips_node __rcu *trie, const u8 *key, exact = true; break; } - node = rcu_dereference_protected(CHOOSE_NODE(parent, key), - lockdep_is_held(lock)); + node = rcu_dereference_protected(parent->bit[choose(parent, key)], lockdep_is_held(lock)); } *rnode = parent; return exact; } +static inline void connect_node(struct allowedips_node **parent, u8 bit, struct allowedips_node *node) +{ + node->parent_bit_packed = (unsigned long)parent | bit; + rcu_assign_pointer(*parent, node); +} + +static inline void choose_and_connect_node(struct allowedips_node *parent, struct allowedips_node *node) +{ + u8 bit = choose(parent, node->bits); + connect_node(&parent->bit[bit], bit, node); +} + static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key, u8 cidr, struct wg_peer *peer, struct mutex *lock) { @@ -177,8 +190,7 @@ static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key, RCU_INIT_POINTER(node->peer, peer); list_add_tail(&node->peer_list, &peer->allowedips_list); copy_and_assign_cidr(node, key, cidr, bits); - rcu_assign_pointer(node->parent_bit, trie); - rcu_assign_pointer(*trie, node); + connect_node(trie, 2, node); return 0; } if (node_placement(*trie, key, cidr, bits, &node, lock)) { @@ -197,10 +209,10 @@ static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key, if (!node) { down = rcu_dereference_protected(*trie, lockdep_is_held(lock)); } else { - down = rcu_dereference_protected(CHOOSE_NODE(node, key), lockdep_is_held(lock)); + const u8 bit = choose(node, key); + down = rcu_dereference_protected(node->bit[bit], lockdep_is_held(lock)); if (!down) { - rcu_assign_pointer(newnode->parent_bit, &CHOOSE_NODE(node, key)); - rcu_assign_pointer(CHOOSE_NODE(node, key), newnode); + connect_node(&node->bit[bit], bit, newnode); return 0; } } @@ -208,15 +220,11 @@ static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key, parent = node; if (newnode->cidr == cidr) { - rcu_assign_pointer(down->parent_bit, &CHOOSE_NODE(newnode, down->bits)); - rcu_assign_pointer(CHOOSE_NODE(newnode, down->bits), down); - if (!parent) { - rcu_assign_pointer(newnode->parent_bit, trie); - rcu_assign_pointer(*trie, newnode); - } else { - rcu_assign_pointer(newnode->parent_bit, &CHOOSE_NODE(parent, newnode->bits)); - rcu_assign_pointer(CHOOSE_NODE(parent, newnode->bits), newnode); - } + choose_and_connect_node(newnode, down); + if (!parent) + connect_node(trie, 2, newnode); + else + choose_and_connect_node(parent, newnode); return 0; } @@ -229,17 +237,12 @@ static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key, INIT_LIST_HEAD(&node->peer_list); copy_and_assign_cidr(node, newnode->bits, cidr, bits); - rcu_assign_pointer(down->parent_bit, &CHOOSE_NODE(node, down->bits)); - rcu_assign_pointer(CHOOSE_NODE(node, down->bits), down); - rcu_assign_pointer(newnode->parent_bit, &CHOOSE_NODE(node, newnode->bits)); - rcu_assign_pointer(CHOOSE_NODE(node, newnode->bits), newnode); - if (!parent) { - rcu_assign_pointer(node->parent_bit, trie); - rcu_assign_pointer(*trie, node); - } else { - rcu_assign_pointer(node->parent_bit, &CHOOSE_NODE(parent, node->bits)); - rcu_assign_pointer(CHOOSE_NODE(parent, node->bits), node); - } + choose_and_connect_node(node, down); + choose_and_connect_node(node, newnode); + if (!parent) + connect_node(trie, 2, node); + else + choose_and_connect_node(parent, node); return 0; } @@ -297,7 +300,8 @@ int wg_allowedips_insert_v6(struct allowedips *table, const struct in6_addr *ip, void wg_allowedips_remove_by_peer(struct allowedips *table, struct wg_peer *peer, struct mutex *lock) { - struct allowedips_node *node, *child, *tmp; + struct allowedips_node *node, *child, **parent_bit, *parent, *tmp; + bool free_parent; if (list_empty(&peer->allowedips_list)) return; @@ -307,19 +311,29 @@ void wg_allowedips_remove_by_peer(struct allowedips *table, RCU_INIT_POINTER(node->peer, NULL); if (node->bit[0] && node->bit[1]) continue; - child = rcu_dereference_protected( - node->bit[!rcu_access_pointer(node->bit[0])], - lockdep_is_held(lock)); + child = rcu_dereference_protected(node->bit[!rcu_access_pointer(node->bit[0])], + lockdep_is_held(lock)); if (child) - child->parent_bit = node->parent_bit; - *rcu_dereference_protected(node->parent_bit, lockdep_is_held(lock)) = child; + child->parent_bit_packed = node->parent_bit_packed; + parent_bit = (struct allowedips_node **)(node->parent_bit_packed & ~3UL); + *parent_bit = child; + parent = (void *)parent_bit - + offsetof(struct allowedips_node, bit[node->parent_bit_packed & 1]); + free_parent = !rcu_access_pointer(node->bit[0]) && + !rcu_access_pointer(node->bit[1]) && + (node->parent_bit_packed & 3) <= 1 && + !rcu_access_pointer(parent->peer); + if (free_parent) + child = rcu_dereference_protected( + parent->bit[!(node->parent_bit_packed & 1)], + lockdep_is_held(lock)); call_rcu(&node->rcu, node_free_rcu); - - /* TODO: Note that we currently don't walk up and down in order to - * free any potential filler nodes. This means that this function - * doesn't free up as much as it could, which could be revisited - * at some point. - */ + if (!free_parent) + continue; + if (child) + child->parent_bit_packed = parent->parent_bit_packed; + *(struct allowedips_node **)(parent->parent_bit_packed & ~3UL) = child; + call_rcu(&parent->rcu, node_free_rcu); } } diff --git a/drivers/net/wireguard/allowedips.h b/drivers/net/wireguard/allowedips.h index 32d611aaf3cc..2346c797eb4d 100644 --- a/drivers/net/wireguard/allowedips.h +++ b/drivers/net/wireguard/allowedips.h @@ -19,7 +19,7 @@ struct allowedips_node { u8 bits[16] __aligned(__alignof(u64)); /* Keep rarely used members at bottom to be beyond cache line. */ - struct allowedips_node *__rcu *parent_bit; + unsigned long parent_bit_packed; union { struct list_head peer_list; struct rcu_head rcu; @@ -30,7 +30,7 @@ struct allowedips { struct allowedips_node __rcu *root4; struct allowedips_node __rcu *root6; u64 seq; -}; +} __aligned(4); /* We pack the lower 2 bits of &root, but m68k only gives 16-bit alignment. */ void wg_allowedips_init(struct allowedips *table); void wg_allowedips_free(struct allowedips *table, struct mutex *mutex); diff --git a/drivers/net/wireguard/selftest/allowedips.c b/drivers/net/wireguard/selftest/allowedips.c index 0d2a43a2d400..e173204ae7d7 100644 --- a/drivers/net/wireguard/selftest/allowedips.c +++ b/drivers/net/wireguard/selftest/allowedips.c @@ -19,32 +19,22 @@ #include -static __init void swap_endian_and_apply_cidr(u8 *dst, const u8 *src, u8 bits, - u8 cidr) -{ - swap_endian(dst, src, bits); - memset(dst + (cidr + 7) / 8, 0, bits / 8 - (cidr + 7) / 8); - if (cidr) - dst[(cidr + 7) / 8 - 1] &= ~0U << ((8 - (cidr % 8)) % 8); -} - static __init void print_node(struct allowedips_node *node, u8 bits) { char *fmt_connection = KERN_DEBUG "\t\"%p/%d\" -> \"%p/%d\";\n"; - char *fmt_declaration = KERN_DEBUG - "\t\"%p/%d\"[style=%s, color=\"#%06x\"];\n"; + char *fmt_declaration = KERN_DEBUG "\t\"%p/%d\"[style=%s, color=\"#%06x\"];\n"; + u8 ip1[16], ip2[16], cidr1, cidr2; char *style = "dotted"; - u8 ip1[16], ip2[16]; u32 color = 0; + if (node == NULL) + return; if (bits == 32) { fmt_connection = KERN_DEBUG "\t\"%pI4/%d\" -> \"%pI4/%d\";\n"; - fmt_declaration = KERN_DEBUG - "\t\"%pI4/%d\"[style=%s, color=\"#%06x\"];\n"; + fmt_declaration = KERN_DEBUG "\t\"%pI4/%d\"[style=%s, color=\"#%06x\"];\n"; } else if (bits == 128) { fmt_connection = KERN_DEBUG "\t\"%pI6/%d\" -> \"%pI6/%d\";\n"; - fmt_declaration = KERN_DEBUG - "\t\"%pI6/%d\"[style=%s, color=\"#%06x\"];\n"; + fmt_declaration = KERN_DEBUG "\t\"%pI6/%d\"[style=%s, color=\"#%06x\"];\n"; } if (node->peer) { hsiphash_key_t key = { { 0 } }; @@ -55,24 +45,20 @@ static __init void print_node(struct allowedips_node *node, u8 bits) hsiphash_1u32(0xabad1dea, &key) % 200; style = "bold"; } - swap_endian_and_apply_cidr(ip1, node->bits, bits, node->cidr); - printk(fmt_declaration, ip1, node->cidr, style, color); + wg_allowedips_read_node(node, ip1, &cidr1); + printk(fmt_declaration, ip1, cidr1, style, color); if (node->bit[0]) { - swap_endian_and_apply_cidr(ip2, - rcu_dereference_raw(node->bit[0])->bits, bits, - node->cidr); - printk(fmt_connection, ip1, node->cidr, ip2, - rcu_dereference_raw(node->bit[0])->cidr); - print_node(rcu_dereference_raw(node->bit[0]), bits); + wg_allowedips_read_node(rcu_dereference_raw(node->bit[0]), ip2, &cidr2); + printk(fmt_connection, ip1, cidr1, ip2, cidr2); } if (node->bit[1]) { - swap_endian_and_apply_cidr(ip2, - rcu_dereference_raw(node->bit[1])->bits, - bits, node->cidr); - printk(fmt_connection, ip1, node->cidr, ip2, - rcu_dereference_raw(node->bit[1])->cidr); - print_node(rcu_dereference_raw(node->bit[1]), bits); + wg_allowedips_read_node(rcu_dereference_raw(node->bit[1]), ip2, &cidr2); + printk(fmt_connection, ip1, cidr1, ip2, cidr2); } + if (node->bit[0]) + print_node(rcu_dereference_raw(node->bit[0]), bits); + if (node->bit[1]) + print_node(rcu_dereference_raw(node->bit[1]), bits); } static __init void print_tree(struct allowedips_node __rcu *top, u8 bits) @@ -121,8 +107,8 @@ static __init inline union nf_inet_addr horrible_cidr_to_mask(u8 cidr) { union nf_inet_addr mask; - memset(&mask, 0x00, 128 / 8); - memset(&mask, 0xff, cidr / 8); + memset(&mask, 0, sizeof(mask)); + memset(&mask.all, 0xff, cidr / 8); if (cidr % 32) mask.all[cidr / 32] = (__force u32)htonl( (0xFFFFFFFFUL << (32 - (cidr % 32))) & 0xFFFFFFFFUL); @@ -149,42 +135,36 @@ horrible_mask_self(struct horrible_allowedips_node *node) } static __init inline bool -horrible_match_v4(const struct horrible_allowedips_node *node, - struct in_addr *ip) +horrible_match_v4(const struct horrible_allowedips_node *node, struct in_addr *ip) { return (ip->s_addr & node->mask.ip) == node->ip.ip; } static __init inline bool -horrible_match_v6(const struct horrible_allowedips_node *node, - struct in6_addr *ip) +horrible_match_v6(const struct horrible_allowedips_node *node, struct in6_addr *ip) { - return (ip->in6_u.u6_addr32[0] & node->mask.ip6[0]) == - node->ip.ip6[0] && - (ip->in6_u.u6_addr32[1] & node->mask.ip6[1]) == - node->ip.ip6[1] && - (ip->in6_u.u6_addr32[2] & node->mask.ip6[2]) == - node->ip.ip6[2] && + return (ip->in6_u.u6_addr32[0] & node->mask.ip6[0]) == node->ip.ip6[0] && + (ip->in6_u.u6_addr32[1] & node->mask.ip6[1]) == node->ip.ip6[1] && + (ip->in6_u.u6_addr32[2] & node->mask.ip6[2]) == node->ip.ip6[2] && (ip->in6_u.u6_addr32[3] & node->mask.ip6[3]) == node->ip.ip6[3]; } static __init void -horrible_insert_ordered(struct horrible_allowedips *table, - struct horrible_allowedips_node *node) +horrible_insert_ordered(struct horrible_allowedips *table, struct horrible_allowedips_node *node) { struct horrible_allowedips_node *other = NULL, *where = NULL; u8 my_cidr = horrible_mask_to_cidr(node->mask); hlist_for_each_entry(other, &table->head, table) { - if (!memcmp(&other->mask, &node->mask, - sizeof(union nf_inet_addr)) && - !memcmp(&other->ip, &node->ip, - sizeof(union nf_inet_addr)) && - other->ip_version == node->ip_version) { + if (other->ip_version == node->ip_version && + !memcmp(&other->mask, &node->mask, sizeof(union nf_inet_addr)) && + !memcmp(&other->ip, &node->ip, sizeof(union nf_inet_addr))) { other->value = node->value; kfree(node); return; } + } + hlist_for_each_entry(other, &table->head, table) { where = other; if (horrible_mask_to_cidr(other->mask) <= my_cidr) break; @@ -201,8 +181,7 @@ static __init int horrible_allowedips_insert_v4(struct horrible_allowedips *table, struct in_addr *ip, u8 cidr, void *value) { - struct horrible_allowedips_node *node = kzalloc(sizeof(*node), - GFP_KERNEL); + struct horrible_allowedips_node *node = kzalloc(sizeof(*node), GFP_KERNEL); if (unlikely(!node)) return -ENOMEM; @@ -219,8 +198,7 @@ static __init int horrible_allowedips_insert_v6(struct horrible_allowedips *table, struct in6_addr *ip, u8 cidr, void *value) { - struct horrible_allowedips_node *node = kzalloc(sizeof(*node), - GFP_KERNEL); + struct horrible_allowedips_node *node = kzalloc(sizeof(*node), GFP_KERNEL); if (unlikely(!node)) return -ENOMEM; @@ -234,39 +212,43 @@ horrible_allowedips_insert_v6(struct horrible_allowedips *table, } static __init void * -horrible_allowedips_lookup_v4(struct horrible_allowedips *table, - struct in_addr *ip) +horrible_allowedips_lookup_v4(struct horrible_allowedips *table, struct in_addr *ip) { struct horrible_allowedips_node *node; - void *ret = NULL; hlist_for_each_entry(node, &table->head, table) { - if (node->ip_version != 4) - continue; - if (horrible_match_v4(node, ip)) { - ret = node->value; - break; - } + if (node->ip_version == 4 && horrible_match_v4(node, ip)) + return node->value; } - return ret; + return NULL; } static __init void * -horrible_allowedips_lookup_v6(struct horrible_allowedips *table, - struct in6_addr *ip) +horrible_allowedips_lookup_v6(struct horrible_allowedips *table, struct in6_addr *ip) { struct horrible_allowedips_node *node; - void *ret = NULL; hlist_for_each_entry(node, &table->head, table) { - if (node->ip_version != 6) - continue; - if (horrible_match_v6(node, ip)) { - ret = node->value; - break; - } + if (node->ip_version == 6 && horrible_match_v6(node, ip)) + return node->value; } - return ret; + return NULL; +} + + +static __init void +horrible_allowedips_remove_by_value(struct horrible_allowedips *table, void *value) +{ + struct horrible_allowedips_node *node; + struct hlist_node *h; + + hlist_for_each_entry_safe(node, h, &table->head, table) { + if (node->value != value) + continue; + hlist_del(&node->table); + kfree(node); + } + } static __init bool randomized_test(void) @@ -397,23 +379,33 @@ static __init bool randomized_test(void) print_tree(t.root6, 128); } - for (i = 0; i < NUM_QUERIES; ++i) { - prandom_bytes(ip, 4); - if (lookup(t.root4, 32, ip) != - horrible_allowedips_lookup_v4(&h, (struct in_addr *)ip)) { - pr_err("allowedips random self-test: FAIL\n"); - goto free; + for (j = 0;; ++j) { + for (i = 0; i < NUM_QUERIES; ++i) { + prandom_bytes(ip, 4); + if (lookup(t.root4, 32, ip) != horrible_allowedips_lookup_v4(&h, (struct in_addr *)ip)) { + horrible_allowedips_lookup_v4(&h, (struct in_addr *)ip); + pr_err("allowedips random v4 self-test: FAIL\n"); + goto free; + } + prandom_bytes(ip, 16); + if (lookup(t.root6, 128, ip) != horrible_allowedips_lookup_v6(&h, (struct in6_addr *)ip)) { + pr_err("allowedips random v6 self-test: FAIL\n"); + goto free; + } } + if (j >= NUM_PEERS) + break; + mutex_lock(&mutex); + wg_allowedips_remove_by_peer(&t, peers[j], &mutex); + mutex_unlock(&mutex); + horrible_allowedips_remove_by_value(&h, peers[j]); } - for (i = 0; i < NUM_QUERIES; ++i) { - prandom_bytes(ip, 16); - if (lookup(t.root6, 128, ip) != - horrible_allowedips_lookup_v6(&h, (struct in6_addr *)ip)) { - pr_err("allowedips random self-test: FAIL\n"); - goto free; - } + if (t.root4 || t.root6) { + pr_err("allowedips random self-test removal: FAIL\n"); + goto free; } + ret = true; free: From dac53568c6ac4c4678e6c2f4e66314b99ec85f03 Mon Sep 17 00:00:00 2001 From: Pavel Skripkin Date: Thu, 3 Jun 2021 19:38:12 +0300 Subject: [PATCH 089/196] net: caif: added cfserl_release function commit bce130e7f392ddde8cfcb09927808ebd5f9c8669 upstream. Added cfserl_release() function. Cc: stable@vger.kernel.org Signed-off-by: Pavel Skripkin Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- include/net/caif/cfserl.h | 1 + net/caif/cfserl.c | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/include/net/caif/cfserl.h b/include/net/caif/cfserl.h index 14a55e03bb3c..67cce8757175 100644 --- a/include/net/caif/cfserl.h +++ b/include/net/caif/cfserl.h @@ -9,4 +9,5 @@ #include struct cflayer *cfserl_create(int instance, bool use_stx); +void cfserl_release(struct cflayer *layer); #endif diff --git a/net/caif/cfserl.c b/net/caif/cfserl.c index e11725a4bb0e..40cd57ad0a0f 100644 --- a/net/caif/cfserl.c +++ b/net/caif/cfserl.c @@ -31,6 +31,11 @@ static int cfserl_transmit(struct cflayer *layr, struct cfpkt *pkt); static void cfserl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl, int phyid); +void cfserl_release(struct cflayer *layer) +{ + kfree(layer); +} + struct cflayer *cfserl_create(int instance, bool use_stx) { struct cfserl *this = kzalloc(sizeof(struct cfserl), GFP_ATOMIC); From d6db727457dd29938524f04b301c83ac67cccb87 Mon Sep 17 00:00:00 2001 From: Pavel Skripkin Date: Thu, 3 Jun 2021 19:38:51 +0300 Subject: [PATCH 090/196] net: caif: add proper error handling commit a2805dca5107d5603f4bbc027e81e20d93476e96 upstream. caif_enroll_dev() can fail in some cases. Ingnoring these cases can lead to memory leak due to not assigning link_support pointer to anywhere. Fixes: 7c18d2205ea7 ("caif: Restructure how link caif link layer enroll") Cc: stable@vger.kernel.org Signed-off-by: Pavel Skripkin Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- include/net/caif/caif_dev.h | 2 +- include/net/caif/cfcnfg.h | 2 +- net/caif/caif_dev.c | 8 +++++--- net/caif/cfcnfg.c | 16 +++++++++++----- 4 files changed, 18 insertions(+), 10 deletions(-) diff --git a/include/net/caif/caif_dev.h b/include/net/caif/caif_dev.h index 48ecca8530ff..b655d8666f55 100644 --- a/include/net/caif/caif_dev.h +++ b/include/net/caif/caif_dev.h @@ -119,7 +119,7 @@ void caif_free_client(struct cflayer *adap_layer); * The link_support layer is used to add any Link Layer specific * framing. */ -void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev, +int caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev, struct cflayer *link_support, int head_room, struct cflayer **layer, int (**rcv_func)( struct sk_buff *, struct net_device *, diff --git a/include/net/caif/cfcnfg.h b/include/net/caif/cfcnfg.h index 2aa5e91d8457..8819ff4db35a 100644 --- a/include/net/caif/cfcnfg.h +++ b/include/net/caif/cfcnfg.h @@ -62,7 +62,7 @@ void cfcnfg_remove(struct cfcnfg *cfg); * @fcs: Specify if checksum is used in CAIF Framing Layer. * @head_room: Head space needed by link specific protocol. */ -void +int cfcnfg_add_phy_layer(struct cfcnfg *cnfg, struct net_device *dev, struct cflayer *phy_layer, enum cfcnfg_phy_preference pref, diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c index c10e5a55758d..fffbe41440b3 100644 --- a/net/caif/caif_dev.c +++ b/net/caif/caif_dev.c @@ -308,7 +308,7 @@ static void dev_flowctrl(struct net_device *dev, int on) caifd_put(caifd); } -void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev, +int caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev, struct cflayer *link_support, int head_room, struct cflayer **layer, int (**rcv_func)(struct sk_buff *, struct net_device *, @@ -319,11 +319,12 @@ void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev, enum cfcnfg_phy_preference pref; struct cfcnfg *cfg = get_cfcnfg(dev_net(dev)); struct caif_device_entry_list *caifdevs; + int res; caifdevs = caif_device_list(dev_net(dev)); caifd = caif_device_alloc(dev); if (!caifd) - return; + return -ENOMEM; *layer = &caifd->layer; spin_lock_init(&caifd->flow_lock); @@ -344,7 +345,7 @@ void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev, strlcpy(caifd->layer.name, dev->name, sizeof(caifd->layer.name)); caifd->layer.transmit = transmit; - cfcnfg_add_phy_layer(cfg, + res = cfcnfg_add_phy_layer(cfg, dev, &caifd->layer, pref, @@ -354,6 +355,7 @@ void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev, mutex_unlock(&caifdevs->lock); if (rcv_func) *rcv_func = receive; + return res; } EXPORT_SYMBOL(caif_enroll_dev); diff --git a/net/caif/cfcnfg.c b/net/caif/cfcnfg.c index 399239a14420..cac30e676ac9 100644 --- a/net/caif/cfcnfg.c +++ b/net/caif/cfcnfg.c @@ -450,7 +450,7 @@ unlock: rcu_read_unlock(); } -void +int cfcnfg_add_phy_layer(struct cfcnfg *cnfg, struct net_device *dev, struct cflayer *phy_layer, enum cfcnfg_phy_preference pref, @@ -459,7 +459,7 @@ cfcnfg_add_phy_layer(struct cfcnfg *cnfg, { struct cflayer *frml; struct cfcnfg_phyinfo *phyinfo = NULL; - int i; + int i, res = 0; u8 phyid; mutex_lock(&cnfg->lock); @@ -473,12 +473,15 @@ cfcnfg_add_phy_layer(struct cfcnfg *cnfg, goto got_phyid; } pr_warn("Too many CAIF Link Layers (max 6)\n"); + res = -EEXIST; goto out; got_phyid: phyinfo = kzalloc(sizeof(struct cfcnfg_phyinfo), GFP_ATOMIC); - if (!phyinfo) + if (!phyinfo) { + res = -ENOMEM; goto out_err; + } phy_layer->id = phyid; phyinfo->pref = pref; @@ -492,8 +495,10 @@ got_phyid: frml = cffrml_create(phyid, fcs); - if (!frml) + if (!frml) { + res = -ENOMEM; goto out_err; + } phyinfo->frm_layer = frml; layer_set_up(frml, cnfg->mux); @@ -511,11 +516,12 @@ got_phyid: list_add_rcu(&phyinfo->node, &cnfg->phys); out: mutex_unlock(&cnfg->lock); - return; + return res; out_err: kfree(phyinfo); mutex_unlock(&cnfg->lock); + return res; } EXPORT_SYMBOL(cfcnfg_add_phy_layer); From af2806345a37313f01b1c9f15e046745b8ee2daa Mon Sep 17 00:00:00 2001 From: Pavel Skripkin Date: Thu, 3 Jun 2021 19:39:11 +0300 Subject: [PATCH 091/196] net: caif: fix memory leak in caif_device_notify commit b53558a950a89824938e9811eddfc8efcd94e1bb upstream. In case of caif_enroll_dev() fail, allocated link_support won't be assigned to the corresponding structure. So simply free allocated pointer in case of error Fixes: 7c18d2205ea7 ("caif: Restructure how link caif link layer enroll") Cc: stable@vger.kernel.org Reported-and-tested-by: syzbot+7ec324747ce876a29db6@syzkaller.appspotmail.com Signed-off-by: Pavel Skripkin Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/caif/caif_dev.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c index fffbe41440b3..440139706130 100644 --- a/net/caif/caif_dev.c +++ b/net/caif/caif_dev.c @@ -370,6 +370,7 @@ static int caif_device_notify(struct notifier_block *me, unsigned long what, struct cflayer *layer, *link_support; int head_room = 0; struct caif_device_entry_list *caifdevs; + int res; cfg = get_cfcnfg(dev_net(dev)); caifdevs = caif_device_list(dev_net(dev)); @@ -395,8 +396,10 @@ static int caif_device_notify(struct notifier_block *me, unsigned long what, break; } } - caif_enroll_dev(dev, caifdev, link_support, head_room, + res = caif_enroll_dev(dev, caifdev, link_support, head_room, &layer, NULL); + if (res) + cfserl_release(link_support); caifdev->flowctrl = dev_flowctrl; break; From 46403c1f80b0d3f937ff9c4f5edc63bb64bc5051 Mon Sep 17 00:00:00 2001 From: Pavel Skripkin Date: Thu, 3 Jun 2021 19:39:35 +0300 Subject: [PATCH 092/196] net: caif: fix memory leak in cfusbl_device_notify commit 7f5d86669fa4d485523ddb1d212e0a2d90bd62bb upstream. In case of caif_enroll_dev() fail, allocated link_support won't be assigned to the corresponding structure. So simply free allocated pointer in case of error. Fixes: 7ad65bf68d70 ("caif: Add support for CAIF over CDC NCM USB interface") Cc: stable@vger.kernel.org Signed-off-by: Pavel Skripkin Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/caif/caif_usb.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/net/caif/caif_usb.c b/net/caif/caif_usb.c index a0116b9503d9..b02e1292f7f1 100644 --- a/net/caif/caif_usb.c +++ b/net/caif/caif_usb.c @@ -115,6 +115,11 @@ static struct cflayer *cfusbl_create(int phyid, u8 ethaddr[ETH_ALEN], return (struct cflayer *) this; } +static void cfusbl_release(struct cflayer *layer) +{ + kfree(layer); +} + static struct packet_type caif_usb_type __read_mostly = { .type = cpu_to_be16(ETH_P_802_EX1), }; @@ -127,6 +132,7 @@ static int cfusbl_device_notify(struct notifier_block *me, unsigned long what, struct cflayer *layer, *link_support; struct usbnet *usbnet; struct usb_device *usbdev; + int res; /* Check whether we have a NCM device, and find its VID/PID. */ if (!(dev->dev.parent && dev->dev.parent->driver && @@ -169,8 +175,11 @@ static int cfusbl_device_notify(struct notifier_block *me, unsigned long what, if (dev->num_tx_queues > 1) pr_warn("USB device uses more than one tx queue\n"); - caif_enroll_dev(dev, &common, link_support, CFUSB_MAX_HEADLEN, + res = caif_enroll_dev(dev, &common, link_support, CFUSB_MAX_HEADLEN, &layer, &caif_usb_type.func); + if (res) + goto err; + if (!pack_added) dev_add_pack(&caif_usb_type); pack_added = true; @@ -178,6 +187,9 @@ static int cfusbl_device_notify(struct notifier_block *me, unsigned long what, strlcpy(layer->name, dev->name, sizeof(layer->name)); return 0; +err: + cfusbl_release(link_support); + return res; } static struct notifier_block caif_device_notifier = { From a5e554f789815105ac5866f8fb133ab6a1566286 Mon Sep 17 00:00:00 2001 From: Johnny Chuang Date: Tue, 13 Apr 2021 09:20:50 +0800 Subject: [PATCH 093/196] HID: i2c-hid: Skip ELAN power-on command after reset commit ca66a6770bd9d6d99e469debd1c7363ac455daf9 upstream. For ELAN touchscreen, we found our boot code of IC was not flexible enough to receive and handle this command. Once the FW main code of our controller is crashed for some reason, the controller could not be enumerated successfully to be recognized by the system host. therefore, it lost touch functionality. Add quirk for skip send power-on command after reset. It will impact to ELAN touchscreen and touchpad on HID over I2C projects. Fixes: 43b7029f475e ("HID: i2c-hid: Send power-on command after reset"). Cc: stable@vger.kernel.org Signed-off-by: Johnny Chuang Reviewed-by: Harry Cutts Reviewed-by: Douglas Anderson Tested-by: Douglas Anderson Signed-off-by: Benjamin Tissoires Signed-off-by: Greg Kroah-Hartman --- drivers/hid/i2c-hid/i2c-hid-core.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c index 13bc59ed1d9e..1f08c848c33d 100644 --- a/drivers/hid/i2c-hid/i2c-hid-core.c +++ b/drivers/hid/i2c-hid/i2c-hid-core.c @@ -50,6 +50,7 @@ #define I2C_HID_QUIRK_BOGUS_IRQ BIT(4) #define I2C_HID_QUIRK_RESET_ON_RESUME BIT(5) #define I2C_HID_QUIRK_BAD_INPUT_SIZE BIT(6) +#define I2C_HID_QUIRK_NO_WAKEUP_AFTER_RESET BIT(7) /* flags */ @@ -183,6 +184,11 @@ static const struct i2c_hid_quirks { I2C_HID_QUIRK_RESET_ON_RESUME }, { USB_VENDOR_ID_ITE, I2C_DEVICE_ID_ITE_LENOVO_LEGION_Y720, I2C_HID_QUIRK_BAD_INPUT_SIZE }, + /* + * Sending the wakeup after reset actually break ELAN touchscreen controller + */ + { USB_VENDOR_ID_ELAN, HID_ANY_ID, + I2C_HID_QUIRK_NO_WAKEUP_AFTER_RESET }, { 0, 0 } }; @@ -466,7 +472,8 @@ static int i2c_hid_hwreset(struct i2c_client *client) } /* At least some SIS devices need this after reset */ - ret = i2c_hid_set_power(client, I2C_HID_PWR_ON); + if (!(ihid->quirks & I2C_HID_QUIRK_NO_WAKEUP_AFTER_RESET)) + ret = i2c_hid_set_power(client, I2C_HID_PWR_ON); out_unlock: mutex_unlock(&ihid->reset_lock); From b5d013c4c76b276890135b5d32803c4c63924b77 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 17 May 2021 12:04:30 +0200 Subject: [PATCH 094/196] HID: magicmouse: fix NULL-deref on disconnect commit 4b4f6cecca446abcb686c6e6c451d4f1ec1a7497 upstream. Commit 9d7b18668956 ("HID: magicmouse: add support for Apple Magic Trackpad 2") added a sanity check for an Apple trackpad but returned success instead of -ENODEV when the check failed. This means that the remove callback will dereference the never-initialised driver data pointer when the driver is later unbound (e.g. on USB disconnect). Reported-by: syzbot+ee6f6e2e68886ca256a8@syzkaller.appspotmail.com Fixes: 9d7b18668956 ("HID: magicmouse: add support for Apple Magic Trackpad 2") Cc: stable@vger.kernel.org # 4.20 Cc: Claudio Mettler Cc: Marek Wyborski Cc: Sean O'Brien Signed-off-by: Johan Hovold Signed-off-by: Jiri Kosina Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-magicmouse.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index abd86903875f..fc4c07459753 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -597,7 +597,7 @@ static int magicmouse_probe(struct hid_device *hdev, if (id->vendor == USB_VENDOR_ID_APPLE && id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2 && hdev->type != HID_TYPE_USBMOUSE) - return 0; + return -ENODEV; msc = devm_kzalloc(&hdev->dev, sizeof(*msc), GFP_KERNEL); if (msc == NULL) { From 127f25be2ff0fb3706adf4cf91a0e18c43b59885 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ahelenia=20Ziemia=C5=84ska?= Date: Mon, 8 Mar 2021 18:42:03 +0100 Subject: [PATCH 095/196] HID: multitouch: require Finger field to mark Win8 reports as MT MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit a2353e3b26012ff43bcdf81d37a3eaddd7ecdbf3 upstream. This effectively changes collection_is_mt from contact ID in report->field to (device is Win8 => collection is finger) && contact ID in report->field Some devices erroneously report Pen for fingers, and Win8 stylus-on-touchscreen devices report contact ID, but mark the accompanying touchscreen device's collection correctly Cc: stable@vger.kernel.org Signed-off-by: Ahelenia Ziemiańska Acked-by: Benjamin Tissoires Signed-off-by: Jiri Kosina Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-multitouch.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 8429ebe7097e..8580ace596c2 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -604,9 +604,13 @@ static struct mt_report_data *mt_allocate_report_data(struct mt_device *td, if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) continue; - for (n = 0; n < field->report_count; n++) { - if (field->usage[n].hid == HID_DG_CONTACTID) - rdata->is_mt_collection = true; + if (field->logical == HID_DG_FINGER || td->hdev->group != HID_GROUP_MULTITOUCH_WIN_8) { + for (n = 0; n < field->report_count; n++) { + if (field->usage[n].hid == HID_DG_CONTACTID) { + rdata->is_mt_collection = true; + break; + } + } } } From d11e5b96efde861e6c753c15e694f3ee34e7a513 Mon Sep 17 00:00:00 2001 From: Bob Peterson Date: Tue, 18 May 2021 09:12:10 -0400 Subject: [PATCH 096/196] gfs2: fix scheduling while atomic bug in glocks commit 20265d9a67e40eafd39a8884658ca2e36f05985d upstream. Before this patch, in the unlikely event that gfs2_glock_dq encountered a withdraw, it would do a wait_on_bit to wait for its journal to be recovered, but it never released the glock's spin_lock, which caused a scheduling-while-atomic error. This patch unlocks the lockref spin_lock before waiting for recovery. Fixes: 601ef0d52e96 ("gfs2: Force withdraw to replay journals and wait for it to finish") Cc: stable@vger.kernel.org # v5.7+ Reported-by: Alexander Aring Signed-off-by: Bob Peterson Signed-off-by: Andreas Gruenbacher Signed-off-by: Greg Kroah-Hartman --- fs/gfs2/glock.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 35a6fd103761..ea2f2de44806 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -1457,9 +1457,11 @@ void gfs2_glock_dq(struct gfs2_holder *gh) glock_blocked_by_withdraw(gl) && gh->gh_gl != sdp->sd_jinode_gl) { sdp->sd_glock_dqs_held++; + spin_unlock(&gl->gl_lockref.lock); might_sleep(); wait_on_bit(&sdp->sd_flags, SDF_WITHDRAW_RECOVERY, TASK_UNINTERRUPTIBLE); + spin_lock(&gl->gl_lockref.lock); } if (gh->gh_flags & GL_NOCACHE) handle_callback(gl, LM_ST_UNLOCKED, 0, false); From 029c06103e0ad669e6bec74f26b006198041326d Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 2 Jun 2021 13:38:23 +0200 Subject: [PATCH 097/196] ALSA: timer: Fix master timer notification commit 9c1fe96bded935369f8340c2ac2e9e189f697d5d upstream. snd_timer_notify1() calls the notification to each slave for a master event, but it passes a wrong event number. It should be +10 offset, corresponding to SNDRV_TIMER_EVENT_MXXX, but it's incorrectly with +100 offset. Casually this was spotted by UBSAN check via syzkaller. Reported-by: syzbot+d102fa5b35335a7e544e@syzkaller.appspotmail.com Reviewed-by: Jaroslav Kysela Cc: Link: https://lore.kernel.org/r/000000000000e5560e05c3bd1d63@google.com Link: https://lore.kernel.org/r/20210602113823.23777-1-tiwai@suse.de Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/core/timer.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/core/timer.c b/sound/core/timer.c index 765ea66665a8..c15c8314671b 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -520,9 +520,10 @@ static void snd_timer_notify1(struct snd_timer_instance *ti, int event) return; if (timer->hw.flags & SNDRV_TIMER_HW_SLAVE) return; + event += 10; /* convert to SNDRV_TIMER_EVENT_MXXX */ list_for_each_entry(ts, &ti->slave_active_head, active_list) if (ts->ccallback) - ts->ccallback(ts, event + 100, &tstamp, resolution); + ts->ccallback(ts, event, &tstamp, resolution); } /* start/continue a master timer */ From cfbb57fcb1808d42a410339d7d81936c91abbbf5 Mon Sep 17 00:00:00 2001 From: Carlos M Date: Mon, 31 May 2021 22:20:26 +0200 Subject: [PATCH 098/196] ALSA: hda: Fix for mute key LED for HP Pavilion 15-CK0xx commit 901be145a46eb79879367d853194346a549e623d upstream. For the HP Pavilion 15-CK0xx, with audio subsystem ID 0x103c:0x841c, adding a line in patch_realtek.c to apply the ALC269_FIXUP_HP_MUTE_LED_MIC3 fix activates the mute key LED. Signed-off-by: Carlos M Cc: Link: https://lore.kernel.org/r/20210531202026.35427-1-carlos.marr.pz@gmail.com Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/patch_realtek.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index d8424d226714..cc13a68197f3 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -8289,6 +8289,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x103c, 0x82bf, "HP G3 mini", ALC221_FIXUP_HP_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x103c, 0x82c0, "HP G3 mini premium", ALC221_FIXUP_HP_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x103c, 0x83b9, "HP Spectre x360", ALC269_FIXUP_HP_MUTE_LED_MIC3), + SND_PCI_QUIRK(0x103c, 0x841c, "HP Pavilion 15-CK0xx", ALC269_FIXUP_HP_MUTE_LED_MIC3), SND_PCI_QUIRK(0x103c, 0x8497, "HP Envy x360", ALC269_FIXUP_HP_MUTE_LED_MIC3), SND_PCI_QUIRK(0x103c, 0x84da, "HP OMEN dc0019-ur", ALC295_FIXUP_HP_OMEN), SND_PCI_QUIRK(0x103c, 0x84e7, "HP Pavilion 15", ALC269_FIXUP_HP_MUTE_LED_MIC3), From 846848c0520f3391a2ef41c90f26ebef858971af Mon Sep 17 00:00:00 2001 From: Hui Wang Date: Wed, 2 Jun 2021 22:54:24 +0800 Subject: [PATCH 099/196] ALSA: hda: update the power_state during the direct-complete commit b8b90c17602689eeaa5b219d104bbc215d1225cc upstream. The patch_realtek.c needs to check if the power_state.event equals PM_EVENT_SUSPEND, after using the direct-complete, the suspend() and resume() will be skipped if the codec is already rt_suspended, in this case, the patch_realtek.c will always get PM_EVENT_ON even the system is really resumed from S3. We could set power_state to PMSG_SUSPEND in the prepare(), if other PM functions are called before complete(), those functions will override power_state; if no other PM functions are called before complete(), we could know the suspend() and resume() are skipped since only S3 pm functions could be skipped by direct-complete, in this case set power_state to PMSG_RESUME in the complete(). This could guarantee the first time of calling hda_codec_runtime_resume() after complete() has the correct power_state. Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization") Cc: Signed-off-by: Hui Wang Link: https://lore.kernel.org/r/20210602145424.3132-1-hui.wang@canonical.com Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/hda_codec.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index eec1775dfffe..4cec1bd77e6f 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2973,6 +2973,7 @@ static int hda_codec_runtime_resume(struct device *dev) #ifdef CONFIG_PM_SLEEP static int hda_codec_pm_prepare(struct device *dev) { + dev->power.power_state = PMSG_SUSPEND; return pm_runtime_suspended(dev); } @@ -2980,6 +2981,10 @@ static void hda_codec_pm_complete(struct device *dev) { struct hda_codec *codec = dev_to_hda_codec(dev); + /* If no other pm-functions are called between prepare() and complete() */ + if (dev->power.power_state.event == PM_EVENT_SUSPEND) + dev->power.power_state = PMSG_RESUME; + if (pm_runtime_suspended(dev) && (codec->jackpoll_interval || hda_codec_need_resume(codec) || codec->forced_resume)) pm_request_resume(dev); From 623603e255aa00642a9d3327a652639407eb0501 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michal=20Vok=C3=A1=C4=8D?= Date: Tue, 13 Apr 2021 16:45:57 +0200 Subject: [PATCH 100/196] ARM: dts: imx6dl-yapp4: Fix RGMII connection to QCA8334 switch MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 0e4a4a08cd78efcaddbc2e4c5ed86b5a5cb8a15e upstream. The FEC does not have a PHY so it should not have a phy-handle. It is connected to the switch at RGMII level so we need a fixed-link sub-node on both ends. This was not a problem until the qca8k.c driver was converted to PHYLINK by commit b3591c2a3661 ("net: dsa: qca8k: Switch to PHYLINK instead of PHYLIB"). That commit revealed the FEC configuration was not correct. Fixes: 87489ec3a77f ("ARM: dts: imx: Add Y Soft IOTA Draco, Hydra and Ursa boards") Cc: stable@vger.kernel.org Signed-off-by: Michal Vokáč Reviewed-by: Andrew Lunn Signed-off-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman --- arch/arm/boot/dts/imx6dl-yapp4-common.dtsi | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi index 7d2c72562c73..9148a01ed6d9 100644 --- a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi +++ b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi @@ -105,9 +105,13 @@ phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>; phy-reset-duration = <20>; phy-supply = <&sw2_reg>; - phy-handle = <ðphy0>; status = "okay"; + fixed-link { + speed = <1000>; + full-duplex; + }; + mdio { #address-cells = <1>; #size-cells = <0>; From b2057d138f1b1141e00fdd9bee364bb8438cf223 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 26 Apr 2021 12:23:21 +0200 Subject: [PATCH 101/196] ARM: dts: imx6q-dhcom: Add PU,VDD1P1,VDD2P5 regulators commit 8967b27a6c1c19251989c7ab33c058d16e4a5f53 upstream. Per schematic, both PU and SOC regulator are supplied from LTC3676 SW1 via VDDSOC_IN rail, add the PU input. Both VDD1P1, VDD2P5 are supplied from LTC3676 SW2 via VDDHIGH_IN rail, add both inputs. While no instability or problems are currently observed, the regulators should be fully described in DT and that description should fully match the hardware, else this might lead to unforseen issues later. Fix this. Fixes: 52c7a088badd ("ARM: dts: imx6q: Add support for the DHCOM iMX6 SoM and PDK2") Reviewed-by: Fabio Estevam Signed-off-by: Marek Vasut Cc: Christoph Niedermaier Cc: Fabio Estevam Cc: Ludwig Zenz Cc: NXP Linux Team Cc: Shawn Guo Cc: stable@vger.kernel.org Reviewed-by: Christoph Niedermaier Signed-off-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman --- arch/arm/boot/dts/imx6q-dhcom-som.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi index 236fc205c389..d0768ae429fa 100644 --- a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi +++ b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi @@ -406,6 +406,18 @@ vin-supply = <&sw1_reg>; }; +®_pu { + vin-supply = <&sw1_reg>; +}; + +®_vdd1p1 { + vin-supply = <&sw2_reg>; +}; + +®_vdd2p5 { + vin-supply = <&sw2_reg>; +}; + &uart1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart1>; From 01d349a481f0591230300a9171330136f9159bcd Mon Sep 17 00:00:00 2001 From: Alexey Makhalov Date: Fri, 21 May 2021 07:55:33 +0000 Subject: [PATCH 102/196] ext4: fix memory leak in ext4_fill_super commit afd09b617db3786b6ef3dc43e28fe728cfea84df upstream. Buffer head references must be released before calling kill_bdev(); otherwise the buffer head (and its page referenced by b_data) will not be freed by kill_bdev, and subsequently that bh will be leaked. If blocksizes differ, sb_set_blocksize() will kill current buffers and page cache by using kill_bdev(). And then super block will be reread again but using correct blocksize this time. sb_set_blocksize() didn't fully free superblock page and buffer head, and being busy, they were not freed and instead leaked. This can easily be reproduced by calling an infinite loop of: systemctl start .mount, and systemctl stop .mount ... since systemd creates a cgroup for each slice which it mounts, and the bh leak get amplified by a dying memory cgroup that also never gets freed, and memory consumption is much more easily noticed. Fixes: ce40733ce93d ("ext4: Check for return value from sb_set_blocksize") Fixes: ac27a0ec112a ("ext4: initial copy of files from ext3") Link: https://lore.kernel.org/r/20210521075533.95732-1-amakhalov@vmware.com Signed-off-by: Alexey Makhalov Signed-off-by: Theodore Ts'o Cc: stable@kernel.org Signed-off-by: Greg Kroah-Hartman --- fs/ext4/super.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index c7f5b665834f..21c4ba2513ce 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -4451,14 +4451,20 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) } if (sb->s_blocksize != blocksize) { + /* + * bh must be released before kill_bdev(), otherwise + * it won't be freed and its page also. kill_bdev() + * is called by sb_set_blocksize(). + */ + brelse(bh); /* Validate the filesystem blocksize */ if (!sb_set_blocksize(sb, blocksize)) { ext4_msg(sb, KERN_ERR, "bad block size %d", blocksize); + bh = NULL; goto failed_mount; } - brelse(bh); logical_sb_block = sb_block * EXT4_MIN_BLOCK_SIZE; offset = do_div(logical_sb_block, blocksize); bh = ext4_sb_bread_unmovable(sb, logical_sb_block); @@ -5181,8 +5187,9 @@ failed_mount: kfree(get_qf_name(sb, sbi, i)); #endif fscrypt_free_dummy_policy(&sbi->s_dummy_enc_policy); - ext4_blkdev_remove(sbi); + /* ext4_blkdev_remove() calls kill_bdev(), release bh before it. */ brelse(bh); + ext4_blkdev_remove(sbi); out_fail: sb->s_fs_info = NULL; kfree(sbi->s_blockgroup_lock); From d3b668b96ad3192c0581a248ae2f596cd054792a Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Thu, 6 May 2021 22:10:42 +0800 Subject: [PATCH 103/196] ext4: fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed commit 082cd4ec240b8734a82a89ffb890216ac98fec68 upstream. We got follow bug_on when run fsstress with injecting IO fault: [130747.323114] kernel BUG at fs/ext4/extents_status.c:762! [130747.323117] Internal error: Oops - BUG: 0 [#1] SMP ...... [130747.334329] Call trace: [130747.334553] ext4_es_cache_extent+0x150/0x168 [ext4] [130747.334975] ext4_cache_extents+0x64/0xe8 [ext4] [130747.335368] ext4_find_extent+0x300/0x330 [ext4] [130747.335759] ext4_ext_map_blocks+0x74/0x1178 [ext4] [130747.336179] ext4_map_blocks+0x2f4/0x5f0 [ext4] [130747.336567] ext4_mpage_readpages+0x4a8/0x7a8 [ext4] [130747.336995] ext4_readpage+0x54/0x100 [ext4] [130747.337359] generic_file_buffered_read+0x410/0xae8 [130747.337767] generic_file_read_iter+0x114/0x190 [130747.338152] ext4_file_read_iter+0x5c/0x140 [ext4] [130747.338556] __vfs_read+0x11c/0x188 [130747.338851] vfs_read+0x94/0x150 [130747.339110] ksys_read+0x74/0xf0 This patch's modification is according to Jan Kara's suggestion in: https://patchwork.ozlabs.org/project/linux-ext4/patch/20210428085158.3728201-1-yebin10@huawei.com/ "I see. Now I understand your patch. Honestly, seeing how fragile is trying to fix extent tree after split has failed in the middle, I would probably go even further and make sure we fix the tree properly in case of ENOSPC and EDQUOT (those are easily user triggerable). Anything else indicates a HW problem or fs corruption so I'd rather leave the extent tree as is and don't try to fix it (which also means we will not create overlapping extents)." Cc: stable@kernel.org Signed-off-by: Ye Bin Reviewed-by: Jan Kara Link: https://lore.kernel.org/r/20210506141042.3298679-1-yebin10@huawei.com Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman --- fs/ext4/extents.c | 43 +++++++++++++++++++++++-------------------- 1 file changed, 23 insertions(+), 20 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 12eac8837303..e6542ba26433 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3206,7 +3206,10 @@ static int ext4_split_extent_at(handle_t *handle, ext4_ext_mark_unwritten(ex2); err = ext4_ext_insert_extent(handle, inode, ppath, &newex, flags); - if (err == -ENOSPC && (EXT4_EXT_MAY_ZEROOUT & split_flag)) { + if (err != -ENOSPC && err != -EDQUOT) + goto out; + + if (EXT4_EXT_MAY_ZEROOUT & split_flag) { if (split_flag & (EXT4_EXT_DATA_VALID1|EXT4_EXT_DATA_VALID2)) { if (split_flag & EXT4_EXT_DATA_VALID1) { err = ext4_ext_zeroout(inode, ex2); @@ -3232,25 +3235,22 @@ static int ext4_split_extent_at(handle_t *handle, ext4_ext_pblock(&orig_ex)); } - if (err) - goto fix_extent_len; - /* update the extent length and mark as initialized */ - ex->ee_len = cpu_to_le16(ee_len); - ext4_ext_try_to_merge(handle, inode, path, ex); - err = ext4_ext_dirty(handle, inode, path + path->p_depth); - if (err) - goto fix_extent_len; - - /* update extent status tree */ - err = ext4_zeroout_es(inode, &zero_ex); - - goto out; - } else if (err) - goto fix_extent_len; - -out: - ext4_ext_show_leaf(inode, path); - return err; + if (!err) { + /* update the extent length and mark as initialized */ + ex->ee_len = cpu_to_le16(ee_len); + ext4_ext_try_to_merge(handle, inode, path, ex); + err = ext4_ext_dirty(handle, inode, path + path->p_depth); + if (!err) + /* update extent status tree */ + err = ext4_zeroout_es(inode, &zero_ex); + /* If we failed at this point, we don't know in which + * state the extent tree exactly is so don't try to fix + * length of the original extent as it may do even more + * damage. + */ + goto out; + } + } fix_extent_len: ex->ee_len = orig_ex.ee_len; @@ -3260,6 +3260,9 @@ fix_extent_len: */ ext4_ext_dirty(handle, inode, path + path->p_depth); return err; +out: + ext4_ext_show_leaf(inode, path); + return err; } /* From fb86acc6236934e2b654f50d2a97fa77eac17859 Mon Sep 17 00:00:00 2001 From: Harshad Shirwadkar Date: Wed, 19 May 2021 14:59:20 -0700 Subject: [PATCH 104/196] ext4: fix fast commit alignment issues commit a7ba36bc94f20b6c77f16364b9a23f582ea8faac upstream. Fast commit recovery data on disk may not be aligned. So, when the recovery code reads it, this patch makes sure that fast commit info found on-disk is first memcpy-ed into an aligned variable before accessing it. As a consequence of it, we also remove some macros that could resulted in unaligned accesses. Cc: stable@kernel.org Fixes: 8016e29f4362 ("ext4: fast commit recovery path") Signed-off-by: Harshad Shirwadkar Link: https://lore.kernel.org/r/20210519215920.2037527-1-harshads@google.com Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman --- fs/ext4/fast_commit.c | 182 +++++++++++++++++++++--------------------- fs/ext4/fast_commit.h | 7 -- 2 files changed, 90 insertions(+), 99 deletions(-) diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c index 896e1176e044..53647fa03877 100644 --- a/fs/ext4/fast_commit.c +++ b/fs/ext4/fast_commit.c @@ -1227,18 +1227,6 @@ static void ext4_fc_cleanup(journal_t *journal, int full) /* Ext4 Replay Path Routines */ -/* Get length of a particular tlv */ -static inline int ext4_fc_tag_len(struct ext4_fc_tl *tl) -{ - return le16_to_cpu(tl->fc_len); -} - -/* Get a pointer to "value" of a tlv */ -static inline u8 *ext4_fc_tag_val(struct ext4_fc_tl *tl) -{ - return (u8 *)tl + sizeof(*tl); -} - /* Helper struct for dentry replay routines */ struct dentry_info_args { int parent_ino, dname_len, ino, inode_len; @@ -1246,28 +1234,29 @@ struct dentry_info_args { }; static inline void tl_to_darg(struct dentry_info_args *darg, - struct ext4_fc_tl *tl) + struct ext4_fc_tl *tl, u8 *val) { - struct ext4_fc_dentry_info *fcd; + struct ext4_fc_dentry_info fcd; - fcd = (struct ext4_fc_dentry_info *)ext4_fc_tag_val(tl); + memcpy(&fcd, val, sizeof(fcd)); - darg->parent_ino = le32_to_cpu(fcd->fc_parent_ino); - darg->ino = le32_to_cpu(fcd->fc_ino); - darg->dname = fcd->fc_dname; - darg->dname_len = ext4_fc_tag_len(tl) - - sizeof(struct ext4_fc_dentry_info); + darg->parent_ino = le32_to_cpu(fcd.fc_parent_ino); + darg->ino = le32_to_cpu(fcd.fc_ino); + darg->dname = val + offsetof(struct ext4_fc_dentry_info, fc_dname); + darg->dname_len = le16_to_cpu(tl->fc_len) - + sizeof(struct ext4_fc_dentry_info); } /* Unlink replay function */ -static int ext4_fc_replay_unlink(struct super_block *sb, struct ext4_fc_tl *tl) +static int ext4_fc_replay_unlink(struct super_block *sb, struct ext4_fc_tl *tl, + u8 *val) { struct inode *inode, *old_parent; struct qstr entry; struct dentry_info_args darg; int ret = 0; - tl_to_darg(&darg, tl); + tl_to_darg(&darg, tl, val); trace_ext4_fc_replay(sb, EXT4_FC_TAG_UNLINK, darg.ino, darg.parent_ino, darg.dname_len); @@ -1357,13 +1346,14 @@ out: } /* Link replay function */ -static int ext4_fc_replay_link(struct super_block *sb, struct ext4_fc_tl *tl) +static int ext4_fc_replay_link(struct super_block *sb, struct ext4_fc_tl *tl, + u8 *val) { struct inode *inode; struct dentry_info_args darg; int ret = 0; - tl_to_darg(&darg, tl); + tl_to_darg(&darg, tl, val); trace_ext4_fc_replay(sb, EXT4_FC_TAG_LINK, darg.ino, darg.parent_ino, darg.dname_len); @@ -1408,9 +1398,10 @@ static int ext4_fc_record_modified_inode(struct super_block *sb, int ino) /* * Inode replay function */ -static int ext4_fc_replay_inode(struct super_block *sb, struct ext4_fc_tl *tl) +static int ext4_fc_replay_inode(struct super_block *sb, struct ext4_fc_tl *tl, + u8 *val) { - struct ext4_fc_inode *fc_inode; + struct ext4_fc_inode fc_inode; struct ext4_inode *raw_inode; struct ext4_inode *raw_fc_inode; struct inode *inode = NULL; @@ -1418,9 +1409,9 @@ static int ext4_fc_replay_inode(struct super_block *sb, struct ext4_fc_tl *tl) int inode_len, ino, ret, tag = le16_to_cpu(tl->fc_tag); struct ext4_extent_header *eh; - fc_inode = (struct ext4_fc_inode *)ext4_fc_tag_val(tl); + memcpy(&fc_inode, val, sizeof(fc_inode)); - ino = le32_to_cpu(fc_inode->fc_ino); + ino = le32_to_cpu(fc_inode.fc_ino); trace_ext4_fc_replay(sb, tag, ino, 0, 0); inode = ext4_iget(sb, ino, EXT4_IGET_NORMAL); @@ -1432,12 +1423,13 @@ static int ext4_fc_replay_inode(struct super_block *sb, struct ext4_fc_tl *tl) ext4_fc_record_modified_inode(sb, ino); - raw_fc_inode = (struct ext4_inode *)fc_inode->fc_raw_inode; + raw_fc_inode = (struct ext4_inode *) + (val + offsetof(struct ext4_fc_inode, fc_raw_inode)); ret = ext4_get_fc_inode_loc(sb, ino, &iloc); if (ret) goto out; - inode_len = ext4_fc_tag_len(tl) - sizeof(struct ext4_fc_inode); + inode_len = le16_to_cpu(tl->fc_len) - sizeof(struct ext4_fc_inode); raw_inode = ext4_raw_inode(&iloc); memcpy(raw_inode, raw_fc_inode, offsetof(struct ext4_inode, i_block)); @@ -1505,14 +1497,15 @@ out: * inode for which we are trying to create a dentry here, should already have * been replayed before we start here. */ -static int ext4_fc_replay_create(struct super_block *sb, struct ext4_fc_tl *tl) +static int ext4_fc_replay_create(struct super_block *sb, struct ext4_fc_tl *tl, + u8 *val) { int ret = 0; struct inode *inode = NULL; struct inode *dir = NULL; struct dentry_info_args darg; - tl_to_darg(&darg, tl); + tl_to_darg(&darg, tl, val); trace_ext4_fc_replay(sb, EXT4_FC_TAG_CREAT, darg.ino, darg.parent_ino, darg.dname_len); @@ -1591,9 +1584,9 @@ static int ext4_fc_record_regions(struct super_block *sb, int ino, /* Replay add range tag */ static int ext4_fc_replay_add_range(struct super_block *sb, - struct ext4_fc_tl *tl) + struct ext4_fc_tl *tl, u8 *val) { - struct ext4_fc_add_range *fc_add_ex; + struct ext4_fc_add_range fc_add_ex; struct ext4_extent newex, *ex; struct inode *inode; ext4_lblk_t start, cur; @@ -1603,15 +1596,14 @@ static int ext4_fc_replay_add_range(struct super_block *sb, struct ext4_ext_path *path = NULL; int ret; - fc_add_ex = (struct ext4_fc_add_range *)ext4_fc_tag_val(tl); - ex = (struct ext4_extent *)&fc_add_ex->fc_ex; + memcpy(&fc_add_ex, val, sizeof(fc_add_ex)); + ex = (struct ext4_extent *)&fc_add_ex.fc_ex; trace_ext4_fc_replay(sb, EXT4_FC_TAG_ADD_RANGE, - le32_to_cpu(fc_add_ex->fc_ino), le32_to_cpu(ex->ee_block), + le32_to_cpu(fc_add_ex.fc_ino), le32_to_cpu(ex->ee_block), ext4_ext_get_actual_len(ex)); - inode = ext4_iget(sb, le32_to_cpu(fc_add_ex->fc_ino), - EXT4_IGET_NORMAL); + inode = ext4_iget(sb, le32_to_cpu(fc_add_ex.fc_ino), EXT4_IGET_NORMAL); if (IS_ERR(inode)) { jbd_debug(1, "Inode not found."); return 0; @@ -1720,32 +1712,33 @@ next: /* Replay DEL_RANGE tag */ static int -ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl) +ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl, + u8 *val) { struct inode *inode; - struct ext4_fc_del_range *lrange; + struct ext4_fc_del_range lrange; struct ext4_map_blocks map; ext4_lblk_t cur, remaining; int ret; - lrange = (struct ext4_fc_del_range *)ext4_fc_tag_val(tl); - cur = le32_to_cpu(lrange->fc_lblk); - remaining = le32_to_cpu(lrange->fc_len); + memcpy(&lrange, val, sizeof(lrange)); + cur = le32_to_cpu(lrange.fc_lblk); + remaining = le32_to_cpu(lrange.fc_len); trace_ext4_fc_replay(sb, EXT4_FC_TAG_DEL_RANGE, - le32_to_cpu(lrange->fc_ino), cur, remaining); + le32_to_cpu(lrange.fc_ino), cur, remaining); - inode = ext4_iget(sb, le32_to_cpu(lrange->fc_ino), EXT4_IGET_NORMAL); + inode = ext4_iget(sb, le32_to_cpu(lrange.fc_ino), EXT4_IGET_NORMAL); if (IS_ERR(inode)) { - jbd_debug(1, "Inode %d not found", le32_to_cpu(lrange->fc_ino)); + jbd_debug(1, "Inode %d not found", le32_to_cpu(lrange.fc_ino)); return 0; } ret = ext4_fc_record_modified_inode(sb, inode->i_ino); jbd_debug(1, "DEL_RANGE, inode %ld, lblk %d, len %d\n", - inode->i_ino, le32_to_cpu(lrange->fc_lblk), - le32_to_cpu(lrange->fc_len)); + inode->i_ino, le32_to_cpu(lrange.fc_lblk), + le32_to_cpu(lrange.fc_len)); while (remaining > 0) { map.m_lblk = cur; map.m_len = remaining; @@ -1766,8 +1759,8 @@ ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl) } ret = ext4_punch_hole(inode, - le32_to_cpu(lrange->fc_lblk) << sb->s_blocksize_bits, - le32_to_cpu(lrange->fc_len) << sb->s_blocksize_bits); + le32_to_cpu(lrange.fc_lblk) << sb->s_blocksize_bits, + le32_to_cpu(lrange.fc_len) << sb->s_blocksize_bits); if (ret) jbd_debug(1, "ext4_punch_hole returned %d", ret); ext4_ext_replay_shrink_inode(inode, @@ -1909,11 +1902,11 @@ static int ext4_fc_replay_scan(journal_t *journal, struct ext4_sb_info *sbi = EXT4_SB(sb); struct ext4_fc_replay_state *state; int ret = JBD2_FC_REPLAY_CONTINUE; - struct ext4_fc_add_range *ext; - struct ext4_fc_tl *tl; - struct ext4_fc_tail *tail; - __u8 *start, *end; - struct ext4_fc_head *head; + struct ext4_fc_add_range ext; + struct ext4_fc_tl tl; + struct ext4_fc_tail tail; + __u8 *start, *end, *cur, *val; + struct ext4_fc_head head; struct ext4_extent *ex; state = &sbi->s_fc_replay_state; @@ -1940,15 +1933,17 @@ static int ext4_fc_replay_scan(journal_t *journal, } state->fc_replay_expected_off++; - fc_for_each_tl(start, end, tl) { + for (cur = start; cur < end; cur = cur + sizeof(tl) + le16_to_cpu(tl.fc_len)) { + memcpy(&tl, cur, sizeof(tl)); + val = cur + sizeof(tl); jbd_debug(3, "Scan phase, tag:%s, blk %lld\n", - tag2str(le16_to_cpu(tl->fc_tag)), bh->b_blocknr); - switch (le16_to_cpu(tl->fc_tag)) { + tag2str(le16_to_cpu(tl.fc_tag)), bh->b_blocknr); + switch (le16_to_cpu(tl.fc_tag)) { case EXT4_FC_TAG_ADD_RANGE: - ext = (struct ext4_fc_add_range *)ext4_fc_tag_val(tl); - ex = (struct ext4_extent *)&ext->fc_ex; + memcpy(&ext, val, sizeof(ext)); + ex = (struct ext4_extent *)&ext.fc_ex; ret = ext4_fc_record_regions(sb, - le32_to_cpu(ext->fc_ino), + le32_to_cpu(ext.fc_ino), le32_to_cpu(ex->ee_block), ext4_ext_pblock(ex), ext4_ext_get_actual_len(ex)); if (ret < 0) @@ -1962,18 +1957,18 @@ static int ext4_fc_replay_scan(journal_t *journal, case EXT4_FC_TAG_INODE: case EXT4_FC_TAG_PAD: state->fc_cur_tag++; - state->fc_crc = ext4_chksum(sbi, state->fc_crc, tl, - sizeof(*tl) + ext4_fc_tag_len(tl)); + state->fc_crc = ext4_chksum(sbi, state->fc_crc, cur, + sizeof(tl) + le16_to_cpu(tl.fc_len)); break; case EXT4_FC_TAG_TAIL: state->fc_cur_tag++; - tail = (struct ext4_fc_tail *)ext4_fc_tag_val(tl); - state->fc_crc = ext4_chksum(sbi, state->fc_crc, tl, - sizeof(*tl) + + memcpy(&tail, val, sizeof(tail)); + state->fc_crc = ext4_chksum(sbi, state->fc_crc, cur, + sizeof(tl) + offsetof(struct ext4_fc_tail, fc_crc)); - if (le32_to_cpu(tail->fc_tid) == expected_tid && - le32_to_cpu(tail->fc_crc) == state->fc_crc) { + if (le32_to_cpu(tail.fc_tid) == expected_tid && + le32_to_cpu(tail.fc_crc) == state->fc_crc) { state->fc_replay_num_tags = state->fc_cur_tag; state->fc_regions_valid = state->fc_regions_used; @@ -1984,19 +1979,19 @@ static int ext4_fc_replay_scan(journal_t *journal, state->fc_crc = 0; break; case EXT4_FC_TAG_HEAD: - head = (struct ext4_fc_head *)ext4_fc_tag_val(tl); - if (le32_to_cpu(head->fc_features) & + memcpy(&head, val, sizeof(head)); + if (le32_to_cpu(head.fc_features) & ~EXT4_FC_SUPPORTED_FEATURES) { ret = -EOPNOTSUPP; break; } - if (le32_to_cpu(head->fc_tid) != expected_tid) { + if (le32_to_cpu(head.fc_tid) != expected_tid) { ret = JBD2_FC_REPLAY_STOP; break; } state->fc_cur_tag++; - state->fc_crc = ext4_chksum(sbi, state->fc_crc, tl, - sizeof(*tl) + ext4_fc_tag_len(tl)); + state->fc_crc = ext4_chksum(sbi, state->fc_crc, cur, + sizeof(tl) + le16_to_cpu(tl.fc_len)); break; default: ret = state->fc_replay_num_tags ? @@ -2020,11 +2015,11 @@ static int ext4_fc_replay(journal_t *journal, struct buffer_head *bh, { struct super_block *sb = journal->j_private; struct ext4_sb_info *sbi = EXT4_SB(sb); - struct ext4_fc_tl *tl; - __u8 *start, *end; + struct ext4_fc_tl tl; + __u8 *start, *end, *cur, *val; int ret = JBD2_FC_REPLAY_CONTINUE; struct ext4_fc_replay_state *state = &sbi->s_fc_replay_state; - struct ext4_fc_tail *tail; + struct ext4_fc_tail tail; if (pass == PASS_SCAN) { state->fc_current_pass = PASS_SCAN; @@ -2051,49 +2046,52 @@ static int ext4_fc_replay(journal_t *journal, struct buffer_head *bh, start = (u8 *)bh->b_data; end = (__u8 *)bh->b_data + journal->j_blocksize - 1; - fc_for_each_tl(start, end, tl) { + for (cur = start; cur < end; cur = cur + sizeof(tl) + le16_to_cpu(tl.fc_len)) { + memcpy(&tl, cur, sizeof(tl)); + val = cur + sizeof(tl); + if (state->fc_replay_num_tags == 0) { ret = JBD2_FC_REPLAY_STOP; ext4_fc_set_bitmaps_and_counters(sb); break; } jbd_debug(3, "Replay phase, tag:%s\n", - tag2str(le16_to_cpu(tl->fc_tag))); + tag2str(le16_to_cpu(tl.fc_tag))); state->fc_replay_num_tags--; - switch (le16_to_cpu(tl->fc_tag)) { + switch (le16_to_cpu(tl.fc_tag)) { case EXT4_FC_TAG_LINK: - ret = ext4_fc_replay_link(sb, tl); + ret = ext4_fc_replay_link(sb, &tl, val); break; case EXT4_FC_TAG_UNLINK: - ret = ext4_fc_replay_unlink(sb, tl); + ret = ext4_fc_replay_unlink(sb, &tl, val); break; case EXT4_FC_TAG_ADD_RANGE: - ret = ext4_fc_replay_add_range(sb, tl); + ret = ext4_fc_replay_add_range(sb, &tl, val); break; case EXT4_FC_TAG_CREAT: - ret = ext4_fc_replay_create(sb, tl); + ret = ext4_fc_replay_create(sb, &tl, val); break; case EXT4_FC_TAG_DEL_RANGE: - ret = ext4_fc_replay_del_range(sb, tl); + ret = ext4_fc_replay_del_range(sb, &tl, val); break; case EXT4_FC_TAG_INODE: - ret = ext4_fc_replay_inode(sb, tl); + ret = ext4_fc_replay_inode(sb, &tl, val); break; case EXT4_FC_TAG_PAD: trace_ext4_fc_replay(sb, EXT4_FC_TAG_PAD, 0, - ext4_fc_tag_len(tl), 0); + le16_to_cpu(tl.fc_len), 0); break; case EXT4_FC_TAG_TAIL: trace_ext4_fc_replay(sb, EXT4_FC_TAG_TAIL, 0, - ext4_fc_tag_len(tl), 0); - tail = (struct ext4_fc_tail *)ext4_fc_tag_val(tl); - WARN_ON(le32_to_cpu(tail->fc_tid) != expected_tid); + le16_to_cpu(tl.fc_len), 0); + memcpy(&tail, val, sizeof(tail)); + WARN_ON(le32_to_cpu(tail.fc_tid) != expected_tid); break; case EXT4_FC_TAG_HEAD: break; default: - trace_ext4_fc_replay(sb, le16_to_cpu(tl->fc_tag), 0, - ext4_fc_tag_len(tl), 0); + trace_ext4_fc_replay(sb, le16_to_cpu(tl.fc_tag), 0, + le16_to_cpu(tl.fc_len), 0); ret = -ECANCELED; break; } diff --git a/fs/ext4/fast_commit.h b/fs/ext4/fast_commit.h index 3a6e5a1fa1b8..d8d0998a5c16 100644 --- a/fs/ext4/fast_commit.h +++ b/fs/ext4/fast_commit.h @@ -146,12 +146,5 @@ struct ext4_fc_replay_state { #define region_last(__region) (((__region)->lblk) + ((__region)->len) - 1) -#define fc_for_each_tl(__start, __end, __tl) \ - for (tl = (struct ext4_fc_tl *)start; \ - (u8 *)tl < (u8 *)end; \ - tl = (struct ext4_fc_tl *)((u8 *)tl + \ - sizeof(struct ext4_fc_tl) + \ - + le16_to_cpu(tl->fc_len))) - #endif /* __FAST_COMMIT_H__ */ From 2050c6e5b161e5e25ce3c420fef58b24fa388a49 Mon Sep 17 00:00:00 2001 From: Phillip Potter Date: Mon, 12 Apr 2021 08:38:37 +0100 Subject: [PATCH 105/196] ext4: fix memory leak in ext4_mb_init_backend on error path. commit a8867f4e3809050571c98de7a2d465aff5e4daf5 upstream. Fix a memory leak discovered by syzbot when a file system is corrupted with an illegally large s_log_groups_per_flex. Reported-by: syzbot+aa12d6106ea4ca1b6aae@syzkaller.appspotmail.com Signed-off-by: Phillip Potter Cc: stable@kernel.org Link: https://lore.kernel.org/r/20210412073837.1686-1-phil@philpotter.co.uk Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman --- fs/ext4/mballoc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index b6229fe1aa23..9c390c3d7fb1 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -2738,7 +2738,7 @@ static int ext4_mb_init_backend(struct super_block *sb) */ if (sbi->s_es->s_log_groups_per_flex >= 32) { ext4_msg(sb, KERN_ERR, "too many log groups per flexible block group"); - goto err_freesgi; + goto err_freebuddy; } sbi->s_mb_prefetch = min_t(uint, 1 << sbi->s_es->s_log_groups_per_flex, BLK_MAX_SEGMENT_SIZE >> (sb->s_blocksize_bits - 9)); From 3b713aafa7c928c53cdc08bc948373566762ce1c Mon Sep 17 00:00:00 2001 From: Ritesh Harjani Date: Thu, 29 Apr 2021 16:13:44 +0530 Subject: [PATCH 106/196] ext4: fix accessing uninit percpu counter variable with fast_commit commit b45f189a19b38e01676628db79cd3eeb1333516e upstream. When running generic/527 with fast_commit configuration, the following issue is seen on Power. With fast_commit, during ext4_fc_replay() (which can be called from ext4_fill_super()), if inode eviction happens then it can access an uninitialized percpu counter variable. This patch adds the check before accessing the counters in ext4_free_inode() path. [ 321.165371] run fstests generic/527 at 2021-04-29 08:38:43 [ 323.027786] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: block_validity. Quota mode: none. [ 323.618772] BUG: Unable to handle kernel data access on read at 0x1fbd80000 [ 323.619767] Faulting instruction address: 0xc000000000bae78c cpu 0x1: Vector: 300 (Data Access) at [c000000010706ef0] pc: c000000000bae78c: percpu_counter_add_batch+0x3c/0x100 lr: c0000000006d0bb0: ext4_free_inode+0x780/0xb90 pid = 5593, comm = mount ext4_free_inode+0x780/0xb90 ext4_evict_inode+0xa8c/0xc60 evict+0xfc/0x1e0 ext4_fc_replay+0xc50/0x20f0 do_one_pass+0xfe0/0x1350 jbd2_journal_recover+0x184/0x2e0 jbd2_journal_load+0x1c0/0x4a0 ext4_fill_super+0x2458/0x4200 mount_bdev+0x1dc/0x290 ext4_mount+0x28/0x40 legacy_get_tree+0x4c/0xa0 vfs_get_tree+0x4c/0x120 path_mount+0xcf8/0xd70 do_mount+0x80/0xd0 sys_mount+0x3fc/0x490 system_call_exception+0x384/0x3d0 system_call_common+0xec/0x278 Cc: stable@kernel.org Fixes: 8016e29f4362 ("ext4: fast commit recovery path") Signed-off-by: Ritesh Harjani Reviewed-by: Harshad Shirwadkar Link: https://lore.kernel.org/r/6cceb9a75c54bef8fa9696c1b08c8df5ff6169e2.1619692410.git.riteshh@linux.ibm.com Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman --- fs/ext4/ialloc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index c92558ede623..b294ebcb4db4 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -322,14 +322,16 @@ void ext4_free_inode(handle_t *handle, struct inode *inode) if (is_directory) { count = ext4_used_dirs_count(sb, gdp) - 1; ext4_used_dirs_set(sb, gdp, count); - percpu_counter_dec(&sbi->s_dirs_counter); + if (percpu_counter_initialized(&sbi->s_dirs_counter)) + percpu_counter_dec(&sbi->s_dirs_counter); } ext4_inode_bitmap_csum_set(sb, block_group, gdp, bitmap_bh, EXT4_INODES_PER_GROUP(sb) / 8); ext4_group_desc_csum_set(sb, block_group, gdp); ext4_unlock_group(sb, block_group); - percpu_counter_inc(&sbi->s_freeinodes_counter); + if (percpu_counter_initialized(&sbi->s_freeinodes_counter)) + percpu_counter_inc(&sbi->s_freeinodes_counter); if (sbi->s_log_groups_per_flex) { struct flex_groups *fg; From a4ed12f5edc41abbfe2bce4a215de2f6ff4993eb Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 8 Jun 2021 13:00:49 +0100 Subject: [PATCH 107/196] usb: dwc2: Fix build in periphal-only mode In branches to which 24d209dba5a3 ("usb: dwc2: Fix hibernation between host and device modes.") has been back-ported, the bus_suspended member of struct dwc2_hsotg is only present in builds that support host-mode. To avoid having to pull in several more non-Fix commits in order to get it to compile, wrap the usage of the member in a macro conditional. Fixes: 24d209dba5a3 ("usb: dwc2: Fix hibernation between host and device modes.") Signed-off-by: Phil Elwell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc2/core_intr.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c index 510fd0572feb..e3f429f1575e 100644 --- a/drivers/usb/dwc2/core_intr.c +++ b/drivers/usb/dwc2/core_intr.c @@ -707,7 +707,11 @@ static inline void dwc_handle_gpwrdn_disc_det(struct dwc2_hsotg *hsotg, dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN); hsotg->hibernated = 0; + +#if IS_ENABLED(CONFIG_USB_DWC2_HOST) || \ + IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE) hsotg->bus_suspended = 0; +#endif if (gpwrdn & GPWRDN_IDSTS) { hsotg->op_state = OTG_STATE_B_PERIPHERAL; From 7178be006d495ffb741c329012da289b62dddfe6 Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Fri, 4 Jun 2021 20:01:14 -0700 Subject: [PATCH 108/196] pid: take a reference when initializing `cad_pid` commit 0711f0d7050b9e07c44bc159bbc64ac0a1022c7f upstream. During boot, kernel_init_freeable() initializes `cad_pid` to the init task's struct pid. Later on, we may change `cad_pid` via a sysctl, and when this happens proc_do_cad_pid() will increment the refcount on the new pid via get_pid(), and will decrement the refcount on the old pid via put_pid(). As we never called get_pid() when we initialized `cad_pid`, we decrement a reference we never incremented, can therefore free the init task's struct pid early. As there can be dangling references to the struct pid, we can later encounter a use-after-free (e.g. when delivering signals). This was spotted when fuzzing v5.13-rc3 with Syzkaller, but seems to have been around since the conversion of `cad_pid` to struct pid in commit 9ec52099e4b8 ("[PATCH] replace cad_pid by a struct pid") from the pre-KASAN stone age of v2.6.19. Fix this by getting a reference to the init task's struct pid when we assign it to `cad_pid`. Full KASAN splat below. ================================================================== BUG: KASAN: use-after-free in ns_of_pid include/linux/pid.h:153 [inline] BUG: KASAN: use-after-free in task_active_pid_ns+0xc0/0xc8 kernel/pid.c:509 Read of size 4 at addr ffff23794dda0004 by task syz-executor.0/273 CPU: 1 PID: 273 Comm: syz-executor.0 Not tainted 5.12.0-00001-g9aef892b2d15 #1 Hardware name: linux,dummy-virt (DT) Call trace: ns_of_pid include/linux/pid.h:153 [inline] task_active_pid_ns+0xc0/0xc8 kernel/pid.c:509 do_notify_parent+0x308/0xe60 kernel/signal.c:1950 exit_notify kernel/exit.c:682 [inline] do_exit+0x2334/0x2bd0 kernel/exit.c:845 do_group_exit+0x108/0x2c8 kernel/exit.c:922 get_signal+0x4e4/0x2a88 kernel/signal.c:2781 do_signal arch/arm64/kernel/signal.c:882 [inline] do_notify_resume+0x300/0x970 arch/arm64/kernel/signal.c:936 work_pending+0xc/0x2dc Allocated by task 0: slab_post_alloc_hook+0x50/0x5c0 mm/slab.h:516 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2915 [inline] kmem_cache_alloc+0x1f4/0x4c0 mm/slub.c:2920 alloc_pid+0xdc/0xc00 kernel/pid.c:180 copy_process+0x2794/0x5e18 kernel/fork.c:2129 kernel_clone+0x194/0x13c8 kernel/fork.c:2500 kernel_thread+0xd4/0x110 kernel/fork.c:2552 rest_init+0x44/0x4a0 init/main.c:687 arch_call_rest_init+0x1c/0x28 start_kernel+0x520/0x554 init/main.c:1064 0x0 Freed by task 270: slab_free_hook mm/slub.c:1562 [inline] slab_free_freelist_hook+0x98/0x260 mm/slub.c:1600 slab_free mm/slub.c:3161 [inline] kmem_cache_free+0x224/0x8e0 mm/slub.c:3177 put_pid.part.4+0xe0/0x1a8 kernel/pid.c:114 put_pid+0x30/0x48 kernel/pid.c:109 proc_do_cad_pid+0x190/0x1b0 kernel/sysctl.c:1401 proc_sys_call_handler+0x338/0x4b0 fs/proc/proc_sysctl.c:591 proc_sys_write+0x34/0x48 fs/proc/proc_sysctl.c:617 call_write_iter include/linux/fs.h:1977 [inline] new_sync_write+0x3ac/0x510 fs/read_write.c:518 vfs_write fs/read_write.c:605 [inline] vfs_write+0x9c4/0x1018 fs/read_write.c:585 ksys_write+0x124/0x240 fs/read_write.c:658 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __arm64_sys_write+0x78/0xb0 fs/read_write.c:667 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall arch/arm64/kernel/syscall.c:49 [inline] el0_svc_common.constprop.1+0x16c/0x388 arch/arm64/kernel/syscall.c:129 do_el0_svc+0xf8/0x150 arch/arm64/kernel/syscall.c:168 el0_svc+0x28/0x38 arch/arm64/kernel/entry-common.c:416 el0_sync_handler+0x134/0x180 arch/arm64/kernel/entry-common.c:432 el0_sync+0x154/0x180 arch/arm64/kernel/entry.S:701 The buggy address belongs to the object at ffff23794dda0000 which belongs to the cache pid of size 224 The buggy address is located 4 bytes inside of 224-byte region [ffff23794dda0000, ffff23794dda00e0) The buggy address belongs to the page: page:(____ptrval____) refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4dda0 head:(____ptrval____) order:1 compound_mapcount:0 flags: 0x3fffc0000010200(slab|head) raw: 03fffc0000010200 dead000000000100 dead000000000122 ffff23794d40d080 raw: 0000000000000000 0000000000190019 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff23794dd9ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff23794dd9ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff23794dda0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff23794dda0080: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff23794dda0100: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 ================================================================== Link: https://lkml.kernel.org/r/20210524172230.38715-1-mark.rutland@arm.com Fixes: 9ec52099e4b8678a ("[PATCH] replace cad_pid by a struct pid") Signed-off-by: Mark Rutland Acked-by: Christian Brauner Cc: Cedric Le Goater Cc: Christian Brauner Cc: Eric W. Biederman Cc: Kees Cook Cc: Paul Mackerras Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- init/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/init/main.c b/init/main.c index d9d914111251..b4449544390c 100644 --- a/init/main.c +++ b/init/main.c @@ -1505,7 +1505,7 @@ static noinline void __init kernel_init_freeable(void) */ set_mems_allowed(node_states[N_MEMORY]); - cad_pid = task_pid(current); + cad_pid = get_pid(task_pid(current)); smp_prepare_cpus(setup_max_cpus); From c8d5faee46242c3f33b8a71a4d7d52214785bfcc Mon Sep 17 00:00:00 2001 From: Junxiao Bi Date: Fri, 4 Jun 2021 20:01:42 -0700 Subject: [PATCH 109/196] ocfs2: fix data corruption by fallocate commit 6bba4471f0cc1296fe3c2089b9e52442d3074b2e upstream. When fallocate punches holes out of inode size, if original isize is in the middle of last cluster, then the part from isize to the end of the cluster will be zeroed with buffer write, at that time isize is not yet updated to match the new size, if writeback is kicked in, it will invoke ocfs2_writepage()->block_write_full_page() where the pages out of inode size will be dropped. That will cause file corruption. Fix this by zero out eof blocks when extending the inode size. Running the following command with qemu-image 4.2.1 can get a corrupted coverted image file easily. qemu-img convert -p -t none -T none -f qcow2 $qcow_image \ -O qcow2 -o compat=1.1 $qcow_image.conv The usage of fallocate in qemu is like this, it first punches holes out of inode size, then extend the inode size. fallocate(11, FALLOC_FL_KEEP_SIZE|FALLOC_FL_PUNCH_HOLE, 2276196352, 65536) = 0 fallocate(11, 0, 2276196352, 65536) = 0 v1: https://www.spinics.net/lists/linux-fsdevel/msg193999.html v2: https://lore.kernel.org/linux-fsdevel/20210525093034.GB4112@quack2.suse.cz/T/ Link: https://lkml.kernel.org/r/20210528210648.9124-1-junxiao.bi@oracle.com Signed-off-by: Junxiao Bi Reviewed-by: Joseph Qi Cc: Jan Kara Cc: Mark Fasheh Cc: Joel Becker Cc: Changwei Ge Cc: Gang He Cc: Jun Piao Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- fs/ocfs2/file.c | 55 ++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 50 insertions(+), 5 deletions(-) diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 8880071ee4ee..2b296d720c9f 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1855,6 +1855,45 @@ out: return ret; } +/* + * zero out partial blocks of one cluster. + * + * start: file offset where zero starts, will be made upper block aligned. + * len: it will be trimmed to the end of current cluster if "start + len" + * is bigger than it. + */ +static int ocfs2_zeroout_partial_cluster(struct inode *inode, + u64 start, u64 len) +{ + int ret; + u64 start_block, end_block, nr_blocks; + u64 p_block, offset; + u32 cluster, p_cluster, nr_clusters; + struct super_block *sb = inode->i_sb; + u64 end = ocfs2_align_bytes_to_clusters(sb, start); + + if (start + len < end) + end = start + len; + + start_block = ocfs2_blocks_for_bytes(sb, start); + end_block = ocfs2_blocks_for_bytes(sb, end); + nr_blocks = end_block - start_block; + if (!nr_blocks) + return 0; + + cluster = ocfs2_bytes_to_clusters(sb, start); + ret = ocfs2_get_clusters(inode, cluster, &p_cluster, + &nr_clusters, NULL); + if (ret) + return ret; + if (!p_cluster) + return 0; + + offset = start_block - ocfs2_clusters_to_blocks(sb, cluster); + p_block = ocfs2_clusters_to_blocks(sb, p_cluster) + offset; + return sb_issue_zeroout(sb, p_block, nr_blocks, GFP_NOFS); +} + /* * Parts of this function taken from xfs_change_file_space() */ @@ -1865,7 +1904,7 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, { int ret; s64 llen; - loff_t size; + loff_t size, orig_isize; struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); struct buffer_head *di_bh = NULL; handle_t *handle; @@ -1896,6 +1935,7 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, goto out_inode_unlock; } + orig_isize = i_size_read(inode); switch (sr->l_whence) { case 0: /*SEEK_SET*/ break; @@ -1903,7 +1943,7 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, sr->l_start += f_pos; break; case 2: /*SEEK_END*/ - sr->l_start += i_size_read(inode); + sr->l_start += orig_isize; break; default: ret = -EINVAL; @@ -1957,6 +1997,14 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, default: ret = -EINVAL; } + + /* zeroout eof blocks in the cluster. */ + if (!ret && change_size && orig_isize < size) { + ret = ocfs2_zeroout_partial_cluster(inode, orig_isize, + size - orig_isize); + if (!ret) + i_size_write(inode, size); + } up_write(&OCFS2_I(inode)->ip_alloc_sem); if (ret) { mlog_errno(ret); @@ -1973,9 +2021,6 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, goto out_inode_unlock; } - if (change_size && i_size_read(inode) < size) - i_size_write(inode, size); - inode->i_ctime = inode->i_mtime = current_time(inode); ret = ocfs2_mark_inode_dirty(handle, inode, di_bh); if (ret < 0) From 5f2e1e818e9fe3df198259cdbc070989d7f01c24 Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Fri, 4 Jun 2021 20:01:18 -0700 Subject: [PATCH 110/196] mm/debug_vm_pgtable: fix alignment for pmd/pud_advanced_tests() commit 04f7ce3f07ce39b1a3ca03a56b238a53acc52cfd upstream. In pmd/pud_advanced_tests(), the vaddr is aligned up to the next pmd/pud entry, and so it does not match the given pmdp/pudp and (aligned down) pfn any more. For s390, this results in memory corruption, because the IDTE instruction used e.g. in xxx_get_and_clear() will take the vaddr for some calculations, in combination with the given pmdp. It will then end up with a wrong table origin, ending on ...ff8, and some of those wrongly set low-order bits will also select a wrong pagetable level for the index addition. IDTE could therefore invalidate (or 0x20) something outside of the page tables, depending on the wrongly picked index, which in turn depends on the random vaddr. As result, we sometimes see "BUG task_struct (Not tainted): Padding overwritten" on s390, where one 0x5a padding value got overwritten with 0x7a. Fix this by aligning down, similar to how the pmd/pud_aligned pfns are calculated. Link: https://lkml.kernel.org/r/20210525130043.186290-2-gerald.schaefer@linux.ibm.com Fixes: a5c3b9ffb0f40 ("mm/debug_vm_pgtable: add tests validating advanced arch page table helpers") Signed-off-by: Gerald Schaefer Reviewed-by: Anshuman Khandual Cc: Vineet Gupta Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: [5.9+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- mm/debug_vm_pgtable.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c index c05d9dcf7891..750bfef26be3 100644 --- a/mm/debug_vm_pgtable.c +++ b/mm/debug_vm_pgtable.c @@ -163,7 +163,7 @@ static void __init pmd_advanced_tests(struct mm_struct *mm, pr_debug("Validating PMD advanced\n"); /* Align the address wrt HPAGE_PMD_SIZE */ - vaddr = (vaddr & HPAGE_PMD_MASK) + HPAGE_PMD_SIZE; + vaddr &= HPAGE_PMD_MASK; pgtable_trans_huge_deposit(mm, pmdp, pgtable); @@ -285,7 +285,7 @@ static void __init pud_advanced_tests(struct mm_struct *mm, pr_debug("Validating PUD advanced\n"); /* Align the address wrt HPAGE_PUD_SIZE */ - vaddr = (vaddr & HPAGE_PUD_MASK) + HPAGE_PUD_SIZE; + vaddr &= HPAGE_PUD_MASK; set_pud_at(mm, vaddr, pudp, pud); pudp_set_wrprotect(mm, vaddr, pudp); From 68dcd32b326a3cb875ae579b120dae34718451a2 Mon Sep 17 00:00:00 2001 From: Ding Hui Date: Fri, 4 Jun 2021 20:01:21 -0700 Subject: [PATCH 111/196] mm/page_alloc: fix counting of free pages after take off from buddy commit bac9c6fa1f929213bbd0ac9cdf21e8e2f0916828 upstream. Recently we found that there is a lot MemFree left in /proc/meminfo after do a lot of pages soft offline, it's not quite correct. Before Oscar's rework of soft offline for free pages [1], if we soft offline free pages, these pages are left in buddy with HWPoison flag, and NR_FREE_PAGES is not updated immediately. So the difference between NR_FREE_PAGES and real number of available free pages is also even big at the beginning. However, with the workload running, when we catch HWPoison page in any alloc functions subsequently, we will remove it from buddy, meanwhile update the NR_FREE_PAGES and try again, so the NR_FREE_PAGES will get more and more closer to the real number of available free pages. (regardless of unpoison_memory()) Now, for offline free pages, after a successful call take_page_off_buddy(), the page is no longer belong to buddy allocator, and will not be used any more, but we missed accounting NR_FREE_PAGES in this situation, and there is no chance to be updated later. Do update in take_page_off_buddy() like rmqueue() does, but avoid double counting if some one already set_migratetype_isolate() on the page. [1]: commit 06be6ff3d2ec ("mm,hwpoison: rework soft offline for free pages") Link: https://lkml.kernel.org/r/20210526075247.11130-1-dinghui@sangfor.com.cn Fixes: 06be6ff3d2ec ("mm,hwpoison: rework soft offline for free pages") Signed-off-by: Ding Hui Suggested-by: Naoya Horiguchi Reviewed-by: Oscar Salvador Acked-by: David Hildenbrand Acked-by: Naoya Horiguchi Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- mm/page_alloc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 7ffa706e5c30..81cc7fdc9c8f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -8870,6 +8870,8 @@ bool take_page_off_buddy(struct page *page) del_page_from_free_list(page_head, zone, page_order); break_down_buddy_pages(zone, page_head, page, 0, page_order, migratetype); + if (!is_migrate_isolate(migratetype)) + __mod_zone_freepage_state(zone, -1, migratetype); ret = true; break; } From 942c5864de85dc14602ec875e88e0337896db6d9 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 29 May 2021 11:17:30 +0200 Subject: [PATCH 112/196] x86/cpufeatures: Force disable X86_FEATURE_ENQCMD and remove update_pasid() commit 9bfecd05833918526cc7357d55e393393440c5fa upstream. While digesting the XSAVE-related horrors which got introduced with the supervisor/user split, the recent addition of ENQCMD-related functionality got on the radar and turned out to be similarly broken. update_pasid(), which is only required when X86_FEATURE_ENQCMD is available, is invoked from two places: 1) From switch_to() for the incoming task 2) Via a SMP function call from the IOMMU/SMV code #1 is half-ways correct as it hacks around the brokenness of get_xsave_addr() by enforcing the state to be 'present', but all the conditionals in that code are completely pointless for that. Also the invocation is just useless overhead because at that point it's guaranteed that TIF_NEED_FPU_LOAD is set on the incoming task and all of this can be handled at return to user space. #2 is broken beyond repair. The comment in the code claims that it is safe to invoke this in an IPI, but that's just wishful thinking. FPU state of a running task is protected by fregs_lock() which is nothing else than a local_bh_disable(). As BH-disabled regions run usually with interrupts enabled the IPI can hit a code section which modifies FPU state and there is absolutely no guarantee that any of the assumptions which are made for the IPI case is true. Also the IPI is sent to all CPUs in mm_cpumask(mm), but the IPI is invoked with a NULL pointer argument, so it can hit a completely unrelated task and unconditionally force an update for nothing. Worse, it can hit a kernel thread which operates on a user space address space and set a random PASID for it. The offending commit does not cleanly revert, but it's sufficient to force disable X86_FEATURE_ENQCMD and to remove the broken update_pasid() code to make this dysfunctional all over the place. Anything more complex would require more surgery and none of the related functions outside of the x86 core code are blatantly wrong, so removing those would be overkill. As nothing enables the PASID bit in the IA32_XSS MSR yet, which is required to make this actually work, this cannot result in a regression except for related out of tree train-wrecks, but they are broken already today. Fixes: 20f0afd1fb3d ("x86/mmu: Allocate/free a PASID") Signed-off-by: Thomas Gleixner Signed-off-by: Borislav Petkov Acked-by: Andy Lutomirski Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/87mtsd6gr9.ffs@nanos.tec.linutronix.de Signed-off-by: Greg Kroah-Hartman --- arch/x86/include/asm/disabled-features.h | 7 +-- arch/x86/include/asm/fpu/api.h | 6 +-- arch/x86/include/asm/fpu/internal.h | 7 --- arch/x86/kernel/fpu/xstate.c | 57 ------------------------ 4 files changed, 3 insertions(+), 74 deletions(-) diff --git a/arch/x86/include/asm/disabled-features.h b/arch/x86/include/asm/disabled-features.h index 5861d34f9771..09db5b8f1444 100644 --- a/arch/x86/include/asm/disabled-features.h +++ b/arch/x86/include/asm/disabled-features.h @@ -56,11 +56,8 @@ # define DISABLE_PTI (1 << (X86_FEATURE_PTI & 31)) #endif -#ifdef CONFIG_IOMMU_SUPPORT -# define DISABLE_ENQCMD 0 -#else -# define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31)) -#endif +/* Force disable because it's broken beyond repair */ +#define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31)) /* * Make sure to add features to the correct mask diff --git a/arch/x86/include/asm/fpu/api.h b/arch/x86/include/asm/fpu/api.h index 38f4936045ab..8b9bfaad6e66 100644 --- a/arch/x86/include/asm/fpu/api.h +++ b/arch/x86/include/asm/fpu/api.h @@ -79,10 +79,6 @@ extern int cpu_has_xfeatures(u64 xfeatures_mask, const char **feature_name); */ #define PASID_DISABLED 0 -#ifdef CONFIG_IOMMU_SUPPORT -/* Update current's PASID MSR/state by mm's PASID. */ -void update_pasid(void); -#else static inline void update_pasid(void) { } -#endif + #endif /* _ASM_X86_FPU_API_H */ diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h index 8d33ad80704f..ceeba9f63172 100644 --- a/arch/x86/include/asm/fpu/internal.h +++ b/arch/x86/include/asm/fpu/internal.h @@ -584,13 +584,6 @@ static inline void switch_fpu_finish(struct fpu *new_fpu) pkru_val = pk->pkru; } __write_pkru(pkru_val); - - /* - * Expensive PASID MSR write will be avoided in update_pasid() because - * TIF_NEED_FPU_LOAD was set. And the PASID state won't be updated - * unless it's different from mm->pasid to reduce overhead. - */ - update_pasid(); } #endif /* _ASM_X86_FPU_INTERNAL_H */ diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index 5d8047441a0a..67f1a03b9b23 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -1402,60 +1402,3 @@ int proc_pid_arch_status(struct seq_file *m, struct pid_namespace *ns, return 0; } #endif /* CONFIG_PROC_PID_ARCH_STATUS */ - -#ifdef CONFIG_IOMMU_SUPPORT -void update_pasid(void) -{ - u64 pasid_state; - u32 pasid; - - if (!cpu_feature_enabled(X86_FEATURE_ENQCMD)) - return; - - if (!current->mm) - return; - - pasid = READ_ONCE(current->mm->pasid); - /* Set the valid bit in the PASID MSR/state only for valid pasid. */ - pasid_state = pasid == PASID_DISABLED ? - pasid : pasid | MSR_IA32_PASID_VALID; - - /* - * No need to hold fregs_lock() since the task's fpstate won't - * be changed by others (e.g. ptrace) while the task is being - * switched to or is in IPI. - */ - if (!test_thread_flag(TIF_NEED_FPU_LOAD)) { - /* The MSR is active and can be directly updated. */ - wrmsrl(MSR_IA32_PASID, pasid_state); - } else { - struct fpu *fpu = ¤t->thread.fpu; - struct ia32_pasid_state *ppasid_state; - struct xregs_state *xsave; - - /* - * The CPU's xstate registers are not currently active. Just - * update the PASID state in the memory buffer here. The - * PASID MSR will be loaded when returning to user mode. - */ - xsave = &fpu->state.xsave; - xsave->header.xfeatures |= XFEATURE_MASK_PASID; - ppasid_state = get_xsave_addr(xsave, XFEATURE_PASID); - /* - * Since XFEATURE_MASK_PASID is set in xfeatures, ppasid_state - * won't be NULL and no need to check its value. - * - * Only update the task's PASID state when it's different - * from the mm's pasid. - */ - if (ppasid_state->pasid != pasid_state) { - /* - * Invalid fpregs so that state restoring will pick up - * the PASID state. - */ - __fpu_invalidate_fpregs_state(fpu); - ppasid_state->pasid = pasid_state; - } - } -} -#endif /* CONFIG_IOMMU_SUPPORT */ From 445477e9274efd08459b7ccf19578a63c3596082 Mon Sep 17 00:00:00 2001 From: Pu Wen Date: Wed, 2 Jun 2021 15:02:07 +0800 Subject: [PATCH 113/196] x86/sev: Check SME/SEV support in CPUID first commit 009767dbf42ac0dbe3cf48c1ee224f6b778aa85a upstream. The first two bits of the CPUID leaf 0x8000001F EAX indicate whether SEV or SME is supported, respectively. It's better to check whether SEV or SME is actually supported before accessing the MSR_AMD64_SEV to check whether SEV or SME is enabled. This is both a bare-metal issue and a guest/VM issue. Since the first generation Hygon Dhyana CPU doesn't support the MSR_AMD64_SEV, reading that MSR results in a #GP - either directly from hardware in the bare-metal case or via the hypervisor (because the RDMSR is actually intercepted) in the guest/VM case, resulting in a failed boot. And since this is very early in the boot phase, rdmsrl_safe()/native_read_msr_safe() can't be used. So check the CPUID bits first, before accessing the MSR. [ tlendacky: Expand and improve commit message. ] [ bp: Massage commit message. ] Fixes: eab696d8e8b9 ("x86/sev: Do not require Hypervisor CPUID bit for SEV guests") Signed-off-by: Pu Wen Signed-off-by: Borislav Petkov Acked-by: Tom Lendacky Cc: # v5.10+ Link: https://lkml.kernel.org/r/20210602070207.2480-1-puwen@hygon.cn Signed-off-by: Greg Kroah-Hartman --- arch/x86/mm/mem_encrypt_identity.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/arch/x86/mm/mem_encrypt_identity.c b/arch/x86/mm/mem_encrypt_identity.c index a19374d26101..65f599e9075b 100644 --- a/arch/x86/mm/mem_encrypt_identity.c +++ b/arch/x86/mm/mem_encrypt_identity.c @@ -504,10 +504,6 @@ void __init sme_enable(struct boot_params *bp) #define AMD_SME_BIT BIT(0) #define AMD_SEV_BIT BIT(1) - /* Check the SEV MSR whether SEV or SME is enabled */ - sev_status = __rdmsr(MSR_AMD64_SEV); - feature_mask = (sev_status & MSR_AMD64_SEV_ENABLED) ? AMD_SEV_BIT : AMD_SME_BIT; - /* * Check for the SME/SEV feature: * CPUID Fn8000_001F[EAX] @@ -519,11 +515,16 @@ void __init sme_enable(struct boot_params *bp) eax = 0x8000001f; ecx = 0; native_cpuid(&eax, &ebx, &ecx, &edx); - if (!(eax & feature_mask)) + /* Check whether SEV or SME is supported */ + if (!(eax & (AMD_SEV_BIT | AMD_SME_BIT))) return; me_mask = 1UL << (ebx & 0x3f); + /* Check the SEV MSR whether SEV or SME is enabled */ + sev_status = __rdmsr(MSR_AMD64_SEV); + feature_mask = (sev_status & MSR_AMD64_SEV_ENABLED) ? AMD_SEV_BIT : AMD_SME_BIT; + /* Check if memory encryption is enabled */ if (feature_mask == AMD_SME_BIT) { /* From 48ee0db61c8299022ec88c79ad137f290196cac2 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Mon, 31 May 2021 09:21:38 +0200 Subject: [PATCH 114/196] nfc: fix NULL ptr dereference in llcp_sock_getname() after failed connect commit 4ac06a1e013cf5fdd963317ffd3b968560f33bba upstream. It's possible to trigger NULL pointer dereference by local unprivileged user, when calling getsockname() after failed bind() (e.g. the bind fails because LLCP_SAP_MAX used as SAP): BUG: kernel NULL pointer dereference, address: 0000000000000000 CPU: 1 PID: 426 Comm: llcp_sock_getna Not tainted 5.13.0-rc2-next-20210521+ #9 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1 04/01/2014 Call Trace: llcp_sock_getname+0xb1/0xe0 __sys_getpeername+0x95/0xc0 ? lockdep_hardirqs_on_prepare+0xd5/0x180 ? syscall_enter_from_user_mode+0x1c/0x40 __x64_sys_getpeername+0x11/0x20 do_syscall_64+0x36/0x70 entry_SYSCALL_64_after_hwframe+0x44/0xae This can be reproduced with Syzkaller C repro (bind followed by getpeername): https://syzkaller.appspot.com/x/repro.c?x=14def446e00000 Cc: Fixes: d646960f7986 ("NFC: Initial LLCP support") Reported-by: syzbot+80fb126e7f7d8b1a5914@syzkaller.appspotmail.com Reported-by: butt3rflyh4ck Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20210531072138.5219-1-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/nfc/llcp_sock.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index 53dbe733f998..6cfd30fc0798 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -110,6 +110,7 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) if (!llcp_sock->service_name) { nfc_llcp_local_put(llcp_sock->local); llcp_sock->local = NULL; + llcp_sock->dev = NULL; ret = -ENOMEM; goto put_dev; } @@ -119,6 +120,7 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) llcp_sock->local = NULL; kfree(llcp_sock->service_name); llcp_sock->service_name = NULL; + llcp_sock->dev = NULL; ret = -EADDRINUSE; goto put_dev; } From 58da0b509e4b8f4a3a4b1b2e23871d108f81338a Mon Sep 17 00:00:00 2001 From: Luben Tuikov Date: Wed, 12 May 2021 12:33:23 -0400 Subject: [PATCH 115/196] drm/amdgpu: Don't query CE and UE errors MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit dce3d8e1d070900e0feeb06787a319ff9379212c upstream. On QUERY2 IOCTL don't query counts of correctable and uncorrectable errors, since when RAS is enabled and supported on Vega20 server boards, this takes insurmountably long time, in O(n^3), which slows the system down to the point of it being unusable when we have GUI up. Fixes: ae363a212b14 ("drm/amdgpu: Add a new flag to AMDGPU_CTX_OP_QUERY_STATE2") Cc: Alexander Deucher Cc: stable@vger.kernel.org Signed-off-by: Luben Tuikov Reviewed-by: Alexander Deucher Reviewed-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c index c80d8339f58c..2c1c5f7f98de 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c @@ -337,7 +337,6 @@ static int amdgpu_ctx_query2(struct amdgpu_device *adev, { struct amdgpu_ctx *ctx; struct amdgpu_ctx_mgr *mgr; - unsigned long ras_counter; if (!fpriv) return -EINVAL; @@ -362,21 +361,6 @@ static int amdgpu_ctx_query2(struct amdgpu_device *adev, if (atomic_read(&ctx->guilty)) out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_GUILTY; - /*query ue count*/ - ras_counter = amdgpu_ras_query_error_count(adev, false); - /*ras counter is monotonic increasing*/ - if (ras_counter != ctx->ras_counter_ue) { - out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_RAS_UE; - ctx->ras_counter_ue = ras_counter; - } - - /*query ce count*/ - ras_counter = amdgpu_ras_query_error_count(adev, true); - if (ras_counter != ctx->ras_counter_ce) { - out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_RAS_CE; - ctx->ras_counter_ce = ras_counter; - } - mutex_unlock(&mgr->lock); return 0; } From 3a6b69221f96f87c680bbc9fba01db3415b18f27 Mon Sep 17 00:00:00 2001 From: Nirmoy Das Date: Fri, 28 May 2021 16:54:16 +0200 Subject: [PATCH 116/196] drm/amdgpu: make sure we unpin the UVD BO MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 07438603a07e52f1c6aa731842bd298d2725b7be upstream. Releasing pinned BOs is illegal now. UVD 6 was missing from: commit 2f40801dc553 ("drm/amdgpu: make sure we unpin the UVD BO") Fixes: 2f40801dc553 ("drm/amdgpu: make sure we unpin the UVD BO") Cc: stable@vger.kernel.org Signed-off-by: Nirmoy Das Reviewed-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c index 666bfa4a0b8e..53f0899eb316 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c @@ -356,6 +356,7 @@ static int uvd_v6_0_enc_ring_test_ib(struct amdgpu_ring *ring, long timeout) error: dma_fence_put(fence); + amdgpu_bo_unpin(bo); amdgpu_bo_unreserve(bo); amdgpu_bo_unref(&bo); return r; From 42f75a4381a4ffb1b7488f90c657ea0b5461d3b7 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 25 May 2021 13:08:41 +0200 Subject: [PATCH 117/196] x86/apic: Mark _all_ legacy interrupts when IO/APIC is missing commit 7d65f9e80646c595e8c853640a9d0768a33e204c upstream. PIC interrupts do not support affinity setting and they can end up on any online CPU. Therefore, it's required to mark the associated vectors as system-wide reserved. Otherwise, the corresponding irq descriptors are copied to the secondary CPUs but the vectors are not marked as assigned or reserved. This works correctly for the IO/APIC case. When the IO/APIC is disabled via config, kernel command line or lack of enumeration then all legacy interrupts are routed through the PIC, but nothing marks them as system-wide reserved vectors. As a consequence, a subsequent allocation on a secondary CPU can result in allocating one of these vectors, which triggers the BUG() in apic_update_vector() because the interrupt descriptor slot is not empty. Imran tried to work around that by marking those interrupts as allocated when a CPU comes online. But that's wrong in case that the IO/APIC is available and one of the legacy interrupts, e.g. IRQ0, has been switched to PIC mode because then marking them as allocated will fail as they are already marked as system vectors. Stay consistent and update the legacy vectors after attempting IO/APIC initialization and mark them as system vectors in case that no IO/APIC is available. Fixes: 69cde0004a4b ("x86/vector: Use matrix allocator for vector assignment") Reported-by: Imran Khan Signed-off-by: Thomas Gleixner Signed-off-by: Borislav Petkov Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20210519233928.2157496-1-imran.f.khan@oracle.com Signed-off-by: Greg Kroah-Hartman --- arch/x86/include/asm/apic.h | 1 + arch/x86/kernel/apic/apic.c | 1 + arch/x86/kernel/apic/vector.c | 20 ++++++++++++++++++++ 3 files changed, 22 insertions(+) diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index 51abd44ab8c2..3b4412c83eec 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -174,6 +174,7 @@ static inline int apic_is_clustered_box(void) extern int setup_APIC_eilvt(u8 lvt_off, u8 vector, u8 msg_type, u8 mask); extern void lapic_assign_system_vectors(void); extern void lapic_assign_legacy_vector(unsigned int isairq, bool replace); +extern void lapic_update_legacy_vectors(void); extern void lapic_online(void); extern void lapic_offline(void); extern bool apic_needs_pit(void); diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index 539f3e88ca7c..24539a05c58c 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -2539,6 +2539,7 @@ static void __init apic_bsp_setup(bool upmode) end_local_APIC_setup(); irq_remap_enable_fault_handling(); setup_IO_APIC(); + lapic_update_legacy_vectors(); } #ifdef CONFIG_UP_LATE_INIT diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index 758bbf25ef74..bd557e9f5dd8 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -687,6 +687,26 @@ void lapic_assign_legacy_vector(unsigned int irq, bool replace) irq_matrix_assign_system(vector_matrix, ISA_IRQ_VECTOR(irq), replace); } +void __init lapic_update_legacy_vectors(void) +{ + unsigned int i; + + if (IS_ENABLED(CONFIG_X86_IO_APIC) && nr_ioapics > 0) + return; + + /* + * If the IO/APIC is disabled via config, kernel command line or + * lack of enumeration then all legacy interrupts are routed + * through the PIC. Make sure that they are marked as legacy + * vectors. PIC_CASCADE_IRQ has already been marked in + * lapic_assign_system_vectors(). + */ + for (i = 0; i < nr_legacy_irqs(); i++) { + if (i != PIC_CASCADE_IR) + lapic_assign_legacy_vector(i, true); + } +} + void __init lapic_assign_system_vectors(void) { unsigned int i, vector = 0; From 5e5e63bacbe8f1ef9688e7804275eb88cf0be51a Mon Sep 17 00:00:00 2001 From: "Naveen N. Rao" Date: Wed, 19 May 2021 16:17:17 +0530 Subject: [PATCH 118/196] powerpc/kprobes: Fix validation of prefixed instructions across page boundary commit 82123a3d1d5a306fdf50c968a474cc60fe43a80f upstream. When checking if the probed instruction is the suffix of a prefixed instruction, we access the instruction at the previous word. If the probed instruction is the very first word of a module, we can end up trying to access an invalid page. Fix this by skipping the check for all instructions at the beginning of a page. Prefixed instructions cannot cross a 64-byte boundary and as such, we don't expect to encounter a suffix as the very first word in a page for kernel text. Even if there are prefixed instructions crossing a page boundary (from a module, for instance), the instruction will be illegal, so preventing probing on the suffix of such prefix instructions isn't worthwhile. Fixes: b4657f7650ba ("powerpc/kprobes: Don't allow breakpoints on suffixes") Cc: stable@vger.kernel.org # v5.8+ Reported-by: Christophe Leroy Signed-off-by: Naveen N. Rao Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/0df9a032a05576a2fa8e97d1b769af2ff0eafbd6.1621416666.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/kernel/kprobes.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index 01ab2163659e..e8c2a6373157 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -108,7 +108,6 @@ int arch_prepare_kprobe(struct kprobe *p) int ret = 0; struct kprobe *prev; struct ppc_inst insn = ppc_inst_read((struct ppc_inst *)p->addr); - struct ppc_inst prefix = ppc_inst_read((struct ppc_inst *)(p->addr - 1)); if ((unsigned long)p->addr & 0x03) { printk("Attempt to register kprobe at an unaligned address\n"); @@ -116,7 +115,8 @@ int arch_prepare_kprobe(struct kprobe *p) } else if (IS_MTMSRD(insn) || IS_RFID(insn) || IS_RFI(insn)) { printk("Cannot register a kprobe on rfi/rfid or mtmsr[d]\n"); ret = -EINVAL; - } else if (ppc_inst_prefixed(prefix)) { + } else if ((unsigned long)p->addr & ~PAGE_MASK && + ppc_inst_prefixed(ppc_inst_read((struct ppc_inst *)(p->addr - 1)))) { printk("Cannot register a kprobe on the second word of prefixed instruction\n"); ret = -EINVAL; } From b547a16b24918edd63042f9d81c0d310212d2e94 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 19 May 2021 09:38:27 -0400 Subject: [PATCH 119/196] btrfs: mark ordered extent and inode with error if we fail to finish commit d61bec08b904cf171835db98168f82bc338e92e4 upstream. While doing error injection testing I saw that sometimes we'd get an abort that wouldn't stop the current transaction commit from completing. This abort was coming from finish ordered IO, but at this point in the transaction commit we should have gotten an error and stopped. It turns out the abort came from finish ordered io while trying to write out the free space cache. It occurred to me that any failure inside of finish_ordered_io isn't actually raised to the person doing the writing, so we could have any number of failures in this path and think the ordered extent completed successfully and the inode was fine. Fix this by marking the ordered extent with BTRFS_ORDERED_IOERR, and marking the mapping of the inode with mapping_set_error, so any callers that simply call fdatawait will also get the error. With this we're seeing the IO error on the free space inode when we fail to do the finish_ordered_io. CC: stable@vger.kernel.org # 4.19+ Signed-off-by: Josef Bacik Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/inode.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 94c24b2a211b..c913875f416c 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -2760,6 +2760,18 @@ out: if (ret || truncated) { u64 unwritten_start = start; + /* + * If we failed to finish this ordered extent for any reason we + * need to make sure BTRFS_ORDERED_IOERR is set on the ordered + * extent, and mark the inode with the error if it wasn't + * already set. Any error during writeback would have already + * set the mapping error, so we need to set it if we're the ones + * marking this ordered extent as failed. + */ + if (ret && !test_and_set_bit(BTRFS_ORDERED_IOERR, + &ordered_extent->flags)) + mapping_set_error(ordered_extent->inode->i_mapping, -EIO); + if (truncated) unwritten_start += logical_len; clear_extent_uptodate(io_tree, unwritten_start, end, NULL); From 5a89982fa2bba459b82323655df986945a853bbe Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 19 May 2021 10:52:45 -0400 Subject: [PATCH 120/196] btrfs: fix error handling in btrfs_del_csums commit b86652be7c83f70bf406bed18ecf55adb9bfb91b upstream. Error injection stress would sometimes fail with checksums on disk that did not have a corresponding extent. This occurred because the pattern in btrfs_del_csums was while (1) { ret = btrfs_search_slot(); if (ret < 0) break; } ret = 0; out: btrfs_free_path(path); return ret; If we got an error from btrfs_search_slot we'd clear the error because we were breaking instead of goto out. Instead of using goto out, simply handle the cases where we may leave a random value in ret, and get rid of the ret = 0; out: pattern and simply allow break to have the proper error reporting. With this fix we properly abort the transaction and do not commit thinking we successfully deleted the csum. Reviewed-by: Qu Wenruo CC: stable@vger.kernel.org # 4.4+ Signed-off-by: Josef Bacik Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/file-item.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 8f4f2bd6d9b9..48a2ea6d7092 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -690,7 +690,7 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans, u64 end_byte = bytenr + len; u64 csum_end; struct extent_buffer *leaf; - int ret; + int ret = 0; u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); int blocksize_bits = fs_info->sb->s_blocksize_bits; @@ -709,6 +709,7 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans, path->leave_spinning = 1; ret = btrfs_search_slot(trans, root, &key, path, -1, 1); if (ret > 0) { + ret = 0; if (path->slots[0] == 0) break; path->slots[0]--; @@ -765,7 +766,7 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans, ret = btrfs_del_items(trans, root, path, path->slots[0], del_nr); if (ret) - goto out; + break; if (key.offset == bytenr) break; } else if (key.offset < bytenr && csum_end > end_byte) { @@ -809,8 +810,9 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans, ret = btrfs_split_item(trans, root, path, &key, offset); if (ret && ret != -EAGAIN) { btrfs_abort_transaction(trans, ret); - goto out; + break; } + ret = 0; key.offset = end_byte - 1; } else { @@ -820,8 +822,6 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans, } btrfs_release_path(path); } - ret = 0; -out: btrfs_free_path(path); return ret; } From 466d83fdbbe345f3cfd5f7b2633f740ecad67853 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 19 May 2021 10:52:46 -0400 Subject: [PATCH 121/196] btrfs: return errors from btrfs_del_csums in cleanup_ref_head commit 856bd270dc4db209c779ce1e9555c7641ffbc88e upstream. We are unconditionally returning 0 in cleanup_ref_head, despite the fact that btrfs_del_csums could fail. We need to return the error so the transaction gets aborted properly, fix this by returning ret from btrfs_del_csums in cleanup_ref_head. Reviewed-by: Qu Wenruo CC: stable@vger.kernel.org # 4.19+ Signed-off-by: Josef Bacik Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/extent-tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 51c18da4792e..728d75e8e792 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -1830,7 +1830,7 @@ static int cleanup_ref_head(struct btrfs_trans_handle *trans, trace_run_delayed_ref_head(fs_info, head, 0); btrfs_delayed_ref_unlock(head); btrfs_put_delayed_ref_head(head); - return 0; + return ret; } static struct btrfs_delayed_ref_head *btrfs_obtain_ref_head( From 48568f3944ee7357e8fed394804745bd981e978a Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 19 May 2021 13:13:15 -0400 Subject: [PATCH 122/196] btrfs: fixup error handling in fixup_inode_link_counts commit 011b28acf940eb61c000059dd9e2cfcbf52ed96b upstream. This function has the following pattern while (1) { ret = whatever(); if (ret) goto out; } ret = 0 out: return ret; However several places in this while loop we simply break; when there's a problem, thus clearing the return value, and in one case we do a return -EIO, and leak the memory for the path. Fix this by re-arranging the loop to deal with ret == 1 coming from btrfs_search_slot, and then simply delete the ret = 0; out: bit so everybody can break if there is an error, which will allow for proper error handling to occur. CC: stable@vger.kernel.org # 4.4+ Signed-off-by: Josef Bacik Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/tree-log.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 9a0cfa0e124d..300951088a11 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -1752,6 +1752,7 @@ static noinline int fixup_inode_link_counts(struct btrfs_trans_handle *trans, break; if (ret == 1) { + ret = 0; if (path->slots[0] == 0) break; path->slots[0]--; @@ -1764,17 +1765,19 @@ static noinline int fixup_inode_link_counts(struct btrfs_trans_handle *trans, ret = btrfs_del_item(trans, root, path); if (ret) - goto out; + break; btrfs_release_path(path); inode = read_one_inode(root, key.offset); - if (!inode) - return -EIO; + if (!inode) { + ret = -EIO; + break; + } ret = fixup_inode_link_count(trans, root, inode); iput(inode); if (ret) - goto out; + break; /* * fixup on a directory may create new entries, @@ -1783,8 +1786,6 @@ static noinline int fixup_inode_link_counts(struct btrfs_trans_handle *trans, */ key.offset = (u64)-1; } - ret = 0; -out: btrfs_release_path(path); return ret; } From 0df50d47d17401f9f140dfbe752a65e5d72f9932 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 19 May 2021 14:04:21 -0400 Subject: [PATCH 123/196] btrfs: abort in rename_exchange if we fail to insert the second ref commit dc09ef3562726cd520c8338c1640872a60187af5 upstream. Error injection stress uncovered a problem where we'd leave a dangling inode ref if we failed during a rename_exchange. This happens because we insert the inode ref for one side of the rename, and then for the other side. If this second inode ref insert fails we'll leave the first one dangling and leave a corrupt file system behind. Fix this by aborting if we did the insert for the first inode ref. CC: stable@vger.kernel.org # 4.9+ Signed-off-by: Josef Bacik Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/inode.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index c913875f416c..4f26dae63b64 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -8890,6 +8890,7 @@ static int btrfs_rename_exchange(struct inode *old_dir, int ret2; bool root_log_pinned = false; bool dest_log_pinned = false; + bool need_abort = false; /* we only allow rename subvolume link between subvolumes */ if (old_ino != BTRFS_FIRST_FREE_OBJECTID && root != dest) @@ -8946,6 +8947,7 @@ static int btrfs_rename_exchange(struct inode *old_dir, old_idx); if (ret) goto out_fail; + need_abort = true; } /* And now for the dest. */ @@ -8961,8 +8963,11 @@ static int btrfs_rename_exchange(struct inode *old_dir, new_ino, btrfs_ino(BTRFS_I(old_dir)), new_idx); - if (ret) + if (ret) { + if (need_abort) + btrfs_abort_transaction(trans, ret); goto out_fail; + } } /* Update inode version and ctime/mtime. */ From baa6763123e2b63b8289943c7211ba0e3220432f Mon Sep 17 00:00:00 2001 From: Filipe Manana Date: Tue, 25 May 2021 11:05:28 +0100 Subject: [PATCH 124/196] btrfs: fix deadlock when cloning inline extents and low on available space commit 76a6d5cd74479e7ec8a7f9a29bce63d5549b6b2e upstream. There are a few cases where cloning an inline extent requires copying data into a page of the destination inode. For these cases we are allocating the required data and metadata space while holding a leaf locked. This can result in a deadlock when we are low on available space because allocating the space may flush delalloc and two deadlock scenarios can happen: 1) When starting writeback for an inode with a very small dirty range that fits in an inline extent, we deadlock during the writeback when trying to insert the inline extent, at cow_file_range_inline(), if the extent is going to be located in the leaf for which we are already holding a read lock; 2) After successfully starting writeback, for non-inline extent cases, the async reclaim thread will hang waiting for an ordered extent to complete if the ordered extent completion needs to modify the leaf for which the clone task is holding a read lock (for adding or replacing file extent items). So the cloning task will wait forever on the async reclaim thread to make progress, which in turn is waiting for the ordered extent completion which in turn is waiting to acquire a write lock on the same leaf. So fix this by making sure we release the path (and therefore the leaf) every time we need to copy the inline extent's data into a page of the destination inode, as by that time we do not need to have the leaf locked. Fixes: 05a5a7621ce66c ("Btrfs: implement full reflink support for inline extents") CC: stable@vger.kernel.org # 5.10+ Signed-off-by: Filipe Manana Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/reflink.c | 38 ++++++++++++++++++++++---------------- 1 file changed, 22 insertions(+), 16 deletions(-) diff --git a/fs/btrfs/reflink.c b/fs/btrfs/reflink.c index eeb66e797e0b..96ef9fed9a65 100644 --- a/fs/btrfs/reflink.c +++ b/fs/btrfs/reflink.c @@ -207,10 +207,7 @@ static int clone_copy_inline_extent(struct inode *dst, * inline extent's data to the page. */ ASSERT(key.offset > 0); - ret = copy_inline_to_page(BTRFS_I(dst), new_key->offset, - inline_data, size, datal, - comp_type); - goto out; + goto copy_to_page; } } else if (i_size_read(dst) <= datal) { struct btrfs_file_extent_item *ei; @@ -226,13 +223,10 @@ static int clone_copy_inline_extent(struct inode *dst, BTRFS_FILE_EXTENT_INLINE) goto copy_inline_extent; - ret = copy_inline_to_page(BTRFS_I(dst), new_key->offset, - inline_data, size, datal, comp_type); - goto out; + goto copy_to_page; } copy_inline_extent: - ret = 0; /* * We have no extent items, or we have an extent at offset 0 which may * or may not be inlined. All these cases are dealt the same way. @@ -244,11 +238,13 @@ copy_inline_extent: * clone. Deal with all these cases by copying the inline extent * data into the respective page at the destination inode. */ - ret = copy_inline_to_page(BTRFS_I(dst), new_key->offset, - inline_data, size, datal, comp_type); - goto out; + goto copy_to_page; } + /* + * Release path before starting a new transaction so we don't hold locks + * that would confuse lockdep. + */ btrfs_release_path(path); /* * If we end up here it means were copy the inline extent into a leaf @@ -281,11 +277,6 @@ copy_inline_extent: ret = btrfs_inode_set_file_extent_range(BTRFS_I(dst), 0, aligned_end); out: if (!ret && !trans) { - /* - * Release path before starting a new transaction so we don't - * hold locks that would confuse lockdep. - */ - btrfs_release_path(path); /* * No transaction here means we copied the inline extent into a * page of the destination inode. @@ -306,6 +297,21 @@ out: *trans_out = trans; return ret; + +copy_to_page: + /* + * Release our path because we don't need it anymore and also because + * copy_inline_to_page() needs to reserve data and metadata, which may + * need to flush delalloc when we are low on available space and + * therefore cause a deadlock if writeback of an inline extent needs to + * write to the same leaf or an ordered extent completion needs to write + * to the same leaf. + */ + btrfs_release_path(path); + + ret = copy_inline_to_page(BTRFS_I(dst), new_key->offset, + inline_data, size, datal, comp_type); + goto out; } /** From 2eb4ec9c2c3535b9755c484183cc5c4d90fd37ff Mon Sep 17 00:00:00 2001 From: Mina Almasry Date: Fri, 4 Jun 2021 20:01:36 -0700 Subject: [PATCH 125/196] mm, hugetlb: fix simple resv_huge_pages underflow on UFFDIO_COPY [ Upstream commit d84cf06e3dd8c5c5b547b5d8931015fc536678e5 ] The userfaultfd hugetlb tests cause a resv_huge_pages underflow. This happens when hugetlb_mcopy_atomic_pte() is called with !is_continue on an index for which we already have a page in the cache. When this happens, we allocate a second page, double consuming the reservation, and then fail to insert the page into the cache and return -EEXIST. To fix this, we first check if there is a page in the cache which already consumed the reservation, and return -EEXIST immediately if so. There is still a rare condition where we fail to copy the page contents AND race with a call for hugetlb_no_page() for this index and again we will underflow resv_huge_pages. That is fixed in a more complicated patch not targeted for -stable. Test: Hacked the code locally such that resv_huge_pages underflows produce a warning, then: ./tools/testing/selftests/vm/userfaultfd hugetlb_shared 10 2 /tmp/kokonut_test/huge/userfaultfd_test && echo test success ./tools/testing/selftests/vm/userfaultfd hugetlb 10 2 /tmp/kokonut_test/huge/userfaultfd_test && echo test success Both tests succeed and produce no warnings. After the test runs number of free/resv hugepages is correct. [mike.kravetz@oracle.com: changelog fixes] Link: https://lkml.kernel.org/r/20210528004649.85298-1-almasrymina@google.com Fixes: 8fb5debc5fcd ("userfaultfd: hugetlbfs: add hugetlb_mcopy_atomic_pte for userfaultfd support") Signed-off-by: Mina Almasry Reviewed-by: Mike Kravetz Cc: Axel Rasmussen Cc: Peter Xu Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin --- mm/hugetlb.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 900851a4f914..bc1006a32733 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -4708,10 +4708,20 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm, struct page *page; if (!*pagep) { - ret = -ENOMEM; - page = alloc_huge_page(dst_vma, dst_addr, 0); - if (IS_ERR(page)) + /* If a page already exists, then it's UFFDIO_COPY for + * a non-missing case. Return -EEXIST. + */ + if (vm_shared && + hugetlbfs_pagecache_present(h, dst_vma, dst_addr)) { + ret = -EEXIST; goto out; + } + + page = alloc_huge_page(dst_vma, dst_addr, 0); + if (IS_ERR(page)) { + ret = -ENOMEM; + goto out; + } ret = copy_huge_page_from_user(page, (const void __user *) src_addr, From 05e41f6f1c4e8c42edb9715b6629d9ab2af61064 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Thu, 1 Apr 2021 05:05:33 +0300 Subject: [PATCH 126/196] drm/msm/dpu: always use mdp device to scale bandwidth commit a670ff578f1fb855fedc7931fa5bbc06b567af22 upstream. Currently DPU driver scales bandwidth and core clock for sc7180 only, while the rest of chips get static bandwidth votes. Make all chipsets scale bandwidth and clock per composition requirements like sc7180 does. Drop old voting path completely. Tested on RB3 (SDM845) and RB5 (SM8250). Signed-off-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20210401020533.3956787-2-dmitry.baryshkov@linaro.org Signed-off-by: Rob Clark Signed-off-by: Amit Pundir Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 3 +- drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c | 51 +----------------------- 2 files changed, 2 insertions(+), 52 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index e69ea810e18d..c8217f4858a1 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -931,8 +931,7 @@ static int dpu_kms_hw_init(struct msm_kms *kms) DPU_DEBUG("REG_DMA is not defined"); } - if (of_device_is_compatible(dev->dev->of_node, "qcom,sc7180-mdss")) - dpu_kms_parse_data_bus_icc_path(dpu_kms); + dpu_kms_parse_data_bus_icc_path(dpu_kms); pm_runtime_get_sync(&dpu_kms->pdev->dev); diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c index cd4078807db1..3416e9617ee9 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c @@ -31,40 +31,8 @@ struct dpu_mdss { void __iomem *mmio; struct dss_module_power mp; struct dpu_irq_controller irq_controller; - struct icc_path *path[2]; - u32 num_paths; }; -static int dpu_mdss_parse_data_bus_icc_path(struct drm_device *dev, - struct dpu_mdss *dpu_mdss) -{ - struct icc_path *path0 = of_icc_get(dev->dev, "mdp0-mem"); - struct icc_path *path1 = of_icc_get(dev->dev, "mdp1-mem"); - - if (IS_ERR_OR_NULL(path0)) - return PTR_ERR_OR_ZERO(path0); - - dpu_mdss->path[0] = path0; - dpu_mdss->num_paths = 1; - - if (!IS_ERR_OR_NULL(path1)) { - dpu_mdss->path[1] = path1; - dpu_mdss->num_paths++; - } - - return 0; -} - -static void dpu_mdss_icc_request_bw(struct msm_mdss *mdss) -{ - struct dpu_mdss *dpu_mdss = to_dpu_mdss(mdss); - int i; - u64 avg_bw = dpu_mdss->num_paths ? MAX_BW / dpu_mdss->num_paths : 0; - - for (i = 0; i < dpu_mdss->num_paths; i++) - icc_set_bw(dpu_mdss->path[i], avg_bw, kBps_to_icc(MAX_BW)); -} - static void dpu_mdss_irq(struct irq_desc *desc) { struct dpu_mdss *dpu_mdss = irq_desc_get_handler_data(desc); @@ -178,8 +146,6 @@ static int dpu_mdss_enable(struct msm_mdss *mdss) struct dss_module_power *mp = &dpu_mdss->mp; int ret; - dpu_mdss_icc_request_bw(mdss); - ret = msm_dss_enable_clk(mp->clk_config, mp->num_clk, true); if (ret) { DPU_ERROR("clock enable failed, ret:%d\n", ret); @@ -213,15 +179,12 @@ static int dpu_mdss_disable(struct msm_mdss *mdss) { struct dpu_mdss *dpu_mdss = to_dpu_mdss(mdss); struct dss_module_power *mp = &dpu_mdss->mp; - int ret, i; + int ret; ret = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false); if (ret) DPU_ERROR("clock disable failed, ret:%d\n", ret); - for (i = 0; i < dpu_mdss->num_paths; i++) - icc_set_bw(dpu_mdss->path[i], 0, 0); - return ret; } @@ -232,7 +195,6 @@ static void dpu_mdss_destroy(struct drm_device *dev) struct dpu_mdss *dpu_mdss = to_dpu_mdss(priv->mdss); struct dss_module_power *mp = &dpu_mdss->mp; int irq; - int i; pm_runtime_suspend(dev->dev); pm_runtime_disable(dev->dev); @@ -242,9 +204,6 @@ static void dpu_mdss_destroy(struct drm_device *dev) msm_dss_put_clk(mp->clk_config, mp->num_clk); devm_kfree(&pdev->dev, mp->clk_config); - for (i = 0; i < dpu_mdss->num_paths; i++) - icc_put(dpu_mdss->path[i]); - if (dpu_mdss->mmio) devm_iounmap(&pdev->dev, dpu_mdss->mmio); dpu_mdss->mmio = NULL; @@ -276,12 +235,6 @@ int dpu_mdss_init(struct drm_device *dev) DRM_DEBUG("mapped mdss address space @%pK\n", dpu_mdss->mmio); - if (!of_device_is_compatible(dev->dev->of_node, "qcom,sc7180-mdss")) { - ret = dpu_mdss_parse_data_bus_icc_path(dev, dpu_mdss); - if (ret) - return ret; - } - mp = &dpu_mdss->mp; ret = msm_dss_parse_clock(pdev, mp); if (ret) { @@ -307,8 +260,6 @@ int dpu_mdss_init(struct drm_device *dev) pm_runtime_enable(dev->dev); - dpu_mdss_icc_request_bw(priv->mdss); - return ret; irq_error: From fe910d20e2d8e0736bbea9c1efe6a49535e807ea Mon Sep 17 00:00:00 2001 From: Anand Jain Date: Fri, 30 Apr 2021 19:59:51 +0800 Subject: [PATCH 127/196] btrfs: fix unmountable seed device after fstrim commit 5e753a817b2d5991dfe8a801b7b1e8e79a1c5a20 upstream. The following test case reproduces an issue of wrongly freeing in-use blocks on the readonly seed device when fstrim is called on the rw sprout device. As shown below. Create a seed device and add a sprout device to it: $ mkfs.btrfs -fq -dsingle -msingle /dev/loop0 $ btrfstune -S 1 /dev/loop0 $ mount /dev/loop0 /btrfs $ btrfs dev add -f /dev/loop1 /btrfs BTRFS info (device loop0): relocating block group 290455552 flags system BTRFS info (device loop0): relocating block group 1048576 flags system BTRFS info (device loop0): disk added /dev/loop1 $ umount /btrfs Mount the sprout device and run fstrim: $ mount /dev/loop1 /btrfs $ fstrim /btrfs $ umount /btrfs Now try to mount the seed device, and it fails: $ mount /dev/loop0 /btrfs mount: /btrfs: wrong fs type, bad option, bad superblock on /dev/loop0, missing codepage or helper program, or other error. Block 5292032 is missing on the readonly seed device: $ dmesg -kt | tail BTRFS error (device loop0): bad tree block start, want 5292032 have 0 BTRFS warning (device loop0): couldn't read-tree root BTRFS error (device loop0): open_ctree failed >From the dump-tree of the seed device (taken before the fstrim). Block 5292032 belonged to the block group starting at 5242880: $ btrfs inspect dump-tree -e /dev/loop0 | grep -A1 BLOCK_GROUP item 3 key (5242880 BLOCK_GROUP_ITEM 8388608) itemoff 16169 itemsize 24 block group used 114688 chunk_objectid 256 flags METADATA >From the dump-tree of the sprout device (taken before the fstrim). fstrim used block-group 5242880 to find the related free space to free: $ btrfs inspect dump-tree -e /dev/loop1 | grep -A1 BLOCK_GROUP item 1 key (5242880 BLOCK_GROUP_ITEM 8388608) itemoff 16226 itemsize 24 block group used 32768 chunk_objectid 256 flags METADATA BPF kernel tracing the fstrim command finds the missing block 5292032 within the range of the discarded blocks as below: kprobe:btrfs_discard_extent { printf("freeing start %llu end %llu num_bytes %llu:\n", arg1, arg1+arg2, arg2); } freeing start 5259264 end 5406720 num_bytes 147456 Fix this by avoiding the discard command to the readonly seed device. Reported-by: Chris Murphy CC: stable@vger.kernel.org # 4.4+ Reviewed-by: Filipe Manana Signed-off-by: Anand Jain Signed-off-by: David Sterba Signed-off-by: Sudip Mukherjee Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/extent-tree.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 728d75e8e792..73ebe0c5fdbc 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -1297,16 +1297,20 @@ int btrfs_discard_extent(struct btrfs_fs_info *fs_info, u64 bytenr, for (i = 0; i < bbio->num_stripes; i++, stripe++) { u64 bytes; struct request_queue *req_q; + struct btrfs_device *device = stripe->dev; - if (!stripe->dev->bdev) { + if (!device->bdev) { ASSERT(btrfs_test_opt(fs_info, DEGRADED)); continue; } - req_q = bdev_get_queue(stripe->dev->bdev); + req_q = bdev_get_queue(device->bdev); if (!blk_queue_discard(req_q)) continue; - ret = btrfs_issue_discard(stripe->dev->bdev, + if (!test_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state)) + continue; + + ret = btrfs_issue_discard(device->bdev, stripe->physical, stripe->length, &bytes); From b3ee3f50ab1bf7b60ba4a8346dca05ba3412fead Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Wed, 21 Apr 2021 19:21:22 -0700 Subject: [PATCH 128/196] KVM: SVM: Truncate GPR value for DR and CR accesses in !64-bit mode commit 0884335a2e653b8a045083aa1d57ce74269ac81d upstream. Drop bits 63:32 on loads/stores to/from DRs and CRs when the vCPU is not in 64-bit mode. The APM states bits 63:32 are dropped for both DRs and CRs: In 64-bit mode, the operand size is fixed at 64 bits without the need for a REX prefix. In non-64-bit mode, the operand size is fixed at 32 bits and the upper 32 bits of the destination are forced to 0. Fixes: 7ff76d58a9dc ("KVM: SVM: enhance MOV CR intercept handler") Fixes: cae3797a4639 ("KVM: SVM: enhance mov DR intercept handler") Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson Message-Id: <20210422022128.3464144-4-seanjc@google.com> Signed-off-by: Paolo Bonzini Signed-off-by: Sudip Mukherjee Signed-off-by: Greg Kroah-Hartman --- arch/x86/kvm/svm/svm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 9d4eb114613c..41d44fb5f753 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2362,7 +2362,7 @@ static int cr_interception(struct vcpu_svm *svm) err = 0; if (cr >= 16) { /* mov to cr */ cr -= 16; - val = kvm_register_read(&svm->vcpu, reg); + val = kvm_register_readl(&svm->vcpu, reg); trace_kvm_cr_write(cr, val); switch (cr) { case 0: @@ -2408,7 +2408,7 @@ static int cr_interception(struct vcpu_svm *svm) kvm_queue_exception(&svm->vcpu, UD_VECTOR); return 1; } - kvm_register_write(&svm->vcpu, reg, val); + kvm_register_writel(&svm->vcpu, reg, val); trace_kvm_cr_read(cr, val); } return kvm_complete_insn_gp(&svm->vcpu, err); @@ -2439,13 +2439,13 @@ static int dr_interception(struct vcpu_svm *svm) if (dr >= 16) { /* mov to DRn */ if (!kvm_require_dr(&svm->vcpu, dr - 16)) return 1; - val = kvm_register_read(&svm->vcpu, reg); + val = kvm_register_readl(&svm->vcpu, reg); kvm_set_dr(&svm->vcpu, dr - 16, val); } else { if (!kvm_require_dr(&svm->vcpu, dr)) return 1; kvm_get_dr(&svm->vcpu, dr, &val); - kvm_register_write(&svm->vcpu, reg, val); + kvm_register_writel(&svm->vcpu, reg, val); } return kvm_skip_emulated_instruction(&svm->vcpu); From b327c97747595b462a003a11e6728ebd860cd285 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 14 May 2021 09:05:41 +0100 Subject: [PATCH 129/196] KVM: arm64: Fix debug register indexing commit cb853ded1d25e5b026ce115dbcde69e3d7e2e831 upstream. Commit 03fdfb2690099 ("KVM: arm64: Don't write junk to sysregs on reset") flipped the register number to 0 for all the debug registers in the sysreg table, hereby indicating that these registers live in a separate shadow structure. However, the author of this patch failed to realise that all the accessors are using that particular index instead of the register encoding, resulting in all the registers hitting index 0. Not quite a valid implementation of the architecture... Address the issue by fixing all the accessors to use the CRm field of the encoding, which contains the debug register index. Fixes: 03fdfb2690099 ("KVM: arm64: Don't write junk to sysregs on reset") Reported-by: Ricardo Koller Signed-off-by: Marc Zyngier Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- arch/arm64/kvm/sys_regs.c | 42 +++++++++++++++++++-------------------- 1 file changed, 21 insertions(+), 21 deletions(-) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index b246a4acba41..568f11e23830 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -464,14 +464,14 @@ static bool trap_bvr(struct kvm_vcpu *vcpu, struct sys_reg_params *p, const struct sys_reg_desc *rd) { - u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->reg]; + u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->CRm]; if (p->is_write) reg_to_dbg(vcpu, p, dbg_reg); else dbg_to_reg(vcpu, p, dbg_reg); - trace_trap_reg(__func__, rd->reg, p->is_write, *dbg_reg); + trace_trap_reg(__func__, rd->CRm, p->is_write, *dbg_reg); return true; } @@ -479,7 +479,7 @@ static bool trap_bvr(struct kvm_vcpu *vcpu, static int set_bvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, const struct kvm_one_reg *reg, void __user *uaddr) { - __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->reg]; + __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->CRm]; if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0) return -EFAULT; @@ -489,7 +489,7 @@ static int set_bvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, static int get_bvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, const struct kvm_one_reg *reg, void __user *uaddr) { - __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->reg]; + __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->CRm]; if (copy_to_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0) return -EFAULT; @@ -499,21 +499,21 @@ static int get_bvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, static void reset_bvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd) { - vcpu->arch.vcpu_debug_state.dbg_bvr[rd->reg] = rd->val; + vcpu->arch.vcpu_debug_state.dbg_bvr[rd->CRm] = rd->val; } static bool trap_bcr(struct kvm_vcpu *vcpu, struct sys_reg_params *p, const struct sys_reg_desc *rd) { - u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->reg]; + u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->CRm]; if (p->is_write) reg_to_dbg(vcpu, p, dbg_reg); else dbg_to_reg(vcpu, p, dbg_reg); - trace_trap_reg(__func__, rd->reg, p->is_write, *dbg_reg); + trace_trap_reg(__func__, rd->CRm, p->is_write, *dbg_reg); return true; } @@ -521,7 +521,7 @@ static bool trap_bcr(struct kvm_vcpu *vcpu, static int set_bcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, const struct kvm_one_reg *reg, void __user *uaddr) { - __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->reg]; + __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->CRm]; if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0) return -EFAULT; @@ -532,7 +532,7 @@ static int set_bcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, static int get_bcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, const struct kvm_one_reg *reg, void __user *uaddr) { - __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->reg]; + __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->CRm]; if (copy_to_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0) return -EFAULT; @@ -542,22 +542,22 @@ static int get_bcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, static void reset_bcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd) { - vcpu->arch.vcpu_debug_state.dbg_bcr[rd->reg] = rd->val; + vcpu->arch.vcpu_debug_state.dbg_bcr[rd->CRm] = rd->val; } static bool trap_wvr(struct kvm_vcpu *vcpu, struct sys_reg_params *p, const struct sys_reg_desc *rd) { - u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg]; + u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->CRm]; if (p->is_write) reg_to_dbg(vcpu, p, dbg_reg); else dbg_to_reg(vcpu, p, dbg_reg); - trace_trap_reg(__func__, rd->reg, p->is_write, - vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg]); + trace_trap_reg(__func__, rd->CRm, p->is_write, + vcpu->arch.vcpu_debug_state.dbg_wvr[rd->CRm]); return true; } @@ -565,7 +565,7 @@ static bool trap_wvr(struct kvm_vcpu *vcpu, static int set_wvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, const struct kvm_one_reg *reg, void __user *uaddr) { - __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg]; + __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->CRm]; if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0) return -EFAULT; @@ -575,7 +575,7 @@ static int set_wvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, static int get_wvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, const struct kvm_one_reg *reg, void __user *uaddr) { - __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg]; + __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->CRm]; if (copy_to_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0) return -EFAULT; @@ -585,21 +585,21 @@ static int get_wvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, static void reset_wvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd) { - vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg] = rd->val; + vcpu->arch.vcpu_debug_state.dbg_wvr[rd->CRm] = rd->val; } static bool trap_wcr(struct kvm_vcpu *vcpu, struct sys_reg_params *p, const struct sys_reg_desc *rd) { - u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->reg]; + u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->CRm]; if (p->is_write) reg_to_dbg(vcpu, p, dbg_reg); else dbg_to_reg(vcpu, p, dbg_reg); - trace_trap_reg(__func__, rd->reg, p->is_write, *dbg_reg); + trace_trap_reg(__func__, rd->CRm, p->is_write, *dbg_reg); return true; } @@ -607,7 +607,7 @@ static bool trap_wcr(struct kvm_vcpu *vcpu, static int set_wcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, const struct kvm_one_reg *reg, void __user *uaddr) { - __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->reg]; + __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->CRm]; if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0) return -EFAULT; @@ -617,7 +617,7 @@ static int set_wcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, static int get_wcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, const struct kvm_one_reg *reg, void __user *uaddr) { - __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->reg]; + __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->CRm]; if (copy_to_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0) return -EFAULT; @@ -627,7 +627,7 @@ static int get_wcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd, static void reset_wcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd) { - vcpu->arch.vcpu_debug_state.dbg_wcr[rd->reg] = rd->val; + vcpu->arch.vcpu_debug_state.dbg_wcr[rd->CRm] = rd->val; } static void reset_amair_el1(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r) From 38b858da1c58ad46519a257764e059e663b59ff2 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Mon, 31 May 2021 16:05:24 +0200 Subject: [PATCH 130/196] x86/kvm: Teardown PV features on boot CPU as well commit 8b79feffeca28c5459458fe78676b081e87c93a4 upstream. Various PV features (Async PF, PV EOI, steal time) work through memory shared with hypervisor and when we restore from hibernation we must properly teardown all these features to make sure hypervisor doesn't write to stale locations after we jump to the previously hibernated kernel (which can try to place anything there). For secondary CPUs the job is already done by kvm_cpu_down_prepare(), register syscore ops to do the same for boot CPU. Krzysztof: This fixes memory corruption visible after second resume from hibernation: BUG: Bad page state in process dbus-daemon pfn:18b01 page:ffffea000062c040 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 compound_mapcount: -30591 flags: 0xfffffc0078141(locked|error|workingset|writeback|head|mappedtodisk|reclaim) raw: 000fffffc0078141 dead0000000002d0 dead000000000100 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_PREP flag set bad because of flags: 0x78141(locked|error|workingset|writeback|head|mappedtodisk|reclaim) Signed-off-by: Vitaly Kuznetsov Message-Id: <20210414123544.1060604-3-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini Signed-off-by: Andrea Righi [krzysztof: Extend the commit message, adjust for v5.10 context] Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/kvm.c | 63 ++++++++++++++++++++++++++++++------------- 1 file changed, 44 insertions(+), 19 deletions(-) diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 7f57ede3cb8e..6af3f9c3956c 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include @@ -460,6 +461,25 @@ static bool pv_tlb_flush_supported(void) static DEFINE_PER_CPU(cpumask_var_t, __pv_cpu_mask); +static void kvm_guest_cpu_offline(void) +{ + kvm_disable_steal_time(); + if (kvm_para_has_feature(KVM_FEATURE_PV_EOI)) + wrmsrl(MSR_KVM_PV_EOI_EN, 0); + kvm_pv_disable_apf(); + apf_task_wake_all(); +} + +static int kvm_cpu_online(unsigned int cpu) +{ + unsigned long flags; + + local_irq_save(flags); + kvm_guest_cpu_init(); + local_irq_restore(flags); + return 0; +} + #ifdef CONFIG_SMP static bool pv_ipi_supported(void) @@ -587,32 +607,35 @@ static void __init kvm_smp_prepare_boot_cpu(void) kvm_spinlock_init(); } -static void kvm_guest_cpu_offline(void) -{ - kvm_disable_steal_time(); - if (kvm_para_has_feature(KVM_FEATURE_PV_EOI)) - wrmsrl(MSR_KVM_PV_EOI_EN, 0); - kvm_pv_disable_apf(); - apf_task_wake_all(); -} - -static int kvm_cpu_online(unsigned int cpu) -{ - local_irq_disable(); - kvm_guest_cpu_init(); - local_irq_enable(); - return 0; -} - static int kvm_cpu_down_prepare(unsigned int cpu) { - local_irq_disable(); + unsigned long flags; + + local_irq_save(flags); kvm_guest_cpu_offline(); - local_irq_enable(); + local_irq_restore(flags); return 0; } + #endif +static int kvm_suspend(void) +{ + kvm_guest_cpu_offline(); + + return 0; +} + +static void kvm_resume(void) +{ + kvm_cpu_online(raw_smp_processor_id()); +} + +static struct syscore_ops kvm_syscore_ops = { + .suspend = kvm_suspend, + .resume = kvm_resume, +}; + static void kvm_flush_tlb_others(const struct cpumask *cpumask, const struct flush_tlb_info *info) { @@ -681,6 +704,8 @@ static void __init kvm_guest_init(void) kvm_guest_cpu_init(); #endif + register_syscore_ops(&kvm_syscore_ops); + /* * Hard lockup detection is enabled by default. Disable it, as guests * can get false positives too easily, for example if the host is From 3b0becf8b1ecf642a9edaf4c9628ffc641e490d6 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Mon, 31 May 2021 16:05:25 +0200 Subject: [PATCH 131/196] x86/kvm: Disable kvmclock on all CPUs on shutdown commit c02027b5742b5aa804ef08a4a9db433295533046 upstream. Currenly, we disable kvmclock from machine_shutdown() hook and this only happens for boot CPU. We need to disable it for all CPUs to guard against memory corruption e.g. on restore from hibernate. Note, writing '0' to kvmclock MSR doesn't clear memory location, it just prevents hypervisor from updating the location so for the short while after write and while CPU is still alive, the clock remains usable and correct so we don't need to switch to some other clocksource. Signed-off-by: Vitaly Kuznetsov Message-Id: <20210414123544.1060604-4-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini Signed-off-by: Andrea Righi Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman --- arch/x86/include/asm/kvm_para.h | 4 ++-- arch/x86/kernel/kvm.c | 1 + arch/x86/kernel/kvmclock.c | 5 +---- 3 files changed, 4 insertions(+), 6 deletions(-) diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h index 338119852512..9c56e0defd45 100644 --- a/arch/x86/include/asm/kvm_para.h +++ b/arch/x86/include/asm/kvm_para.h @@ -7,8 +7,6 @@ #include #include -extern void kvmclock_init(void); - #ifdef CONFIG_KVM_GUEST bool kvm_check_and_clear_guest_paused(void); #else @@ -86,6 +84,8 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1, } #ifdef CONFIG_KVM_GUEST +void kvmclock_init(void); +void kvmclock_disable(void); bool kvm_para_available(void); unsigned int kvm_arch_para_features(void); unsigned int kvm_arch_para_hints(void); diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 6af3f9c3956c..be1c42e663c6 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -468,6 +468,7 @@ static void kvm_guest_cpu_offline(void) wrmsrl(MSR_KVM_PV_EOI_EN, 0); kvm_pv_disable_apf(); apf_task_wake_all(); + kvmclock_disable(); } static int kvm_cpu_online(unsigned int cpu) diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index 5ee705b44560..327a0de01066 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -221,11 +221,9 @@ static void kvm_crash_shutdown(struct pt_regs *regs) } #endif -static void kvm_shutdown(void) +void kvmclock_disable(void) { native_write_msr(msr_kvm_system_time, 0, 0); - kvm_disable_steal_time(); - native_machine_shutdown(); } static void __init kvmclock_init_mem(void) @@ -352,7 +350,6 @@ void __init kvmclock_init(void) #endif x86_platform.save_sched_clock_state = kvm_save_sched_clock_state; x86_platform.restore_sched_clock_state = kvm_restore_sched_clock_state; - machine_ops.shutdown = kvm_shutdown; #ifdef CONFIG_KEXEC_CORE machine_ops.crash_shutdown = kvm_crash_shutdown; #endif From 334c59d58de5faf449d9c9feaa8c50dd8b4046a7 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Mon, 31 May 2021 16:05:26 +0200 Subject: [PATCH 132/196] x86/kvm: Disable all PV features on crash commit 3d6b84132d2a57b5a74100f6923a8feb679ac2ce upstream. Crash shutdown handler only disables kvmclock and steal time, other PV features remain active so we risk corrupting memory or getting some side-effects in kdump kernel. Move crash handler to kvm.c and unify with CPU offline. Signed-off-by: Vitaly Kuznetsov Message-Id: <20210414123544.1060604-5-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman --- arch/x86/include/asm/kvm_para.h | 6 ----- arch/x86/kernel/kvm.c | 44 ++++++++++++++++++++++++--------- arch/x86/kernel/kvmclock.c | 21 ---------------- 3 files changed, 32 insertions(+), 39 deletions(-) diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h index 9c56e0defd45..69299878b200 100644 --- a/arch/x86/include/asm/kvm_para.h +++ b/arch/x86/include/asm/kvm_para.h @@ -92,7 +92,6 @@ unsigned int kvm_arch_para_hints(void); void kvm_async_pf_task_wait_schedule(u32 token); void kvm_async_pf_task_wake(u32 token); u32 kvm_read_and_reset_apf_flags(void); -void kvm_disable_steal_time(void); bool __kvm_handle_async_pf(struct pt_regs *regs, u32 token); DECLARE_STATIC_KEY_FALSE(kvm_async_pf_enabled); @@ -137,11 +136,6 @@ static inline u32 kvm_read_and_reset_apf_flags(void) return 0; } -static inline void kvm_disable_steal_time(void) -{ - return; -} - static __always_inline bool kvm_handle_async_pf(struct pt_regs *regs, u32 token) { return false; diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index be1c42e663c6..7462b79c39de 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -38,6 +38,7 @@ #include #include #include +#include #include DEFINE_STATIC_KEY_FALSE(kvm_async_pf_enabled); @@ -375,6 +376,14 @@ static void kvm_pv_disable_apf(void) pr_info("Unregister pv shared memory for cpu %d\n", smp_processor_id()); } +static void kvm_disable_steal_time(void) +{ + if (!has_steal_clock) + return; + + wrmsr(MSR_KVM_STEAL_TIME, 0, 0); +} + static void kvm_pv_guest_cpu_reboot(void *unused) { /* @@ -417,14 +426,6 @@ static u64 kvm_steal_clock(int cpu) return steal; } -void kvm_disable_steal_time(void) -{ - if (!has_steal_clock) - return; - - wrmsr(MSR_KVM_STEAL_TIME, 0, 0); -} - static inline void __set_percpu_decrypted(void *ptr, unsigned long size) { early_set_memory_decrypted((unsigned long) ptr, size); @@ -461,13 +462,14 @@ static bool pv_tlb_flush_supported(void) static DEFINE_PER_CPU(cpumask_var_t, __pv_cpu_mask); -static void kvm_guest_cpu_offline(void) +static void kvm_guest_cpu_offline(bool shutdown) { kvm_disable_steal_time(); if (kvm_para_has_feature(KVM_FEATURE_PV_EOI)) wrmsrl(MSR_KVM_PV_EOI_EN, 0); kvm_pv_disable_apf(); - apf_task_wake_all(); + if (!shutdown) + apf_task_wake_all(); kvmclock_disable(); } @@ -613,7 +615,7 @@ static int kvm_cpu_down_prepare(unsigned int cpu) unsigned long flags; local_irq_save(flags); - kvm_guest_cpu_offline(); + kvm_guest_cpu_offline(false); local_irq_restore(flags); return 0; } @@ -622,7 +624,7 @@ static int kvm_cpu_down_prepare(unsigned int cpu) static int kvm_suspend(void) { - kvm_guest_cpu_offline(); + kvm_guest_cpu_offline(false); return 0; } @@ -637,6 +639,20 @@ static struct syscore_ops kvm_syscore_ops = { .resume = kvm_resume, }; +/* + * After a PV feature is registered, the host will keep writing to the + * registered memory location. If the guest happens to shutdown, this memory + * won't be valid. In cases like kexec, in which you install a new kernel, this + * means a random memory location will be kept being written. + */ +#ifdef CONFIG_KEXEC_CORE +static void kvm_crash_shutdown(struct pt_regs *regs) +{ + kvm_guest_cpu_offline(true); + native_machine_crash_shutdown(regs); +} +#endif + static void kvm_flush_tlb_others(const struct cpumask *cpumask, const struct flush_tlb_info *info) { @@ -705,6 +721,10 @@ static void __init kvm_guest_init(void) kvm_guest_cpu_init(); #endif +#ifdef CONFIG_KEXEC_CORE + machine_ops.crash_shutdown = kvm_crash_shutdown; +#endif + register_syscore_ops(&kvm_syscore_ops); /* diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index 327a0de01066..c4ac26333bc4 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -20,7 +20,6 @@ #include #include #include -#include #include static int kvmclock __initdata = 1; @@ -204,23 +203,6 @@ static void kvm_setup_secondary_clock(void) } #endif -/* - * After the clock is registered, the host will keep writing to the - * registered memory location. If the guest happens to shutdown, this memory - * won't be valid. In cases like kexec, in which you install a new kernel, this - * means a random memory location will be kept being written. So before any - * kind of shutdown from our side, we unregister the clock by writing anything - * that does not have the 'enable' bit set in the msr - */ -#ifdef CONFIG_KEXEC_CORE -static void kvm_crash_shutdown(struct pt_regs *regs) -{ - native_write_msr(msr_kvm_system_time, 0, 0); - kvm_disable_steal_time(); - native_machine_crash_shutdown(regs); -} -#endif - void kvmclock_disable(void) { native_write_msr(msr_kvm_system_time, 0, 0); @@ -350,9 +332,6 @@ void __init kvmclock_init(void) #endif x86_platform.save_sched_clock_state = kvm_save_sched_clock_state; x86_platform.restore_sched_clock_state = kvm_restore_sched_clock_state; -#ifdef CONFIG_KEXEC_CORE - machine_ops.crash_shutdown = kvm_crash_shutdown; -#endif kvm_get_preset_lpj(); /* From f20eef4d068637dc48ed24887ebc7b1faa860ae5 Mon Sep 17 00:00:00 2001 From: Gao Xiang Date: Tue, 15 Dec 2020 20:44:03 -0800 Subject: [PATCH 133/196] lib/lz4: explicitly support in-place decompression commit 89b158635ad79574bde8e94d45dad33f8cf09549 upstream. LZ4 final literal copy could be overlapped when doing in-place decompression, so it's unsafe to just use memcpy() on an optimized memcpy approach but memmove() instead. Upstream LZ4 has updated this years ago [1] (and the impact is non-sensible [2] plus only a few bytes remain), this commit just synchronizes LZ4 upstream code to the kernel side as well. It can be observed as EROFS in-place decompression failure on specific files when X86_FEATURE_ERMS is unsupported, memcpy() optimization of commit 59daa706fbec ("x86, mem: Optimize memcpy by avoiding memory false dependece") will be enabled then. Currently most modern x86-CPUs support ERMS, these CPUs just use "rep movsb" approach so no problem at all. However, it can still be verified with forcely disabling ERMS feature... arch/x86/lib/memcpy_64.S: ALTERNATIVE_2 "jmp memcpy_orig", "", X86_FEATURE_REP_GOOD, \ - "jmp memcpy_erms", X86_FEATURE_ERMS + "jmp memcpy_orig", X86_FEATURE_ERMS We didn't observe any strange on arm64/arm/x86 platform before since most memcpy() would behave in an increasing address order ("copy upwards" [3]) and it's the correct order of in-place decompression but it really needs an update to memmove() for sure considering it's an undefined behavior according to the standard and some unique optimization already exists in the kernel. [1] https://github.com/lz4/lz4/commit/33cb8518ac385835cc17be9a770b27b40cd0e15b [2] https://github.com/lz4/lz4/pull/717#issuecomment-497818921 [3] https://sourceware.org/bugzilla/show_bug.cgi?id=12518 Link: https://lkml.kernel.org/r/20201122030749.2698994-1-hsiangkao@redhat.com Signed-off-by: Gao Xiang Reviewed-by: Nick Terrell Cc: Yann Collet Cc: Miao Xie Cc: Chao Yu Cc: Li Guifu Cc: Guo Xuenan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Gao Xiang Signed-off-by: Greg Kroah-Hartman --- lib/lz4/lz4_decompress.c | 6 +++++- lib/lz4/lz4defs.h | 1 + 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/lib/lz4/lz4_decompress.c b/lib/lz4/lz4_decompress.c index 00cb0d0b73e1..8a7724a6ce2f 100644 --- a/lib/lz4/lz4_decompress.c +++ b/lib/lz4/lz4_decompress.c @@ -263,7 +263,11 @@ static FORCE_INLINE int LZ4_decompress_generic( } } - LZ4_memcpy(op, ip, length); + /* + * supports overlapping memory regions; only matters + * for in-place decompression scenarios + */ + LZ4_memmove(op, ip, length); ip += length; op += length; diff --git a/lib/lz4/lz4defs.h b/lib/lz4/lz4defs.h index c91dd96ef629..673bd206aa98 100644 --- a/lib/lz4/lz4defs.h +++ b/lib/lz4/lz4defs.h @@ -146,6 +146,7 @@ static FORCE_INLINE void LZ4_writeLE16(void *memPtr, U16 value) * environments. This is needed when decompressing the Linux Kernel, for example. */ #define LZ4_memcpy(dst, src, size) __builtin_memcpy(dst, src, size) +#define LZ4_memmove(dst, src, size) __builtin_memmove(dst, src, size) static FORCE_INLINE void LZ4_copy8(void *dst, const void *src) { From eddf2d9f76b01201dd778f2d36d75b8050217cf7 Mon Sep 17 00:00:00 2001 From: Roja Rani Yarubandi Date: Tue, 25 May 2021 18:40:51 +0530 Subject: [PATCH 134/196] i2c: qcom-geni: Suspend and resume the bus during SYSTEM_SLEEP_PM ops commit 57648e860485de39c800a89f849fdd03c2d31d15 upstream. Mark bus as suspended during system suspend to block the future transfers. Implement geni_i2c_resume_noirq() to resume the bus. Fixes: 37692de5d523 ("i2c: i2c-qcom-geni: Add bus driver for the Qualcomm GENI I2C controller") Signed-off-by: Roja Rani Yarubandi Reviewed-by: Stephen Boyd Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/busses/i2c-qcom-geni.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index 899ad2c7d67d..86f028febce3 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -702,6 +702,8 @@ static int __maybe_unused geni_i2c_suspend_noirq(struct device *dev) { struct geni_i2c_dev *gi2c = dev_get_drvdata(dev); + i2c_mark_adapter_suspended(&gi2c->adap); + if (!gi2c->suspended) { geni_i2c_runtime_suspend(dev); pm_runtime_disable(dev); @@ -711,8 +713,16 @@ static int __maybe_unused geni_i2c_suspend_noirq(struct device *dev) return 0; } +static int __maybe_unused geni_i2c_resume_noirq(struct device *dev) +{ + struct geni_i2c_dev *gi2c = dev_get_drvdata(dev); + + i2c_mark_adapter_resumed(&gi2c->adap); + return 0; +} + static const struct dev_pm_ops geni_i2c_pm_ops = { - SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(geni_i2c_suspend_noirq, NULL) + SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(geni_i2c_suspend_noirq, geni_i2c_resume_noirq) SET_RUNTIME_PM_OPS(geni_i2c_runtime_suspend, geni_i2c_runtime_resume, NULL) }; From 316de9a88c83c672c18d35bd76034d84e3769fe9 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Wed, 19 May 2021 13:32:20 +0200 Subject: [PATCH 135/196] netfilter: nf_tables: missing error reporting for not selected expressions commit c781471d67a56d7d4c113669a11ede0463b5c719 upstream. Sometimes users forget to turn on nftables extensions from Kconfig that they need. In such case, the error reporting from userspace is misleading: $ sudo nft add rule x y counter Error: Could not process rule: No such file or directory add rule x y counter ^^^^^^^^^^^^^^^^^^^^ Add missing NL_SET_BAD_ATTR() to provide a hint: $ nft add rule x y counter Error: Could not process rule: No such file or directory add rule x y counter ^^^^^^^ Fixes: 83d9dcba06c5 ("netfilter: nf_tables: extended netlink error reporting for expressions") Signed-off-by: Pablo Neira Ayuso Signed-off-by: Greg Kroah-Hartman --- net/netfilter/nf_tables_api.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 7bf7bfa0c7d9..e34d05cc5754 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -3263,8 +3263,10 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk, if (n == NFT_RULE_MAXEXPRS) goto err1; err = nf_tables_expr_parse(&ctx, tmp, &info[n]); - if (err < 0) + if (err < 0) { + NL_SET_BAD_ATTR(extack, tmp); goto err1; + } size += info[n].ops->size; n++; } From 6b53db8c4c14b4e7256f058d202908b54a7b85b4 Mon Sep 17 00:00:00 2001 From: Roger Pau Monne Date: Mon, 7 Jun 2021 15:13:15 +0200 Subject: [PATCH 136/196] xen-netback: take a reference to the RX task thread MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 107866a8eb0b664675a260f1ba0655010fac1e08 upstream. Do this in order to prevent the task from being freed if the thread returns (which can be triggered by the frontend) before the call to kthread_stop done as part of the backend tear down. Not taking the reference will lead to a use-after-free in that scenario. Such reference was taken before but dropped as part of the rework done in 2ac061ce97f4. Reintroduce the reference taking and add a comment this time explaining why it's needed. This is XSA-374 / CVE-2021-28691. Fixes: 2ac061ce97f4 ('xen/netback: cleanup init and deinit code') Signed-off-by: Roger Pau Monné Cc: stable@vger.kernel.org Reviewed-by: Jan Beulich Reviewed-by: Juergen Gross Signed-off-by: Juergen Gross Signed-off-by: Greg Kroah-Hartman --- drivers/net/xen-netback/interface.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index e02a4fbb74de..7ce9807fc24c 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -685,6 +685,7 @@ static void xenvif_disconnect_queue(struct xenvif_queue *queue) { if (queue->task) { kthread_stop(queue->task); + put_task_struct(queue->task); queue->task = NULL; } @@ -745,6 +746,11 @@ int xenvif_connect_data(struct xenvif_queue *queue, if (IS_ERR(task)) goto kthread_err; queue->task = task; + /* + * Take a reference to the task in order to prevent it from being freed + * if the thread function returns before kthread_stop is called. + */ + get_task_struct(task); task = kthread_run(xenvif_dealloc_kthread, queue, "%s-dealloc", queue->name); From d17d47da59f726dc4c87caebda3a50333d7e2fd3 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Mon, 7 Jun 2021 11:35:30 -0600 Subject: [PATCH 137/196] neighbour: allow NUD_NOARP entries to be forced GCed commit 7a6b1ab7475fd6478eeaf5c9d1163e7a18125c8f upstream. IFF_POINTOPOINT interfaces use NUD_NOARP entries for IPv6. It's possible to fill up the neighbour table with enough entries that it will overflow for valid connections after that. This behaviour is more prevalent after commit 58956317c8de ("neighbor: Improve garbage collection") is applied, as it prevents removal from entries that are not NUD_FAILED, unless they are more than 5s old. Fixes: 58956317c8de (neighbor: Improve garbage collection) Reported-by: Kasper Dupont Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: David Ahern Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/core/neighbour.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/core/neighbour.c b/net/core/neighbour.c index a18c2973b8c6..c452ebf20939 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -239,6 +239,7 @@ static int neigh_forced_gc(struct neigh_table *tbl) write_lock(&n->lock); if ((n->nud_state == NUD_FAILED) || + (n->nud_state == NUD_NOARP) || (tbl->is_multicast && tbl->is_multicast(n->primary_key)) || time_after(tref, n->updated)) From 951358a824f96be927ae50fad1e72e05bbb57b56 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 10 Jun 2021 13:39:29 +0200 Subject: [PATCH 138/196] Linux 5.10.43 Link: https://lore.kernel.org/r/20210608175942.377073879@linuxfoundation.org Tested-by: Shuah Khan Tested-by: Jon Hunter Tested-by: Linux Kernel Functional Testing Tested-by: Jason Self Tested-by: Salvatore Bonaccorso Tested-by: Florian Fainelli Tested-by: Guenter Roeck Tested-by: Pavel Machek (CIP) Tested-by: Sudip Mukherjee Signed-off-by: Greg Kroah-Hartman --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 290903d0e7da..ec9ee8032a98 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 VERSION = 5 PATCHLEVEL = 10 -SUBLEVEL = 42 +SUBLEVEL = 43 EXTRAVERSION = NAME = Dare mighty things From 12be942aad344367fae270f07563ebd991e32304 Mon Sep 17 00:00:00 2001 From: Vinayak Menon Date: Thu, 10 Jun 2021 22:51:56 +0530 Subject: [PATCH 139/196] ANDROID: GKI: Update abi_gki_aarch64_qcom list for shmem reclaim Commit 9975da5f43bb (ANDROID: mm: allow fast reclaim of shmem pages) added support for fast shmem reclaim. Update allowed list with symbols for the feature implementation. Leaf changes summary: 1 artifact changed Changed leaf types summary: 0 leaf type changed Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable 1 Added function: [A] 'function void shmem_mark_page_lazyfree(page*)' Bug: 187798288 Change-Id: If4e63537caca2867a9aac0cfbe5dcea2e5ab46a3 Signed-off-by: Vinayak Menon --- android/abi_gki_aarch64.xml | 299 ++++++++++++++++++----------------- android/abi_gki_aarch64_qcom | 1 + 2 files changed, 153 insertions(+), 147 deletions(-) diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml index 5765c9ea961e..12cc9b40f106 100644 --- a/android/abi_gki_aarch64.xml +++ b/android/abi_gki_aarch64.xml @@ -3551,6 +3551,7 @@ + @@ -18374,7 +18375,7 @@ - + @@ -18390,7 +18391,7 @@ - + @@ -85296,7 +85297,7 @@ - + @@ -85304,7 +85305,7 @@ - + @@ -85318,7 +85319,7 @@ - + @@ -85550,7 +85551,7 @@ - + @@ -85561,7 +85562,7 @@ - + @@ -85569,7 +85570,7 @@ - + @@ -86301,7 +86302,7 @@ - + @@ -89845,7 +89846,7 @@ - + @@ -90198,7 +90199,7 @@ - + @@ -90360,7 +90361,7 @@ - + @@ -90503,7 +90504,7 @@ - + @@ -91015,7 +91016,7 @@ - + @@ -91079,7 +91080,7 @@ - + @@ -91136,7 +91137,7 @@ - + @@ -91283,7 +91284,7 @@ - + @@ -91314,7 +91315,7 @@ - + @@ -91325,7 +91326,7 @@ - + @@ -91584,7 +91585,7 @@ - + @@ -91603,7 +91604,7 @@ - + @@ -91651,7 +91652,7 @@ - + @@ -91775,7 +91776,7 @@ - + @@ -91796,7 +91797,7 @@ - + @@ -91833,7 +91834,7 @@ - + @@ -91927,7 +91928,7 @@ - + @@ -91986,7 +91987,7 @@ - + @@ -116831,16 +116832,16 @@ - - - - + + + + @@ -118437,14 +118438,14 @@ - - - - + + + + @@ -121145,8 +121146,8 @@ - - + + @@ -125457,23 +125458,23 @@ - - + + - - - - - + + + + + - - + + - - + + @@ -125481,21 +125482,21 @@ - - - + + + - - + + - - + + - - + + @@ -151470,39 +151471,39 @@ - - - + + + - - - - - - - - - + + + + + + + + + - + - + - - - + + + - - - + + + - + @@ -151512,13 +151513,13 @@ - - - + + + - - + + @@ -151567,94 +151568,94 @@ - - + + - - + + - - - + + + - - + + - - - - + + + + - - - - + + + + - - - + + + - - - + + + - - - + + + - - + + - - + + - - - - - + + + + + - - + + - - - - + + + + - - - - + + + + - - + + - - - - + + + + - - - + + + @@ -165660,6 +165661,10 @@ + + + + @@ -165900,20 +165905,20 @@ - - + + - - - + + + - - - - - + + + + + diff --git a/android/abi_gki_aarch64_qcom b/android/abi_gki_aarch64_qcom index 329a7fc9e442..bb7559784e04 100644 --- a/android/abi_gki_aarch64_qcom +++ b/android/abi_gki_aarch64_qcom @@ -2128,6 +2128,7 @@ sg_pcopy_from_buffer sg_pcopy_to_buffer sg_scsi_ioctl + shmem_mark_page_lazyfree shmem_truncate_range show_rcu_gp_kthreads show_regs From a685bf3fce625a5ce3675b3bcf73266a759e5fbd Mon Sep 17 00:00:00 2001 From: lijianzhong Date: Mon, 31 May 2021 17:39:46 +0800 Subject: [PATCH 140/196] ANDROID: export cpuset_cpus_allowed()for GKI purpose. Exporting the symbol cpuset_cpus_allowed(), in which ko module can do cpuset operation in vendor hook related code. Bug: 189725786 Signed-off-by: lijianzhong Change-Id: I7919a893ab64bb441ab43cbb0b16825ed76d802d --- kernel/cgroup/cpuset.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index a373654da841..6b9678df06f1 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -3336,7 +3336,7 @@ void cpuset_cpus_allowed(struct task_struct *tsk, struct cpumask *pmask) rcu_read_unlock(); spin_unlock_irqrestore(&callback_lock, flags); } - +EXPORT_SYMBOL_GPL(cpuset_cpus_allowed); /** * cpuset_cpus_allowed_fallback - final fallback before complete catastrophe. * @tsk: pointer to task_struct with which the scheduler is struggling From 623c68fc8578baaa423e16cc2a38aafeb3eb6dd8 Mon Sep 17 00:00:00 2001 From: Mayank Rana Date: Wed, 9 Jun 2021 00:35:35 -0700 Subject: [PATCH 141/196] FROMGIT: usb: typec: ucsi: Clear PPM capability data in ucsi_init() error path If ucsi_init() fails for some reason (e.g. ucsi_register_port() fails or general communication failure to the PPM), particularly at any point after the GET_CAPABILITY command had been issued, this results in unwinding the initialization and returning an error. However the ucsi structure's ucsi_capability member retains its current value, including likely a non-zero num_connectors. And because ucsi_init() itself is done in a workqueue a UCSI interface driver will be unaware that it failed and may think the ucsi_register() call was completely successful. Later, if ucsi_unregister() is called, due to this stale ucsi->cap value it would try to access the items in the ucsi->connector array which might not be in a proper state or not even allocated at all and results in NULL or invalid pointer dereference. Fix this by clearing the ucsi->cap value to 0 during the error path of ucsi_init() in order to prevent a later ucsi_unregister() from entering the connector cleanup loop. Fixes: c1b0bc2dabfa ("usb: typec: Add support for UCSI interface") Cc: stable@vger.kernel.org Acked-by: Heikki Krogerus Signed-off-by: Mayank Rana Signed-off-by: Jack Pham Link: https://lore.kernel.org/r/20210609073535.5094-1-jackp@codeaurora.org Signed-off-by: Greg Kroah-Hartman (cherry picked from commit f247f0a82a4f8c3bfed178d8fd9e069d1424ee4e https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-linus) Signed-off-by: Greg Kroah-Hartman Change-Id: I94fca64988d86bb4dd762d9fe4070c0e159b4e9a --- drivers/usb/typec/ucsi/ucsi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index 7104ddb9696d..0c4a0f1ac044 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -1253,6 +1253,7 @@ err_unregister: } err_reset: + memset(&ucsi->cap, 0, sizeof(ucsi->cap)); ucsi_reset_ppm(ucsi); err: return ret; From 6227516eed8ec2bb64d7db75ac37ca6297909378 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Wed, 9 Jun 2021 17:21:32 -0700 Subject: [PATCH 142/196] FROMGIT: usb: typec: mux: Fix copy-paste mistake in typec_mux_match Fix the copy-paste mistake in the return path of typec_mux_match(), where dev is considered a member of struct typec_switch rather than struct typec_mux. The two structs are identical in regards to having the struct device as the first entry, so this provides no functional change. Fixes: 3370db35193b ("usb: typec: Registering real device entries for the muxes") Reviewed-by: Heikki Krogerus Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20210610002132.3088083-1-bjorn.andersson@linaro.org Signed-off-by: Greg Kroah-Hartman (cherry picked from commit 142d0b24c1b17139f1aaaacae7542a38aa85640f https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-linus) Signed-off-by: Greg Kroah-Hartman Change-Id: Ia0f6b86af57c5d9339db05373605ee71a51306e6 --- drivers/usb/typec/mux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c index 42acdc8b684f..b9035c3407b5 100644 --- a/drivers/usb/typec/mux.c +++ b/drivers/usb/typec/mux.c @@ -239,7 +239,7 @@ find_mux: dev = class_find_device(&typec_mux_class, NULL, fwnode, mux_fwnode_match); - return dev ? to_typec_switch(dev) : ERR_PTR(-EPROBE_DEFER); + return dev ? to_typec_mux(dev) : ERR_PTR(-EPROBE_DEFER); } /** From fb49b843af270d99e086e95ae2057379361faff2 Mon Sep 17 00:00:00 2001 From: Maulik Shah Date: Tue, 8 Jun 2021 14:33:31 +0530 Subject: [PATCH 143/196] ANDROID: cpuidle-psci: Add vendor hook for cpuidle psci enter and exit Add vendor hook for cpuidle to allow vendor modules for s2idle enhancements. Bug: 190353898 Change-Id: I02b1393e6119e32eae96010ba5951405dbdada2b Signed-off-by: Maulik Shah --- drivers/android/vendor_hooks.c | 3 +++ drivers/cpuidle/cpuidle-psci.c | 5 +++++ include/trace/hooks/cpuidle_psci.h | 25 +++++++++++++++++++++++++ 3 files changed, 33 insertions(+) create mode 100644 include/trace/hooks/cpuidle_psci.h diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c index 9f895faa209b..8768e7e6c61a 100644 --- a/drivers/android/vendor_hooks.c +++ b/drivers/android/vendor_hooks.c @@ -61,6 +61,7 @@ #include #include #include +#include /* * Export tracepoints that act as a bare tracehook (ie: have no trace event @@ -318,3 +319,5 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_force_compatible_post); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alloc_uid); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_free_user); EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_balance_anon_file_reclaim); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpuidle_psci_enter); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpuidle_psci_exit); diff --git a/drivers/cpuidle/cpuidle-psci.c b/drivers/cpuidle/cpuidle-psci.c index b51b5df08450..efc063ffc683 100644 --- a/drivers/cpuidle/cpuidle-psci.c +++ b/drivers/cpuidle/cpuidle-psci.c @@ -25,6 +25,7 @@ #include #include +#include #include "cpuidle-psci.h" #include "dt_idle_states.h" @@ -67,6 +68,8 @@ static int __psci_enter_domain_idle_state(struct cpuidle_device *dev, if (ret) return -1; + trace_android_vh_cpuidle_psci_enter(dev, s2idle); + /* Do runtime PM to manage a hierarchical CPU toplogy. */ rcu_irq_enter_irqson(); if (s2idle) @@ -88,6 +91,8 @@ static int __psci_enter_domain_idle_state(struct cpuidle_device *dev, pm_runtime_get_sync(pd_dev); rcu_irq_exit_irqson(); + trace_android_vh_cpuidle_psci_exit(dev, s2idle); + cpu_pm_exit(); /* Clear the domain state to start fresh when back from idle. */ diff --git a/include/trace/hooks/cpuidle_psci.h b/include/trace/hooks/cpuidle_psci.h new file mode 100644 index 000000000000..94b01eba0b4e --- /dev/null +++ b/include/trace/hooks/cpuidle_psci.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM cpuidle_psci +#define TRACE_INCLUDE_PATH trace/hooks +#if !defined(_TRACE_HOOK_CPUIDLE_PSCI_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_HOOK_CPUIDLE_PSCI_H +#include +#include +/* + * Following tracepoints are not exported in tracefs and provide a + * mechanism for vendor modules to hook and extend functionality + */ + +struct cpuidle_device; +DECLARE_HOOK(android_vh_cpuidle_psci_enter, + TP_PROTO(struct cpuidle_device *dev, bool s2idle), + TP_ARGS(dev, s2idle)); + +DECLARE_HOOK(android_vh_cpuidle_psci_exit, + TP_PROTO(struct cpuidle_device *dev, bool s2idle), + TP_ARGS(dev, s2idle)); + +#endif /* _TRACE_HOOK_CPUIDLE_PSCI_H */ +/* This part must be outside protection */ +#include From 5fd82d311556fdacbb080dcfe61920ec1a28dc7e Mon Sep 17 00:00:00 2001 From: Maulik Shah Date: Tue, 8 Jun 2021 14:35:10 +0530 Subject: [PATCH 144/196] ANDROID: gic-v3: Export gic_resume() for vendor GIC enhancements syscore ops in gic-v3 takes care of invoking gic_resume() when exiting from "deep" suspend. However for "s2idle" suspend syscore ops will not get invoked. Vendor modules can register for s2idle notifications and invoke gic_resume() when the first cpu is waking up from s2idle. Bug: 190353898 Change-Id: I3d565ed3fd0fcada2231b10415dcf487fefc7c5f Signed-off-by: Maulik Shah --- drivers/irqchip/irq-gic-v3.c | 4 +++- include/linux/irqchip/arm-gic-v3.h | 2 ++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index cc5c36dfcb74..078935a25afd 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -1267,10 +1267,11 @@ static inline void gic_cpu_pm_init(void) { } #endif /* CONFIG_CPU_PM */ #ifdef CONFIG_PM -static void gic_resume(void) +void gic_resume(void) { trace_android_vh_gic_resume(gic_data.domain, gic_data.dist_base); } +EXPORT_SYMBOL_GPL(gic_resume); static struct syscore_ops gic_syscore_ops = { .resume = gic_resume, @@ -1283,6 +1284,7 @@ static void gic_syscore_init(void) #else static inline void gic_syscore_init(void) { } +void gic_resume(void) { } #endif diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h index f6d092fdb93d..ffb0a87055b1 100644 --- a/include/linux/irqchip/arm-gic-v3.h +++ b/include/linux/irqchip/arm-gic-v3.h @@ -708,6 +708,8 @@ static inline bool gic_enable_sre(void) return !!(val & ICC_SRE_EL1_SRE); } +void gic_resume(void); + #endif #endif From 8cc6bf3aaf24d78ecc4770963e54775def3e72c3 Mon Sep 17 00:00:00 2001 From: Maulik Shah Date: Thu, 10 Jun 2021 10:27:31 +0530 Subject: [PATCH 145/196] ANDROID: abi_gki_aarch64_qcom: Add cpuidle_psci and gic_resume symbols This change adds cpuidle_psci_enter, cpuidle_psci_exit and gic_resume tracepoint to whitelist. Leaf changes summary: 7 artifacts changed Changed leaf types summary: 0 leaf type changed Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 4 Added functions Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 3 Added variables 4 Added functions: [A] 'function int __traceiter_android_vh_cpuidle_psci_enter(void*, cpuidle_device*, bool)' [A] 'function int __traceiter_android_vh_cpuidle_psci_exit(void*, cpuidle_device*, bool)' [A] 'function int __traceiter_android_vh_gic_resume(void*, irq_domain*, void*)' [A] 'function void gic_resume()' 3 Added variables: [A] 'tracepoint __tracepoint_android_vh_cpuidle_psci_enter' [A] 'tracepoint __tracepoint_android_vh_cpuidle_psci_exit' [A] 'tracepoint __tracepoint_android_vh_gic_resume' Bug: 190353898 Change-Id: I2a373fcd0aaa28436fc4706e8dcbafb612bc340b Signed-off-by: Maulik Shah --- android/abi_gki_aarch64.xml | 127 ++++++++++++++++++++++++++++------- android/abi_gki_aarch64_qcom | 7 ++ 2 files changed, 111 insertions(+), 23 deletions(-) diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml index 12cc9b40f106..63c20dad7282 100644 --- a/android/abi_gki_aarch64.xml +++ b/android/abi_gki_aarch64.xml @@ -304,6 +304,8 @@ + + @@ -316,6 +318,7 @@ + @@ -1914,6 +1917,7 @@ + @@ -4686,6 +4690,8 @@ + + @@ -4698,6 +4704,7 @@ + @@ -30384,21 +30391,21 @@ - + - + - + - + - + - + @@ -32009,7 +32016,20 @@ - + + + + + + + + + + + + + + @@ -32524,48 +32544,48 @@ - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + @@ -33154,6 +33174,7 @@ + @@ -33540,6 +33561,17 @@ + + + + + + + + + + + @@ -44702,6 +44734,7 @@ + @@ -44760,6 +44793,8 @@ + + @@ -45339,6 +45374,12 @@ + + + + + + @@ -45528,6 +45569,18 @@ + + + + + + + + + + + + @@ -82827,6 +82880,9 @@ + + + @@ -99569,7 +99625,20 @@ - + + + + + + + + + + + + + + @@ -169059,10 +169128,22 @@ + + + + + + + + + + + + diff --git a/android/abi_gki_aarch64_qcom b/android/abi_gki_aarch64_qcom index bb7559784e04..39ef2d1c143c 100644 --- a/android/abi_gki_aarch64_qcom +++ b/android/abi_gki_aarch64_qcom @@ -985,6 +985,7 @@ get_zeroed_page gfp_zone gic_nonsecure_priorities + gic_resume gov_attr_set_init gov_attr_set_put governor_sysfs_ops @@ -2469,6 +2470,8 @@ __traceiter_android_vh_binder_wakeup_ilocked __traceiter_android_vh_cpu_idle_enter __traceiter_android_vh_cpu_idle_exit + __traceiter_android_vh_cpuidle_psci_enter + __traceiter_android_vh_cpuidle_psci_exit __traceiter_android_vh_dump_throttled_rt_tasks __traceiter_android_vh_force_compatible_post __traceiter_android_vh_force_compatible_pre @@ -2478,6 +2481,7 @@ __traceiter_android_vh_ftrace_oops_enter __traceiter_android_vh_ftrace_oops_exit __traceiter_android_vh_ftrace_size_check + __traceiter_android_vh_gic_resume __traceiter_android_vh_gpio_block_read __traceiter_android_vh_iommu_setup_dma_ops __traceiter_android_vh_ipi_stop @@ -2561,6 +2565,8 @@ __tracepoint_android_vh_check_uninterruptible_tasks_dn __tracepoint_android_vh_cpu_idle_enter __tracepoint_android_vh_cpu_idle_exit + __tracepoint_android_vh_cpuidle_psci_enter + __tracepoint_android_vh_cpuidle_psci_exit __tracepoint_android_vh_dump_throttled_rt_tasks __tracepoint_android_vh_force_compatible_post __tracepoint_android_vh_force_compatible_pre @@ -2570,6 +2576,7 @@ __tracepoint_android_vh_ftrace_oops_enter __tracepoint_android_vh_ftrace_oops_exit __tracepoint_android_vh_ftrace_size_check + __tracepoint_android_vh_gic_resume __tracepoint_android_vh_gpio_block_read __tracepoint_android_vh_iommu_setup_dma_ops __tracepoint_android_vh_ipi_stop From 259e0a28b9aa75278caa5d8ac8fa83ec09da49d0 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 10 Nov 2020 09:49:11 +0100 Subject: [PATCH 146/196] UPSTREAM: nl80211: fix kernel-doc warning in the new SAE attribute Format the items as a definition list, to avoid the warning from the rst parsing. Fixes: 9f0ffa418483 ("cfg80211: Add support to configure SAE PWE value to drivers") Link: https://lore.kernel.org/r/20201110094911.bb020e863aa0.I960caf90e2a8cc23f6bf9245d77524df6a4d8f37@changeid Signed-off-by: Johannes Berg (cherry picked from commit da1e9dd3a11cda85b58dafe64f091734934b2f6c) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Ia962bcdbc52f2019ff0ef957b512915bfc921fad --- include/net/cfg80211.h | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 443f901931e8..fab23df83050 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1008,14 +1008,21 @@ struct survey_info { * @sae_pwd: password for SAE authentication (for devices supporting SAE * offload) * @sae_pwd_len: length of SAE password (for devices supporting SAE offload) - * @sae_pwe: The mechanisms allowed for SAE PWE derivation - * NL80211_SAE_PWE_UNSPECIFIED: Not-specified, used to indicate userspace - * did not specify any preference. The driver should follow its - * internal policy in such a scenario. - * NL80211_SAE_PWE_HUNT_AND_PECK: Allow hunting-and-pecking loop only - * NL80211_SAE_PWE_HASH_TO_ELEMENT: Allow hash-to-element only - * NL80211_SAE_PWE_BOTH: Allow either hunting-and-pecking loop - * or hash-to-element + * @sae_pwe: The mechanisms allowed for SAE PWE derivation: + * + * NL80211_SAE_PWE_UNSPECIFIED + * Not-specified, used to indicate userspace did not specify any + * preference. The driver should follow its internal policy in + * such a scenario. + * + * NL80211_SAE_PWE_HUNT_AND_PECK + * Allow hunting-and-pecking loop only + * + * NL80211_SAE_PWE_HASH_TO_ELEMENT + * Allow hash-to-element only + * + * NL80211_SAE_PWE_BOTH + * Allow either hunting-and-pecking loop or hash-to-element */ struct cfg80211_crypto_settings { u32 wpa_versions; From 4fef0d39b85f97740e4c5fa42eb0d9def20d12ac Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 30 Nov 2020 11:04:10 -0600 Subject: [PATCH 147/196] UPSTREAM: signal/parisc: Remove parisc specific definition of __ARCH_UAPI_SA_FLAGS Randy Dunlap wrote: > On 11/27/20 10:43 AM, Randy Dunlap wrote: > > > on parisc, _SA_SIGGFAULT is undefined and causing build errors. > > > > commit 23acdc76f1798b090bb9dcc90671cd29d929834e > > Author: Peter Collingbourne > > Date: Thu Nov 12 18:53:34 2020 -0800 > > > > signal: clear non-uapi flag bits when passing/returning sa_flags > > > > > > > > _SA_SIGGFAULT is not used or defined anywhere else in the > > kernel source tree. > > > Here is the build error (although it should be obvious): > > ../kernel/signal.c: In function 'do_sigaction': > ../arch/parisc/include/asm/signal.h:24:30: error: '_SA_SIGGFAULT' undeclared (first use in this function) > 24 | #define __ARCH_UAPI_SA_FLAGS _SA_SIGGFAULT > | ^~~~~~~~~~~~~ Stephen Rothwell pointed out: > _SA_SIGGFAULT was removed by commit > > 41f5a81c07cd ("parisc: Drop HP-UX specific fcntl and signal flags") > > which was added to Linus' tree in v5.10-rc1. Solve this by removing the the parisc specific definition of __ARCH_UAPI_SA_FLAGS that was just added. Reported-by: Randy Dunlap Acked-by: Randy Dunlap # build-tested Fixes: 23acdc76f179 ("signal: clear non-uapi flag bits when passing/returning sa_flags") Signed-off-by: "Eric W. Biederman" (cherry picked from commit bc54a5cda97917155b8da0d99afe1dc0ed0b30db) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I0240e7d93d32f2e7d5bb997888ae168a87111776 --- arch/parisc/include/asm/signal.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/parisc/include/asm/signal.h b/arch/parisc/include/asm/signal.h index 30dd1e43ef88..715c96ba2ec8 100644 --- a/arch/parisc/include/asm/signal.h +++ b/arch/parisc/include/asm/signal.h @@ -21,8 +21,6 @@ typedef struct { unsigned long sig[_NSIG_WORDS]; } sigset_t; -#define __ARCH_UAPI_SA_FLAGS _SA_SIGGFAULT - #include #endif /* !__ASSEMBLY */ From 4e0d16b0491c235ec34fa6989f38443bae6404d0 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Wed, 16 Dec 2020 00:49:31 +0000 Subject: [PATCH 148/196] UPSTREAM: dma-buf: cma_heap: Include linux/vmalloc.h to fix build failures on MIPS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We need to include in order for MIPS to find vmap(), as it doesn't otherwise get included there. Without this patch, one can hit the following build error: drivers/dma-buf/heaps/cma_heap.c: In function 'cma_heap_do_vmap': drivers/dma-buf/heaps/cma_heap.c:195:10: error: implicit declaration of function 'vmap' Cc: Sumit Semwal Cc: Liam Mark Cc: Laura Abbott Cc: Brian Starkey Cc: Hridya Valsaraju Cc: Suren Baghdasaryan Cc: Sandeep Patil Cc: Daniel Mentz Cc: Chris Goldsworthy Cc: Ørjan Eide Cc: Robin Murphy Cc: Ezequiel Garcia Cc: Simon Ser Cc: James Jones Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Fixes: a5d2d29e24be ("dma-buf: heaps: Move heap-helper logic into the cma_heap implementation") Reported-by: Guenter Roeck Signed-off-by: John Stultz Signed-off-by: Sumit Semwal Link: https://patchwork.freedesktop.org/patch/msgid/20201216004931.113505-1-john.stultz@linaro.org (cherry picked from commit 8075c3005e4b1efa12dbbf6e84bc412a713de92c) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Icc1f312d846620ce6900c8b4dbb2a26e1bc59e9a --- drivers/dma-buf/heaps/cma_heap.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/dma-buf/heaps/cma_heap.c b/drivers/dma-buf/heaps/cma_heap.c index b02b7e0a0432..4931578df815 100644 --- a/drivers/dma-buf/heaps/cma_heap.c +++ b/drivers/dma-buf/heaps/cma_heap.c @@ -20,6 +20,7 @@ #include #include #include +#include struct cma_heap { From 631b4dba043a0eb8c0e187353e8fb00b86c56e39 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 25 Dec 2020 10:50:04 -0800 Subject: [PATCH 149/196] UPSTREAM: regulator: qcom-rpmh: fix build after QCOM_COMMAND_DB is tristate Restrict REGULATOR_QCOM_RPMH to QCOM_COMMAND_DB it the latter is enabled. Fixes this build error: microblaze-linux-ld: drivers/regulator/qcom-rpmh-regulator.o: in function `rpmh_regulator_probe': (.text+0x354): undefined reference to `cmd_db_read_addr' Fixes: 778279f4f5e4 ("soc: qcom: cmd-db: allow loading as a module") Reported-by: kernel test robot Signed-off-by: Randy Dunlap Cc: Lina Iyer Cc: Liam Girdwood Cc: Mark Brown Reviewed-by: Lina Iyer Link: https://lore.kernel.org/r/20201225185004.20747-1-rdunlap@infradead.org Signed-off-by: Mark Brown (cherry picked from commit ac6b559d818981406e587f4784777e9112d553f4) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Ic3d87283b9181134416c7c46d2bbc6ed33c7f68a --- drivers/regulator/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 5617c56fbe9b..e16967d9fbe9 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -853,6 +853,7 @@ config REGULATOR_QCOM_RPM config REGULATOR_QCOM_RPMH tristate "Qualcomm Technologies, Inc. RPMh regulator driver" depends on QCOM_RPMH || COMPILE_TEST + depends on QCOM_COMMAND_DB || !QCOM_COMMAND_DB help This driver supports control of PMIC regulators via the RPMh hardware block found on Qualcomm Technologies Inc. SoCs. RPMh regulator From e11b323bca365d6fd56f022721854c666ed3537e Mon Sep 17 00:00:00 2001 From: Alexander Lobakin Date: Thu, 21 Jan 2021 18:45:55 +0000 Subject: [PATCH 150/196] UPSTREAM: kbuild: prevent CC_FLAGS_LTO self-bloating on recursive rebuilds CC_FLAGS_LTO gets initialized only via +=, never with := or =. When building with CONFIG_TRIM_UNUSED_KSYMS, Kbuild may perform several kernel rebuilds to satisfy symbol dependencies. In this case, value of CC_FLAGS_LTO is concatenated each time, which triggers a full rebuild. Initialize it with := to fix this. Fixes: dc5723b02e52 ("kbuild: add support for Clang LTO") Signed-off-by: Alexander Lobakin Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20210121184544.659998-1-alobakin@pm.me (cherry picked from commit 2b8689520520175075ca97bc4eaf51ff3f7253aa) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Id12534c0bfaec21e72b534a5a032161ff4606c73 --- Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Makefile b/Makefile index 4063ee2d4031..0b68f6a5d343 100644 --- a/Makefile +++ b/Makefile @@ -917,10 +917,10 @@ endif ifdef CONFIG_LTO_CLANG ifdef CONFIG_LTO_CLANG_THIN -CC_FLAGS_LTO += -flto=thin -fsplit-lto-unit +CC_FLAGS_LTO := -flto=thin -fsplit-lto-unit KBUILD_LDFLAGS += --thinlto-cache-dir=$(extmod-prefix).thinlto-cache else -CC_FLAGS_LTO += -flto +CC_FLAGS_LTO := -flto endif ifeq ($(SRCARCH),x86) From 4150d738160a87bd4c63eefb9bfac54547350748 Mon Sep 17 00:00:00 2001 From: Sami Tolvanen Date: Wed, 24 Feb 2021 14:57:06 -0800 Subject: [PATCH 151/196] UPSTREAM: parisc: select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY parisc uses -fpatchable-function-entry with dynamic ftrace, which means we don't need recordmcount. Select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY to tell that to the build system. Reported-by: Guenter Roeck Fixes: 3b15cdc15956 ("tracing: move function tracer options to Kconfig") Signed-off-by: Sami Tolvanen Tested-by: Guenter Roeck Tested-by: Kees Cook Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20210224225706.2726050-1-samitolvanen@google.com (cherry picked from commit 3d1dc719bca9988e08a8d68363a5c2514ccaf5d4) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Id8d1f4ac0ed6b0e94566db229b4c45773d7891f1 --- arch/parisc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 14f3252f2da0..ecfd7af35094 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -61,6 +61,7 @@ config PARISC select HAVE_KRETPROBES select HAVE_DYNAMIC_FTRACE if $(cc-option,-fpatchable-function-entry=1,1) select HAVE_FTRACE_MCOUNT_RECORD if HAVE_DYNAMIC_FTRACE + select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY if DYNAMIC_FTRACE select HAVE_KPROBES_ON_FTRACE select HAVE_DYNAMIC_FTRACE_WITH_REGS select SET_FS From b1843022a9ab6fd96446cfd52aad5de1edf71764 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 26 Feb 2021 04:39:12 +0900 Subject: [PATCH 152/196] UPSTREAM: kbuild: Move .thinlto-cache removal to 'make clean' Instead of 'make distclean', 'make clean' should remove build artifacts unneeded by external module builds. Obviously, you do not need to keep this directory. Fixes: dc5723b02e52 ("kbuild: add support for Clang LTO") Signed-off-by: Masahiro Yamada Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20210225193912.3303604-1-masahiroy@kernel.org (cherry picked from commit 4c7858b9001c85aacf86a74b3a68aa384bc33760) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I2126e71b9cf7d70e7192ac267f6b7d8fdf985bd3 --- Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Makefile b/Makefile index 0b68f6a5d343..a02ff83db869 100644 --- a/Makefile +++ b/Makefile @@ -1568,7 +1568,7 @@ endif # CONFIG_MODULES # Directories & files removed with 'make clean' CLEAN_FILES += include/ksym vmlinux.symvers modules-only.symvers \ modules.builtin modules.builtin.modinfo modules.nsdeps \ - compile_commands.json + compile_commands.json .thinlto-cache # Directories & files removed with 'make mrproper' MRPROPER_FILES += include/config include/generated \ @@ -1582,7 +1582,7 @@ MRPROPER_FILES += include/config include/generated \ *.spec # Directories & files removed with 'make distclean' -DISTCLEAN_FILES += tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS .thinlto-cache +DISTCLEAN_FILES += tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS # clean - Delete most, but leave enough to build external modules # From 9bf26f0acef1d4ce66bca4069f5edd44f8a8c235 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 24 Feb 2021 09:37:38 +0000 Subject: [PATCH 153/196] UPSTREAM: arm64: Add missing ISB after invalidating TLB in enter_vhe Although there has been a bit of back and forth on the subject, it appears that invalidating TLBs requires an ISB instruction after the TLBI/DSB sequence when FEAT_ETS is not implemented by the CPU. From the bible: | In an implementation that does not implement FEAT_ETS, a TLB | maintenance instruction executed by a PE, PEx, can complete at any | time after it is issued, but is only guaranteed to be finished for a | PE, PEx, after the execution of DSB by the PEx followed by a Context | synchronization event Add the missing ISB in enter_vhe(), just in case. Fixes: f359182291c7 ("arm64: Provide an 'upgrade to VHE' stub hypercall") Suggested-by: Will Deacon Signed-off-by: Marc Zyngier Acked-by: Mark Rutland Link: https://lore.kernel.org/r/20210224093738.3629662-4-maz@kernel.org Signed-off-by: Will Deacon (cherry picked from commit 430251cc864beb11ac5b6d2f5c6ef54ddd432612) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Id50f6f18605f0110afcee58a0cda34260235cccd --- arch/arm64/kernel/hyp-stub.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/kernel/hyp-stub.S b/arch/arm64/kernel/hyp-stub.S index 6e0937556203..05d25e645b46 100644 --- a/arch/arm64/kernel/hyp-stub.S +++ b/arch/arm64/kernel/hyp-stub.S @@ -153,6 +153,7 @@ SYM_CODE_START_LOCAL(enter_vhe) // Invalidate TLBs before enabling the MMU tlbi vmalle1 dsb nsh + isb // Enable the EL2 S1 MMU, as set up from EL1 mrs_s x0, SYS_SCTLR_EL12 From f107d073cefed8f64a0a696c4878769b9872240f Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 25 Feb 2021 15:34:49 +0100 Subject: [PATCH 154/196] UPSTREAM: kbuild: lto: add _mcount to list of used symbols Some randconfig builds fail with undefined references to _mcount when CONFIG_TRIM_UNUSED_KSYMS is set: ERROR: modpost: "_mcount" [drivers/tee/optee/optee.ko] undefined! ERROR: modpost: "_mcount" [drivers/fsi/fsi-occ.ko] undefined! ERROR: modpost: "_mcount" [drivers/fpga/dfl-pci.ko] undefined! Since there is already a list of symbols that get generated at link time, add this one as well. Fixes: fbe078d397b4 ("kbuild: lto: add a default list of used symbols") Signed-off-by: Arnd Bergmann Signed-off-by: Masahiro Yamada (cherry picked from commit da83616bcd3fa84233f6e37e2cf8cbfa979c6927) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I9e19b85b5ea81b1a0af3e835ed5f92c8a9c55765 --- scripts/lto-used-symbols.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/lto-used-symbols.txt b/scripts/lto-used-symbols.txt index 38e7bb9ebaae..406ada65e926 100644 --- a/scripts/lto-used-symbols.txt +++ b/scripts/lto-used-symbols.txt @@ -1,5 +1,6 @@ memcpy memmove memset +_mcount __stack_chk_fail __stack_chk_guard From 2fc5237198c9373444b8cb3157c1c38a965a9f49 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 26 Feb 2021 15:25:48 +0900 Subject: [PATCH 155/196] BACKPORT: kbuild: fix UNUSED_KSYMS_WHITELIST for Clang LTO Commit fbe078d397b4 ("kbuild: lto: add a default list of used symbols") does not work as expected if the .config file has already specified CONFIG_UNUSED_KSYMS_WHITELIST="my/own/white/list" before enabling CONFIG_LTO_CLANG. So, the user-supplied whitelist and LTO-specific white list must be independent of each other. I refactored the shell script so CONFIG_MODVERSIONS and CONFIG_CLANG_LTO handle whitelists in the same way. Fixes: fbe078d397b4 ("kbuild: lto: add a default list of used symbols") Signed-off-by: Masahiro Yamada Tested-by: Sedat Dilek (cherry picked from commit a6aaeb841198016083663ae56c568de4e065d090) [fix conflicts due to renaming of lto-used-symbols.txt] Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I044ce75df5a3eb82adeb5bae665192eb836e8c63 --- init/Kconfig | 1 - scripts/gen_autoksyms.sh | 35 ++++++++++++++++++++++++++--------- scripts/lto-used-symbols.txt | 6 ------ 3 files changed, 26 insertions(+), 16 deletions(-) delete mode 100644 scripts/lto-used-symbols.txt diff --git a/init/Kconfig b/init/Kconfig index cd402972fc2f..fc95d832e0a9 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -2352,7 +2352,6 @@ config TRIM_UNUSED_KSYMS config UNUSED_KSYMS_WHITELIST string "Whitelist of symbols to keep in ksymtab" depends on TRIM_UNUSED_KSYMS - default "scripts/lto-used-symbols.txt" if LTO_CLANG help By default, all unused exported symbols will be un-exported from the build when TRIM_UNUSED_KSYMS is selected. diff --git a/scripts/gen_autoksyms.sh b/scripts/gen_autoksyms.sh index d54dfba15bf2..da320151e7c3 100755 --- a/scripts/gen_autoksyms.sh +++ b/scripts/gen_autoksyms.sh @@ -19,7 +19,26 @@ esac # We need access to CONFIG_ symbols . include/config/auto.conf -ksym_wl=/dev/null +needed_symbols= + +# Special case for modversions (see modpost.c) +if [ -n "$CONFIG_MODVERSIONS" ]; then + needed_symbols="$needed_symbols module_layout" +fi + +# With CONFIG_LTO_CLANG, LLVM bitcode has not yet been compiled into a binary +# when the .mod files are generated, which means they don't yet contain +# references to certain symbols that will be present in the final binaries. +if [ -n "$CONFIG_LTO_CLANG" ]; then + # intrinsic functions + needed_symbols="$needed_symbols memcpy memmove memset" + # ftrace + needed_symbols="$needed_symbols _mcount" + # stack protector symbols + needed_symbols="$needed_symbols __stack_chk_fail __stack_chk_guard" +fi + +ksym_wl= if [ -n "$CONFIG_UNUSED_KSYMS_WHITELIST" ]; then # Use 'eval' to expand the whitelist path and check if it is relative eval ksym_wl="$CONFIG_UNUSED_KSYMS_WHITELIST" @@ -40,16 +59,14 @@ cat > "$output_file" << EOT EOT [ -f modules.order ] && modlist=modules.order || modlist=/dev/null -sed 's/ko$/mod/' $modlist | -xargs -n1 sed -n -e '2{s/ /\n/g;/^$/!p;}' -- | -cat - "$ksym_wl" | + +{ + sed 's/ko$/mod/' $modlist | xargs -n1 sed -n -e '2p' + echo "$needed_symbols" + [ -n "$ksym_wl" ] && cat "$ksym_wl" +} | sed -e 's/ /\n/g' | sed -n -e '/^$/!p' | # Remove the dot prefix for ppc64; symbol names with a dot (.) hold entry # point addresses. sed -e 's/^\.//' | sort -u | sed -e 's/\(.*\)/#define __KSYM_\1 1/' >> "$output_file" - -# Special case for modversions (see modpost.c) -if [ -n "$CONFIG_MODVERSIONS" ]; then - echo "#define __KSYM_module_layout 1" >> "$output_file" -fi diff --git a/scripts/lto-used-symbols.txt b/scripts/lto-used-symbols.txt deleted file mode 100644 index 406ada65e926..000000000000 --- a/scripts/lto-used-symbols.txt +++ /dev/null @@ -1,6 +0,0 @@ -memcpy -memmove -memset -_mcount -__stack_chk_fail -__stack_chk_guard From 4378c305d9760ec99c5a48e39e5da6a91ced2a17 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 1 Mar 2021 10:05:18 +0100 Subject: [PATCH 156/196] UPSTREAM: gpio: fix NULL-deref-on-deregistration regression Fix a NULL-pointer deference when deregistering the gpio character device that was introduced by the recent stub-driver hack. When the new "driver" is unbound as part of deregistration, driver core clears the driver-data pointer which is used to retrieve the struct gpio_device in its release callback. Fix this by using container_of() in the release callback as should have been done all along. Fixes: 4731210c09f5 ("gpiolib: Bind gpio_device to a driver to enable fw_devlink=on by default") Cc: Saravana Kannan Cc: Greg Kroah-Hartman Reported-by: syzbot+d27b4c8adbbff70fbfde@syzkaller.appspotmail.com Signed-off-by: Johan Hovold Signed-off-by: Bartosz Golaszewski (cherry picked from commit a6112998ee45514def58200a7914706c0703f3d7) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: If877374ea82aad46ca9750cb9f42df7e46137561 --- drivers/gpio/gpiolib.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index d067482e15b2..4710d65e4003 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -471,7 +471,7 @@ EXPORT_SYMBOL_GPL(gpiochip_line_is_valid); static void gpiodevice_release(struct device *dev) { - struct gpio_device *gdev = dev_get_drvdata(dev); + struct gpio_device *gdev = container_of(dev, struct gpio_device, dev); unsigned long flags; spin_lock_irqsave(&gpio_lock, flags); @@ -614,7 +614,6 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data, goto err_free_ida; device_initialize(&gdev->dev); - dev_set_drvdata(&gdev->dev, gdev); if (gc->parent && gc->parent->driver) gdev->owner = gc->parent->driver->owner; else if (gc->owner) From 96fd9e07c0a58602aa2e430c67b683ea55048a59 Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Mon, 1 Mar 2021 17:30:12 +0300 Subject: [PATCH 157/196] UPSTREAM: software node: Fix device_add_software_node() The function device_add_software_node() was meant to register the node supplied to it, but only if that node wasn't already registered. Right now the function attempts to always register the node. That will cause a failure with nodes that are already registered. Fixing that by incrementing the reference count of the nodes that have already been registered, and only registering the new nodes. Also, clarifying the behaviour in the function documentation. Fixes: e68d0119e328 ("software node: Introduce device_add_software_node()") Signed-off-by: Heikki Krogerus Reviewed-by: Andy Shevchenko Tested-by: Andy Shevchenko Signed-off-by: Rafael J. Wysocki (cherry picked from commit 2a92c90f2ecca4475d6050f2f938a1755a8954cc) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I77cb04fd58bfba05622ca8f4264ea45565529049 --- drivers/base/swnode.c | 26 +++++++++++++++++--------- include/linux/property.h | 2 +- 2 files changed, 18 insertions(+), 10 deletions(-) diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index 490474f7e127..d53cfe46c30d 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -866,25 +866,33 @@ EXPORT_SYMBOL_GPL(fwnode_remove_software_node); /** * device_add_software_node - Assign software node to a device * @dev: The device the software node is meant for. - * @swnode: The software node. + * @node: The software node. * - * This function will register @swnode and make it the secondary firmware node - * pointer of @dev. If @dev has no primary node, then @swnode will become the primary - * node. + * This function will make @node the secondary firmware node pointer of @dev. If + * @dev has no primary node, then @node will become the primary node. The + * function will register @node automatically if it wasn't already registered. */ -int device_add_software_node(struct device *dev, const struct software_node *swnode) +int device_add_software_node(struct device *dev, const struct software_node *node) { + struct swnode *swnode; int ret; /* Only one software node per device. */ if (dev_to_swnode(dev)) return -EBUSY; - ret = software_node_register(swnode); - if (ret) - return ret; + swnode = software_node_to_swnode(node); + if (swnode) { + kobject_get(&swnode->kobj); + } else { + ret = software_node_register(node); + if (ret) + return ret; - set_secondary_fwnode(dev, software_node_fwnode(swnode)); + swnode = software_node_to_swnode(node); + } + + set_secondary_fwnode(dev, &swnode->fwnode); return 0; } diff --git a/include/linux/property.h b/include/linux/property.h index b0e413dc5927..7d4bda43a91a 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -488,7 +488,7 @@ fwnode_create_software_node(const struct property_entry *properties, const struct fwnode_handle *parent); void fwnode_remove_software_node(struct fwnode_handle *fwnode); -int device_add_software_node(struct device *dev, const struct software_node *swnode); +int device_add_software_node(struct device *dev, const struct software_node *node); void device_remove_software_node(struct device *dev); #endif /* _LINUX_PROPERTY_H_ */ From 5f7ec0f4c3835feb590be18194e73cc78a3a449a Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 12 Mar 2021 21:07:01 -0800 Subject: [PATCH 158/196] UPSTREAM: memblock: fix section mismatch warning The inlining logic in clang-13 is rewritten to often not inline some functions that were inlined by all earlier compilers. In case of the memblock interfaces, this exposed a harmless bug of a missing __init annotation: WARNING: modpost: vmlinux.o(.text+0x507c0a): Section mismatch in reference from the function memblock_bottom_up() to the variable .meminit.data:memblock The function memblock_bottom_up() references the variable __meminitdata memblock. This is often because memblock_bottom_up lacks a __meminitdata annotation or the annotation of memblock is wrong. Interestingly, these annotations were present originally, but got removed with the explanation that the __init annotation prevents the function from getting inlined. I checked this again and found that while this is the case with clang, gcc (version 7 through 10, did not test others) does inline the functions regardless. As the previous change was apparently intended to help the clang builds, reverting it to help the newer clang versions seems appropriate as well. gcc builds don't seem to care either way. Link: https://lkml.kernel.org/r/20210225133808.2188581-1-arnd@kernel.org Fixes: 5bdba520c1b3 ("mm: memblock: drop __init from memblock functions to make it inline") Reference: 2cfb3665e864 ("include/linux/memblock.h: add __init to memblock_set_bottom_up()") Signed-off-by: Arnd Bergmann Reviewed-by: David Hildenbrand Reviewed-by: Mike Rapoport Cc: Nathan Chancellor Cc: Nick Desaulniers Cc: Faiyaz Mohammed Cc: Baoquan He Cc: Thomas Bogendoerfer Cc: Aslan Bakirov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds (cherry picked from commit 34dc2efb39a231280fd6696a59bbe712bf3c5c4a) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I0940378d103fe706d408b7524acddf47f0ecc79d --- include/linux/memblock.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/memblock.h b/include/linux/memblock.h index b93c44b9121e..7643d2dfa959 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -460,7 +460,7 @@ static inline void memblock_free_late(phys_addr_t base, phys_addr_t size) /* * Set the allocation direction to bottom-up or top-down. */ -static inline void memblock_set_bottom_up(bool enable) +static inline __init void memblock_set_bottom_up(bool enable) { memblock.bottom_up = enable; } @@ -470,7 +470,7 @@ static inline void memblock_set_bottom_up(bool enable) * if this is true, that said, memblock will allocate memory * in bottom-up direction. */ -static inline bool memblock_bottom_up(void) +static inline __init bool memblock_bottom_up(void) { return memblock.bottom_up; } From a1cc08d515d67ac75a5f9ad684a612be49b57b73 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 12 Mar 2021 08:04:23 +0000 Subject: [PATCH 159/196] UPSTREAM: gpiolib: Fix error return code in gpiolib_dev_init() Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 4731210c09f5 ("gpiolib: Bind gpio_device to a driver to enable fw_devlink=on by default") Reported-by: Hulk Robot Signed-off-by: Wei Yongjun Signed-off-by: Bartosz Golaszewski (cherry picked from commit 3875721e825cf3ab05fc1a52b6cbd76c8d16da51) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Ib4baa8a2e1952468f971dfb6fbdfefd827275519 --- drivers/gpio/gpiolib.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 4710d65e4003..200f151a061f 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -4396,7 +4396,8 @@ static int __init gpiolib_dev_init(void) return ret; } - if (driver_register(&gpio_stub_drv) < 0) { + ret = driver_register(&gpio_stub_drv); + if (ret < 0) { pr_err("gpiolib: could not register GPIO stub driver\n"); bus_unregister(&gpio_bus_type); return ret; From 94cf2b2d1de77b549808f52b9aa524f04f403dba Mon Sep 17 00:00:00 2001 From: David Gow Date: Mon, 8 Feb 2021 23:10:34 -0800 Subject: [PATCH 160/196] UPSTREAM: kunit: tool: Disable PAGE_POISONING under --alltests kunit_tool maintains a list of config options which are broken under UML, which we exclude from an otherwise 'make ARCH=um allyesconfig' build used to run all tests with the --alltests option. Something in UML allyesconfig is causing segfaults when page poisining is enabled (and is poisoning with a non-zero value). Previously, this didn't occur, as allyesconfig enabled the CONFIG_PAGE_POISONING_ZERO option, which worked around the problem by zeroing memory. This option has since been removed, and memory is now poisoned with 0xAA, which triggers segfaults in many different codepaths, preventing UML from booting. Note that we have to disable both CONFIG_PAGE_POISONING and CONFIG_DEBUG_PAGEALLOC, as the latter will 'select' the former on architectures (such as UML) which don't implement __kernel_map_pages(). Ideally, we'd fix this properly by tracking down the real root cause, but since this is breaking KUnit's --alltests feature, it's worth disabling there in the meantime so the kernel can boot to the point where tests can actually run. Fixes: f289041ed4cf ("mm, page_poison: remove CONFIG_PAGE_POISONING_ZERO") Signed-off-by: David Gow Acked-by: Vlastimil Babka Reviewed-by: Brendan Higgins Signed-off-by: Shuah Khan (cherry picked from commit 7fd53f41f771d250eb08db08650940f017e37c26) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Ia4a6bc590a7a5d3aa915a738fd83c50a748f1cbe --- tools/testing/kunit/configs/broken_on_uml.config | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/kunit/configs/broken_on_uml.config b/tools/testing/kunit/configs/broken_on_uml.config index a7f0603d33f6..690870043ac0 100644 --- a/tools/testing/kunit/configs/broken_on_uml.config +++ b/tools/testing/kunit/configs/broken_on_uml.config @@ -40,3 +40,5 @@ # CONFIG_RESET_BRCMSTB_RESCAL is not set # CONFIG_RESET_INTEL_GW is not set # CONFIG_ADI_AXI_ADC is not set +# CONFIG_DEBUG_PAGEALLOC is not set +# CONFIG_PAGE_POISONING is not set From 3ddee7b2eeb52679e33cd066fd5abdfa5cb52ba5 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Mon, 22 Mar 2021 16:44:38 -0700 Subject: [PATCH 161/196] UPSTREAM: kbuild: lto: Merge module sections if and only if CONFIG_LTO_CLANG is enabled Merge module sections only when using Clang LTO. With ld.bfd, merging sections does not appear to update the symbol tables for the module, e.g. 'readelf -s' shows the value that a symbol would have had, if sections were not merged. ld.lld does not show this problem. The stale symbol table breaks gdb's function disassembler, and presumably other things, e.g. gdb -batch -ex "file arch/x86/kvm/kvm.ko" -ex "disassemble kvm_init" reads the wrong bytes and dumps garbage. Fixes: dd2776222abb ("kbuild: lto: merge module sections") Cc: Nick Desaulniers Signed-off-by: Sean Christopherson Reviewed-by: Sami Tolvanen Tested-by: Sami Tolvanen Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20210322234438.502582-1-seanjc@google.com (cherry picked from commit 6a3193cdd5e5b96ac65f04ee42555c216da332af) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I295d9a6b71a41fd1585059d0f48a2a2c13eb2361 --- scripts/module.lds.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/scripts/module.lds.S b/scripts/module.lds.S index 488a6f742624..ea11e2146183 100644 --- a/scripts/module.lds.S +++ b/scripts/module.lds.S @@ -33,6 +33,7 @@ SECTIONS { __patchable_function_entries : { *(__patchable_function_entries) } +#ifdef CONFIG_LTO_CLANG /* * With CONFIG_LTO_CLANG, LLD always enables -fdata-sections and * -ffunction-sections, which increases the size of the final module. @@ -66,6 +67,7 @@ SECTIONS { __cfi_jt_end = .; } #endif +#endif } /* bring in arch-specific sections */ From d0db984f3e23f083381e5927676e9ae122765f88 Mon Sep 17 00:00:00 2001 From: Mike Leach Date: Thu, 15 Apr 2021 14:24:04 -0600 Subject: [PATCH 162/196] UPSTREAM: coresight: etm-perf: Fix define build issue when built as module CONFIG_CORESIGHT_SOURCE_ETM4X is undefined when built as module, CONFIG_CORESIGHT_SOURCE_ETM4X_MODULE is defined instead. Therefore code in format_attr_contextid_show() not correctly complied when coresight built as module. Use IS_ENABLED(CONFIG_CORESIGHT_SOURCE_ETM4X) to correct this. Link: https://lore.kernel.org/r/20210414194808.22872-1-mike.leach@linaro.org Fixes: 88f11864cf1d ("coresight: etm-perf: Support PID tracing for kernel at EL2") Reviewed-by: Leo Yan Signed-off-by: Mike Leach Signed-off-by: Mathieu Poirier Cc: stable Link: https://lore.kernel.org/r/20210415202404.945368-2-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman (cherry picked from commit 9204ff94868496f2d9b8b173af52ec455160c364) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I9bd70169cfa9e5181ca53455ccd9ecf5fa461a79 --- drivers/hwtracing/coresight/coresight-etm-perf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c index f123c26b9f54..9142c5b24f57 100644 --- a/drivers/hwtracing/coresight/coresight-etm-perf.c +++ b/drivers/hwtracing/coresight/coresight-etm-perf.c @@ -71,7 +71,7 @@ static ssize_t format_attr_contextid_show(struct device *dev, { int pid_fmt = ETM_OPT_CTXTID; -#if defined(CONFIG_CORESIGHT_SOURCE_ETM4X) +#if IS_ENABLED(CONFIG_CORESIGHT_SOURCE_ETM4X) pid_fmt = is_kernel_in_hyp_mode() ? ETM_OPT_CTXTID2 : ETM_OPT_CTXTID; #endif return sprintf(page, "config:%d\n", pid_fmt); From def7a8e7d74f171c33ea244f189ea89e8e223b46 Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Wed, 14 Apr 2021 10:54:38 +0300 Subject: [PATCH 163/196] UPSTREAM: software node: Allow node addition to already existing device If the node is added to an already exiting device, the node needs to be also linked to the device separately. This will make sure the reference count is kept in balance also when the node is injected to a device afterwards. Fixes: e68d0119e328 ("software node: Introduce device_add_software_node()") Reported-by: Pierre-Louis Bossart Signed-off-by: Heikki Krogerus Cc: stable Link: https://lore.kernel.org/r/20210414075438.64547-1-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman (cherry picked from commit b622b24519f5b008f6d4e20e5675eaffa8fbd87b) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I72ab0d95f5b936674e9cf1e567c287799fe6a718 --- drivers/base/swnode.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index d53cfe46c30d..254f31443132 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -893,6 +893,7 @@ int device_add_software_node(struct device *dev, const struct software_node *nod } set_secondary_fwnode(dev, &swnode->fwnode); + software_node_notify(dev, KOBJ_ADD); return 0; } @@ -929,8 +930,8 @@ int software_node_notify(struct device *dev, unsigned long action) switch (action) { case KOBJ_ADD: - ret = sysfs_create_link(&dev->kobj, &swnode->kobj, - "software_node"); + ret = sysfs_create_link_nowarn(&dev->kobj, &swnode->kobj, + "software_node"); if (ret) break; From db8e491a1b1b33dda9f3c2207bac4fa2b18392a7 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 26 Feb 2021 15:07:14 +0100 Subject: [PATCH 164/196] UPSTREAM: media: mtk: fix mtk-smi dependency The mtk-smi driver can now be built as a loadable module, but this leads to a build time regression when the drivers that depend on it are built-in: aarch64-linux-ld: drivers/media/platform/mtk-mdp/mtk_mdp_comp.o: in function `mtk_mdp_comp_clock_on': mtk_mdp_comp.c:(.text.mtk_mdp_comp_clock_on+0x54): undefined reference to `mtk_smi_larb_get' aarch64-linux-ld: drivers/media/platform/mtk-mdp/mtk_mdp_comp.o: in function `mtk_mdp_comp_clock_off': mtk_mdp_comp.c:(.text.mtk_mdp_comp_clock_off+0x12c): undefined reference to `mtk_smi_larb_put' Add a dependency on the interface, but keep allowing compile-testing without that driver, as it was originally intended. Fixes: 50fc8d9232cd ("memory: mtk-smi: Allow building as module") Signed-off-by: Arnd Bergmann Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab (cherry picked from commit 4fade8329ab2be2b902fce8db3625fd12234b873) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I633614c76aa15a9320d365850bddc1e1e4c06bee --- drivers/media/platform/Kconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index 7e152bbb4fa6..119e8c2e8d43 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -211,6 +211,7 @@ config VIDEO_MEDIATEK_JPEG depends on MTK_IOMMU_V1 || MTK_IOMMU || COMPILE_TEST depends on VIDEO_DEV && VIDEO_V4L2 depends on ARCH_MEDIATEK || COMPILE_TEST + depends on MTK_SMI || (COMPILE_TEST && MTK_SMI=n) select VIDEOBUF2_DMA_CONTIG select V4L2_MEM2MEM_DEV help @@ -238,6 +239,7 @@ config VIDEO_MEDIATEK_MDP depends on MTK_IOMMU || COMPILE_TEST depends on VIDEO_DEV && VIDEO_V4L2 depends on ARCH_MEDIATEK || COMPILE_TEST + depends on MTK_SMI || (COMPILE_TEST && MTK_SMI=n) select VIDEOBUF2_DMA_CONTIG select V4L2_MEM2MEM_DEV select VIDEO_MEDIATEK_VPU @@ -258,6 +260,7 @@ config VIDEO_MEDIATEK_VCODEC # our dependencies, to avoid missing symbols during link. depends on VIDEO_MEDIATEK_VPU || !VIDEO_MEDIATEK_VPU depends on MTK_SCP || !MTK_SCP + depends on MTK_SMI || (COMPILE_TEST && MTK_SMI=n) select VIDEOBUF2_DMA_CONTIG select V4L2_MEM2MEM_DEV select VIDEO_MEDIATEK_VCODEC_VPU if VIDEO_MEDIATEK_VPU From 282faf9977e50168f758a1d4dbd9991e3d52f57b Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 6 Apr 2021 14:44:47 +0200 Subject: [PATCH 165/196] UPSTREAM: dt-bindings: iommu: mediatek: update mediatek,iommu.yaml references Changeset bca28426805d ("dt-bindings: iommu: mediatek: Convert IOMMU to DT schema") renamed: Documentation/devicetree/bindings/iommu/mediatek,iommu.txt to: Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml. Update the cross-references accordingly. Fixes: bca28426805d ("dt-bindings: iommu: mediatek: Convert IOMMU to DT schema") Signed-off-by: Mauro Carvalho Chehab (cherry picked from commit 0378027396a1115267d15f42fe55cee4c932f0e9) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Iaf920c9e9ac771e981c92a9018da9f160e75df63 --- .../devicetree/bindings/display/mediatek/mediatek,disp.txt | 2 +- .../devicetree/bindings/media/mediatek-jpeg-decoder.txt | 2 +- .../devicetree/bindings/media/mediatek-jpeg-encoder.txt | 2 +- Documentation/devicetree/bindings/media/mediatek-mdp.txt | 2 +- Documentation/devicetree/bindings/media/mediatek-vcodec.txt | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt index 121220745d46..62a5e13c46ae 100644 --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt @@ -63,7 +63,7 @@ Required properties (DMA function blocks): - larb: Should contain a phandle pointing to the local arbiter device as defined in Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt - iommus: Should point to the respective IOMMU block with master port as - argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt + argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details. Examples: diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt index 044b11913c49..169cf3b30f5e 100644 --- a/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt +++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt @@ -19,7 +19,7 @@ Required properties: Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt for details. - iommus: should point to the respective IOMMU block with master port as - argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt + argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details. Example: diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.txt b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.txt index 736be7cad385..5e116814adf6 100644 --- a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.txt +++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.txt @@ -17,7 +17,7 @@ Required properties: Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt for details. - iommus: should point to the respective IOMMU block with master port as - argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt + argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details. Example: diff --git a/Documentation/devicetree/bindings/media/mediatek-mdp.txt b/Documentation/devicetree/bindings/media/mediatek-mdp.txt index 0d03e3ae2be2..55797836accf 100644 --- a/Documentation/devicetree/bindings/media/mediatek-mdp.txt +++ b/Documentation/devicetree/bindings/media/mediatek-mdp.txt @@ -25,7 +25,7 @@ Required properties (DMA function blocks, child node): "mediatek,mt8173-mdp-wdma" "mediatek,mt8173-mdp-wrot" - iommus: should point to the respective IOMMU block with master port as - argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt + argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details. - mediatek,larb: must contain the local arbiters in the current Socs, see Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt diff --git a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt index 8217424fd4bd..a83ebc1a1c7f 100644 --- a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt +++ b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt @@ -18,7 +18,7 @@ Required properties: "univpll_d2", "clk_cci400_sel", "vdec_sel", "vdecpll", "vencpll", "venc_lt_sel", "vdec_bus_clk_src". - iommus : should point to the respective IOMMU block with master port as - argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt + argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details. One of the two following nodes: - mediatek,vpu : the node of the video processor unit, if using VPU. From c46f0025660a326de860dd3363978a27210b3993 Mon Sep 17 00:00:00 2001 From: Sergei Trofimovich Date: Thu, 29 Apr 2021 23:02:11 -0700 Subject: [PATCH 166/196] UPSTREAM: mm: page_alloc: ignore init_on_free=1 for debug_pagealloc=1 On !ARCH_SUPPORTS_DEBUG_PAGEALLOC (like ia64) debug_pagealloc=1 implies page_poison=on: if (page_poisoning_enabled() || (!IS_ENABLED(CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC) && debug_pagealloc_enabled())) static_branch_enable(&_page_poisoning_enabled); page_poison=on needs to override init_on_free=1. Before the change it did not work as expected for the following case: - have PAGE_POISONING=y - have page_poison unset - have !ARCH_SUPPORTS_DEBUG_PAGEALLOC arch (like ia64) - have init_on_free=1 - have debug_pagealloc=1 That way we get both keys enabled: - static_branch_enable(&init_on_free); - static_branch_enable(&_page_poisoning_enabled); which leads to poisoned pages returned for __GFP_ZERO pages. After the change we execute only: - static_branch_enable(&_page_poisoning_enabled); and ignore init_on_free=1. Link: https://lkml.kernel.org/r/20210329222555.3077928-1-slyfox@gentoo.org Link: https://lkml.org/lkml/2021/3/26/443 Fixes: 8db26a3d4735 ("mm, page_poison: use static key more efficiently") Signed-off-by: Sergei Trofimovich Acked-by: Vlastimil Babka Reviewed-by: David Hildenbrand Cc: Andrey Konovalov Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds (cherry picked from commit 9df65f522536719682bccd24245ff94db956256c) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I6c91221b58123dfd820c493442ad6060de9f4704 --- mm/page_alloc.c | 34 +++++++++++++++++++--------------- 1 file changed, 19 insertions(+), 15 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index b29b84509e8a..f145af9cb551 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -817,20 +817,7 @@ static inline void clear_page_guard(struct zone *zone, struct page *page, */ void init_mem_debugging_and_hardening(void) { - if (_init_on_alloc_enabled_early) { - if (page_poisoning_enabled()) - pr_info("mem auto-init: CONFIG_PAGE_POISONING is on, " - "will take precedence over init_on_alloc\n"); - else - static_branch_enable(&init_on_alloc); - } - if (_init_on_free_enabled_early) { - if (page_poisoning_enabled()) - pr_info("mem auto-init: CONFIG_PAGE_POISONING is on, " - "will take precedence over init_on_free\n"); - else - static_branch_enable(&init_on_free); - } + bool page_poisoning_requested = false; #ifdef CONFIG_PAGE_POISONING /* @@ -839,10 +826,27 @@ void init_mem_debugging_and_hardening(void) */ if (page_poisoning_enabled() || (!IS_ENABLED(CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC) && - debug_pagealloc_enabled())) + debug_pagealloc_enabled())) { static_branch_enable(&_page_poisoning_enabled); + page_poisoning_requested = true; + } #endif + if (_init_on_alloc_enabled_early) { + if (page_poisoning_requested) + pr_info("mem auto-init: CONFIG_PAGE_POISONING is on, " + "will take precedence over init_on_alloc\n"); + else + static_branch_enable(&init_on_alloc); + } + if (_init_on_free_enabled_early) { + if (page_poisoning_requested) + pr_info("mem auto-init: CONFIG_PAGE_POISONING is on, " + "will take precedence over init_on_free\n"); + else + static_branch_enable(&init_on_free); + } + #ifdef CONFIG_DEBUG_PAGEALLOC if (!debug_pagealloc_enabled()) return; From c04f2026cfd7267e353b037a4cf19a8a4ae27b7b Mon Sep 17 00:00:00 2001 From: Dafna Hirschfeld Date: Fri, 16 Apr 2021 12:54:49 +0200 Subject: [PATCH 167/196] UPSTREAM: iommu/mediatek: Always enable the clk on resume In mtk_iommu_runtime_resume always enable the clk, even if m4u_dom is null. Otherwise the 'suspend' cb might disable the clk which is already disabled causing the warning: [ 1.586104] infra_m4u already disabled [ 1.586133] WARNING: CPU: 0 PID: 121 at drivers/clk/clk.c:952 clk_core_disable+0xb0/0xb8 [ 1.594391] mtk-iommu 10205000.iommu: bound 18001000.larb (ops mtk_smi_larb_component_ops) [ 1.598108] Modules linked in: [ 1.598114] CPU: 0 PID: 121 Comm: kworker/0:2 Not tainted 5.12.0-rc5 #69 [ 1.609246] mtk-iommu 10205000.iommu: bound 14027000.larb (ops mtk_smi_larb_component_ops) [ 1.617487] Hardware name: Google Elm (DT) [ 1.617491] Workqueue: pm pm_runtime_work [ 1.620545] mtk-iommu 10205000.iommu: bound 19001000.larb (ops mtk_smi_larb_component_ops) [ 1.627229] pstate: 60000085 (nZCv daIf -PAN -UAO -TCO BTYPE=--) [ 1.659297] pc : clk_core_disable+0xb0/0xb8 [ 1.663475] lr : clk_core_disable+0xb0/0xb8 [ 1.667652] sp : ffff800011b9bbe0 [ 1.670959] x29: ffff800011b9bbe0 x28: 0000000000000000 [ 1.676267] x27: ffff800011448000 x26: ffff8000100cfd98 [ 1.681574] x25: ffff800011b9bd48 x24: 0000000000000000 [ 1.686882] x23: 0000000000000000 x22: ffff8000106fad90 [ 1.692189] x21: 000000000000000a x20: ffff0000c0048500 [ 1.697496] x19: ffff0000c0048500 x18: ffffffffffffffff [ 1.702804] x17: 0000000000000000 x16: 0000000000000000 [ 1.708112] x15: ffff800011460300 x14: fffffffffffe0000 [ 1.713420] x13: ffff8000114602d8 x12: 0720072007200720 [ 1.718727] x11: 0720072007200720 x10: 0720072007200720 [ 1.724035] x9 : ffff800011b9bbe0 x8 : ffff800011b9bbe0 [ 1.729342] x7 : 0000000000000009 x6 : ffff8000114b8328 [ 1.734649] x5 : 0000000000000000 x4 : 0000000000000000 [ 1.739956] x3 : 00000000ffffffff x2 : ffff800011460298 [ 1.745263] x1 : 1af1d7de276f4500 x0 : 0000000000000000 [ 1.750572] Call trace: [ 1.753010] clk_core_disable+0xb0/0xb8 [ 1.756840] clk_core_disable_lock+0x24/0x40 [ 1.761105] clk_disable+0x20/0x30 [ 1.764501] mtk_iommu_runtime_suspend+0x88/0xa8 [ 1.769114] pm_generic_runtime_suspend+0x2c/0x48 [ 1.773815] __rpm_callback+0xe0/0x178 [ 1.777559] rpm_callback+0x24/0x88 [ 1.781041] rpm_suspend+0xdc/0x470 [ 1.784523] rpm_idle+0x12c/0x170 [ 1.787831] pm_runtime_work+0xa8/0xc0 [ 1.791573] process_one_work+0x1e8/0x360 [ 1.795580] worker_thread+0x44/0x478 [ 1.799237] kthread+0x150/0x158 [ 1.802460] ret_from_fork+0x10/0x30 [ 1.806034] ---[ end trace 82402920ef64573b ]--- [ 1.810728] ------------[ cut here ]------------ In addition, we now don't need to enable the clock from the function mtk_iommu_hw_init since it is already enabled by the resume. Fixes: c0b57581b73b ("iommu/mediatek: Add power-domain operation") Signed-off-by: Dafna Hirschfeld Reviewed-by: Yong Wu Link: https://lore.kernel.org/r/20210416105449.4744-1-dafna.hirschfeld@collabora.com Signed-off-by: Joerg Roedel (cherry picked from commit b34ea31fe013569d42b7e8681ef3f717f77c5b72) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: If9eb88adbbde95ace7b61c212938b109929c3fe3 --- drivers/iommu/mtk_iommu.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 6ecc007f07cd..e168a682806a 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -688,13 +688,6 @@ static const struct iommu_ops mtk_iommu_ops = { static int mtk_iommu_hw_init(const struct mtk_iommu_data *data) { u32 regval; - int ret; - - ret = clk_prepare_enable(data->bclk); - if (ret) { - dev_err(data->dev, "Failed to enable iommu bclk(%d)\n", ret); - return ret; - } if (data->plat_data->m4u_plat == M4U_MT8173) { regval = F_MMU_PREFETCH_RT_REPLACE_MOD | @@ -760,7 +753,6 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data) if (devm_request_irq(data->dev, data->irq, mtk_iommu_isr, 0, dev_name(data->dev), (void *)data)) { writel_relaxed(0, data->base + REG_MMU_PT_BASE_ADDR); - clk_disable_unprepare(data->bclk); dev_err(data->dev, "Failed @ IRQ-%d Request\n", data->irq); return -ENODEV; } @@ -977,14 +969,19 @@ static int __maybe_unused mtk_iommu_runtime_resume(struct device *dev) void __iomem *base = data->base; int ret; - /* Avoid first resume to affect the default value of registers below. */ - if (!m4u_dom) - return 0; ret = clk_prepare_enable(data->bclk); if (ret) { dev_err(data->dev, "Failed to enable clk(%d) in resume\n", ret); return ret; } + + /* + * Uppon first resume, only enable the clk and return, since the values of the + * registers are not yet set. + */ + if (!m4u_dom) + return 0; + writel_relaxed(reg->wr_len_ctrl, base + REG_MMU_WR_LEN_CTRL); writel_relaxed(reg->misc_ctrl, base + REG_MMU_MISC_CTRL); writel_relaxed(reg->dcm_dis, base + REG_MMU_DCM_DIS); From 67d005b0ac6899ced32f8eb544d0fd3b2d0a9c4e Mon Sep 17 00:00:00 2001 From: David Brazdil Date: Wed, 31 Mar 2021 13:30:48 +0000 Subject: [PATCH 168/196] UPSTREAM: KVM: arm64: Support PREL/PLT relocs in EL2 code gen-hyprel tool parses object files of the EL2 portion of KVM and generates runtime relocation data. While only filtering for R_AARCH64_ABS64 relocations in the input object files, it has an allow-list of relocation types that are used for relative addressing. Other, unexpected, relocation types are rejected and cause the build to fail. This allow-list did not include the position-relative relocation types R_AARCH64_PREL64/32/16 and the recently introduced _PLT32. While not seen used by toolchains in the wild, add them to the allow-list for completeness. Fixes: 8c49b5d43d4c ("KVM: arm64: Generate hyp relocation data") Cc: Reported-by: Will Deacon Signed-off-by: David Brazdil Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210331133048.63311-1-dbrazdil@google.com (cherry picked from commit 77e06b300161d41d65950be9c77a785c142b381d) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Ide671e628e7c1bd48079385d0354cc1dafcfb2ef --- arch/arm64/kvm/hyp/nvhe/gen-hyprel.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm64/kvm/hyp/nvhe/gen-hyprel.c b/arch/arm64/kvm/hyp/nvhe/gen-hyprel.c index ead02c6a7628..6bc88a756cb7 100644 --- a/arch/arm64/kvm/hyp/nvhe/gen-hyprel.c +++ b/arch/arm64/kvm/hyp/nvhe/gen-hyprel.c @@ -50,6 +50,18 @@ #ifndef R_AARCH64_ABS64 #define R_AARCH64_ABS64 257 #endif +#ifndef R_AARCH64_PREL64 +#define R_AARCH64_PREL64 260 +#endif +#ifndef R_AARCH64_PREL32 +#define R_AARCH64_PREL32 261 +#endif +#ifndef R_AARCH64_PREL16 +#define R_AARCH64_PREL16 262 +#endif +#ifndef R_AARCH64_PLT32 +#define R_AARCH64_PLT32 314 +#endif #ifndef R_AARCH64_LD_PREL_LO19 #define R_AARCH64_LD_PREL_LO19 273 #endif @@ -371,6 +383,12 @@ static void emit_rela_section(Elf64_Shdr *sh_rela) case R_AARCH64_ABS64: emit_rela_abs64(rela, sh_orig_name); break; + /* Allow position-relative data relocations. */ + case R_AARCH64_PREL64: + case R_AARCH64_PREL32: + case R_AARCH64_PREL16: + case R_AARCH64_PLT32: + break; /* Allow relocations to generate PC-relative addressing. */ case R_AARCH64_LD_PREL_LO19: case R_AARCH64_ADR_PREL_LO21: From 52ce94e8bf17c807b9da0632e1e353607da142cb Mon Sep 17 00:00:00 2001 From: Wang Wensheng Date: Tue, 6 Apr 2021 12:17:59 +0000 Subject: [PATCH 169/196] UPSTREAM: KVM: arm64: Fix error return code in init_hyp_mode() Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: eeeee7193df0 ("KVM: arm64: Bootstrap PSCI SMC handler in nVHE EL2") Reported-by: Hulk Robot Signed-off-by: Wang Wensheng Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210406121759.5407-1-wangwensheng4@huawei.com (cherry picked from commit 52b9e265d22bccc5843e167da76ab119874e2883) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Iaac1f2e2d7f99fe0d2337533eeaf8aa79623e224 --- arch/arm64/kvm/arm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 82fedbb94a7b..93f21e4a9b1e 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -1888,8 +1888,10 @@ static int init_hyp_mode(void) if (is_protected_kvm_enabled()) { init_cpu_logical_map(); - if (!init_psci_relay()) + if (!init_psci_relay()) { + err = -ENODEV; goto out_err; + } } if (is_protected_kvm_enabled()) { From ff1eb3fcd09dd52c662b420c8a9422a657e617f2 Mon Sep 17 00:00:00 2001 From: Thinh Nguyen Date: Mon, 26 Apr 2021 14:08:40 -0700 Subject: [PATCH 170/196] UPSTREAM: usb: dwc3: core: Add missing GHWPARAMS9 doc Add missing documentation for struct dwc3_hwparams new field hwparams9 to avoid kernel doc build warning. Fixes: 16710380d3aa ("usb: dwc3: Capture new capability register GHWPARAMS9") Reported-by: Stephen Rothwell Acked-by: Felipe Balbi Signed-off-by: Thinh Nguyen Link: https://lore.kernel.org/r/f4c491f7614e623755fafe640b7e690e7c5634e2.1619471127.git.Thinh.Nguyen@synopsys.com Signed-off-by: Greg Kroah-Hartman (cherry picked from commit 9cbc7eb17cdf6d1adaa2aebfe0079077d31d39a9) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Ib912141546f4b90770d2ad1cdc66bf4323bb5970 --- drivers/usb/dwc3/core.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 5819a944f566..45fbc933dc20 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -858,6 +858,7 @@ struct dwc3_trb { * @hwparams6: GHWPARAMS6 * @hwparams7: GHWPARAMS7 * @hwparams8: GHWPARAMS8 + * @hwparams9: GHWPARAMS9 */ struct dwc3_hwparams { u32 hwparams0; From 2aee873ab258ebe66817e9715d3167f24088a8ba Mon Sep 17 00:00:00 2001 From: Zhen Lei Date: Sat, 8 May 2021 09:53:10 +0800 Subject: [PATCH 171/196] UPSTREAM: usb: dwc3: imx8mp: fix error return code in dwc3_imx8mp_probe() Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 6dd2565989b4 ("usb: dwc3: add imx8mp dwc3 glue layer driver") Reported-by: Hulk Robot Acked-by: Felipe Balbi Signed-off-by: Zhen Lei Cc: stable Link: https://lore.kernel.org/r/20210508015310.1627-1-thunder.leizhen@huawei.com Signed-off-by: Greg Kroah-Hartman (cherry picked from commit 0b2b149e918f6dddb4ea53615551bf7bc131f875) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: Ib16b20081ca496276a86792a08c039115fd38fd6 --- drivers/usb/dwc3/dwc3-imx8mp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/dwc3/dwc3-imx8mp.c b/drivers/usb/dwc3/dwc3-imx8mp.c index 75f0042b998b..84c1a4ac2444 100644 --- a/drivers/usb/dwc3/dwc3-imx8mp.c +++ b/drivers/usb/dwc3/dwc3-imx8mp.c @@ -167,6 +167,7 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev) dwc3_np = of_get_child_by_name(node, "dwc3"); if (!dwc3_np) { + err = -ENODEV; dev_err(dev, "failed to find dwc3 core child\n"); goto disable_rpm; } From 5df654d642f1735804054d88f0c4c0475ee5529b Mon Sep 17 00:00:00 2001 From: Luca Stefani Date: Thu, 6 May 2021 21:37:25 +0200 Subject: [PATCH 172/196] UPSTREAM: binder: Return EFAULT if we fail BINDER_ENABLE_ONEWAY_SPAM_DETECTION All the other ioctl paths return EFAULT in case the copy_from_user/copy_to_user call fails, make oneway spam detection follow the same paradigm. Fixes: a7dc1e6f99df ("binder: tell userspace to dump current backtrace when detected oneway spamming") Acked-by: Todd Kjos Acked-by: Christian Brauner Signed-off-by: Luca Stefani Link: https://lore.kernel.org/r/20210506193726.45118-1-luca.stefani.ge1@gmail.com Signed-off-by: Greg Kroah-Hartman (cherry picked from commit ced081a436d21a7d34d4d42acb85058f9cf423f2) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I7c5e6ec7108c42721de6c82f4c1e9ff3d4f0e88d --- drivers/android/binder.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 6ed1b9ca3c90..3b6d6be5e3b7 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -5046,7 +5046,7 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) uint32_t enable; if (copy_from_user(&enable, ubuf, sizeof(enable))) { - ret = -EINVAL; + ret = -EFAULT; goto err; } binder_inner_proc_lock(proc); From e44e1f38bef401323ebf58d0b701115f4fb8fd70 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Tue, 18 May 2021 12:01:06 -0700 Subject: [PATCH 173/196] UPSTREAM: x86/build: Fix location of '-plugin-opt=' flags Commit b33fff07e3e3 ("x86, build: allow LTO to be selected") added a couple of '-plugin-opt=' flags to KBUILD_LDFLAGS because the code model and stack alignment are not stored in LLVM bitcode. However, these flags were added to KBUILD_LDFLAGS prior to the emulation flag assignment, which uses ':=', so they were overwritten and never added to $(LD) invocations. The absence of these flags caused misalignment issues in the AMDGPU driver when compiling with CONFIG_LTO_CLANG, resulting in general protection faults. Shuffle the assignment below the initial one so that the flags are properly passed along and all of the linker flags stay together. At the same time, avoid any future issues with clobbering flags by changing the emulation flag assignment to '+=' since KBUILD_LDFLAGS is already defined with ':=' in the main Makefile before being exported for modification here as a result of commit: ce99d0bf312d ("kbuild: clear LDFLAGS in the top Makefile") Fixes: b33fff07e3e3 ("x86, build: allow LTO to be selected") Reported-by: Anthony Ruhier Signed-off-by: Nathan Chancellor Signed-off-by: Ingo Molnar Tested-by: Anthony Ruhier Cc: stable@vger.kernel.org Link: https://github.com/ClangBuiltLinux/linux/issues/1374 Link: https://lore.kernel.org/r/20210518190106.60935-1-nathan@kernel.org (cherry picked from commit 0024430e920f2900654ad83cd081cf52e02a3ef5) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I9f9c056829483f341251cc7407d0029c05e8b503 --- arch/x86/Makefile | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 8427cf6d2404..75b49418c89e 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -177,11 +177,6 @@ ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1) KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args,) endif -ifdef CONFIG_LTO_CLANG -KBUILD_LDFLAGS += -plugin-opt=-code-model=kernel \ - -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8) -endif - # Workaround for a gcc prelease that unfortunately was shipped in a suse release KBUILD_CFLAGS += -Wno-sign-compare # @@ -201,7 +196,12 @@ ifdef CONFIG_RETPOLINE endif endif -KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE) +KBUILD_LDFLAGS += -m elf_$(UTS_MACHINE) + +ifdef CONFIG_LTO_CLANG +KBUILD_LDFLAGS += -plugin-opt=-code-model=kernel \ + -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8) +endif ifdef CONFIG_X86_NEED_RELOCS LDFLAGS_vmlinux := --emit-relocs --discard-none From 6288fa47f46a10cfbcd51ef2647651205e4a0e5f Mon Sep 17 00:00:00 2001 From: Jisheng Zhang Date: Tue, 25 May 2021 10:45:51 +0800 Subject: [PATCH 174/196] UPSTREAM: arm64: mm: don't use CON and BLK mapping if KFENCE is enabled When we added KFENCE support for arm64, we intended that it would force the entire linear map to be mapped at page granularity, but we only enforced this in arch_add_memory() and not in map_mem(), so memory mapped at boot time can be mapped at a larger granularity. When booting a kernel with KFENCE=y and RODATA_FULL=n, this results in the following WARNING at boot: [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at mm/memory.c:2462 apply_to_pmd_range+0xec/0x190 [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.13.0-rc1+ #10 [ 0.000000] Hardware name: linux,dummy-virt (DT) [ 0.000000] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO BTYPE=--) [ 0.000000] pc : apply_to_pmd_range+0xec/0x190 [ 0.000000] lr : __apply_to_page_range+0x94/0x170 [ 0.000000] sp : ffffffc010573e20 [ 0.000000] x29: ffffffc010573e20 x28: ffffff801f400000 x27: ffffff801f401000 [ 0.000000] x26: 0000000000000001 x25: ffffff801f400fff x24: ffffffc010573f28 [ 0.000000] x23: ffffffc01002b710 x22: ffffffc0105fa450 x21: ffffffc010573ee4 [ 0.000000] x20: ffffff801fffb7d0 x19: ffffff801f401000 x18: 00000000fffffffe [ 0.000000] x17: 000000000000003f x16: 000000000000000a x15: ffffffc01060b940 [ 0.000000] x14: 0000000000000000 x13: 0098968000000000 x12: 0000000098968000 [ 0.000000] x11: 0000000000000000 x10: 0000000098968000 x9 : 0000000000000001 [ 0.000000] x8 : 0000000000000000 x7 : ffffffc010573ee4 x6 : 0000000000000001 [ 0.000000] x5 : ffffffc010573f28 x4 : ffffffc01002b710 x3 : 0000000040000000 [ 0.000000] x2 : ffffff801f5fffff x1 : 0000000000000001 x0 : 007800005f400705 [ 0.000000] Call trace: [ 0.000000] apply_to_pmd_range+0xec/0x190 [ 0.000000] __apply_to_page_range+0x94/0x170 [ 0.000000] apply_to_page_range+0x10/0x20 [ 0.000000] __change_memory_common+0x50/0xdc [ 0.000000] set_memory_valid+0x30/0x40 [ 0.000000] kfence_init_pool+0x9c/0x16c [ 0.000000] kfence_init+0x20/0x98 [ 0.000000] start_kernel+0x284/0x3f8 Fixes: 840b23986344 ("arm64, kfence: enable KFENCE for ARM64") Cc: # 5.12.x Signed-off-by: Jisheng Zhang Acked-by: Mark Rutland Acked-by: Marco Elver Tested-by: Marco Elver Link: https://lore.kernel.org/r/20210525104551.2ec37f77@xhacker.debian Signed-off-by: Catalin Marinas (cherry picked from commit e69012400b0cb42b2070748322cb72f9effec00f) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I46a49466b8db835a00b635a53bb78d3a12cd0e3b --- arch/arm64/mm/mmu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index f87ec5ad81ab..91a21d36d38c 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -477,7 +477,8 @@ static void __init map_mem(pgd_t *pgdp) int flags = 0; u64 i; - if (rodata_full || debug_pagealloc_enabled()) + if (rodata_full || debug_pagealloc_enabled() || + IS_ENABLED(CONFIG_KFENCE)) flags = NO_BLOCK_MAPPINGS | NO_CONT_MAPPINGS; /* From 4190dbd6addfd97b9fa3d61a81aeeb63e6b7cc00 Mon Sep 17 00:00:00 2001 From: Quentin Perret Date: Fri, 14 May 2021 08:56:40 +0000 Subject: [PATCH 175/196] UPSTREAM: KVM: arm64: Mark the host stage-2 memory pools static The host stage-2 memory pools are not used outside of mem_protect.c, mark them static. Fixes: 1025c8c0c6ac ("KVM: arm64: Wrap the host with a stage 2") Reported-by: kernel test robot Signed-off-by: Quentin Perret Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210514085640.3917886-3-qperret@google.com (cherry picked from commit 3fdc15fe8c6445175d61f0fac111d2ee9354e385) Bug: 187129171 Signed-off-by: Connor O'Brien Change-Id: I33805323f830f541e0c0827947017a3ed53da679 --- arch/arm64/kvm/hyp/nvhe/mem_protect.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c index f4f364aa3282..541820d9c115 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -23,8 +23,8 @@ extern unsigned long hyp_nr_cpus; struct host_kvm host_kvm; -struct hyp_pool host_s2_mem; -struct hyp_pool host_s2_dev; +static struct hyp_pool host_s2_mem; +static struct hyp_pool host_s2_dev; /* * Copies of the host's CPU features registers holding sanitized values. From 7a689ebc67b3b3f282fa8d6754da7930dcf1b15c Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Mon, 12 Apr 2021 12:51:16 +0200 Subject: [PATCH 176/196] ANDROID: crypto: lib/sha256 - add vendor hook for sha256() routine Add a vendor hook that will allow the FIPS140 kernel module to override the implementation of the sha256() library routine. The FIPS 140 version is identical to the normal one, but its code and rodata will have been integrity checked at module load time. Bug: 153614920 Bug: 188620248 Change-Id: I8ccc4f0cc8206af39fa922134b438dacac2a614a Signed-off-by: Ard Biesheuvel --- drivers/android/vendor_hooks.c | 2 ++ include/trace/hooks/fips140.h | 27 +++++++++++++++++++++++++++ lib/crypto/sha256.c | 9 +++++++++ 3 files changed, 38 insertions(+) create mode 100644 include/trace/hooks/fips140.h diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c index 8768e7e6c61a..44397e97ff23 100644 --- a/drivers/android/vendor_hooks.c +++ b/drivers/android/vendor_hooks.c @@ -62,6 +62,7 @@ #include #include #include +#include /* * Export tracepoints that act as a bare tracehook (ie: have no trace event @@ -321,3 +322,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_free_user); EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_balance_anon_file_reclaim); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpuidle_psci_enter); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpuidle_psci_exit); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sha256); diff --git a/include/trace/hooks/fips140.h b/include/trace/hooks/fips140.h new file mode 100644 index 000000000000..10fe4bbaee08 --- /dev/null +++ b/include/trace/hooks/fips140.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM fips140 +#define TRACE_INCLUDE_PATH trace/hooks + +#if !defined(_TRACE_HOOK_FIPS140_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_HOOK_FIPS140_H +#include +#include + +/* + * This hook exists only for the benefit of the FIPS140 crypto module, which + * uses it to swap out the underlying implementation with one that is integrity + * checked as per FIPS 140 requirements. No other uses are allowed or + * supported. + */ +DECLARE_HOOK(android_vh_sha256, + TP_PROTO(const u8 *data, + unsigned int len, + u8 *out, + int *hook_inuse), + TP_ARGS(data, len, out, hook_inuse)); + +#endif /* _TRACE_HOOK_FIPS140_H */ + +/* This part must be outside protection */ +#include diff --git a/lib/crypto/sha256.c b/lib/crypto/sha256.c index 2321f6cb322f..216a0d9787b0 100644 --- a/lib/crypto/sha256.c +++ b/lib/crypto/sha256.c @@ -17,6 +17,7 @@ #include #include #include +#include static inline u32 Ch(u32 x, u32 y, u32 z) { @@ -284,6 +285,14 @@ void sha256(const u8 *data, unsigned int len, u8 *out) { struct sha256_state sctx; +#if defined(CONFIG_CRYPTO_FIPS140) && !defined(BUILD_FIPS140_KO) + int hook_inuse = 0; + + trace_android_vh_sha256(data, len, out, &hook_inuse); + if (hook_inuse) + return; +#endif + sha256_init(&sctx); sha256_update(&sctx, data, len); sha256_final(&sctx, out); From 9c556792b713c8ce16b99d245c56fe43e9b8b020 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Mon, 12 Apr 2021 13:05:54 +0200 Subject: [PATCH 177/196] ANDROID: crypto: lib/aes - add vendor hooks for AES library routines Add vendor hooks that will allow the FIPS140 kernel module to override the implementations of the AES library routines. The FIPS 140 versions are identical to the normal ones, but their code and rodata will have been integrity checked at module load time. Bug: 153614920 Bug: 188620248 Change-Id: I5711fc42eced903565fd3c8d41ca7cdd82641148 Signed-off-by: Ard Biesheuvel --- drivers/android/vendor_hooks.c | 3 +++ include/trace/hooks/fips140.h | 28 ++++++++++++++++++++++++++-- lib/crypto/aes.c | 22 ++++++++++++++++++++++ 3 files changed, 51 insertions(+), 2 deletions(-) diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c index 44397e97ff23..9829d2b783f5 100644 --- a/drivers/android/vendor_hooks.c +++ b/drivers/android/vendor_hooks.c @@ -323,3 +323,6 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_balance_anon_file_reclaim); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpuidle_psci_enter); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpuidle_psci_exit); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sha256); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_aes_expandkey); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_aes_encrypt); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_aes_decrypt); diff --git a/include/trace/hooks/fips140.h b/include/trace/hooks/fips140.h index 10fe4bbaee08..3aebf6168791 100644 --- a/include/trace/hooks/fips140.h +++ b/include/trace/hooks/fips140.h @@ -8,12 +8,15 @@ #include #include +struct crypto_aes_ctx; + /* - * This hook exists only for the benefit of the FIPS140 crypto module, which - * uses it to swap out the underlying implementation with one that is integrity + * These hooks exist only for the benefit of the FIPS140 crypto module, which + * uses them to swap out the underlying implementation with one that is integrity * checked as per FIPS 140 requirements. No other uses are allowed or * supported. */ + DECLARE_HOOK(android_vh_sha256, TP_PROTO(const u8 *data, unsigned int len, @@ -21,6 +24,27 @@ DECLARE_HOOK(android_vh_sha256, int *hook_inuse), TP_ARGS(data, len, out, hook_inuse)); +DECLARE_HOOK(android_vh_aes_expandkey, + TP_PROTO(struct crypto_aes_ctx *ctx, + const u8 *in_key, + unsigned int key_len, + int *err), + TP_ARGS(ctx, in_key, key_len, err)); + +DECLARE_HOOK(android_vh_aes_encrypt, + TP_PROTO(const struct crypto_aes_ctx *ctx, + u8 *out, + const u8 *in, + int *hook_inuse), + TP_ARGS(ctx, out, in, hook_inuse)); + +DECLARE_HOOK(android_vh_aes_decrypt, + TP_PROTO(const struct crypto_aes_ctx *ctx, + u8 *out, + const u8 *in, + int *hook_inuse), + TP_ARGS(ctx, out, in, hook_inuse)); + #endif /* _TRACE_HOOK_FIPS140_H */ /* This part must be outside protection */ diff --git a/lib/crypto/aes.c b/lib/crypto/aes.c index 827fe89922ff..6a8b70a12365 100644 --- a/lib/crypto/aes.c +++ b/lib/crypto/aes.c @@ -7,6 +7,7 @@ #include #include #include +#include /* * Emit the sbox as volatile const to prevent the compiler from doing @@ -189,6 +190,13 @@ int aes_expandkey(struct crypto_aes_ctx *ctx, const u8 *in_key, u32 rc, i, j; int err; +#if defined(CONFIG_CRYPTO_FIPS140) && !defined(BUILD_FIPS140_KO) + err = -(MAX_ERRNO + 1); + trace_android_vh_aes_expandkey(ctx, in_key, key_len, &err); + if (err != -(MAX_ERRNO + 1)) + return err; +#endif + err = aes_check_keylen(key_len); if (err) return err; @@ -261,6 +269,13 @@ void aes_encrypt(const struct crypto_aes_ctx *ctx, u8 *out, const u8 *in) int rounds = 6 + ctx->key_length / 4; u32 st0[4], st1[4]; int round; +#if defined(CONFIG_CRYPTO_FIPS140) && !defined(BUILD_FIPS140_KO) + int hook_inuse = 0; + + trace_android_vh_aes_encrypt(ctx, out, in, &hook_inuse); + if (hook_inuse) + return; +#endif st0[0] = ctx->key_enc[0] ^ get_unaligned_le32(in); st0[1] = ctx->key_enc[1] ^ get_unaligned_le32(in + 4); @@ -312,6 +327,13 @@ void aes_decrypt(const struct crypto_aes_ctx *ctx, u8 *out, const u8 *in) int rounds = 6 + ctx->key_length / 4; u32 st0[4], st1[4]; int round; +#if defined(CONFIG_CRYPTO_FIPS140) && !defined(BUILD_FIPS140_KO) + int hook_inuse = 0; + + trace_android_vh_aes_decrypt(ctx, out, in, &hook_inuse); + if (hook_inuse) + return; +#endif st0[0] = ctx->key_dec[0] ^ get_unaligned_le32(in); st0[1] = ctx->key_dec[1] ^ get_unaligned_le32(in + 4); From ddea30c6840392f2e0b009741b17203fb368d457 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Thu, 3 Jun 2021 15:18:35 +0000 Subject: [PATCH 178/196] ANDROID: arm64: only permit certain alternatives in the FIPS140 module The FIPS140 crypto module takes a HMAC digest of its own .text and .rodata section in its module_init() hook. This digest is compared to a digest taken at build time, which means that we need to take some extra care to ensure that the build time and runtime versions line up. One thing we cannot tolerate in this case is alternatives patching. In the general case, we cannot simply ignore alternatives, but fortunately, there is only a small subset that actually gets instantiated in the FIPS140 module, and all of these can be ignored if we are willing to accept that the FIPS140 module does not support VHE hardware, and does not work when running with pseudo-NMI support enabled. None of this is important for the use case targeted by the FIPS140 module, so this is something we should be able to live with. Bug: 153614920 Bug: 188620248 Change-Id: Ie6666e01d5524a3c33aa451609bab2f29b612f8c Signed-off-by: Ard Biesheuvel --- arch/arm64/include/asm/alternative-macros.h | 30 +++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/arch/arm64/include/asm/alternative-macros.h b/arch/arm64/include/asm/alternative-macros.h index 8a078fc662ac..5cc2c8f11fe3 100644 --- a/arch/arm64/include/asm/alternative-macros.h +++ b/arch/arm64/include/asm/alternative-macros.h @@ -9,6 +9,7 @@ /* A64 instructions are always 32 bits. */ #define AARCH64_INSN_SIZE 4 +#ifndef BUILD_FIPS140_KO #ifndef __ASSEMBLY__ #include @@ -214,4 +215,33 @@ alternative_endif #define ALTERNATIVE(oldinstr, newinstr, ...) \ _ALTERNATIVE_CFG(oldinstr, newinstr, __VA_ARGS__, 1) +#else + +/* + * The FIPS140 module does not support alternatives patching, as this + * invalidates the HMAC digest of the .text section. However, some alternatives + * are known to be irrelevant so we can tolerate them in the FIPS140 module, as + * they will never be applied in the first place in the use cases that the + * FIPS140 module targets (Android running on a production phone). Any other + * uses of alternatives should be avoided, as it is not safe in the general + * case to simply use the default sequence in one place (the fips module) and + * the alternative sequence everywhere else. + * + * Below is an allowlist of features that we can ignore, by simply taking the + * safe default instruction sequence. Note that this implies that the FIPS140 + * module is not compatible with VHE, or with pseudo-NMI support. + */ + +#define __ALT_ARM64_HAS_LDAPR 0, +#define __ALT_ARM64_HAS_VIRT_HOST_EXTN 0, +#define __ALT_ARM64_HAS_IRQ_PRIO_MASKING 0, + +#define ALTERNATIVE(oldinstr, newinstr, feature, ...) \ + _ALTERNATIVE(oldinstr, __ALT_ ## feature, #feature) + +#define _ALTERNATIVE(oldinstr, feature, feature_str) \ + __take_second_arg(feature oldinstr, \ + ".err Feature " feature_str " not supported in fips140 module") + +#endif /* BUILD_FIPS140_KO */ #endif /* __ASM_ALTERNATIVE_MACROS_H */ From 6772dcc141038519285ad5343f04e9fb5b7d10e0 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Tue, 6 Apr 2021 15:53:15 +0200 Subject: [PATCH 179/196] ANDROID: kbuild: lto: permit the use of .a archives in LTO modules Permit the use of AR archives in .a format as input to the partial link that produces a kernel module. This permits a set of builtin objects to be bundled with a module object, to create a single module carrying the payload of several modules. This is used by the FIPS 140 module. Bug: 153614920 Bug: 188620248 Change-Id: I7183e6922a03aed498f947062bf0d36709371294 Signed-off-by: Ard Biesheuvel --- scripts/Makefile.build | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 3f6bf0ea7c0e..a4b050588edf 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -439,7 +439,7 @@ quiet_cmd_link_multi-m = AR [M] $@ cmd_link_multi-m = \ $(cmd_update_lto_symversions); \ rm -f $@; \ - $(AR) cDPrsT $@ $(filter %.o,$^) + $(AR) cDPrsT $@ $(filter %.o %.a,$^) else quiet_cmd_link_multi-m = LD [M] $@ cmd_link_multi-m = $(LD) $(ld_flags) -r -o $@ $(filter %.o,$^) From 15f0fc91e1b23be7367dc7523663f346f0b8839e Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Thu, 8 Apr 2021 12:08:18 +0200 Subject: [PATCH 180/196] ANDROID: arm64: simd: omit capability check in may_use_simd() may_use_simd() should only be called by code that may use FP/SIMD when it is available, and so checking whether the system supports FP/SIMD in the first place should be redundant - the caller in question (e.g., a SIMD crypto algorithm) should never be initialized in the first place. Checking the system capability involves jump labels and therefore code patching, which interferes with our ability to perform an integrity check on some of the crypto code. So let's get rid of the capability check altogether. Bug: 153614920 Bug: 188620248 Change-Id: Ia8df624f4648cc980a12a44eeb82e8f186d5f961 Signed-off-by: Ard Biesheuvel --- arch/arm64/include/asm/simd.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/arm64/include/asm/simd.h b/arch/arm64/include/asm/simd.h index 89cba2622b79..1a121cb083d3 100644 --- a/arch/arm64/include/asm/simd.h +++ b/arch/arm64/include/asm/simd.h @@ -35,9 +35,7 @@ static __must_check inline bool may_use_simd(void) * migrated, and if it's clear we cannot be migrated to a CPU * where it is set. */ - return !WARN_ON(!system_capabilities_finalized()) && - system_supports_fpsimd() && - !in_irq() && !irqs_disabled() && !in_nmi() && + return !in_irq() && !irqs_disabled() && !in_nmi() && !this_cpu_read(fpsimd_context_busy); } From 254da9ba365691482b411168d2fe97d1ac98a010 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Wed, 7 Apr 2021 11:00:47 +0200 Subject: [PATCH 181/196] ANDROID: arm64: module: preserve RELA sections for FIPS140 integrity selfcheck The FIPS 140-2 integrity check compares the runtime code with a digest that was created at build time. Given that the module's placement in virtual memory is an a priori unknown, we cannot account for this at build time, and so we need to do so at runtime instead. In order to revert the code to the build time state, we need to know which changes the module loader applied to it. These changes are based on the RELA ELF section that describes the changes that the module loader must apply, and so to unapply these changes, we need to preserve the RELA section when loading the module. So add a special case for a module called 'fips140' in the module loader, and copy the RELA sections applying to .text and .rodata to a temporary buffer that the fips140.ko init code can access. Bug: 153614920 Bug: 188620248 Change-Id: I97d69053c6657b104a3a9ea10af78a53ce52c6e5 Signed-off-by: Ard Biesheuvel --- arch/arm64/kernel/module-plts.c | 34 +++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/arch/arm64/kernel/module-plts.c b/arch/arm64/kernel/module-plts.c index 2e224435c024..cee0781112d4 100644 --- a/arch/arm64/kernel/module-plts.c +++ b/arch/arm64/kernel/module-plts.c @@ -7,6 +7,7 @@ #include #include #include +#include #include static struct plt_entry __get_adrp_add_pair(u64 dst, u64 pc, @@ -290,6 +291,7 @@ static int partition_branch_plt_relas(Elf64_Sym *syms, Elf64_Rela *rela, int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, char *secstrings, struct module *mod) { + bool copy_rela_for_fips140 = false; unsigned long core_plts = 0; unsigned long init_plts = 0; Elf64_Sym *syms = NULL; @@ -321,6 +323,10 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, return -ENOEXEC; } + if (IS_ENABLED(CONFIG_CRYPTO_FIPS140) && + !strcmp(mod->name, "fips140")) + copy_rela_for_fips140 = true; + for (i = 0; i < ehdr->e_shnum; i++) { Elf64_Rela *rels = (void *)ehdr + sechdrs[i].sh_offset; int nents, numrels = sechdrs[i].sh_size / sizeof(Elf64_Rela); @@ -329,10 +335,38 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, if (sechdrs[i].sh_type != SHT_RELA) continue; +#ifdef CONFIG_CRYPTO_FIPS140 + if (copy_rela_for_fips140 && + !strcmp(secstrings + dstsec->sh_name, ".rodata")) { + void *p = kmemdup(rels, numrels * sizeof(Elf64_Rela), + GFP_KERNEL); + if (!p) { + pr_err("fips140: failed to allocate .rodata RELA buffer\n"); + return -ENOMEM; + } + mod->arch.rodata_relocations = p; + mod->arch.num_rodata_relocations = numrels; + } +#endif + /* ignore relocations that operate on non-exec sections */ if (!(dstsec->sh_flags & SHF_EXECINSTR)) continue; +#ifdef CONFIG_CRYPTO_FIPS140 + if (copy_rela_for_fips140 && + !strcmp(secstrings + dstsec->sh_name, ".text")) { + void *p = kmemdup(rels, numrels * sizeof(Elf64_Rela), + GFP_KERNEL); + if (!p) { + pr_err("fips140: failed to allocate .text RELA buffer\n"); + return -ENOMEM; + } + mod->arch.text_relocations = p; + mod->arch.num_text_relocations = numrels; + } +#endif + /* * sort branch relocations requiring a PLT by type, symbol index * and addend From 0672a69424e558395607278c24e378fcb8be8372 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Fri, 4 Jun 2021 21:00:09 +0200 Subject: [PATCH 182/196] FROMLIST: crypto: shash - stop comparing function pointers to avoid breaking CFI crypto_shash_alg_has_setkey() is implemented by testing whether the .setkey() member of a struct shash_alg points to the default version called shash_no_setkey(). As crypto_shash_alg_has_setkey() is a static inline, this requires shash_no_setkey() to be exported to modules. Unfortunately, when building with CFI, function pointers are routed via CFI stubs which are private to each module (or to the kernel proper) and so this function pointer comparison may fail spuriously. Let's fix this by turning crypto_shash_alg_has_setkey() into an out of line function, which makes the problem go away. Signed-off-by: Ard Biesheuvel Bug: 153614920 Bug: 188620248 Link: https://lore.kernel.org/linux-crypto/20210610062150.212779-1-ardb@kernel.org Change-Id: Ib94d812e2668020144bf8246ddbbc8b652cdf2b7 Signed-off-by: Ard Biesheuvel --- crypto/shash.c | 18 +++++++++++++++--- include/crypto/internal/hash.h | 8 +------- 2 files changed, 16 insertions(+), 10 deletions(-) diff --git a/crypto/shash.c b/crypto/shash.c index 2e3433ad9762..0a0a50cb694f 100644 --- a/crypto/shash.c +++ b/crypto/shash.c @@ -20,12 +20,24 @@ static const struct crypto_type crypto_shash_type; -int shash_no_setkey(struct crypto_shash *tfm, const u8 *key, - unsigned int keylen) +static int shash_no_setkey(struct crypto_shash *tfm, const u8 *key, + unsigned int keylen) { return -ENOSYS; } -EXPORT_SYMBOL_GPL(shash_no_setkey); + +/* + * Check whether an shash algorithm has a setkey function. + * + * For CFI compatibility, this must not be an inline function. This is because + * when CFI is enabled, modules won't get the same address for shash_no_setkey + * (if it were exported, which inlining would require) as the core kernel will. + */ +bool crypto_shash_alg_has_setkey(struct shash_alg *alg) +{ + return alg->setkey != shash_no_setkey; +} +EXPORT_SYMBOL_GPL(crypto_shash_alg_has_setkey); static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key, unsigned int keylen) diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h index 0a288dddcf5b..25806141db59 100644 --- a/include/crypto/internal/hash.h +++ b/include/crypto/internal/hash.h @@ -75,13 +75,7 @@ void crypto_unregister_ahashes(struct ahash_alg *algs, int count); int ahash_register_instance(struct crypto_template *tmpl, struct ahash_instance *inst); -int shash_no_setkey(struct crypto_shash *tfm, const u8 *key, - unsigned int keylen); - -static inline bool crypto_shash_alg_has_setkey(struct shash_alg *alg) -{ - return alg->setkey != shash_no_setkey; -} +bool crypto_shash_alg_has_setkey(struct shash_alg *alg); static inline bool crypto_shash_alg_needs_key(struct shash_alg *alg) { From 6be141eb36feae286459c464fa94f125faa16230 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Tue, 23 Mar 2021 10:54:38 +0100 Subject: [PATCH 183/196] ANDROID: crypto: fips140 - perform load time integrity check In order to comply with FIPS 140-2 requirements, implement a fips140 module that carries all AES, SHA-xxx and DRBG implementations with the associated chaining mode templates, and perform an integrity selfcheck at load time. The algorithms contained in the module will be registered with the crypto API, and will supersede any existing copies of the same algorithms that were already being provided by the core kernel. Bug: 153614920 Bug: 188620248 Test: boot tested on Pixel hw both with and without a live algo ('hmac(sha1-ce)') Change-Id: Ia893d9992fc12e2617d1ed2899c9794859c389d1 Signed-off-by: Ard Biesheuvel --- android/gki_aarch64_fips140_modules | 1 + arch/arm64/configs/fips140_gki.fragment | 1 + arch/arm64/crypto/Kbuild.fips140 | 44 ++ arch/arm64/include/asm/module.lds.h | 29 ++ build.config.gki.aarch64.fips140 | 17 + crypto/Kconfig | 8 + crypto/Makefile | 37 ++ crypto/fips140-module.c | 630 ++++++++++++++++++++++++ scripts/module.lds.S | 4 + 9 files changed, 771 insertions(+) create mode 100644 android/gki_aarch64_fips140_modules create mode 100644 arch/arm64/configs/fips140_gki.fragment create mode 100644 arch/arm64/crypto/Kbuild.fips140 create mode 100644 build.config.gki.aarch64.fips140 create mode 100644 crypto/fips140-module.c diff --git a/android/gki_aarch64_fips140_modules b/android/gki_aarch64_fips140_modules new file mode 100644 index 000000000000..01d4fcc5c4ac --- /dev/null +++ b/android/gki_aarch64_fips140_modules @@ -0,0 +1 @@ +crypto/fips140.ko diff --git a/arch/arm64/configs/fips140_gki.fragment b/arch/arm64/configs/fips140_gki.fragment new file mode 100644 index 000000000000..68292520be10 --- /dev/null +++ b/arch/arm64/configs/fips140_gki.fragment @@ -0,0 +1 @@ +CONFIG_CRYPTO_FIPS140_MOD=y diff --git a/arch/arm64/crypto/Kbuild.fips140 b/arch/arm64/crypto/Kbuild.fips140 new file mode 100644 index 000000000000..986bdad2f50d --- /dev/null +++ b/arch/arm64/crypto/Kbuild.fips140 @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Create a separate FIPS archive that duplicates the modules that are relevant +# for FIPS 140 certification as builtin objects +# + +sha1-ce-y := sha1-ce-glue.o sha1-ce-core.o +sha2-ce-y := sha2-ce-glue.o sha2-ce-core.o +sha512-ce-y := sha512-ce-glue.o sha512-ce-core.o +ghash-ce-y := ghash-ce-glue.o ghash-ce-core.o +aes-ce-cipher-y := aes-ce-core.o aes-ce-glue.o +aes-ce-blk-y := aes-glue-ce.o aes-ce.o +aes-neon-blk-y := aes-glue-neon.o aes-neon.o +sha256-arm64-y := sha256-glue.o sha256-core.o +sha512-arm64-y := sha512-glue.o sha512-core.o +aes-arm64-y := aes-cipher-core.o aes-cipher-glue.o +aes-neon-bs-y := aes-neonbs-core.o aes-neonbs-glue.o + +crypto-arm64-fips-src := $(srctree)/arch/arm64/crypto/ +crypto-arm64-fips-modules := sha1-ce.o sha2-ce.o sha512-ce.o ghash-ce.o \ + aes-ce-cipher.o aes-ce-blk.o aes-neon-blk.o \ + sha256-arm64.o sha512-arm64.o aes-arm64.o \ + aes-neon-bs.o + +crypto-fips-objs += $(foreach o,$(crypto-arm64-fips-modules),$($(o:.o=-y):.o=-fips-arch.o)) + +CFLAGS_aes-glue-ce-fips-arch.o := -DUSE_V8_CRYPTO_EXTENSIONS + +$(obj)/aes-glue-%-fips-arch.o: KBUILD_CFLAGS += $(FIPS140_CFLAGS) +$(obj)/aes-glue-%-fips-arch.o: $(crypto-arm64-fips-src)/aes-glue.c FORCE + $(call if_changed_rule,cc_o_c) + +$(obj)/%-fips-arch.o: KBUILD_CFLAGS += $(FIPS140_CFLAGS) +$(obj)/%-fips-arch.o: $(crypto-arm64-fips-src)/%.c FORCE + $(call if_changed_rule,cc_o_c) + +$(obj)/%-fips-arch.o: $(crypto-arm64-fips-src)/%.S FORCE + $(call if_changed_rule,as_o_S) + +$(obj)/%: $(crypto-arm64-fips-src)/%_shipped + $(call cmd,shipped) + +$(obj)/%-fips-arch.o: $(obj)/%.S FORCE + $(call if_changed_rule,as_o_S) diff --git a/arch/arm64/include/asm/module.lds.h b/arch/arm64/include/asm/module.lds.h index 810045628c66..0b736bff0bdf 100644 --- a/arch/arm64/include/asm/module.lds.h +++ b/arch/arm64/include/asm/module.lds.h @@ -3,5 +3,34 @@ SECTIONS { .plt 0 (NOLOAD) : { BYTE(0) } .init.plt 0 (NOLOAD) : { BYTE(0) } .text.ftrace_trampoline 0 (NOLOAD) : { BYTE(0) } + +#ifdef CONFIG_CRYPTO_FIPS140 + /* + * The FIPS140 module incorporates copies of builtin code, which gets + * integrity checked at module load time, and registered in a way that + * ensures that the integrity checked versions supersede the builtin + * ones. These objects are compiled as builtin code, and so their init + * hooks will be exported from the binary in the same way as builtin + * initcalls are, i.e., annotated with a level that defines the order + * in which the hooks are expected to be invoked. + */ +#define INIT_CALLS_LEVEL(level) \ + KEEP(*(.initcall##level##.init*)) \ + KEEP(*(.initcall##level##s.init*)) + + .initcalls : { + *(.initcalls._start) + INIT_CALLS_LEVEL(0) + INIT_CALLS_LEVEL(1) + INIT_CALLS_LEVEL(2) + INIT_CALLS_LEVEL(3) + INIT_CALLS_LEVEL(4) + INIT_CALLS_LEVEL(5) + INIT_CALLS_LEVEL(rootfs) + INIT_CALLS_LEVEL(6) + INIT_CALLS_LEVEL(7) + *(.initcalls._end) + } +#endif } #endif diff --git a/build.config.gki.aarch64.fips140 b/build.config.gki.aarch64.fips140 new file mode 100644 index 000000000000..040d73af3d2a --- /dev/null +++ b/build.config.gki.aarch64.fips140 @@ -0,0 +1,17 @@ +. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki.aarch64 + +FILES="${FILES} +crypto/fips140.ko +" + +if [ "${LTO}" = "none" ]; then + echo "The FIPS140 module needs LTO to be enabled." + exit 1 +fi + +MODULES_ORDER=android/gki_aarch64_fips140_modules +KERNEL_DIR=common + +DEFCONFIG=fips140_gki_defconfig +PRE_DEFCONFIG_CMDS="cat ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/gki_defconfig ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/fips140_gki.fragment > ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/${DEFCONFIG};" +POST_DEFCONFIG_CMDS="rm ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/${DEFCONFIG}" diff --git a/crypto/Kconfig b/crypto/Kconfig index 774adc9846fa..ca514e82431a 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -32,6 +32,14 @@ config CRYPTO_FIPS certification. You should say no unless you know what this is. +config CRYPTO_FIPS140 + def_bool y + depends on MODULES && ARM64 && ARM64_MODULE_PLTS + +config CRYPTO_FIPS140_MOD + bool "Enable FIPS140 integrity self-checked loadable module" + depends on LTO_CLANG && CRYPTO_FIPS140 + config CRYPTO_ALGAPI tristate select CRYPTO_ALGAPI2 diff --git a/crypto/Makefile b/crypto/Makefile index b279483fba50..6c117defa554 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -197,3 +197,40 @@ obj-$(CONFIG_ASYMMETRIC_KEY_TYPE) += asymmetric_keys/ obj-$(CONFIG_CRYPTO_HASH_INFO) += hash_info.o crypto_simd-y := simd.o obj-$(CONFIG_CRYPTO_SIMD) += crypto_simd.o + +ifneq ($(CONFIG_CRYPTO_FIPS140_MOD),) + +FIPS140_CFLAGS := -D__DISABLE_EXPORTS -DBUILD_FIPS140_KO + +# +# Create a separate FIPS archive containing a duplicate of each builtin generic +# module that is in scope for FIPS 140-2 certification +# +crypto-fips-objs := drbg.o ecb.o cbc.o ctr.o gcm.o xts.o hmac.o memneq.o \ + gf128mul.o aes_generic.o lib-crypto-aes.o \ + sha1_generic.o sha256_generic.o sha512_generic.o \ + lib-sha1.o lib-crypto-sha256.o +crypto-fips-objs := $(foreach o,$(crypto-fips-objs),$(o:.o=-fips.o)) + +# get the arch to add its objects to $(crypto-fips-objs) +include $(srctree)/arch/$(ARCH)/crypto/Kbuild.fips140 + +extra-$(CONFIG_CRYPTO_FIPS140_MOD) += crypto-fips.a + +$(obj)/%-fips.o: KBUILD_CFLAGS += $(FIPS140_CFLAGS) +$(obj)/%-fips.o: $(src)/%.c FORCE + $(call if_changed_rule,cc_o_c) +$(obj)/lib-%-fips.o: $(srctree)/lib/%.c FORCE + $(call if_changed_rule,cc_o_c) +$(obj)/lib-crypto-%-fips.o: $(srctree)/lib/crypto/%.c FORCE + $(call if_changed_rule,cc_o_c) + +$(obj)/crypto-fips.a: $(addprefix $(obj)/,$(crypto-fips-objs)) FORCE + $(call if_changed,ar_and_symver) + +fips140-objs := fips140-module.o crypto-fips.a +obj-m += fips140.o + +CFLAGS_fips140-module.o += $(FIPS140_CFLAGS) + +endif diff --git a/crypto/fips140-module.c b/crypto/fips140-module.c new file mode 100644 index 000000000000..2b3ecd4bea5a --- /dev/null +++ b/crypto/fips140-module.c @@ -0,0 +1,630 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright 2021 Google LLC + * Author: Ard Biesheuvel + * + * This file is the core of the fips140.ko, which carries a number of crypto + * algorithms and chaining mode templates that are also built into vmlinux. + * This modules performs a load time integrity check, as mandated by FIPS 140, + * and replaces registered crypto algorithms that appear on the FIPS 140 list + * with ones provided by this module. This meets the FIPS 140 requirements for + * a cryptographic software module. + */ + +#define pr_fmt(fmt) "fips140: " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "internal.h" + +/* + * FIPS 140-2 prefers the use of HMAC with a public key over a plain hash. + */ +u8 __initdata fips140_integ_hmac_key[] = "The quick brown fox jumps over the lazy dog"; + +/* this is populated by the build tool */ +u8 __initdata fips140_integ_hmac_digest[SHA256_DIGEST_SIZE]; + +const u32 __initcall_start_marker __section(".initcalls._start"); +const u32 __initcall_end_marker __section(".initcalls._end"); + +const u8 __fips140_text_start __section(".text.._start"); +const u8 __fips140_text_end __section(".text.._end"); + +const u8 __fips140_rodata_start __section(".rodata.._start"); +const u8 __fips140_rodata_end __section(".rodata.._end"); + +/* + * We need this little detour to prevent Clang from detecting out of bounds + * accesses to __fips140_text_start and __fips140_rodata_start, which only exist + * to delineate the section, and so their sizes are not relevant to us. + */ +const u32 *__initcall_start = &__initcall_start_marker; + +const u8 *__text_start = &__fips140_text_start; +const u8 *__rodata_start = &__fips140_rodata_start; + +static const char fips140_algorithms[][22] __initconst = { + "aes", + + "gcm(aes)", + + "ecb(aes)", + "cbc(aes)", + "ctr(aes)", + "xts(aes)", + + "hmac(sha1)", + "hmac(sha224)", + "hmac(sha256)", + "hmac(sha384)", + "hmac(sha512)", + "sha1", + "sha224", + "sha256", + "sha384", + "sha512", + + "drbg_nopr_ctr_aes256", + "drbg_nopr_ctr_aes192", + "drbg_nopr_ctr_aes128", + "drbg_nopr_hmac_sha512", + "drbg_nopr_hmac_sha384", + "drbg_nopr_hmac_sha256", + "drbg_nopr_hmac_sha1", + "drbg_nopr_sha512", + "drbg_nopr_sha384", + "drbg_nopr_sha256", + "drbg_nopr_sha1", + "drbg_pr_ctr_aes256", + "drbg_pr_ctr_aes192", + "drbg_pr_ctr_aes128", + "drbg_pr_hmac_sha512", + "drbg_pr_hmac_sha384", + "drbg_pr_hmac_sha256", + "drbg_pr_hmac_sha1", + "drbg_pr_sha512", + "drbg_pr_sha384", + "drbg_pr_sha256", + "drbg_pr_sha1", +}; + +static bool __init is_fips140_algo(struct crypto_alg *alg) +{ + int i; + + /* + * All software algorithms are synchronous, hardware algorithms must + * be covered by their own FIPS 140 certification. + */ + if (alg->cra_flags & CRYPTO_ALG_ASYNC) + return false; + + for (i = 0; i < ARRAY_SIZE(fips140_algorithms); i++) + if (!strcmp(alg->cra_name, fips140_algorithms[i])) + return true; + return false; +} + +static LIST_HEAD(unchecked_fips140_algos); + +static void __init unregister_existing_fips140_algos(void) +{ + struct crypto_alg *alg, *tmp; + LIST_HEAD(remove_list); + LIST_HEAD(spawns); + + down_write(&crypto_alg_sem); + + /* + * Find all registered algorithms that we care about, and move them to + * a private list so that they are no longer exposed via the algo + * lookup API. Subsequently, we will unregister them if they are not in + * active use. If they are, we cannot simply remove them but we can + * adapt them later to use our integrity checked backing code. + */ + list_for_each_entry_safe(alg, tmp, &crypto_alg_list, cra_list) { + if (is_fips140_algo(alg)) { + if (refcount_read(&alg->cra_refcnt) == 1) { + /* + * This algorithm is not currently in use, but + * there may be template instances holding + * references to it via spawns. So let's tear + * it down like crypto_unregister_alg() would, + * but without releasing the lock, to prevent + * races with concurrent TFM allocations. + */ + alg->cra_flags |= CRYPTO_ALG_DEAD; + list_move(&alg->cra_list, &remove_list); + crypto_remove_spawns(alg, &spawns, NULL); + } else { + /* + * This algorithm is live, i.e., there are TFMs + * allocated that rely on it for its crypto + * transformations. We will swap these out + * later with integrity checked versions. + */ + list_move(&alg->cra_list, + &unchecked_fips140_algos); + } + } + } + + /* + * We haven't taken a reference to the algorithms on the remove_list, + * so technically, we may be competing with a concurrent invocation of + * crypto_unregister_alg() here. Fortunately, crypto_unregister_alg() + * just gives up with a warning if the algo that is being unregistered + * has already disappeared, so this happens to be safe. That does mean + * we need to hold on to the lock, to ensure that the algo is either on + * the list or it is not, and not in some limbo state. + */ + crypto_remove_final(&remove_list); + crypto_remove_final(&spawns); + + up_write(&crypto_alg_sem); +} + +static void __init unapply_text_relocations(void *section, int section_size, + const Elf64_Rela *rela, int numrels) +{ + while (numrels--) { + u32 *place = (u32 *)(section + rela->r_offset); + + BUG_ON(rela->r_offset >= section_size); + + switch (ELF64_R_TYPE(rela->r_info)) { +#ifdef CONFIG_ARM64 + case R_AARCH64_JUMP26: + case R_AARCH64_CALL26: + *place &= ~GENMASK(25, 0); + break; + + case R_AARCH64_ADR_PREL_LO21: + case R_AARCH64_ADR_PREL_PG_HI21: + case R_AARCH64_ADR_PREL_PG_HI21_NC: + *place &= ~(GENMASK(30, 29) | GENMASK(23, 5)); + break; + + case R_AARCH64_ADD_ABS_LO12_NC: + case R_AARCH64_LDST8_ABS_LO12_NC: + case R_AARCH64_LDST16_ABS_LO12_NC: + case R_AARCH64_LDST32_ABS_LO12_NC: + case R_AARCH64_LDST64_ABS_LO12_NC: + case R_AARCH64_LDST128_ABS_LO12_NC: + *place &= ~GENMASK(21, 10); + break; + default: + pr_err("unhandled relocation type %llu\n", + ELF64_R_TYPE(rela->r_info)); + BUG(); +#else +#error +#endif + } + rela++; + } +} + +static void __init unapply_rodata_relocations(void *section, int section_size, + const Elf64_Rela *rela, int numrels) +{ + while (numrels--) { + void *place = section + rela->r_offset; + + BUG_ON(rela->r_offset >= section_size); + + switch (ELF64_R_TYPE(rela->r_info)) { +#ifdef CONFIG_ARM64 + case R_AARCH64_ABS64: + *(u64 *)place = 0; + break; + default: + pr_err("unhandled relocation type %llu\n", + ELF64_R_TYPE(rela->r_info)); + BUG(); +#else +#error +#endif + } + rela++; + } +} + +static bool __init check_fips140_module_hmac(void) +{ + SHASH_DESC_ON_STACK(desc, dontcare); + u8 digest[SHA256_DIGEST_SIZE]; + void *textcopy, *rodatacopy; + int textsize, rodatasize; + int err; + + textsize = &__fips140_text_end - &__fips140_text_start; + rodatasize = &__fips140_rodata_end - &__fips140_rodata_start; + + pr_warn("text size : 0x%x\n", textsize); + pr_warn("rodata size: 0x%x\n", rodatasize); + + textcopy = kmalloc(textsize + rodatasize, GFP_KERNEL); + if (!textcopy) { + pr_err("Failed to allocate memory for copy of .text\n"); + return false; + } + + rodatacopy = textcopy + textsize; + + memcpy(textcopy, __text_start, textsize); + memcpy(rodatacopy, __rodata_start, rodatasize); + + // apply the relocations in reverse on the copies of .text and .rodata + unapply_text_relocations(textcopy, textsize, + __this_module.arch.text_relocations, + __this_module.arch.num_text_relocations); + + unapply_rodata_relocations(rodatacopy, rodatasize, + __this_module.arch.rodata_relocations, + __this_module.arch.num_rodata_relocations); + + kfree(__this_module.arch.text_relocations); + kfree(__this_module.arch.rodata_relocations); + + desc->tfm = crypto_alloc_shash("hmac(sha256)", 0, 0); + if (IS_ERR(desc->tfm)) { + pr_err("failed to allocate hmac tfm (%ld)\n", PTR_ERR(desc->tfm)); + kfree(textcopy); + return false; + } + + pr_warn("using '%s' for integrity check\n", + crypto_shash_driver_name(desc->tfm)); + + err = crypto_shash_setkey(desc->tfm, fips140_integ_hmac_key, + strlen(fips140_integ_hmac_key)) ?: + crypto_shash_init(desc) ?: + crypto_shash_update(desc, textcopy, textsize) ?: + crypto_shash_finup(desc, rodatacopy, rodatasize, digest); + + crypto_free_shash(desc->tfm); + kfree(textcopy); + + if (err) { + pr_err("failed to calculate hmac shash (%d)\n", err); + return false; + } + + if (memcmp(digest, fips140_integ_hmac_digest, sizeof(digest))) { + pr_err("provided_digest : %*phN\n", (int)sizeof(digest), + fips140_integ_hmac_digest); + + pr_err("calculated digest: %*phN\n", (int)sizeof(digest), + digest); + + return false; + } + + return true; +} + +static bool __init update_live_fips140_algos(void) +{ + struct crypto_alg *alg, *new_alg, *tmp; + + /* + * Find all algorithms that we could not unregister the last time + * around, due to the fact that they were already in use. + */ + down_write(&crypto_alg_sem); + list_for_each_entry_safe(alg, tmp, &unchecked_fips140_algos, cra_list) { + + /* + * Take this algo off the list before releasing the lock. This + * ensures that a concurrent invocation of + * crypto_unregister_alg() observes a consistent state, i.e., + * the algo is still on the list, and crypto_unregister_alg() + * will release it, or it is not, and crypto_unregister_alg() + * will issue a warning but ignore this condition otherwise. + */ + list_del_init(&alg->cra_list); + up_write(&crypto_alg_sem); + + /* + * Grab the algo that will replace the live one. + * Note that this will instantiate template based instances as + * well, as long as their driver name uses the conventional + * pattern of "template(algo)". In this case, we are relying on + * the fact that the templates carried by this module will + * supersede the builtin ones, due to the fact that they were + * registered later, and therefore appear first in the linked + * list. For example, "hmac(sha1-ce)" constructed using the + * builtin hmac template and the builtin SHA1 driver will be + * superseded by the integrity checked versions of HMAC and + * SHA1-ce carried in this module. + * + * Note that this takes a reference to the new algorithm which + * will never get released. This is intentional: once we copy + * the function pointers from the new algo into the old one, we + * cannot drop the new algo unless we are sure that the old one + * has been released, and this is someting we don't keep track + * of at the moment. + */ + new_alg = crypto_alg_mod_lookup(alg->cra_driver_name, + alg->cra_flags & CRYPTO_ALG_TYPE_MASK, + CRYPTO_ALG_TYPE_MASK | CRYPTO_NOLOAD); + + if (IS_ERR(new_alg)) { + pr_crit("Failed to allocate '%s' for updating live algo (%ld)\n", + alg->cra_driver_name, PTR_ERR(new_alg)); + return false; + } + + /* + * The FIPS module's algorithms are expected to be built from + * the same source code as the in-kernel ones so that they are + * fully compatible. In general, there's no way to verify full + * compatibility at runtime, but we can at least verify that + * the algorithm properties match. + */ + if (alg->cra_ctxsize != new_alg->cra_ctxsize || + alg->cra_alignmask != new_alg->cra_alignmask) { + pr_crit("Failed to update live algo '%s' due to mismatch:\n" + "cra_ctxsize : %u vs %u\n" + "cra_alignmask : 0x%x vs 0x%x\n", + alg->cra_driver_name, + alg->cra_ctxsize, new_alg->cra_ctxsize, + alg->cra_alignmask, new_alg->cra_alignmask); + return false; + } + + /* + * Update the name and priority so the algorithm stands out as + * one that was updated in order to comply with FIPS140, and + * that it is not the preferred version for further use. + */ + strlcat(alg->cra_name, "+orig", CRYPTO_MAX_ALG_NAME); + alg->cra_priority = 0; + + switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) { + struct aead_alg *old_aead, *new_aead; + struct skcipher_alg *old_skcipher, *new_skcipher; + struct shash_alg *old_shash, *new_shash; + struct rng_alg *old_rng, *new_rng; + + case CRYPTO_ALG_TYPE_CIPHER: + alg->cra_u.cipher = new_alg->cra_u.cipher; + break; + + case CRYPTO_ALG_TYPE_AEAD: + old_aead = container_of(alg, struct aead_alg, base); + new_aead = container_of(new_alg, struct aead_alg, base); + + old_aead->setkey = new_aead->setkey; + old_aead->setauthsize = new_aead->setauthsize; + old_aead->encrypt = new_aead->encrypt; + old_aead->decrypt = new_aead->decrypt; + old_aead->init = new_aead->init; + old_aead->exit = new_aead->exit; + break; + + case CRYPTO_ALG_TYPE_SKCIPHER: + old_skcipher = container_of(alg, struct skcipher_alg, base); + new_skcipher = container_of(new_alg, struct skcipher_alg, base); + + old_skcipher->setkey = new_skcipher->setkey; + old_skcipher->encrypt = new_skcipher->encrypt; + old_skcipher->decrypt = new_skcipher->decrypt; + old_skcipher->init = new_skcipher->init; + old_skcipher->exit = new_skcipher->exit; + break; + + case CRYPTO_ALG_TYPE_SHASH: + old_shash = container_of(alg, struct shash_alg, base); + new_shash = container_of(new_alg, struct shash_alg, base); + + old_shash->init = new_shash->init; + old_shash->update = new_shash->update; + old_shash->final = new_shash->final; + old_shash->finup = new_shash->finup; + old_shash->digest = new_shash->digest; + old_shash->export = new_shash->export; + old_shash->import = new_shash->import; + old_shash->setkey = new_shash->setkey; + old_shash->init_tfm = new_shash->init_tfm; + old_shash->exit_tfm = new_shash->exit_tfm; + break; + + case CRYPTO_ALG_TYPE_RNG: + old_rng = container_of(alg, struct rng_alg, base); + new_rng = container_of(new_alg, struct rng_alg, base); + + old_rng->generate = new_rng->generate; + old_rng->seed = new_rng->seed; + old_rng->set_ent = new_rng->set_ent; + break; + default: + /* + * This should never happen: every item on the + * fips140_algorithms list should match one of the + * cases above, so if we end up here, something is + * definitely wrong. + */ + pr_crit("Unexpected type %u for algo %s, giving up ...\n", + alg->cra_flags & CRYPTO_ALG_TYPE_MASK, + alg->cra_driver_name); + return false; + } + + /* + * Move the algorithm back to the algorithm list, so it is + * visible in /proc/crypto et al. + */ + down_write(&crypto_alg_sem); + list_add_tail(&alg->cra_list, &crypto_alg_list); + } + up_write(&crypto_alg_sem); + + return true; +} + +static void fips140_sha256(void *p, const u8 *data, unsigned int len, u8 *out, + int *hook_inuse) +{ + sha256(data, len, out); + *hook_inuse = 1; +} + +static void fips140_aes_expandkey(void *p, struct crypto_aes_ctx *ctx, + const u8 *in_key, unsigned int key_len, + int *err) +{ + *err = aes_expandkey(ctx, in_key, key_len); +} + +static void fips140_aes_encrypt(void *priv, const struct crypto_aes_ctx *ctx, + u8 *out, const u8 *in, int *hook_inuse) +{ + aes_encrypt(ctx, out, in); + *hook_inuse = 1; +} + +static void fips140_aes_decrypt(void *priv, const struct crypto_aes_ctx *ctx, + u8 *out, const u8 *in, int *hook_inuse) +{ + aes_decrypt(ctx, out, in); + *hook_inuse = 1; +} + +static bool update_fips140_library_routines(void) +{ + int ret; + + ret = register_trace_android_vh_sha256(fips140_sha256, NULL) ?: + register_trace_android_vh_aes_expandkey(fips140_aes_expandkey, NULL) ?: + register_trace_android_vh_aes_encrypt(fips140_aes_encrypt, NULL) ?: + register_trace_android_vh_aes_decrypt(fips140_aes_decrypt, NULL); + + return ret == 0; +} + +/* + * Initialize the FIPS 140 module. + * + * Note: this routine iterates over the contents of the initcall section, which + * consists of an array of function pointers that was emitted by the linker + * rather than the compiler. This means that these function pointers lack the + * usual CFI stubs that the compiler emits when CFI codegen is enabled. So + * let's disable CFI locally when handling the initcall array, to avoid + * surpises. + */ +int __init __attribute__((__no_sanitize__("cfi"))) fips140_init(void) +{ + const u32 *initcall; + + pr_info("Loading FIPS 140 module\n"); + + unregister_existing_fips140_algos(); + + /* iterate over all init routines present in this module and call them */ + for (initcall = __initcall_start + 1; + initcall < &__initcall_end_marker; + initcall++) { + int (*init)(void) = offset_to_ptr(initcall); + + init(); + } + + if (!update_live_fips140_algos()) + goto panic; + + if (!update_fips140_library_routines()) + goto panic; + + /* + * Wait until all tasks have at least been scheduled once and preempted + * voluntarily. This ensures that none of the superseded algorithms that + * were already in use will still be live. + */ + synchronize_rcu_tasks(); + + /* insert self tests here */ + + /* + * It may seem backward to perform the integrity check last, but this + * is intentional: the check itself uses hmac(sha256) which is one of + * the algorithms that are replaced with versions from this module, and + * the integrity check must use the replacement version. + */ + + if (!check_fips140_module_hmac()) { + pr_crit("FIPS 140 integrity check failed -- giving up!\n"); + goto panic; + } + + pr_info("FIPS 140 integrity check successful\n"); + pr_info("FIPS 140 module successfully loaded\n"); + return 0; + +panic: + panic("FIPS 140 module load failure"); +} + +module_init(fips140_init); + +MODULE_IMPORT_NS(CRYPTO_INTERNAL); +MODULE_LICENSE("GPL v2"); + +/* + * Crypto-related helper functions, reproduced here so that they will be + * covered by the FIPS 140 integrity check. + * + * Non-cryptographic helper functions such as memcpy() can be excluded from the + * FIPS module, but there is ambiguity about other helper functions like + * __crypto_xor() and crypto_inc() which aren't cryptographic by themselves, + * but are more closely associated with cryptography than e.g. memcpy(). To + * err on the side of caution, we include copies of these in the FIPS module. + */ +void __crypto_xor(u8 *dst, const u8 *src1, const u8 *src2, unsigned int len) +{ + while (len >= 8) { + *(u64 *)dst = *(u64 *)src1 ^ *(u64 *)src2; + dst += 8; + src1 += 8; + src2 += 8; + len -= 8; + } + + while (len >= 4) { + *(u32 *)dst = *(u32 *)src1 ^ *(u32 *)src2; + dst += 4; + src1 += 4; + src2 += 4; + len -= 4; + } + + while (len >= 2) { + *(u16 *)dst = *(u16 *)src1 ^ *(u16 *)src2; + dst += 2; + src1 += 2; + src2 += 2; + len -= 2; + } + + while (len--) + *dst++ = *src1++ ^ *src2++; +} + +void crypto_inc(u8 *a, unsigned int size) +{ + a += size; + + while (size--) + if (++*--a) + break; +} diff --git a/scripts/module.lds.S b/scripts/module.lds.S index ea11e2146183..1713fc5383bb 100644 --- a/scripts/module.lds.S +++ b/scripts/module.lds.S @@ -50,8 +50,10 @@ SECTIONS { } .rodata : { + *(.rodata.._start) *(.rodata .rodata.[0-9a-zA-Z_]*) *(.rodata..L*) + *(.rodata.._end) } #ifdef CONFIG_CFI_CLANG @@ -60,11 +62,13 @@ SECTIONS { * .text section, and that the section is aligned to page size. */ .text : ALIGN(PAGE_SIZE) { + *(.text.._start) *(.text.__cfi_check) *(.text .text.[0-9a-zA-Z_]*) __cfi_jt_start = .; *(.text..L.cfi.jumptable .text..L.cfi.jumptable.*) __cfi_jt_end = .; + *(.text.._end) } #endif #endif From 868be244bbed222bc2dd85d5891effce7b8d1e29 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Mon, 26 Apr 2021 15:15:22 +0000 Subject: [PATCH 184/196] ANDROID: inject correct HMAC digest into fips140.ko at build time Inject the HMAC digest into the fips140.ko module once it has been built. This involves a post-link step, so we need to use a special Makefile that is wired up in the right way, and includes the special handling only for fips140.ko in particular. Bug: 153614920 Bug: 188620248 Change-Id: Ic66086a05fa997850ca15dedbbc14fc73f6f0da6 Signed-off-by: Ard Biesheuvel --- arch/arm64/Makefile.postlink | 38 +++++++++++ crypto/Makefile | 3 + crypto/fips140_gen_hmac.c | 129 +++++++++++++++++++++++++++++++++++ 3 files changed, 170 insertions(+) create mode 100644 arch/arm64/Makefile.postlink create mode 100644 crypto/fips140_gen_hmac.c diff --git a/arch/arm64/Makefile.postlink b/arch/arm64/Makefile.postlink new file mode 100644 index 000000000000..eedcf35f8d94 --- /dev/null +++ b/arch/arm64/Makefile.postlink @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: GPL-2.0 + +# +# This file is included by the generic Kbuild makefile to permit the +# architecture to perform postlink actions on vmlinux and any .ko module file. +# In this case, we only need it for fips140.ko, which needs a HMAC digest to be +# injected into it. All other targets are NOPs. +# + +PHONY := __archpost +__archpost: + +-include include/config/auto.conf +include scripts/Kbuild.include + +CMD_FIPS140_GEN_HMAC = crypto/fips140_gen_hmac +quiet_cmd_gen_hmac = HMAC $@ + cmd_gen_hmac = $(CMD_FIPS140_GEN_HMAC) $@ + +# `@true` prevents complaints when there is nothing to be done + +vmlinux: FORCE + @true + +$(objtree)/crypto/fips140.ko: FORCE + $(call cmd,gen_hmac) + +%.ko: FORCE + @true + +clean: + @true + +PHONY += FORCE clean + +FORCE: + +.PHONY: $(PHONY) diff --git a/crypto/Makefile b/crypto/Makefile index 6c117defa554..63874cb2d4d4 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -233,4 +233,7 @@ obj-m += fips140.o CFLAGS_fips140-module.o += $(FIPS140_CFLAGS) +hostprogs-always-y := fips140_gen_hmac +HOSTLDLIBS_fips140_gen_hmac := -lcrypto -lelf + endif diff --git a/crypto/fips140_gen_hmac.c b/crypto/fips140_gen_hmac.c new file mode 100644 index 000000000000..eebdc729ca99 --- /dev/null +++ b/crypto/fips140_gen_hmac.c @@ -0,0 +1,129 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2021 - Google LLC + * Author: Ard Biesheuvel + * + * This is a host tool that is intended to be used to take the HMAC digest of + * the .text and .rodata sections of the fips140.ko module, and store it inside + * the module. The module will perform an integrity selfcheck at module_init() + * time, by recalculating the digest and comparing it with the value calculated + * here. + * + * Note that the peculiar way an HMAC is being used as a digest with a public + * key rather than as a symmetric key signature is mandated by FIPS 140-2. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +static Elf64_Ehdr *ehdr; +static Elf64_Shdr *shdr; +static int num_shdr; +static const char *strtab; +static Elf64_Sym *syms; +static int num_syms; + +static Elf64_Shdr *find_symtab_section(void) +{ + int i; + + for (i = 0; i < num_shdr; i++) + if (shdr[i].sh_type == SHT_SYMTAB) + return &shdr[i]; + return NULL; +} + +static void *get_sym_addr(const char *sym_name) +{ + int i; + + for (i = 0; i < num_syms; i++) + if (!strcmp(strtab + syms[i].st_name, sym_name)) + return (void *)ehdr + shdr[syms[i].st_shndx].sh_offset + + syms[i].st_value; + return NULL; +} + +static void hmac_section(HMAC_CTX *hmac, const char *start, const char *end) +{ + void *start_addr = get_sym_addr(start); + void *end_addr = get_sym_addr(end); + + HMAC_Update(hmac, start_addr, end_addr - start_addr); +} + +int main(int argc, char **argv) +{ + Elf64_Shdr *symtab_shdr; + const char *hmac_key; + unsigned char *dg; + unsigned int dglen; + struct stat stat; + HMAC_CTX *hmac; + int fd, ret; + + if (argc < 2) { + fprintf(stderr, "file argument missing\n"); + exit(EXIT_FAILURE); + } + + fd = open(argv[1], O_RDWR); + if (fd < 0) { + fprintf(stderr, "failed to open %s\n", argv[1]); + exit(EXIT_FAILURE); + } + + ret = fstat(fd, &stat); + if (ret < 0) { + fprintf(stderr, "failed to stat() %s\n", argv[1]); + exit(EXIT_FAILURE); + } + + ehdr = mmap(0, stat.st_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + if (ehdr == MAP_FAILED) { + fprintf(stderr, "failed to mmap() %s\n", argv[1]); + exit(EXIT_FAILURE); + } + + shdr = (void *)ehdr + ehdr->e_shoff; + num_shdr = ehdr->e_shnum; + + symtab_shdr = find_symtab_section(); + + syms = (void *)ehdr + symtab_shdr->sh_offset; + num_syms = symtab_shdr->sh_size / sizeof(Elf64_Sym); + + strtab = (void *)ehdr + shdr[symtab_shdr->sh_link].sh_offset; + + hmac_key = get_sym_addr("fips140_integ_hmac_key"); + if (!hmac_key) { + fprintf(stderr, "failed to locate HMAC key in binary\n"); + exit(EXIT_FAILURE); + } + + dg = get_sym_addr("fips140_integ_hmac_digest"); + if (!dg) { + fprintf(stderr, "failed to locate HMAC digest in binary\n"); + exit(EXIT_FAILURE); + } + + hmac = HMAC_CTX_new(); + HMAC_Init_ex(hmac, hmac_key, strlen(hmac_key), EVP_sha256(), NULL); + + hmac_section(hmac, "__fips140_text_start", "__fips140_text_end"); + hmac_section(hmac, "__fips140_rodata_start", "__fips140_rodata_end"); + + HMAC_Final(hmac, dg, &dglen); + + close(fd); + return 0; +} From a11dacedd687ed3ed223ba80e75b6cededc7dddf Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Tue, 13 Apr 2021 18:29:26 +0200 Subject: [PATCH 185/196] ANDROID: add fips140.ko symbols to module ABI Leaf changes summary: 71 artifacts changed (1 filtered out) Changed leaf types summary: 0 (1 filtered out) leaf type changed Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 61 Added functions Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 10 Added variables Function symbols changes summary: 0 Removed, 1 Added function symbol not referenced by debug info Variable symbols changes summary: 0 Removed, 2 Added variable symbols not referenced by debug info 61 Added functions: [A] 'function unsigned long int __crypto_memneq(void*, void*, size_t)' [A] 'function void __crypto_xor(u8*, const u8*, const u8*, unsigned int)' [A] 'function int __traceiter_android_vh_aes_decrypt(void*, const crypto_aes_ctx*, u8*, const u8*, int*)' [A] 'function int __traceiter_android_vh_aes_encrypt(void*, const crypto_aes_ctx*, u8*, const u8*, int*)' [A] 'function int __traceiter_android_vh_aes_expandkey(void*, crypto_aes_ctx*, const u8*, unsigned int, int*)' [A] 'function int __traceiter_android_vh_sha256(void*, const u8*, unsigned int, u8*, int*)' [A] 'function int add_random_ready_callback(random_ready_callback*)' [A] 'function int aead_register_instance(crypto_template*, aead_instance*)' [A] 'function void aes_decrypt(const crypto_aes_ctx*, unsigned char*, const unsigned char*)' [A] 'function int ce_aes_expandkey(crypto_aes_ctx*, const u8*, unsigned int)' [A] 'function bool cpu_have_feature(unsigned int)' [A] 'function int crypto_aes_set_key(crypto_tfm*, const u8*, unsigned int)' [A] 'function int crypto_ahash_finup(ahash_request*)' [A] 'function crypto_alg* crypto_alg_mod_lookup(const char*, u32, u32)' [A] 'function crypto_rng* crypto_alloc_rng(const char*, u32, u32)' [A] 'function const char* crypto_attr_alg_name(rtattr*)' [A] 'function int crypto_check_attr_type(rtattr**, u32, u32*)' [A] 'function void crypto_drop_spawn(crypto_spawn*)' [A] 'function crypto_sync_skcipher* crypto_get_default_null_skcipher()' [A] 'function int crypto_grab_aead(crypto_aead_spawn*, crypto_instance*, const char*, u32, u32)' [A] 'function int crypto_grab_ahash(crypto_ahash_spawn*, crypto_instance*, const char*, u32, u32)' [A] 'function int crypto_grab_shash(crypto_shash_spawn*, crypto_instance*, const char*, u32, u32)' [A] 'function int crypto_grab_skcipher(crypto_skcipher_spawn*, crypto_instance*, const char*, u32, u32)' [A] 'function void crypto_inc(u8*, unsigned int)' [A] 'function int crypto_inst_setname(crypto_instance*, const char*, crypto_alg*)' [A] 'function void crypto_put_default_null_skcipher()' [A] 'function int crypto_register_shash(shash_alg*)' [A] 'function int crypto_register_shashes(shash_alg*, int)' [A] 'function int crypto_register_skciphers(skcipher_alg*, int)' [A] 'function int crypto_register_template(crypto_template*)' [A] 'function int crypto_register_templates(crypto_template*, int)' [A] 'function void crypto_remove_final(list_head*)' [A] 'function void crypto_remove_spawns(crypto_alg*, list_head*, crypto_alg*)' [A] 'function void crypto_req_done(crypto_async_request*, int)' [A] 'function int crypto_sha1_finup(shash_desc*, const u8*, unsigned int, u8*)' [A] 'function int crypto_sha1_update(shash_desc*, const u8*, unsigned int)' [A] 'function bool crypto_shash_alg_has_setkey(shash_alg*)' [A] 'function int crypto_shash_tfm_digest(crypto_shash*, const unsigned char*, unsigned int, unsigned char*)' [A] 'function void* crypto_spawn_tfm2(crypto_spawn*)' [A] 'function void crypto_unregister_shash(shash_alg*)' [A] 'function void crypto_unregister_shashes(shash_alg*, int)' [A] 'function void crypto_unregister_skciphers(skcipher_alg*, int)' [A] 'function void crypto_unregister_template(crypto_template*)' [A] 'function void crypto_unregister_templates(crypto_template*, int)' [A] 'function void del_random_ready_callback(random_ready_callback*)' [A] 'function void gf128mul_lle(be128*, const be128*)' [A] 'function void kernel_neon_begin()' [A] 'function void kernel_neon_end()' [A] 'function void sha1_transform(unsigned int*, const char*, unsigned int*)' [A] 'function void sha224_final(sha256_state*, u8*)' [A] 'function void sha256(const unsigned char*, unsigned int, unsigned char*)' [A] 'function void sha256_final(sha256_state*, u8*)' [A] 'function void sha256_update(sha256_state*, const unsigned char*, unsigned int)' [A] 'function void shash_free_singlespawn_instance(shash_instance*)' [A] 'function int shash_register_instance(crypto_template*, shash_instance*)' [A] 'function skcipher_instance* skcipher_alloc_instance_simple(crypto_template*, rtattr**)' [A] 'function int skcipher_register_instance(crypto_template*, skcipher_instance*)' [A] 'function int skcipher_walk_aead_decrypt(skcipher_walk*, aead_request*, bool)' [A] 'function int skcipher_walk_aead_encrypt(skcipher_walk*, aead_request*, bool)' [A] 'function int skcipher_walk_done(skcipher_walk*, int)' [A] 'function int skcipher_walk_virt(skcipher_walk*, skcipher_request*, bool)' 10 Added variables: [A] 'tracepoint __tracepoint_android_vh_aes_decrypt' [A] 'tracepoint __tracepoint_android_vh_aes_encrypt' [A] 'tracepoint __tracepoint_android_vh_aes_expandkey' [A] 'tracepoint __tracepoint_android_vh_sha256' [A] 'list_head crypto_alg_list' [A] 'rw_semaphore crypto_alg_sem' [A] 'const u32 crypto_ft_tab[4][256]' [A] 'const u32 crypto_it_tab[4][256]' [A] 'bool fpsimd_context_busy' [A] 'irq_cpustat_t irq_stat' 1 Added function symbol not referenced by debug info: [A] sha256_block_data_order 2 Added variable symbols not referenced by debug info: [A] crypto_aes_inv_sbox [A] crypto_aes_sbox Bug: 153614920 Bug: 188620248 Change-Id: I998bca871f6a7c08a78e2537586653bcb0308ed1 Signed-off-by: Ard Biesheuvel --- android/abi_gki_aarch64 | 124 + android/abi_gki_aarch64.xml | 131298 +++++++++++++++-------------- android/abi_gki_aarch64_fips140 | 25 + build.config.gki.aarch64 | 1 + 4 files changed, 67875 insertions(+), 63573 deletions(-) create mode 100644 android/abi_gki_aarch64_fips140 diff --git a/android/abi_gki_aarch64 b/android/abi_gki_aarch64 index 57914f291962..61f478444272 100644 --- a/android/abi_gki_aarch64 +++ b/android/abi_gki_aarch64 @@ -2,3 +2,127 @@ # commonly used symbols module_layout __put_task_struct + +# required by fips140.ko + add_random_ready_callback + aead_register_instance + bcmp + cancel_work_sync + __cfi_slowpath + cpu_have_feature + crypto_aead_decrypt + crypto_aead_encrypt + crypto_aead_setauthsize + crypto_aead_setkey + crypto_ahash_finup + crypto_ahash_setkey + crypto_alg_list + crypto_alg_mod_lookup + crypto_alg_sem + crypto_alloc_base + crypto_alloc_rng + crypto_alloc_shash + crypto_attr_alg_name + crypto_check_attr_type + crypto_cipher_encrypt_one + crypto_cipher_setkey + crypto_destroy_tfm + crypto_drop_spawn + crypto_get_default_null_skcipher + crypto_grab_aead + crypto_grab_ahash + crypto_grab_shash + crypto_grab_skcipher + crypto_inst_setname + crypto_put_default_null_skcipher + crypto_register_aead + crypto_register_alg + crypto_register_rngs + crypto_register_shash + crypto_register_shashes + crypto_register_skciphers + crypto_register_template + crypto_register_templates + crypto_remove_final + crypto_remove_spawns + crypto_req_done + crypto_shash_alg_has_setkey + crypto_shash_digest + crypto_shash_final + crypto_shash_finup + crypto_shash_setkey + crypto_shash_tfm_digest + crypto_shash_update + crypto_skcipher_decrypt + crypto_skcipher_encrypt + crypto_skcipher_setkey + crypto_spawn_tfm2 + crypto_unregister_aead + crypto_unregister_alg + crypto_unregister_rngs + crypto_unregister_shash + crypto_unregister_shashes + crypto_unregister_skciphers + crypto_unregister_template + crypto_unregister_templates + del_random_ready_callback + down_write + fpsimd_context_busy + get_random_bytes + __init_swait_queue_head + irq_stat + kasan_flag_enabled + kernel_neon_begin + kernel_neon_end + kfree + kfree_sensitive + __kmalloc + kmalloc_caches + kmalloc_order_trace + kmem_cache_alloc_trace + __list_add_valid + __list_del_entry_valid + memcpy + memset + __mutex_init + mutex_lock + mutex_unlock + panic + preempt_schedule + preempt_schedule_notrace + printk + queue_work_on + scatterwalk_ffwd + scatterwalk_map_and_copy + sg_init_one + sg_init_table + sg_next + shash_free_singlespawn_instance + shash_register_instance + skcipher_alloc_instance_simple + skcipher_register_instance + skcipher_walk_aead_decrypt + skcipher_walk_aead_encrypt + skcipher_walk_done + skcipher_walk_virt + snprintf + __stack_chk_fail + __stack_chk_guard + strcmp + strlcat + strlcpy + strlen + strncmp + synchronize_rcu_tasks + system_wq + __traceiter_android_vh_aes_decrypt + __traceiter_android_vh_aes_encrypt + __traceiter_android_vh_aes_expandkey + __traceiter_android_vh_sha256 + __tracepoint_android_vh_aes_decrypt + __tracepoint_android_vh_aes_encrypt + __tracepoint_android_vh_aes_expandkey + __tracepoint_android_vh_sha256 + tracepoint_probe_register + up_write + wait_for_completion diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml index 63c20dad7282..49b6d8605f9c 100644 --- a/android/abi_gki_aarch64.xml +++ b/android/abi_gki_aarch64.xml @@ -53,6 +53,8 @@ + + @@ -291,6 +293,9 @@ + + + @@ -334,6 +339,7 @@ + @@ -454,12 +460,15 @@ + + + @@ -680,6 +689,7 @@ + @@ -819,6 +829,7 @@ + @@ -881,45 +892,78 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -968,6 +1012,7 @@ + @@ -1916,6 +1961,7 @@ + @@ -2327,6 +2373,8 @@ + + @@ -3554,6 +3602,14 @@ + + + + + + + + @@ -3610,6 +3666,12 @@ + + + + + + @@ -4675,6 +4737,9 @@ + + + @@ -4723,6 +4788,7 @@ + @@ -4809,6 +4875,12 @@ + + + + + + @@ -4818,6 +4890,7 @@ + @@ -4837,6 +4910,7 @@ + @@ -4929,84 +5003,165 @@ - - + + + + + + + + + + + + + + + + + + + + + + - - - - - - - - - - - - - - - + + + + + + + + + + + + + + + + + + + + - + + + + + + + + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - + + + + + + + + + + + + + + + + + - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -5225,19 +5380,53 @@ - + + + + + + + + - + - + - + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -5345,6 +5534,9 @@ + + + @@ -5355,14 +5547,17 @@ + + - + + - + @@ -5407,6 +5602,17 @@ + + + + + + + + + + + @@ -5546,12 +5752,18 @@ + + + + + - + + @@ -5564,7 +5776,10 @@ - + + + + @@ -5750,6 +5965,7 @@ + @@ -5757,12 +5973,11 @@ + - - - + @@ -5991,7 +6206,7 @@ - + @@ -6015,10 +6230,8 @@ + - - - @@ -6031,7 +6244,7 @@ - + @@ -6108,11 +6321,6 @@ - - - - - @@ -6180,6 +6388,14 @@ + + + + + + + + @@ -6259,7 +6475,7 @@ - + @@ -6270,7 +6486,6 @@ - @@ -6500,6 +6715,20 @@ + + + + + + + + + + + + + + @@ -6583,6 +6812,7 @@ + @@ -6600,20 +6830,7 @@ - - - - - - - - - - - - - - + @@ -6681,6 +6898,17 @@ + + + + + + + + + + + @@ -6758,12 +6986,12 @@ - + - + @@ -6777,7 +7005,7 @@ - + @@ -7068,7 +7296,7 @@ - + @@ -7076,7 +7304,7 @@ - + @@ -9358,7 +9586,7 @@ - + @@ -10439,7 +10667,17 @@ - + + + + + + + + + + + @@ -11035,7 +11273,7 @@ - + @@ -11049,17 +11287,17 @@ - + - + - + @@ -11145,7 +11383,7 @@ - + @@ -11156,7 +11394,7 @@ - + @@ -11164,7 +11402,7 @@ - + @@ -11172,7 +11410,7 @@ - + @@ -11219,9 +11457,6 @@ - - - @@ -12197,6 +12432,11 @@ + + + + + @@ -12401,7 +12641,7 @@ - + @@ -12415,7 +12655,7 @@ - + @@ -12432,7 +12672,7 @@ - + @@ -12440,7 +12680,7 @@ - + @@ -12460,7 +12700,7 @@ - + @@ -12699,6 +12939,7 @@ + @@ -12723,7 +12964,7 @@ - + @@ -12731,7 +12972,7 @@ - + @@ -12739,7 +12980,7 @@ - + @@ -12747,7 +12988,7 @@ - + @@ -12755,7 +12996,7 @@ - + @@ -14826,7 +15067,7 @@ - + @@ -14834,7 +15075,7 @@ - + @@ -14845,7 +15086,7 @@ - + @@ -14853,7 +15094,7 @@ - + @@ -14867,7 +15108,7 @@ - + @@ -14892,7 +15133,7 @@ - + @@ -14900,7 +15141,7 @@ - + @@ -15013,7 +15254,7 @@ - + @@ -15021,7 +15262,7 @@ - + @@ -15035,7 +15276,7 @@ - + @@ -15066,7 +15307,7 @@ - + @@ -17976,12 +18217,12 @@ - + - + @@ -17998,7 +18239,7 @@ - + @@ -18006,7 +18247,7 @@ - + @@ -18014,7 +18255,7 @@ - + @@ -18036,7 +18277,7 @@ - + @@ -18050,7 +18291,7 @@ - + @@ -18061,7 +18302,7 @@ - + @@ -18078,7 +18319,7 @@ - + @@ -18095,7 +18336,7 @@ - + @@ -18274,7 +18515,7 @@ - + @@ -18323,7 +18564,7 @@ - + @@ -18331,7 +18572,7 @@ - + @@ -18339,7 +18580,7 @@ - + @@ -18347,7 +18588,7 @@ - + @@ -18355,7 +18596,7 @@ - + @@ -18363,7 +18604,7 @@ - + @@ -18374,7 +18615,7 @@ - + @@ -18382,7 +18623,7 @@ - + @@ -18390,7 +18631,7 @@ - + @@ -18398,7 +18639,7 @@ - + @@ -18406,7 +18647,7 @@ - + @@ -18414,7 +18655,7 @@ - + @@ -18425,7 +18666,7 @@ - + @@ -18439,8 +18680,7 @@ - - + @@ -20676,7 +20916,26 @@ - + + + + + + + + + + + + + + + + + + + + @@ -20790,7 +21049,7 @@ - + @@ -20807,7 +21066,7 @@ - + @@ -20818,7 +21077,7 @@ - + @@ -20826,7 +21085,7 @@ - + @@ -20840,7 +21099,7 @@ - + @@ -20851,7 +21110,7 @@ - + @@ -20859,7 +21118,7 @@ - + @@ -20867,7 +21126,7 @@ - + @@ -20875,17 +21134,17 @@ - + - + - + @@ -20904,7 +21163,7 @@ - + @@ -20912,7 +21171,7 @@ - + @@ -20923,7 +21182,7 @@ - + @@ -20931,7 +21190,7 @@ - + @@ -20963,7 +21222,6 @@ - @@ -21168,7 +21426,7 @@ - + @@ -21176,7 +21434,7 @@ - + @@ -21184,7 +21442,7 @@ - + @@ -21192,7 +21450,7 @@ - + @@ -21200,7 +21458,7 @@ - + @@ -21208,7 +21466,7 @@ - + @@ -21219,7 +21477,7 @@ - + @@ -24062,6 +24320,20 @@ + + + + + + + + + + + + + + @@ -24207,7 +24479,65 @@ - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -24268,7 +24598,7 @@ - + @@ -24290,17 +24620,17 @@ - + - + - + @@ -24311,7 +24641,7 @@ - + @@ -24319,7 +24649,7 @@ - + @@ -24335,12 +24665,12 @@ - + - + @@ -24375,7 +24705,6 @@ - @@ -24429,6 +24758,9 @@ + + + @@ -24469,7 +24801,7 @@ - + @@ -24477,7 +24809,7 @@ - + @@ -24485,7 +24817,7 @@ - + @@ -24493,7 +24825,7 @@ - + @@ -24507,7 +24839,7 @@ - + @@ -24521,7 +24853,7 @@ - + @@ -24529,7 +24861,7 @@ - + @@ -24537,7 +24869,7 @@ - + @@ -24557,7 +24889,7 @@ - + @@ -24565,7 +24897,7 @@ - + @@ -24573,7 +24905,7 @@ - + @@ -24589,7 +24921,7 @@ - + @@ -24597,7 +24929,7 @@ - + @@ -24605,7 +24937,7 @@ - + @@ -24613,7 +24945,7 @@ - + @@ -24630,7 +24962,7 @@ - + @@ -24641,7 +24973,7 @@ - + @@ -24649,7 +24981,7 @@ - + @@ -24657,7 +24989,7 @@ - + @@ -25400,7 +25732,47 @@ - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -25901,14 +26273,7 @@ - - - - - - - - + @@ -26654,12 +27019,12 @@ - + - + @@ -26667,7 +27032,7 @@ - + @@ -26678,7 +27043,7 @@ - + @@ -26686,7 +27051,7 @@ - + @@ -26700,17 +27065,17 @@ - + - + - + @@ -26724,7 +27089,7 @@ - + @@ -26732,7 +27097,7 @@ - + @@ -26743,7 +27108,7 @@ - + @@ -26775,7 +27140,7 @@ - + @@ -26783,7 +27148,7 @@ - + @@ -26791,7 +27156,7 @@ - + @@ -26799,7 +27164,7 @@ - + @@ -26816,7 +27181,7 @@ - + @@ -26824,7 +27189,7 @@ - + @@ -26860,6 +27225,7 @@ + @@ -26939,6 +27305,7 @@ + @@ -27054,6 +27421,8 @@ + + @@ -27080,6 +27449,7 @@ + @@ -27115,7 +27485,7 @@ - + @@ -27123,7 +27493,7 @@ - + @@ -27131,7 +27501,7 @@ - + @@ -27139,7 +27509,7 @@ - + @@ -27147,7 +27517,7 @@ - + @@ -27155,7 +27525,7 @@ - + @@ -27163,7 +27533,7 @@ - + @@ -27174,7 +27544,7 @@ - + @@ -27182,7 +27552,7 @@ - + @@ -27190,7 +27560,7 @@ - + @@ -27198,7 +27568,7 @@ - + @@ -27206,7 +27576,7 @@ - + @@ -27217,7 +27587,7 @@ - + @@ -27225,7 +27595,7 @@ - + @@ -27233,7 +27603,7 @@ - + @@ -27241,7 +27611,7 @@ - + @@ -27249,7 +27619,7 @@ - + @@ -27260,7 +27630,7 @@ - + @@ -27268,7 +27638,7 @@ - + @@ -27276,7 +27646,7 @@ - + @@ -27287,7 +27657,7 @@ - + @@ -27370,6 +27740,7 @@ + @@ -27812,6 +28183,14 @@ + + + + + + + + @@ -29077,14 +29456,7 @@ - - - - - - - - + @@ -29330,6 +29702,53 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -29536,7 +29955,7 @@ - + @@ -29544,7 +29963,7 @@ - + @@ -29552,7 +29971,7 @@ - + @@ -29560,12 +29979,12 @@ - + - + @@ -29584,7 +30003,7 @@ - + @@ -29604,7 +30023,7 @@ - + @@ -29612,7 +30031,7 @@ - + @@ -29632,6 +30051,7 @@ + @@ -29642,7 +30062,7 @@ - + @@ -29695,6 +30115,8 @@ + + @@ -29787,7 +30209,6 @@ - @@ -29893,7 +30314,18 @@ - + + + + + + + + + + + + @@ -29912,7 +30344,7 @@ - + @@ -29941,7 +30373,6 @@ - @@ -30391,21 +30822,79 @@ - + + - + - + - + + + + - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - + @@ -30834,6 +31323,72 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -31129,12 +31684,12 @@ - + - + @@ -31170,13 +31725,13 @@ - + @@ -31198,7 +31753,7 @@ - + @@ -31227,6 +31782,7 @@ + @@ -31406,7 +31962,7 @@ - + @@ -31414,7 +31970,7 @@ - + @@ -31471,6 +32027,12 @@ + + + + + + @@ -31582,6 +32144,14 @@ + + + + + + + + @@ -31599,6 +32169,17 @@ + + + + + + + + + + + @@ -32016,20 +32597,7 @@ - - - - - - - - - - - - - - + @@ -32254,7 +32822,7 @@ - + @@ -32308,7 +32876,6 @@ - @@ -32394,6 +32961,34 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -32407,6 +33002,7 @@ + @@ -32444,7 +33040,7 @@ - + @@ -32452,7 +33048,7 @@ - + @@ -32481,7 +33077,7 @@ - + @@ -32489,7 +33085,7 @@ - + @@ -32539,53 +33135,70 @@ + + + + + + + + + + + + + + + + + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + @@ -33101,7 +33714,7 @@ - + @@ -33163,8 +33776,10 @@ + + + - @@ -33174,8 +33789,7 @@ - - + @@ -33561,17 +34175,6 @@ - - - - - - - - - - - @@ -33728,7 +34331,7 @@ - + @@ -33736,7 +34339,7 @@ - + @@ -34562,5209 +35165,769 @@ - - - - - - - - + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + - + - + - + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + - + + + + - + + + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - @@ -185611,19 +190497,6 @@ - - - - - - - - - - - - - @@ -185648,728 +190521,6 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - @@ -186408,54 +190559,11 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - @@ -186466,59 +190574,10 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + + + @@ -186535,31 +190594,10 @@ - - - - - - - - - - - - - - - - - - - - - @@ -186630,57 +190668,23 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + + + + @@ -186690,23 +190694,11 @@ - - - - - - - - - - - - - - - - - + + + + + @@ -186720,33 +190712,8 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - + + @@ -186757,79 +190724,264 @@ + + + + + + + - + + + + - - - - - - - - - - - - - - - - - - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - - - - + + + + + - - - - - - - - - - + + + + + + + + + @@ -186864,11 +191016,6 @@ - - - - - @@ -188051,17 +192198,34 @@ - - - - - + + + - - - - + + + + + + + + + + + + + + + + + + + + + + + @@ -188076,61 +192240,6 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - @@ -190542,31 +194651,78 @@ + + + + + + + + + + + + + + + + + + + - - - - - - - - - - - + + + - - - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -190575,19 +194731,19 @@ - - - + + + - - - - + + + - - - + + + + @@ -190604,16 +194760,9 @@ - - - - - - - - - - + + + @@ -190621,14 +194770,16 @@ - - - - + + + + + + - - - + + + @@ -190636,31 +194787,25 @@ + + + + - - - - - - - - + + + + - - - - - - - - - + + + @@ -191143,14 +195288,6 @@ - - - - - - - - @@ -191158,6 +195295,14 @@ + + + + + + + + @@ -191166,9 +195311,25 @@ - - - + + + + + + + + + + + + + + + + + + + @@ -191179,15 +195340,6 @@ - - - - - - - - - @@ -191196,6 +195348,10 @@ + + + + @@ -191230,56 +195386,40 @@ - - - + + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -191295,29 +195435,59 @@ - - - - - - - - - - - + + - - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -191328,11 +195498,26 @@ - - - + + + + + + + + + + + + + + + + + + @@ -191343,47 +195528,14 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + + @@ -191421,18 +195573,6 @@ - - - - - - - - - - - - @@ -191521,24 +195661,14 @@ - - - + + + - - - - - - - - - - - - - + + + @@ -191546,9 +195676,9 @@ - - - + + + @@ -191556,24 +195686,14 @@ - - - + + + - - - - - - - - - - - - - + + + @@ -191581,19 +195701,34 @@ + + + + + + + + + + + + + + + - - - - + + + + - - - + + + @@ -191603,20 +195738,23 @@ - - - + + + + + + + + + + + + + - - - - - - - @@ -191625,6 +195763,8 @@ + + @@ -191633,6 +195773,18 @@ + + + + + + + + + + + + diff --git a/android/abi_gki_aarch64_fips140 b/android/abi_gki_aarch64_fips140 new file mode 100644 index 000000000000..e27e5251d604 --- /dev/null +++ b/android/abi_gki_aarch64_fips140 @@ -0,0 +1,25 @@ +[abi_symbol_list] + +# needed by fips140.ko but not identified by the tooling +# TODO(b/189327973): [GKI: ABI] Build of fips140.ko module fails to identify some symbols + __crypto_memneq + __crypto_xor + aes_decrypt + aes_encrypt + aes_expandkey + ce_aes_expandkey + crypto_aes_inv_sbox + crypto_aes_sbox + crypto_aes_set_key + crypto_ft_tab + crypto_inc + crypto_it_tab + crypto_sha1_finup + crypto_sha1_update + gf128mul_lle + sha1_transform + sha224_final + sha256 + sha256_block_data_order + sha256_final + sha256_update diff --git a/build.config.gki.aarch64 b/build.config.gki.aarch64 index ea237243ff21..e0ffb8869dc0 100644 --- a/build.config.gki.aarch64 +++ b/build.config.gki.aarch64 @@ -18,6 +18,7 @@ android/abi_gki_aarch64_generic android/abi_gki_aarch64_exynos android/abi_gki_aarch64_mtk android/abi_gki_aarch64_xiaomi +android/abi_gki_aarch64_fips140 " FILES="${FILES} From b4355a880a670a66d2f75c68f78d5526f3cc72a6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maciej=20=C5=BBenczykowski?= Date: Thu, 13 May 2021 15:08:38 -0700 Subject: [PATCH 186/196] ANDROID: start to re-add xt_IDLETIMER send_nl_msg support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This was reverted in ee6918c6f7ef8697012f8cc5bd77e8983ce313b5 due to conflicts with upstream, this first patch is just the minimum necessary to make the netfilter IDLETIMER target with --send_nl_msg load successfully: phone-5.10:/ # iptables-save | egrep IDLETIMER -A idletimer_raw_PREROUTING -i rmnet0 -j IDLETIMER --timeout 10 --label 0 --send_nl_msg -A idletimer_mangle_POSTROUTING -o rmnet0 -j IDLETIMER --timeout 10 --label 0 --send_nl_msg phone-5.10:/ # ip6tables-save | egrep IDLETIMER -A idletimer_raw_PREROUTING -i rmnet0 -j IDLETIMER --timeout 10 --label 0 --send_nl_msg -A idletimer_mangle_POSTROUTING -o rmnet0 -j IDLETIMER --timeout 10 --label 0 --send_nl_msg Test: builds, and kernel net tests passes, booted on phone, observed ip{,6}tables loading rules Bug: 183485987 Signed-off-by: Maciej Żenczykowski Change-Id: I1fe2c4e41a092cc82c3d6d49d1217798b2728bcb --- include/uapi/linux/netfilter/xt_IDLETIMER.h | 2 +- net/netfilter/xt_IDLETIMER.c | 8 +++++--- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/include/uapi/linux/netfilter/xt_IDLETIMER.h b/include/uapi/linux/netfilter/xt_IDLETIMER.h index 49ddcdc61c09..07ae4e189044 100644 --- a/include/uapi/linux/netfilter/xt_IDLETIMER.h +++ b/include/uapi/linux/netfilter/xt_IDLETIMER.h @@ -48,7 +48,7 @@ struct idletimer_tg_info_v1 { char label[MAX_IDLETIMER_LABEL_SIZE]; - __u8 send_nl_msg; /* unused: for compatibility with Android */ + __u8 send_nl_msg; __u8 timer_type; /* for kernel module internal use only */ diff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c index 7b2f359bfce4..c63edb18e79b 100644 --- a/net/netfilter/xt_IDLETIMER.c +++ b/net/netfilter/xt_IDLETIMER.c @@ -346,9 +346,6 @@ static int idletimer_tg_checkentry_v1(const struct xt_tgchk_param *par) pr_debug("checkentry targinfo%s\n", info->label); - if (info->send_nl_msg) - return -EOPNOTSUPP; - ret = idletimer_tg_helper((struct idletimer_tg_info *)info); if(ret < 0) { @@ -361,6 +358,11 @@ static int idletimer_tg_checkentry_v1(const struct xt_tgchk_param *par) return -EINVAL; } + if (info->send_nl_msg > 1) { + pr_debug("invalid value for send_nl_msg\n"); + return -EINVAL; + } + mutex_lock(&list_mutex); info->timer = __idletimer_tg_find_by_label(info->label); From 3871aa16fda772f9be298c8c6553f6e38be4ae5d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maciej=20=C5=BBenczykowski?= Date: Thu, 13 May 2021 15:32:18 -0700 Subject: [PATCH 187/196] ANDROID: core of xt_IDLETIMER send_nl_msg support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This was reverted in ee6918c6f7ef8697012f8cc5bd77e8983ce313b5 due to conflicts with upstream, and this attempts to reapply the majority of that change in an upstream compatible fashion. Test: builds, and kernel net tests passes, booted on phone, but no real testing Bug: 183485987 Signed-off-by: Maciej Żenczykowski Change-Id: I0fa1da3cb38d37c6888444dc36d49e6d1828a855 --- net/netfilter/xt_IDLETIMER.c | 291 ++++++++++++++++++++++++++++++++--- 1 file changed, 271 insertions(+), 20 deletions(-) diff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c index c63edb18e79b..3720825e5db4 100644 --- a/net/netfilter/xt_IDLETIMER.c +++ b/net/netfilter/xt_IDLETIMER.c @@ -28,6 +28,11 @@ #include #include #include +#include +#include +#include + +#define NLMSG_MAX_SIZE 64 struct idletimer_tg { struct list_head entry; @@ -38,15 +43,112 @@ struct idletimer_tg { struct kobject *kobj; struct device_attribute attr; + struct timespec64 delayed_timer_trigger; + struct timespec64 last_modified_timer; + struct timespec64 last_suspend_time; + struct notifier_block pm_nb; + + int timeout; unsigned int refcnt; u8 timer_type; + + bool work_pending; + bool send_nl_msg; + bool active; + uid_t uid; + bool suspend_time_valid; }; static LIST_HEAD(idletimer_tg_list); static DEFINE_MUTEX(list_mutex); +static DEFINE_SPINLOCK(timestamp_lock); static struct kobject *idletimer_tg_kobj; +static bool check_for_delayed_trigger(struct idletimer_tg *timer, + struct timespec64 *ts) +{ + bool state; + struct timespec64 temp; + spin_lock_bh(×tamp_lock); + timer->work_pending = false; + if ((ts->tv_sec - timer->last_modified_timer.tv_sec) > timer->timeout || + timer->delayed_timer_trigger.tv_sec != 0) { + state = false; + temp.tv_sec = timer->timeout; + temp.tv_nsec = 0; + if (timer->delayed_timer_trigger.tv_sec != 0) { + temp = timespec64_add(timer->delayed_timer_trigger, + temp); + ts->tv_sec = temp.tv_sec; + ts->tv_nsec = temp.tv_nsec; + timer->delayed_timer_trigger.tv_sec = 0; + timer->work_pending = true; + schedule_work(&timer->work); + } else { + temp = timespec64_add(timer->last_modified_timer, temp); + ts->tv_sec = temp.tv_sec; + ts->tv_nsec = temp.tv_nsec; + } + } else { + state = timer->active; + } + spin_unlock_bh(×tamp_lock); + return state; +} + +static void notify_netlink_uevent(const char *iface, struct idletimer_tg *timer) +{ + char iface_msg[NLMSG_MAX_SIZE]; + char state_msg[NLMSG_MAX_SIZE]; + char timestamp_msg[NLMSG_MAX_SIZE]; + char uid_msg[NLMSG_MAX_SIZE]; + char *envp[] = { iface_msg, state_msg, timestamp_msg, uid_msg, NULL }; + int res; + struct timespec64 ts; + u64 time_ns; + bool state; + + res = snprintf(iface_msg, NLMSG_MAX_SIZE, "INTERFACE=%s", + iface); + if (NLMSG_MAX_SIZE <= res) { + pr_err("message too long (%d)", res); + return; + } + + ts = ktime_to_timespec64(ktime_get_boottime()); + state = check_for_delayed_trigger(timer, &ts); + res = snprintf(state_msg, NLMSG_MAX_SIZE, "STATE=%s", + state ? "active" : "inactive"); + + if (NLMSG_MAX_SIZE <= res) { + pr_err("message too long (%d)", res); + return; + } + + if (state) { + res = snprintf(uid_msg, NLMSG_MAX_SIZE, "UID=%u", timer->uid); + if (NLMSG_MAX_SIZE <= res) + pr_err("message too long (%d)", res); + } else { + res = snprintf(uid_msg, NLMSG_MAX_SIZE, "UID="); + if (NLMSG_MAX_SIZE <= res) + pr_err("message too long (%d)", res); + } + + time_ns = timespec64_to_ns(&ts); + res = snprintf(timestamp_msg, NLMSG_MAX_SIZE, "TIME_NS=%llu", time_ns); + if (NLMSG_MAX_SIZE <= res) { + timestamp_msg[0] = '\0'; + pr_err("message too long (%d)", res); + } + + pr_debug("putting nlmsg: <%s> <%s> <%s> <%s>\n", iface_msg, state_msg, + timestamp_msg, uid_msg); + kobject_uevent_env(idletimer_tg_kobj, KOBJ_CHANGE, envp); + return; +} + static struct idletimer_tg *__idletimer_tg_find_by_label(const char *label) { @@ -67,6 +169,7 @@ static ssize_t idletimer_tg_show(struct device *dev, unsigned long expires = 0; struct timespec64 ktimespec = {}; long time_diff = 0; + unsigned long now = jiffies; mutex_lock(&list_mutex); @@ -78,16 +181,20 @@ static ssize_t idletimer_tg_show(struct device *dev, time_diff = ktimespec.tv_sec; } else { expires = timer->timer.expires; - time_diff = jiffies_to_msecs(expires - jiffies) / 1000; + time_diff = jiffies_to_msecs(expires - now) / 1000; } } mutex_unlock(&list_mutex); - if (time_after(expires, jiffies) || ktimespec.tv_sec > 0) - return snprintf(buf, PAGE_SIZE, "%ld\n", time_diff); + if (time_after(expires, now) || ktimespec.tv_sec > 0) + return scnprintf(buf, PAGE_SIZE, "%ld\n", time_diff); - return snprintf(buf, PAGE_SIZE, "0\n"); + if (timer->send_nl_msg) + return scnprintf(buf, PAGE_SIZE, "0 %d\n", + jiffies_to_msecs(now - expires) / 1000); + + return scnprintf(buf, PAGE_SIZE, "0\n"); } static void idletimer_tg_work(struct work_struct *work) @@ -96,6 +203,9 @@ static void idletimer_tg_work(struct work_struct *work) work); sysfs_notify(idletimer_tg_kobj, NULL, timer->attr.attr.name); + + if (timer->send_nl_msg) + notify_netlink_uevent(timer->attr.attr.name, timer); } static void idletimer_tg_expired(struct timer_list *t) @@ -104,7 +214,62 @@ static void idletimer_tg_expired(struct timer_list *t) pr_debug("timer %s expired\n", timer->attr.attr.name); + spin_lock_bh(×tamp_lock); + timer->active = false; + timer->work_pending = true; schedule_work(&timer->work); + spin_unlock_bh(×tamp_lock); +} + +static int idletimer_resume(struct notifier_block *notifier, + unsigned long pm_event, void *unused) +{ + struct timespec64 ts; + unsigned long time_diff, now = jiffies; + struct idletimer_tg *timer = container_of(notifier, + struct idletimer_tg, pm_nb); + if (!timer) + return NOTIFY_DONE; + + switch (pm_event) { + case PM_SUSPEND_PREPARE: + timer->last_suspend_time = + ktime_to_timespec64(ktime_get_boottime()); + timer->suspend_time_valid = true; + break; + case PM_POST_SUSPEND: + if (!timer->suspend_time_valid) + break; + timer->suspend_time_valid = false; + + spin_lock_bh(×tamp_lock); + if (!timer->active) { + spin_unlock_bh(×tamp_lock); + break; + } + /* since jiffies are not updated when suspended now represents + * the time it would have suspended */ + if (time_after(timer->timer.expires, now)) { + ts = ktime_to_timespec64(ktime_get_boottime()); + ts = timespec64_sub(ts, timer->last_suspend_time); + time_diff = timespec64_to_jiffies(&ts); + if (timer->timer.expires > (time_diff + now)) { + mod_timer_pending(&timer->timer, + (timer->timer.expires - time_diff)); + } else { + del_timer(&timer->timer); + timer->timer.expires = 0; + timer->active = false; + timer->work_pending = true; + schedule_work(&timer->work); + } + } + spin_unlock_bh(×tamp_lock); + break; + default: + break; + } + return NOTIFY_DONE; } static enum alarmtimer_restart idletimer_tg_alarmproc(struct alarm *alarm, @@ -137,7 +302,7 @@ static int idletimer_tg_create(struct idletimer_tg_info *info) { int ret; - info->timer = kmalloc(sizeof(*info->timer), GFP_KERNEL); + info->timer = kzalloc(sizeof(*info->timer), GFP_KERNEL); if (!info->timer) { ret = -ENOMEM; goto out; @@ -163,12 +328,29 @@ static int idletimer_tg_create(struct idletimer_tg_info *info) } list_add(&info->timer->entry, &idletimer_tg_list); - - timer_setup(&info->timer->timer, idletimer_tg_expired, 0); + pr_debug("timer type value is 0."); + info->timer->timer_type = 0; info->timer->refcnt = 1; + info->timer->send_nl_msg = false; + info->timer->active = true; + info->timer->timeout = info->timeout; + + info->timer->delayed_timer_trigger.tv_sec = 0; + info->timer->delayed_timer_trigger.tv_nsec = 0; + info->timer->work_pending = false; + info->timer->uid = 0; + info->timer->last_modified_timer = + ktime_to_timespec64(ktime_get_boottime()); + + info->timer->pm_nb.notifier_call = idletimer_resume; + ret = register_pm_notifier(&info->timer->pm_nb); + if (ret) + printk(KERN_WARNING "[%s] Failed to register pm notifier %d\n", + __func__, ret); INIT_WORK(&info->timer->work, idletimer_tg_work); + timer_setup(&info->timer->timer, idletimer_tg_expired, 0); mod_timer(&info->timer->timer, msecs_to_jiffies(info->timeout * 1000) + jiffies); @@ -186,7 +368,7 @@ static int idletimer_tg_create_v1(struct idletimer_tg_info_v1 *info) { int ret; - info->timer = kmalloc(sizeof(*info->timer), GFP_KERNEL); + info->timer = kzalloc(sizeof(*info->timer), GFP_KERNEL); if (!info->timer) { ret = -ENOMEM; goto out; @@ -218,6 +400,22 @@ static int idletimer_tg_create_v1(struct idletimer_tg_info_v1 *info) pr_debug("timer type value is %u", info->timer_type); info->timer->timer_type = info->timer_type; info->timer->refcnt = 1; + info->timer->send_nl_msg = (info->send_nl_msg != 0); + info->timer->active = true; + info->timer->timeout = info->timeout; + + info->timer->delayed_timer_trigger.tv_sec = 0; + info->timer->delayed_timer_trigger.tv_nsec = 0; + info->timer->work_pending = false; + info->timer->uid = 0; + info->timer->last_modified_timer = + ktime_to_timespec64(ktime_get_boottime()); + + info->timer->pm_nb.notifier_call = idletimer_resume; + ret = register_pm_notifier(&info->timer->pm_nb); + if (ret) + printk(KERN_WARNING "[%s] Failed to register pm notifier %d\n", + __func__, ret); INIT_WORK(&info->timer->work, idletimer_tg_work); @@ -231,7 +429,7 @@ static int idletimer_tg_create_v1(struct idletimer_tg_info_v1 *info) } else { timer_setup(&info->timer->timer, idletimer_tg_expired, 0); mod_timer(&info->timer->timer, - msecs_to_jiffies(info->timeout * 1000) + jiffies); + msecs_to_jiffies(info->timeout * 1000) + jiffies); } return 0; @@ -244,6 +442,41 @@ out: return ret; } +static void reset_timer(struct idletimer_tg * const info_timer, + const __u32 info_timeout, + struct sk_buff *skb) +{ + unsigned long now = jiffies; + bool timer_prev; + + spin_lock_bh(×tamp_lock); + timer_prev = info_timer->active; + info_timer->active = true; + /* timer_prev is used to guard overflow problem in time_before*/ + if (!timer_prev || time_before(info_timer->timer.expires, now)) { + pr_debug("Starting Checkentry timer (Expired, Jiffies): %lu, %lu\n", + info_timer->timer.expires, now); + + /* Stores the uid resposible for waking up the radio */ + if (skb && (skb->sk)) { + info_timer->uid = from_kuid_munged(current_user_ns(), + sock_i_uid(skb_to_full_sk(skb))); + } + + /* checks if there is a pending inactive notification*/ + if (info_timer->work_pending) + info_timer->delayed_timer_trigger = info_timer->last_modified_timer; + else { + info_timer->work_pending = true; + schedule_work(&info_timer->work); + } + } + + info_timer->last_modified_timer = ktime_to_timespec64(ktime_get_boottime()); + mod_timer(&info_timer->timer, msecs_to_jiffies(info_timeout * 1000) + now); + spin_unlock_bh(×tamp_lock); +} + /* * The actual xt_tables plugin. */ @@ -251,12 +484,21 @@ static unsigned int idletimer_tg_target(struct sk_buff *skb, const struct xt_action_param *par) { const struct idletimer_tg_info *info = par->targinfo; + unsigned long now = jiffies; pr_debug("resetting timer %s, timeout period %u\n", info->label, info->timeout); - mod_timer(&info->timer->timer, - msecs_to_jiffies(info->timeout * 1000) + jiffies); + info->timer->active = true; + + if (time_before(info->timer->timer.expires, now)) { + schedule_work(&info->timer->work); + pr_debug("Starting timer %s (Expired, Jiffies): %lu, %lu\n", + info->label, info->timer->timer.expires, now); + } + + /* TODO: Avoid modifying timers on each packet */ + reset_timer(info->timer, info->timeout, skb); return XT_CONTINUE; } @@ -268,6 +510,7 @@ static unsigned int idletimer_tg_target_v1(struct sk_buff *skb, const struct xt_action_param *par) { const struct idletimer_tg_info_v1 *info = par->targinfo; + unsigned long now = jiffies; pr_debug("resetting timer %s, timeout period %u\n", info->label, info->timeout); @@ -276,8 +519,16 @@ static unsigned int idletimer_tg_target_v1(struct sk_buff *skb, ktime_t tout = ktime_set(info->timeout, 0); alarm_start_relative(&info->timer->alarm, tout); } else { - mod_timer(&info->timer->timer, - msecs_to_jiffies(info->timeout * 1000) + jiffies); + info->timer->active = true; + + if (time_before(info->timer->timer.expires, now)) { + schedule_work(&info->timer->work); + pr_debug("Starting timer %s (Expired, Jiffies): %lu, %lu\n", + info->label, info->timer->timer.expires, now); + } + + /* TODO: Avoid modifying timers on each packet */ + reset_timer(info->timer, info->timeout, skb); } return XT_CONTINUE; @@ -321,9 +572,7 @@ static int idletimer_tg_checkentry(const struct xt_tgchk_param *par) info->timer = __idletimer_tg_find_by_label(info->label); if (info->timer) { info->timer->refcnt++; - mod_timer(&info->timer->timer, - msecs_to_jiffies(info->timeout * 1000) + jiffies); - + reset_timer(info->timer, info->timeout, NULL); pr_debug("increased refcnt of timer %s to %u\n", info->label, info->timer->refcnt); } else { @@ -385,8 +634,7 @@ static int idletimer_tg_checkentry_v1(const struct xt_tgchk_param *par) alarm_start_relative(&info->timer->alarm, tout); } } else { - mod_timer(&info->timer->timer, - msecs_to_jiffies(info->timeout * 1000) + jiffies); + reset_timer(info->timer, info->timeout, NULL); } pr_debug("increased refcnt of timer %s to %u\n", info->label, info->timer->refcnt); @@ -416,8 +664,9 @@ static void idletimer_tg_destroy(const struct xt_tgdtor_param *par) list_del(&info->timer->entry); del_timer_sync(&info->timer->timer); - cancel_work_sync(&info->timer->work); sysfs_remove_file(idletimer_tg_kobj, &info->timer->attr.attr); + unregister_pm_notifier(&info->timer->pm_nb); + cancel_work_sync(&info->timer->work); kfree(info->timer->attr.attr.name); kfree(info->timer); } else { @@ -445,8 +694,9 @@ static void idletimer_tg_destroy_v1(const struct xt_tgdtor_param *par) } else { del_timer_sync(&info->timer->timer); } - cancel_work_sync(&info->timer->work); sysfs_remove_file(idletimer_tg_kobj, &info->timer->attr.attr); + unregister_pm_notifier(&info->timer->pm_nb); + cancel_work_sync(&info->timer->work); kfree(info->timer->attr.attr.name); kfree(info->timer); } else { @@ -542,3 +792,4 @@ MODULE_DESCRIPTION("Xtables: idle time monitor"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("ipt_IDLETIMER"); MODULE_ALIAS("ip6t_IDLETIMER"); +MODULE_ALIAS("arpt_IDLETIMER"); From b9ae3287e3190debceeca51919492b37a07be79e Mon Sep 17 00:00:00 2001 From: Matthias Maennich Date: Fri, 11 Jun 2021 14:31:48 +0100 Subject: [PATCH 188/196] ANDROID: Fips 140: move fips symbols entirely in own list Since the fips140 module is not built during the regular GKI kernel build, it will also not be participating in the symbol list generation. Yet the symbols were added as if it were built. Fix that by moving the symbols over to the module specific list for now. Also, update the symbol list that is updated when using BUILD_CONFIG=common/build.config.gki.aarch64.fips140 build/build_abi.sh --update-symbol-list Fixes: a11dacedd687 ("ANDROID: add fips140.ko symbols to module ABI") Change-Id: I35730ab72941576d8da699d82b265b2ed1ae6b2b Signed-off-by: Matthias Maennich --- android/abi_gki_aarch64 | 124 ------------------------------- android/abi_gki_aarch64_fips140 | 124 +++++++++++++++++++++++++++++++ build.config.gki.aarch64.fips140 | 2 +- 3 files changed, 125 insertions(+), 125 deletions(-) diff --git a/android/abi_gki_aarch64 b/android/abi_gki_aarch64 index 61f478444272..57914f291962 100644 --- a/android/abi_gki_aarch64 +++ b/android/abi_gki_aarch64 @@ -2,127 +2,3 @@ # commonly used symbols module_layout __put_task_struct - -# required by fips140.ko - add_random_ready_callback - aead_register_instance - bcmp - cancel_work_sync - __cfi_slowpath - cpu_have_feature - crypto_aead_decrypt - crypto_aead_encrypt - crypto_aead_setauthsize - crypto_aead_setkey - crypto_ahash_finup - crypto_ahash_setkey - crypto_alg_list - crypto_alg_mod_lookup - crypto_alg_sem - crypto_alloc_base - crypto_alloc_rng - crypto_alloc_shash - crypto_attr_alg_name - crypto_check_attr_type - crypto_cipher_encrypt_one - crypto_cipher_setkey - crypto_destroy_tfm - crypto_drop_spawn - crypto_get_default_null_skcipher - crypto_grab_aead - crypto_grab_ahash - crypto_grab_shash - crypto_grab_skcipher - crypto_inst_setname - crypto_put_default_null_skcipher - crypto_register_aead - crypto_register_alg - crypto_register_rngs - crypto_register_shash - crypto_register_shashes - crypto_register_skciphers - crypto_register_template - crypto_register_templates - crypto_remove_final - crypto_remove_spawns - crypto_req_done - crypto_shash_alg_has_setkey - crypto_shash_digest - crypto_shash_final - crypto_shash_finup - crypto_shash_setkey - crypto_shash_tfm_digest - crypto_shash_update - crypto_skcipher_decrypt - crypto_skcipher_encrypt - crypto_skcipher_setkey - crypto_spawn_tfm2 - crypto_unregister_aead - crypto_unregister_alg - crypto_unregister_rngs - crypto_unregister_shash - crypto_unregister_shashes - crypto_unregister_skciphers - crypto_unregister_template - crypto_unregister_templates - del_random_ready_callback - down_write - fpsimd_context_busy - get_random_bytes - __init_swait_queue_head - irq_stat - kasan_flag_enabled - kernel_neon_begin - kernel_neon_end - kfree - kfree_sensitive - __kmalloc - kmalloc_caches - kmalloc_order_trace - kmem_cache_alloc_trace - __list_add_valid - __list_del_entry_valid - memcpy - memset - __mutex_init - mutex_lock - mutex_unlock - panic - preempt_schedule - preempt_schedule_notrace - printk - queue_work_on - scatterwalk_ffwd - scatterwalk_map_and_copy - sg_init_one - sg_init_table - sg_next - shash_free_singlespawn_instance - shash_register_instance - skcipher_alloc_instance_simple - skcipher_register_instance - skcipher_walk_aead_decrypt - skcipher_walk_aead_encrypt - skcipher_walk_done - skcipher_walk_virt - snprintf - __stack_chk_fail - __stack_chk_guard - strcmp - strlcat - strlcpy - strlen - strncmp - synchronize_rcu_tasks - system_wq - __traceiter_android_vh_aes_decrypt - __traceiter_android_vh_aes_encrypt - __traceiter_android_vh_aes_expandkey - __traceiter_android_vh_sha256 - __tracepoint_android_vh_aes_decrypt - __tracepoint_android_vh_aes_encrypt - __tracepoint_android_vh_aes_expandkey - __tracepoint_android_vh_sha256 - tracepoint_probe_register - up_write - wait_for_completion diff --git a/android/abi_gki_aarch64_fips140 b/android/abi_gki_aarch64_fips140 index e27e5251d604..05df3848ff15 100644 --- a/android/abi_gki_aarch64_fips140 +++ b/android/abi_gki_aarch64_fips140 @@ -1,5 +1,129 @@ [abi_symbol_list] +# required by fips140.ko + add_random_ready_callback + aead_register_instance + bcmp + cancel_work_sync + __cfi_slowpath + cpu_have_feature + crypto_aead_decrypt + crypto_aead_encrypt + crypto_aead_setauthsize + crypto_aead_setkey + crypto_ahash_finup + crypto_ahash_setkey + crypto_alg_list + crypto_alg_mod_lookup + crypto_alg_sem + crypto_alloc_base + crypto_alloc_rng + crypto_alloc_shash + crypto_attr_alg_name + crypto_check_attr_type + crypto_cipher_encrypt_one + crypto_cipher_setkey + crypto_destroy_tfm + crypto_drop_spawn + crypto_get_default_null_skcipher + crypto_grab_aead + crypto_grab_ahash + crypto_grab_shash + crypto_grab_skcipher + crypto_inst_setname + crypto_put_default_null_skcipher + crypto_register_aead + crypto_register_alg + crypto_register_rngs + crypto_register_shash + crypto_register_shashes + crypto_register_skciphers + crypto_register_template + crypto_register_templates + crypto_remove_final + crypto_remove_spawns + crypto_req_done + crypto_shash_alg_has_setkey + crypto_shash_digest + crypto_shash_final + crypto_shash_finup + crypto_shash_setkey + crypto_shash_tfm_digest + crypto_shash_update + crypto_skcipher_decrypt + crypto_skcipher_encrypt + crypto_skcipher_setkey + crypto_spawn_tfm2 + crypto_unregister_aead + crypto_unregister_alg + crypto_unregister_rngs + crypto_unregister_shash + crypto_unregister_shashes + crypto_unregister_skciphers + crypto_unregister_template + crypto_unregister_templates + del_random_ready_callback + down_write + fpsimd_context_busy + get_random_bytes + __init_swait_queue_head + irq_stat + kasan_flag_enabled + kernel_neon_begin + kernel_neon_end + kfree + kfree_sensitive + __kmalloc + kmalloc_caches + kmalloc_order_trace + kmem_cache_alloc_trace + __list_add_valid + __list_del_entry_valid + memcpy + memset + __mutex_init + mutex_lock + mutex_unlock + panic + preempt_schedule + preempt_schedule_notrace + printk + queue_work_on + scatterwalk_ffwd + scatterwalk_map_and_copy + sg_init_one + sg_init_table + sg_next + shash_free_singlespawn_instance + shash_register_instance + skcipher_alloc_instance_simple + skcipher_register_instance + skcipher_walk_aead_decrypt + skcipher_walk_aead_encrypt + skcipher_walk_done + skcipher_walk_virt + snprintf + __stack_chk_fail + __stack_chk_guard + strcmp + strlcat + strlcpy + strlen + strncmp + synchronize_rcu_tasks + system_wq + __traceiter_android_vh_aes_decrypt + __traceiter_android_vh_aes_encrypt + __traceiter_android_vh_aes_expandkey + __traceiter_android_vh_sha256 + __tracepoint_android_vh_aes_decrypt + __tracepoint_android_vh_aes_encrypt + __tracepoint_android_vh_aes_expandkey + __tracepoint_android_vh_sha256 + tracepoint_probe_register + up_write + wait_for_completion + # needed by fips140.ko but not identified by the tooling # TODO(b/189327973): [GKI: ABI] Build of fips140.ko module fails to identify some symbols __crypto_memneq diff --git a/build.config.gki.aarch64.fips140 b/build.config.gki.aarch64.fips140 index 040d73af3d2a..a1a75a8dbeee 100644 --- a/build.config.gki.aarch64.fips140 +++ b/build.config.gki.aarch64.fips140 @@ -10,8 +10,8 @@ if [ "${LTO}" = "none" ]; then fi MODULES_ORDER=android/gki_aarch64_fips140_modules -KERNEL_DIR=common DEFCONFIG=fips140_gki_defconfig +KMI_SYMBOL_LIST=android/abi_gki_aarch64_fips140 PRE_DEFCONFIG_CMDS="cat ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/gki_defconfig ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/fips140_gki.fragment > ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/${DEFCONFIG};" POST_DEFCONFIG_CMDS="rm ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/${DEFCONFIG}" From 1ac622485e4c1b6a2bb21d6f2841b1a308f9eb1d Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 10 Jun 2021 21:19:15 +0200 Subject: [PATCH 189/196] Revert "net: usb: cdc_ncm: don't spew notifications" This reverts commit de658a195ee23ca6aaffe197d1d2ea040beea0a2 as it breaks the abi at the moment. We will bring it back in a bit, when the next kabi break happens. Signed-off-by: Greg Kroah-Hartman Change-Id: I2bfa5e180f377af552230ff170ea0a45fef1347e --- drivers/net/usb/cdc_ncm.c | 12 +----------- include/linux/usb/usbnet.h | 2 -- 2 files changed, 1 insertion(+), 13 deletions(-) diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 1d3bf810f2ca..854c6624e685 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -1827,15 +1827,6 @@ cdc_ncm_speed_change(struct usbnet *dev, uint32_t rx_speed = le32_to_cpu(data->DLBitRRate); uint32_t tx_speed = le32_to_cpu(data->ULBitRate); - /* if the speed hasn't changed, don't report it. - * RTL8156 shipped before 2021 sends notification about every 32ms. - */ - if (dev->rx_speed == rx_speed && dev->tx_speed == tx_speed) - return; - - dev->rx_speed = rx_speed; - dev->tx_speed = tx_speed; - /* * Currently the USB-NET API does not support reporting the actual * device speed. Do print it instead. @@ -1876,8 +1867,7 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb) * USB_CDC_NOTIFY_NETWORK_CONNECTION notification shall be * sent by device after USB_CDC_NOTIFY_SPEED_CHANGE. */ - if (netif_carrier_ok(dev->net) != !!event->wValue) - usbnet_link_change(dev, !!event->wValue, 0); + usbnet_link_change(dev, !!event->wValue, 0); break; case USB_CDC_NOTIFY_SPEED_CHANGE: diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h index 8110c29fab42..2e4f7721fc4e 100644 --- a/include/linux/usb/usbnet.h +++ b/include/linux/usb/usbnet.h @@ -83,8 +83,6 @@ struct usbnet { # define EVENT_LINK_CHANGE 11 # define EVENT_SET_RX_MODE 12 # define EVENT_NO_IP_ALIGN 13 - u32 rx_speed; /* in bps - NOT Mbps */ - u32 tx_speed; /* in bps - NOT Mbps */ }; static inline struct usb_driver *driver_of(struct usb_interface *intf) From 0451e8af91bc814040837d566778a534cb8824f0 Mon Sep 17 00:00:00 2001 From: Rick Yiu Date: Sat, 12 Jun 2021 11:31:08 +0800 Subject: [PATCH 190/196] ANDROID: Update ABI and symbol list Leaf changes summary: 2 artifacts changed (1 filtered out) Changed leaf types summary: 0 (1 filtered out) leaf type changed Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 1 Added variable 1 Added function: [A] 'function int __traceiter_android_vh_finish_update_load_avg_se(void*, sched_entity*, int)' 1 Added variable: [A] 'tracepoint __tracepoint_android_vh_finish_update_load_avg_se' Bug: 187146897 Signed-off-by: Rick Yiu Change-Id: I0ab28eeeae64fb07d663191b68d7a84550887888 --- android/abi_gki_aarch64.xml | 137097 ++++++++++++++--------------- android/abi_gki_aarch64_generic | 5 + 2 files changed, 66907 insertions(+), 70195 deletions(-) diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml index 49b6d8605f9c..cf87ad21f7e6 100644 --- a/android/abi_gki_aarch64.xml +++ b/android/abi_gki_aarch64.xml @@ -315,6 +315,7 @@ + @@ -4761,6 +4762,7 @@ + @@ -5018,8 +5020,8 @@ - - + + @@ -5027,141 +5029,107 @@ - - - - - - - - - - - - - - - - - - - - - - - - + + + + + + + + + + + + + + - + + + + + + + + + + + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + - - - - - - - - + + + + + + + + + - + - + - - - - - - + + + + + + + - + - + + + + - - - - + + - + + + + + + + + - + - + + + + + + + + + - - - - - - - - - - - - + + + + @@ -5380,53 +5348,19 @@ - - - - - - - - + - + - + - - - - - - - - - - - - - - - - - - - - - - - - - - - - + @@ -5534,9 +5468,6 @@ - - - @@ -5547,17 +5478,13 @@ - - - - - + @@ -5602,17 +5529,6 @@ - - - - - - - - - - - @@ -5752,18 +5668,12 @@ - - - - - - - + @@ -5776,10 +5686,6 @@ - - - - @@ -5965,7 +5871,6 @@ - @@ -5973,11 +5878,10 @@ - - + @@ -6206,7 +6110,7 @@ - + @@ -6230,8 +6134,8 @@ - + @@ -6244,7 +6148,7 @@ - + @@ -6321,6 +6225,11 @@ + + + + + @@ -6388,14 +6297,6 @@ - - - - - - - - @@ -6475,7 +6376,7 @@ - + @@ -6715,20 +6616,6 @@ - - - - - - - - - - - - - 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+ + + + + + + + + + + + + + + + @@ -195573,6 +192280,18 @@ + + + + + + + + + + + + @@ -195661,44 +192380,9 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + + @@ -195706,14 +192390,54 @@ + + + + + + + + + + + + + + + + + + + + + + + + + - - - + + + + + + + + + + + + + + + + + + @@ -195721,14 +192445,14 @@ - - - - + + + + - - - + + + @@ -195738,23 +192462,20 @@ - - - - - - - - - - - - - + + + + + + + + + + @@ -195763,8 +192484,6 @@ - - @@ -195773,18 +192492,6 @@ - - - - - - - - - - - - diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic index 3013aaac6b71..b040326ef571 100644 --- a/android/abi_gki_aarch64_generic +++ b/android/abi_gki_aarch64_generic @@ -726,6 +726,7 @@ extcon_set_property extcon_set_property_capability extcon_set_state_sync + extcon_unregister_notifier failure_tracking fasync_helper __fdget @@ -1836,6 +1837,7 @@ trace_handle_return __traceiter_android_rvh_cgroup_force_kthread_migration __traceiter_android_rvh_check_preempt_wakeup + __traceiter_android_rvh_cpu_cgroup_online __traceiter_android_rvh_cpu_overutilized __traceiter_android_rvh_dequeue_task __traceiter_android_rvh_find_energy_efficient_cpu @@ -1857,6 +1859,7 @@ __traceiter_android_vh_cpu_idle_exit __traceiter_android_vh_enable_thermal_genl_check __traceiter_android_vh_ep_create_wakeup_source + __traceiter_android_vh_finish_update_load_avg_se __traceiter_android_vh_ipi_stop __traceiter_android_vh_meminfo_proc_show __traceiter_android_vh_of_i2c_get_board_info @@ -1901,6 +1904,7 @@ trace_output_call __tracepoint_android_rvh_cgroup_force_kthread_migration __tracepoint_android_rvh_check_preempt_wakeup + __tracepoint_android_rvh_cpu_cgroup_online __tracepoint_android_rvh_cpu_overutilized __tracepoint_android_rvh_dequeue_task __tracepoint_android_rvh_find_energy_efficient_cpu @@ -1922,6 +1926,7 @@ __tracepoint_android_vh_cpu_idle_exit __tracepoint_android_vh_enable_thermal_genl_check __tracepoint_android_vh_ep_create_wakeup_source + __tracepoint_android_vh_finish_update_load_avg_se __tracepoint_android_vh_ipi_stop __tracepoint_android_vh_meminfo_proc_show __tracepoint_android_vh_of_i2c_get_board_info From 79258e28eb65be1b65422f0bd629acd169bda4f5 Mon Sep 17 00:00:00 2001 From: Lecopzer Chen Date: Wed, 2 Jun 2021 17:49:58 +0800 Subject: [PATCH 191/196] FROMLIST: media: Kconfig: Fix DVB_CORE can't be selected as module The DVB_CORE now depends on MEDIA_DIGITAL_TV_SUPPORT and default MEDIA_DIGITAL_TV_SUPPORT, and this makes it can never be =m since the type of MEDIA_DIGITAL_TV_SUPPORT is bool. Change MEDIA_DIGITAL_TV_SUPPORT to tristate so it's possible to set DVB_CORE as =m. Link: https://lore.kernel.org/lkml/20210608101451.9301-1-lecopzer.chen@mediatek.com/ Bug: 189516917 Signed-off-by: Lecopzer Chen Change-Id: I3e62e9f6b0e3e42b3ce8b7d179266700bb25e6a0 --- drivers/media/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig index 5d93e5773e47..118e7ddbfd8b 100644 --- a/drivers/media/Kconfig +++ b/drivers/media/Kconfig @@ -87,7 +87,7 @@ config MEDIA_ANALOG_TV_SUPPORT will disable support for them. config MEDIA_DIGITAL_TV_SUPPORT - bool "Digital TV" + tristate "Digital TV" default y if !MEDIA_SUPPORT_FILTER help Enable digital TV support. From 79f44ef795b53207d9b368728a66c45259bb159a Mon Sep 17 00:00:00 2001 From: Chanho Park Date: Tue, 8 Jun 2021 22:53:40 +0900 Subject: [PATCH 192/196] ANDROID: GKI: Kconfig.gki: Add GKI_HIDDEN_ETHERNET_CONFIGS Add a hidden config option to select PHYLINK which is widely used by ethernet devices. This also removes PHYLIB=y from gki_defconfig because it is selected by CONFIG_PHYLINK. Bug: 190472243 Signed-off-by: Chanho Park Change-Id: I590f7576daddab6786d19ffc789e51816770e5e3 --- arch/arm64/configs/gki_defconfig | 1 - arch/x86/configs/gki_defconfig | 1 - init/Kconfig.gki | 8 ++++++++ 3 files changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig index 69a9e94cf848..5cc540459747 100644 --- a/arch/arm64/configs/gki_defconfig +++ b/arch/arm64/configs/gki_defconfig @@ -314,7 +314,6 @@ CONFIG_WIREGUARD=y CONFIG_IFB=y CONFIG_TUN=y CONFIG_VETH=y -CONFIG_PHYLIB=y CONFIG_PPP=y CONFIG_PPP_BSDCOMP=y CONFIG_PPP_DEFLATE=y diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig index 273ce86af4c0..86d593abaf29 100644 --- a/arch/x86/configs/gki_defconfig +++ b/arch/x86/configs/gki_defconfig @@ -287,7 +287,6 @@ CONFIG_WIREGUARD=y CONFIG_IFB=y CONFIG_TUN=y CONFIG_VETH=y -CONFIG_PHYLIB=y CONFIG_PPP=y CONFIG_PPP_BSDCOMP=y CONFIG_PPP_DEFLATE=y diff --git a/init/Kconfig.gki b/init/Kconfig.gki index b07db9ed4bdb..1a4fde6a8e62 100644 --- a/init/Kconfig.gki +++ b/init/Kconfig.gki @@ -219,6 +219,13 @@ config GKI_HIDDEN_DMA_CONFIGS Dummy config option used to enable the hidden DMA configs, required by various SoC platforms. +config GKI_HIDDEN_ETHERNET_CONFIGS + bool "Hidden Ethernet configuration needed for GKI" + select PHYLINK + help + Dummy config option used to enable the hidden Ethernet PHYLINK + configs, required by various ethernet devices. + # Atrocities needed for # a) building GKI modules in separate tree, or # b) building drivers that are not modularizable @@ -249,6 +256,7 @@ config GKI_HACKS_TO_FIX select GKI_HIDDEN_PHY_CONFIGS select GKI_HIDDEN_MM_CONFIGS select GKI_HIDDEN_DMA_CONFIGS + select GKI_HIDDEN_ETHERNET_CONFIGS help Dummy config option used to enable core functionality used by modules that may not be selectable in this config. From 45d0c6c5aa59941883c1a0485f06bc1b86bfda98 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maciej=20=C5=BBenczykowski?= Date: Mon, 14 Jun 2021 11:58:03 -0700 Subject: [PATCH 193/196] ANDROID: gki - CONFIG_NET_SCH_FQ=y MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It was an oversight to previously enable codel / fq_codel without enabling fq itself. Our TCP/BBR team thinks this might be more useful. Test: built and booted on a gki using phone Bug: 124467469 Signed-off-by: Maciej Żenczykowski Change-Id: Ic02c12a3f44bd3526abe06e981b8067e78f0cc75 --- arch/arm64/configs/gki_defconfig | 1 + arch/x86/configs/gki_defconfig | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig index 5cc540459747..2289194dae73 100644 --- a/arch/arm64/configs/gki_defconfig +++ b/arch/arm64/configs/gki_defconfig @@ -233,6 +233,7 @@ CONFIG_NET_SCH_TBF=y CONFIG_NET_SCH_NETEM=y CONFIG_NET_SCH_CODEL=y CONFIG_NET_SCH_FQ_CODEL=y +CONFIG_NET_SCH_FQ=y CONFIG_NET_SCH_INGRESS=y CONFIG_NET_CLS_BASIC=y CONFIG_NET_CLS_TCINDEX=y diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig index 86d593abaf29..70f2af205cbf 100644 --- a/arch/x86/configs/gki_defconfig +++ b/arch/x86/configs/gki_defconfig @@ -210,6 +210,7 @@ CONFIG_NET_SCH_TBF=y CONFIG_NET_SCH_NETEM=y CONFIG_NET_SCH_CODEL=y CONFIG_NET_SCH_FQ_CODEL=y +CONFIG_NET_SCH_FQ=y CONFIG_NET_SCH_INGRESS=y CONFIG_NET_CLS_BASIC=y CONFIG_NET_CLS_TCINDEX=y From 54e7412d4ff9af8fc9d2b5c792e0ff6e39dcc045 Mon Sep 17 00:00:00 2001 From: Faiyaz Mohammed Date: Tue, 15 Jun 2021 09:19:37 +0530 Subject: [PATCH 194/196] FROMGIT: mm: slub: move sysfs slab alloc/free interfaces to debugfs alloc_calls and free_calls implementation in sysfs have two issues, one is PAGE_SIZE limitation of sysfs and other is it does not adhere to "one value per file" rule. To overcome this issues, move the alloc_calls and free_calls implementation to debugfs. Debugfs cache will be created if SLAB_STORE_USER flag is set. Rename the alloc_calls/free_calls to alloc_traces/free_traces, to be inline with what it does. Link: https://lkml.kernel.org/r/1623438200-19361-1-git-send-email-faiyazm@codeaurora.org Signed-off-by: Faiyaz Mohammed Reviewed-by: Vlastimil Babka Reviewed-by: Greg Kroah-Hartman Cc: Christoph Lameter Cc: Pekka Enberg Cc: David Rientjes Cc: Joonsoo Kim Signed-off-by: Andrew Morton Signed-off-by: Stephen Rothwell BUG: 176858818 (cherry picked from commit d48f3da28a5b4c63bb76a2b4dea983aee38d9d2e https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit?h=next-20210615&id=d48f3da28a5b4c63bb76a2b4dea983aee38d9d2e) Change-Id: I5426e48b13fe9944b9d4666e3cd9f2a7a4896018 Signed-off-by: Faiyaz Mohammed --- mm/slab.h | 6 + mm/slab_common.c | 2 + mm/slub.c | 288 +++++++++++++++++++++++++++++++---------------- 3 files changed, 198 insertions(+), 98 deletions(-) diff --git a/mm/slab.h b/mm/slab.h index 2564dd93718d..29300d7f042e 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -681,4 +681,10 @@ static inline bool slab_want_init_on_free(struct kmem_cache *c) return false; } +#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_SLUB_DEBUG) +void debugfs_slab_release(struct kmem_cache *); +#else +static inline void debugfs_slab_release(struct kmem_cache *s) { } +#endif + #endif /* MM_SLAB_H */ diff --git a/mm/slab_common.c b/mm/slab_common.c index 5e5a7320678e..29c857c78465 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -438,6 +438,7 @@ static void slab_caches_to_rcu_destroy_workfn(struct work_struct *work) rcu_barrier(); list_for_each_entry_safe(s, s2, &to_destroy, list) { + debugfs_slab_release(s); kfence_shutdown_cache(s); #ifdef SLAB_SUPPORTS_SYSFS sysfs_slab_release(s); @@ -465,6 +466,7 @@ static int shutdown_cache(struct kmem_cache *s) schedule_work(&slab_caches_to_rcu_destroy_work); } else { kfence_shutdown_cache(s); + debugfs_slab_release(s); #ifdef SLAB_SUPPORTS_SYSFS sysfs_slab_unlink(s); sysfs_slab_release(s); diff --git a/mm/slub.c b/mm/slub.c index 3b1a50ae8273..478da8d2f27a 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -36,6 +36,7 @@ #include #include +#include #include #include @@ -210,6 +211,12 @@ static inline int sysfs_slab_alias(struct kmem_cache *s, const char *p) { return 0; } #endif +#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_SLUB_DEBUG) +static void debugfs_slab_add(struct kmem_cache *); +#else +static inline void debugfs_slab_add(struct kmem_cache *s) { } +#endif + static inline void stat(const struct kmem_cache *s, enum stat_item si) { #ifdef CONFIG_SLUB_STATS @@ -4497,6 +4504,9 @@ int __kmem_cache_create(struct kmem_cache *s, slab_flags_t flags) if (err) __kmem_cache_release(s); + if (s->flags & SLAB_STORE_USER) + debugfs_slab_add(s); + return err; } @@ -4637,6 +4647,8 @@ static long validate_slab_cache(struct kmem_cache *s) return count; } + +#ifdef CONFIG_DEBUG_FS /* * Generate lists of code addresses where slabcache objects are allocated * and freed. @@ -4660,6 +4672,8 @@ struct loc_track { struct location *loc; }; +static struct dentry *slab_debugfs_root; + static void free_loc_track(struct loc_track *t) { if (t->max) @@ -4776,87 +4790,7 @@ static void process_slab(struct loc_track *t, struct kmem_cache *s, add_location(t, s, get_track(s, p, alloc)); put_map(map); } - -static int list_locations(struct kmem_cache *s, char *buf, - enum track_item alloc) -{ - int len = 0; - unsigned long i; - struct loc_track t = { 0, 0, NULL }; - int node; - struct kmem_cache_node *n; - - if (!alloc_loc_track(&t, PAGE_SIZE / sizeof(struct location), - GFP_KERNEL)) { - return sprintf(buf, "Out of memory\n"); - } - /* Push back cpu slabs */ - flush_all(s); - - for_each_kmem_cache_node(s, node, n) { - unsigned long flags; - struct page *page; - - if (!atomic_long_read(&n->nr_slabs)) - continue; - - spin_lock_irqsave(&n->list_lock, flags); - list_for_each_entry(page, &n->partial, slab_list) - process_slab(&t, s, page, alloc); - list_for_each_entry(page, &n->full, slab_list) - process_slab(&t, s, page, alloc); - spin_unlock_irqrestore(&n->list_lock, flags); - } - - for (i = 0; i < t.count; i++) { - struct location *l = &t.loc[i]; - - if (len > PAGE_SIZE - KSYM_SYMBOL_LEN - 100) - break; - len += sprintf(buf + len, "%7ld ", l->count); - - if (l->addr) - len += sprintf(buf + len, "%pS", (void *)l->addr); - else - len += sprintf(buf + len, ""); - - if (l->sum_time != l->min_time) { - len += sprintf(buf + len, " age=%ld/%ld/%ld", - l->min_time, - (long)div_u64(l->sum_time, l->count), - l->max_time); - } else - len += sprintf(buf + len, " age=%ld", - l->min_time); - - if (l->min_pid != l->max_pid) - len += sprintf(buf + len, " pid=%ld-%ld", - l->min_pid, l->max_pid); - else - len += sprintf(buf + len, " pid=%ld", - l->min_pid); - - if (num_online_cpus() > 1 && - !cpumask_empty(to_cpumask(l->cpus)) && - len < PAGE_SIZE - 60) - len += scnprintf(buf + len, PAGE_SIZE - len - 50, - " cpus=%*pbl", - cpumask_pr_args(to_cpumask(l->cpus))); - - if (nr_online_nodes > 1 && !nodes_empty(l->nodes) && - len < PAGE_SIZE - 60) - len += scnprintf(buf + len, PAGE_SIZE - len - 50, - " nodes=%*pbl", - nodemask_pr_args(&l->nodes)); - - len += sprintf(buf + len, "\n"); - } - - free_loc_track(&t); - if (!t.count) - len += sprintf(buf, "No data\n"); - return len; -} +#endif /* CONFIG_DEBUG_FS */ #endif /* CONFIG_SLUB_DEBUG */ #ifdef SLUB_RESILIENCY_TEST @@ -5316,21 +5250,6 @@ static ssize_t validate_store(struct kmem_cache *s, } SLAB_ATTR(validate); -static ssize_t alloc_calls_show(struct kmem_cache *s, char *buf) -{ - if (!(s->flags & SLAB_STORE_USER)) - return -ENOSYS; - return list_locations(s, buf, TRACK_ALLOC); -} -SLAB_ATTR_RO(alloc_calls); - -static ssize_t free_calls_show(struct kmem_cache *s, char *buf) -{ - if (!(s->flags & SLAB_STORE_USER)) - return -ENOSYS; - return list_locations(s, buf, TRACK_FREE); -} -SLAB_ATTR_RO(free_calls); #endif /* CONFIG_SLUB_DEBUG */ #ifdef CONFIG_FAILSLAB @@ -5491,8 +5410,6 @@ static struct attribute *slab_attrs[] = { &poison_attr.attr, &store_user_attr.attr, &validate_attr.attr, - &alloc_calls_attr.attr, - &free_calls_attr.attr, #endif #ifdef CONFIG_ZONE_DMA &cache_dma_attr.attr, @@ -5781,6 +5698,181 @@ static int __init slab_sysfs_init(void) __initcall(slab_sysfs_init); #endif /* CONFIG_SYSFS */ +#if defined(CONFIG_SLUB_DEBUG) && defined(CONFIG_DEBUG_FS) +static int slab_debugfs_show(struct seq_file *seq, void *v) +{ + + struct location *l; + unsigned int idx = *(unsigned int *)v; + struct loc_track *t = seq->private; + + if (idx < t->count) { + l = &t->loc[idx]; + + seq_printf(seq, "%7ld ", l->count); + + if (l->addr) + seq_printf(seq, "%pS", (void *)l->addr); + else + seq_puts(seq, ""); + + if (l->sum_time != l->min_time) { + seq_printf(seq, " age=%ld/%llu/%ld", + l->min_time, div_u64(l->sum_time, l->count), + l->max_time); + } else + seq_printf(seq, " age=%ld", l->min_time); + + if (l->min_pid != l->max_pid) + seq_printf(seq, " pid=%ld-%ld", l->min_pid, l->max_pid); + else + seq_printf(seq, " pid=%ld", + l->min_pid); + + if (num_online_cpus() > 1 && !cpumask_empty(to_cpumask(l->cpus))) + seq_printf(seq, " cpus=%*pbl", + cpumask_pr_args(to_cpumask(l->cpus))); + + if (nr_online_nodes > 1 && !nodes_empty(l->nodes)) + seq_printf(seq, " nodes=%*pbl", + nodemask_pr_args(&l->nodes)); + + seq_puts(seq, "\n"); + } + + if (!idx && !t->count) + seq_puts(seq, "No data\n"); + + return 0; +} + +static void slab_debugfs_stop(struct seq_file *seq, void *v) +{ + kfree(v); +} + +static void *slab_debugfs_next(struct seq_file *seq, void *v, loff_t *ppos) +{ + loff_t *spos = v; + struct loc_track *t = seq->private; + + if (*ppos < t->count) { + *ppos = ++*spos; + return spos; + } + *ppos = ++*spos; + return NULL; +} + +static void *slab_debugfs_start(struct seq_file *seq, loff_t *ppos) +{ + loff_t *spos = kmalloc(sizeof(loff_t), GFP_KERNEL); + + if (!spos) + return NULL; + + *spos = *ppos; + return spos; +} + +static const struct seq_operations slab_debugfs_sops = { + .start = slab_debugfs_start, + .next = slab_debugfs_next, + .stop = slab_debugfs_stop, + .show = slab_debugfs_show, +}; + +static int slab_debug_trace_open(struct inode *inode, struct file *filep) +{ + + struct kmem_cache_node *n; + enum track_item alloc; + int node; + struct loc_track *t = __seq_open_private(filep, &slab_debugfs_sops, + sizeof(struct loc_track)); + struct kmem_cache *s = file_inode(filep)->i_private; + + if (strcmp(filep->f_path.dentry->d_name.name, "alloc_traces") == 0) + alloc = TRACK_ALLOC; + else + alloc = TRACK_FREE; + + if (!alloc_loc_track(t, PAGE_SIZE / sizeof(struct location), GFP_KERNEL)) + return -ENOMEM; + + /* Push back cpu slabs */ + flush_all(s); + + for_each_kmem_cache_node(s, node, n) { + unsigned long flags; + struct page *page; + + if (!atomic_long_read(&n->nr_slabs)) + continue; + + spin_lock_irqsave(&n->list_lock, flags); + list_for_each_entry(page, &n->partial, slab_list) + process_slab(t, s, page, alloc); + list_for_each_entry(page, &n->full, slab_list) + process_slab(t, s, page, alloc); + spin_unlock_irqrestore(&n->list_lock, flags); + } + + return 0; +} + +static int slab_debug_trace_release(struct inode *inode, struct file *file) +{ + struct seq_file *seq = file->private_data; + struct loc_track *t = seq->private; + + free_loc_track(t); + return seq_release_private(inode, file); +} + +static const struct file_operations slab_debugfs_fops = { + .open = slab_debug_trace_open, + .read = seq_read, + .llseek = seq_lseek, + .release = slab_debug_trace_release, +}; + +static void debugfs_slab_add(struct kmem_cache *s) +{ + struct dentry *slab_cache_dir; + + if (unlikely(!slab_debugfs_root)) + return; + + slab_cache_dir = debugfs_create_dir(s->name, slab_debugfs_root); + + debugfs_create_file("alloc_traces", 0400, + slab_cache_dir, s, &slab_debugfs_fops); + + debugfs_create_file("free_traces", 0400, + slab_cache_dir, s, &slab_debugfs_fops); +} + +void debugfs_slab_release(struct kmem_cache *s) +{ + debugfs_remove_recursive(debugfs_lookup(s->name, slab_debugfs_root)); +} + +static int __init slab_debugfs_init(void) +{ + struct kmem_cache *s; + + slab_debugfs_root = debugfs_create_dir("slab", NULL); + + list_for_each_entry(s, &slab_caches, list) + if (s->flags & SLAB_STORE_USER) + debugfs_slab_add(s); + + return 0; + +} +__initcall(slab_debugfs_init); +#endif /* * The /proc/slabinfo ABI */ From b44e46bb047d136bc8977497b6fc2a9f08740321 Mon Sep 17 00:00:00 2001 From: Peter Collingbourne Date: Tue, 8 Jun 2021 12:57:27 +1000 Subject: [PATCH 195/196] FROMGIT: mm: improve mprotect(R|W) efficiency on pages referenced once In the Scudo memory allocator [1] we would like to be able to detect use-after-free vulnerabilities involving large allocations by issuing mprotect(PROT_NONE) on the memory region used for the allocation when it is deallocated. Later on, after the memory region has been "quarantined" for a sufficient period of time we would like to be able to use it for another allocation by issuing mprotect(PROT_READ|PROT_WRITE). Before this patch, after removing the write protection, any writes to the memory region would result in page faults and entering the copy-on-write code path, even in the usual case where the pages are only referenced by a single PTE, harming performance unnecessarily. Make it so that any pages in anonymous mappings that are only referenced by a single PTE are immediately made writable during the mprotect so that we can avoid the page faults. This program shows the critical syscall sequence that we intend to use in the allocator: #include #include enum { kSize = 131072 }; int main(int argc, char **argv) { char *addr = (char *)mmap(0, kSize, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); for (int i = 0; i != 100000; ++i) { memset(addr, i, kSize); mprotect((void *)addr, kSize, PROT_NONE); mprotect((void *)addr, kSize, PROT_READ | PROT_WRITE); } } The effect of this patch on the above program was measured on a DragonBoard 845c by taking the median real time execution time of 10 runs. Before: 2.94s After: 0.66s The effect was also measured using one of the microbenchmarks that we normally use to benchmark the allocator [2], after modifying it to make the appropriate mprotect calls [3]. With an allocation size of 131072 bytes to trigger the allocator's "large allocation" code path the per-iteration time was measured as follows: Before: 27450ns After: 6010ns This patch means that we do more work during the mprotect call itself in exchange for less work when the pages are accessed. In the worst case, the pages are not accessed at all. The effect of this patch in such cases was measured using the following program: #include #include enum { kSize = 131072 }; int main(int argc, char **argv) { char *addr = (char *)mmap(0, kSize, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); memset(addr, 1, kSize); for (int i = 0; i != 100000; ++i) { #ifdef PAGE_FAULT memset(addr + (i * 4096) % kSize, i, 4096); #endif mprotect((void *)addr, kSize, PROT_NONE); mprotect((void *)addr, kSize, PROT_READ | PROT_WRITE); } } With PAGE_FAULT undefined (0 pages touched after removing write protection) the median real time execution time of 100 runs was measured as follows: Before: 0.330260s After: 0.338836s With PAGE_FAULT defined (1 page touched) the measurements were as follows: Before: 0.438048s After: 0.355661s So it seems that even with a single page fault the new approach is faster. I saw similar results if I adjusted the programs to use a larger mapping size. With kSize = 1048576 I get these numbers with PAGE_FAULT undefined: Before: 1.428988s After: 1.512016s i.e. around 5.5%. And these with PAGE_FAULT defined: Before: 1.518559s After: 1.524417s i.e. about the same. What I think we may conclude from these results is that for smaller mappings the advantage of the previous approach, although measurable, is wiped out by a single page fault. I think we may expect that there should be at least one access resulting in a page fault (under the previous approach) after making the pages writable, since the program presumably made the pages writable for a reason. For larger mappings we may guesstimate that the new approach wins if the density of future page faults is > 0.4%. But for the mappings that are large enough for density to matter (not just the absolute number of page faults) it doesn't seem like the increase in mprotect latency would be very large relative to the total mprotect execution time. Link: https://lkml.kernel.org/r/20210527190453.1259020-1-pcc@google.com Link: https://linux-review.googlesource.com/id/I98d75ef90e20330c578871c87494d64b1df3f1b8 Link: [1] https://source.android.com/devices/tech/debug/scudo Link: [2] https://cs.android.com/android/platform/superproject/+/master:bionic/benchmarks/stdlib_benchmark.cpp;l=53;drc=e8693e78711e8f45ccd2b610e4dbe0b94d551cc9 Link: [3] https://github.com/pcc/llvm-project/commit/scudo-mprotect-secondary2 Signed-off-by: Peter Collingbourne Reviewed-by: Peter Xu Cc: Kostya Kortchinsky Cc: Evgenii Stepanov Cc: Andrea Arcangeli Signed-off-by: Andrew Morton Signed-off-by: Stephen Rothwell (cherry picked from commit e2037f9c0c61ed6964bb1291292ae88f073a100c https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm) [pcc: squashed v4->v5 diff which appeared as a separate commit: ec7563ea9f6a470e9bb532b024ce29d9474daf24] Change-Id: Ic3994b2ec914d3f62f95c1ef338986e350e69e36 Bug: 191165850 --- mm/mprotect.c | 52 +++++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 46 insertions(+), 6 deletions(-) diff --git a/mm/mprotect.c b/mm/mprotect.c index d95115a57283..05073d7abff4 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -35,6 +35,51 @@ #include "internal.h" +/* Determine whether we can avoid taking write faults for known dirty pages. */ +static bool may_avoid_write_fault(pte_t pte, struct vm_area_struct *vma, + unsigned long cp_flags) +{ + /* + * The dirty accountable bit indicates that we can always make the page + * writable regardless of the number of references. + */ + if (!(cp_flags & MM_CP_DIRTY_ACCT)) { + /* Otherwise, we must have exclusive access to the page. */ + if (!(vma_is_anonymous(vma) && (vma->vm_flags & VM_WRITE))) + return false; + + if (page_count(pte_page(pte)) != 1) + return false; + } + + /* + * Don't do this optimization for clean pages as we need to be notified + * of the transition from clean to dirty. + */ + if (!pte_dirty(pte)) + return false; + + /* Same for softdirty. */ + if (!pte_soft_dirty(pte) && (vma->vm_flags & VM_SOFTDIRTY)) + return false; + + /* + * For userfaultfd the user program needs to monitor write faults so we + * can't do this optimization. + */ + if (pte_uffd_wp(pte)) + return false; + + /* + * It is unclear whether this optimization can be done safely for NUMA + * pages. + */ + if (cp_flags & MM_CP_PROT_NUMA) + return false; + + return true; +} + static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd, unsigned long addr, unsigned long end, pgprot_t newprot, unsigned long cp_flags) @@ -43,7 +88,6 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd, spinlock_t *ptl; unsigned long pages = 0; int target_node = NUMA_NO_NODE; - bool dirty_accountable = cp_flags & MM_CP_DIRTY_ACCT; bool prot_numa = cp_flags & MM_CP_PROT_NUMA; bool uffd_wp = cp_flags & MM_CP_UFFD_WP; bool uffd_wp_resolve = cp_flags & MM_CP_UFFD_WP_RESOLVE; @@ -131,12 +175,8 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd, ptent = pte_clear_uffd_wp(ptent); } - /* Avoid taking write faults for known dirty pages */ - if (dirty_accountable && pte_dirty(ptent) && - (pte_soft_dirty(ptent) || - !(vma->vm_flags & VM_SOFTDIRTY))) { + if (may_avoid_write_fault(ptent, vma, cp_flags)) ptent = pte_mkwrite(ptent); - } ptep_modify_prot_commit(vma, addr, pte, oldpte, ptent); pages++; } else if (is_swap_pte(oldpte)) { From fbf19aeacc7f67156da54fda50ab4d3aaa0cec38 Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Tue, 15 Jun 2021 17:45:29 -0700 Subject: [PATCH 196/196] gki_config: Disable CONFIG_DEBUG_STACK_USAGE This config option was not requested by any partner and has non-zero overhead on process creation. Disable it. Bug: 191150949 Signed-off-by: Suren Baghdasaryan Change-Id: Ia9547c989c22246c46ed9624a0707c6369ee4de0 --- arch/arm64/configs/gki_defconfig | 1 - arch/x86/configs/gki_defconfig | 1 - 2 files changed, 2 deletions(-) diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig index 2289194dae73..b105917de219 100644 --- a/arch/arm64/configs/gki_defconfig +++ b/arch/arm64/configs/gki_defconfig @@ -665,7 +665,6 @@ CONFIG_UBSAN_LOCAL_BOUNDS=y # CONFIG_UBSAN_MISC is not set CONFIG_PAGE_OWNER=y CONFIG_PAGE_PINNER=y -CONFIG_DEBUG_STACK_USAGE=y CONFIG_DEBUG_MEMORY_INIT=y CONFIG_KASAN=y CONFIG_KASAN_HW_TAGS=y diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig index 70f2af205cbf..90068d0036ad 100644 --- a/arch/x86/configs/gki_defconfig +++ b/arch/x86/configs/gki_defconfig @@ -601,7 +601,6 @@ CONFIG_UBSAN_LOCAL_BOUNDS=y # CONFIG_UBSAN_MISC is not set CONFIG_PAGE_OWNER=y CONFIG_PAGE_PINNER=y -CONFIG_DEBUG_STACK_USAGE=y CONFIG_DEBUG_MEMORY_INIT=y CONFIG_KFENCE=y CONFIG_KFENCE_SAMPLE_INTERVAL=500