Commit Graph

1077 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
1328352dcd Merge branch 'android12-5.10' into android12-5.10-lts
Sync up with android12-5.10 for the following commits:

870488eb07 ANDROID: GKI: 7/14/2021 KMI update
e9742a9ea5 ANDROID: Update the ABI symbol list
ec2190fd3f FROMLIST: arm64: avoid double ISB on kernel entry
98b2c1dd1c FROMLIST: arm64: mte: optimize GCR_EL1 modification on kernel entry/exit
a20103c331 BACKPORT: FROMLIST: arm64: mte: avoid TFSR related operations unless in async mode
3972be647a FROMLIST: Documentation: document the preferred tag checking mode feature
5adf29adb5 FROMLIST: arm64: mte: introduce a per-CPU tag checking mode preference
ce5ba15abc FROMLIST: arm64: move preemption disablement to prctl handlers
6c08feaa27 FROMLIST: arm64: mte: change ASYNC and SYNC TCF settings into bitfields
f438cf16cd FROMLIST: arm64: mte: rename gcr_user_excl to mte_ctrl
a4c9e551b6 BACKPORT: arm64: pac: Optimize kernel entry/exit key installation code paths
50829b8901 BACKPORT: arm64: Introduce prctl(PR_PAC_{SET,GET}_ENABLED_KEYS)
6119d18df7 ANDROID: cleancache: add oem data to cleancache_ops
a0c429e8e1 ANDROID: blkdev: add oem data to block_device_operations
26cd2564e1 FROMLIST: psi: stop relying on timer_pending for poll_work rescheduling
e85b291d7d ANDROID: GKI: Enable CONFIG_MEMCG
0ed7424fa0 ANDROID: GKI: net: add vendor hooks for 'struct sock' lifecycle
4d30956478 ANDROID: GKI: net: add vendor hooks for 'struct nf_conn' lifecycle
7786463e48 ANDROID: GKI: add vendor padding variable in struct sock
280c9b98aa ANDROID: GKI: add vendor padding variable in struct nf_conn
9d1b55d20a ANDROID: vendor_hooks: add a field in mem_cgroup
65115fdbf8 ANDROID: vendor_hooks: add a field in pglist_data
26920e0f3a FROMLIST: usb: dwc3: avoid NULL access of usb_gadget_driver
5bb2dd8d39 FROMGIT: usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default
79274dbb00 FROMGIT: usb: dwc3: Resize TX FIFOs to meet EP bursting requirements
1e11f36199 FROMGIT: usb: gadget: configfs: Check USB configuration before adding
6da5e7afbf FROMGIT: usb: gadget: udc: core: Introduce check_config to verify USB configuration
2ed5fbf261 ANDROID: GKI: fscrypt: add OEM data to struct fscrypt_operations
194fd9239a ANDROID: GKI: fscrypt: add ABI padding to struct fscrypt_operations
8011eb2215 ANDROID: mm: provision to add shmem pages to inactive file lru head
9bb1247653 ANDROID: GKI: Enable CONFIG_CGROUP_NET_PRIO
a1ce719ca7 ANDROID: Delete the DMA-BUF attachment sysfs statistics
a2b3afb2f7 ANDROID: android: Add symbols to debug_symbols driver
914a7b14a0 UPSTREAM: USB: UDC core: Add udc_async_callbacks gadget op
9af9ef8dfa ANDROID: vendor_hooks: Add oem data to file struct
37485a3025 ANDROID: add kabi padding for structures for the android12 release
429c78f9b0 ANDROID: GKI: device.h: add Android ABI padding to some structures
aea5e1c230 ANDROID: GKI: elevator: add Android ABI padding to some structures
1b79ef2754 ANDROID: GKI: scsi: add Android ABI padding to some structures
33175403b9 ANDROID: GKI: workqueue.h: add Android ABI padding to some structures
d5c344a498 ANDROID: GKI: sched: add Android ABI padding to some structures
9c4854fa5a ANDROID: GKI: phy: add Android ABI padding to some structures
f4872b2353 ANDROID: GKI: fs.h: add Android ABI padding to some structures
48cddc7c42 ANDROID: GKI: dentry: add Android ABI padding to some structures
b9081a2925 ANDROID: GKI: bio: add Android ABI padding to some structures
99bf8cf8fa ANDROID: GKI: ufs: add Android ABI padding to some structures
9df147298f ANDROID: Update the generic symbol list
12f48605e8 ANDROID: mm: cma do not sleep for __GFP_NORETRY
0e688e972d ANDROID: mm: cma: skip problematic pageblock
9938b82be1 ANDROID: mm: bail out tlb free batching on page zapping when cma is going on
c8578a3e90 ANDROID: mm: lru_cache_disable skips lru cache drainnig
c01ce3b5ef ANDROID: mm: do not try test_page_isoalte if migration fails
675e504598 ANDROID: mm: add cma allocation statistics
b1e4543c27 UPSTREAM: mm, page_alloc: move draining pcplists to page isolation users
13bc06efd9 ANDROID: ALSA: compress: add vendor hook to support pause in draining
2faed77792 ANDROID: vendor_hooks: add vendor hook in blk_mq_rq_ctx_init()
292baba45a ANDROID: abi_gki_aarch64_qcom: Add I3C core symbols to qcom tree
eecc725a8e ANDROID: vendor_hooks: add vendor hook in blk_mq_alloc_rqs()
9c2958f454 ANDROID: GKI: Export put_task_stack symbol
288805c86a ANDROID: abi_gki_aarch64_qcom: Add idr_alloc_u32
e8516fd3af ANDROID: sound: usb: add vendor hook for cpu suspend support
d820d22b5d ANDROID: mm: page_pinner: use EXPORT_SYMBOL_GPL
efc09793ea ANDROID: GKI: update allowed GKI symbol for Exynosauto SoC
67e3e39eb1 ANDROID: GKI: sync allowed list for exynosauto SoC
d25e256373 ANDROID: ABI: add new symbols required by fips140.ko
50661975be ANDROID: fips140: add/update module help text
b7397e89db ANDROID: fips140: add power-up cryptographic self-tests
bd7d13c36e ANDROID: arm64: disable LSE when building the FIPS140 module
1061ef0493 ANDROID: jump_label: disable jump labels in fips140.ko
dcf509fea7 ANDROID: ipv6: add vendor hook for gen ipv6 link-local addr
018332e871 ANDROID: Revert "scsi: block: Do not accept any requests while suspended"
2ad2c3a25b ANDROID: abi_gki_aarch64_qcom: whitelist vm_event_states
7bcfde2601 ANDROID: ashmem: Export is_ashmem_file

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7d60121fa9f25f007dab97dd666adcdb1964afc8
2021-07-15 17:17:09 +02:00
Greg Kroah-Hartman
11b396dfd9 Revert "Add a reference to ucounts for each cred"
This reverts commit b2c4d9a33c.

It breaks the abi and is not needed on Android kernels.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I295a6c8088e4297400c1feebd78abd2f6c5edd7e
2021-07-14 19:46:17 +02:00
Greg Kroah-Hartman
2df0fb4a4b Merge 5.10.50 into android12-5.10-lts
Changes in 5.10.50
	Bluetooth: hci_qca: fix potential GPF
	Bluetooth: btqca: Don't modify firmware contents in-place
	Bluetooth: Remove spurious error message
	ALSA: usb-audio: fix rate on Ozone Z90 USB headset
	ALSA: usb-audio: Fix OOB access at proc output
	ALSA: firewire-motu: fix stream format for MOTU 8pre FireWire
	ALSA: usb-audio: scarlett2: Fix wrong resume call
	ALSA: intel8x0: Fix breakage at ac97 clock measurement
	ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 450 G8
	ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 445 G8
	ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 630 G8
	ALSA: hda/realtek: Add another ALC236 variant support
	ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook x360 830 G8
	ALSA: hda/realtek: Improve fixup for HP Spectre x360 15-df0xxx
	ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D
	ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too
	ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 830 G8 Notebook PC
	media: dvb-usb: fix wrong definition
	Input: usbtouchscreen - fix control-request directions
	net: can: ems_usb: fix use-after-free in ems_usb_disconnect()
	usb: gadget: eem: fix echo command packet response issue
	usb: renesas-xhci: Fix handling of unknown ROM state
	USB: cdc-acm: blacklist Heimann USB Appset device
	usb: dwc3: Fix debugfs creation flow
	usb: typec: Add the missed altmode_id_remove() in typec_register_altmode()
	xhci: solve a double free problem while doing s4
	gfs2: Fix underflow in gfs2_page_mkwrite
	gfs2: Fix error handling in init_statfs
	ntfs: fix validity check for file name attribute
	selftests/lkdtm: Avoid needing explicit sub-shell
	copy_page_to_iter(): fix ITER_DISCARD case
	iov_iter_fault_in_readable() should do nothing in xarray case
	Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
	crypto: nx - Fix memcpy() over-reading in nonce
	crypto: ccp - Annotate SEV Firmware file names
	arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode
	ARM: dts: ux500: Fix LED probing
	ARM: dts: at91: sama5d4: fix pinctrl muxing
	btrfs: send: fix invalid path for unlink operations after parent orphanization
	btrfs: compression: don't try to compress if we don't have enough pages
	btrfs: clear defrag status of a root if starting transaction fails
	ext4: cleanup in-core orphan list if ext4_truncate() failed to get a transaction handle
	ext4: fix kernel infoleak via ext4_extent_header
	ext4: fix overflow in ext4_iomap_alloc()
	ext4: return error code when ext4_fill_flex_info() fails
	ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit
	ext4: remove check for zero nr_to_scan in ext4_es_scan()
	ext4: fix avefreec in find_group_orlov
	ext4: use ext4_grp_locked_error in mb_find_extent
	can: bcm: delay release of struct bcm_op after synchronize_rcu()
	can: gw: synchronize rcu operations before removing gw job entry
	can: isotp: isotp_release(): omit unintended hrtimer restart on socket release
	can: j1939: j1939_sk_init(): set SOCK_RCU_FREE to call sk_destruct() after RCU is done
	can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path
	mac80211: remove iwlwifi specific workaround that broke sta NDP tx
	SUNRPC: Fix the batch tasks count wraparound.
	SUNRPC: Should wake up the privileged task firstly.
	bus: mhi: Wait for M2 state during system resume
	mm/gup: fix try_grab_compound_head() race with split_huge_page()
	perf/smmuv3: Don't trample existing events with global filter
	KVM: nVMX: Handle split-lock #AC exceptions that happen in L2
	KVM: PPC: Book3S HV: Workaround high stack usage with clang
	KVM: x86/mmu: Treat NX as used (not reserved) for all !TDP shadow MMUs
	KVM: x86/mmu: Use MMU's role to detect CR4.SMEP value in nested NPT walk
	s390/cio: dont call css_wait_for_slow_path() inside a lock
	s390: mm: Fix secure storage access exception handling
	f2fs: Prevent swap file in LFS mode
	clk: agilex/stratix10/n5x: fix how the bypass_reg is handled
	clk: agilex/stratix10: remove noc_clk
	clk: agilex/stratix10: fix bypass representation
	rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path
	iio: frequency: adf4350: disable reg and clk on error in adf4350_probe()
	iio: light: tcs3472: do not free unallocated IRQ
	iio: ltr501: mark register holding upper 8 bits of ALS_DATA{0,1} and PS_DATA as volatile, too
	iio: ltr501: ltr559: fix initialization of LTR501_ALS_CONTR
	iio: ltr501: ltr501_read_ps(): add missing endianness conversion
	iio: accel: bma180: Fix BMA25x bandwidth register values
	serial: mvebu-uart: fix calculation of clock divisor
	serial: sh-sci: Stop dmaengine transfer in sci_stop_tx()
	serial_cs: Add Option International GSM-Ready 56K/ISDN modem
	serial_cs: remove wrong GLOBETROTTER.cis entry
	ath9k: Fix kernel NULL pointer dereference during ath_reset_internal()
	ssb: sdio: Don't overwrite const buffer if block_write fails
	rsi: Assign beacon rate settings to the correct rate_info descriptor field
	rsi: fix AP mode with WPA failure due to encrypted EAPOL
	tracing/histograms: Fix parsing of "sym-offset" modifier
	tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
	seq_buf: Make trace_seq_putmem_hex() support data longer than 8
	powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
	loop: Fix missing discard support when using LOOP_CONFIGURE
	evm: Execute evm_inode_init_security() only when an HMAC key is loaded
	evm: Refuse EVM_ALLOW_METADATA_WRITES only if an HMAC key is loaded
	fuse: Fix crash in fuse_dentry_automount() error path
	fuse: Fix crash if superblock of submount gets killed early
	fuse: Fix infinite loop in sget_fc()
	fuse: ignore PG_workingset after stealing
	fuse: check connected before queueing on fpq->io
	fuse: reject internal errno
	thermal/cpufreq_cooling: Update offline CPUs per-cpu thermal_pressure
	spi: Make of_register_spi_device also set the fwnode
	Add a reference to ucounts for each cred
	staging: media: rkvdec: fix pm_runtime_get_sync() usage count
	media: marvel-ccic: fix some issues when getting pm_runtime
	media: mdk-mdp: fix pm_runtime_get_sync() usage count
	media: s5p: fix pm_runtime_get_sync() usage count
	media: am437x: fix pm_runtime_get_sync() usage count
	media: sh_vou: fix pm_runtime_get_sync() usage count
	media: mtk-vcodec: fix PM runtime get logic
	media: s5p-jpeg: fix pm_runtime_get_sync() usage count
	media: sunxi: fix pm_runtime_get_sync() usage count
	media: sti/bdisp: fix pm_runtime_get_sync() usage count
	media: exynos4-is: fix pm_runtime_get_sync() usage count
	media: exynos-gsc: fix pm_runtime_get_sync() usage count
	spi: spi-loopback-test: Fix 'tx_buf' might be 'rx_buf'
	spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages()
	spi: omap-100k: Fix the length judgment problem
	regulator: uniphier: Add missing MODULE_DEVICE_TABLE
	sched/core: Initialize the idle task with preemption disabled
	hwrng: exynos - Fix runtime PM imbalance on error
	crypto: nx - add missing MODULE_DEVICE_TABLE
	media: sti: fix obj-$(config) targets
	media: cpia2: fix memory leak in cpia2_usb_probe
	media: cobalt: fix race condition in setting HPD
	media: hevc: Fix dependent slice segment flags
	media: pvrusb2: fix warning in pvr2_i2c_core_done
	media: imx: imx7_mipi_csis: Fix logging of only error event counters
	crypto: qat - check return code of qat_hal_rd_rel_reg()
	crypto: qat - remove unused macro in FW loader
	crypto: qce: skcipher: Fix incorrect sg count for dma transfers
	arm64: perf: Convert snprintf to sysfs_emit
	sched/fair: Fix ascii art by relpacing tabs
	media: i2c: ov2659: Use clk_{prepare_enable,disable_unprepare}() to set xvclk on/off
	media: bt878: do not schedule tasklet when it is not setup
	media: em28xx: Fix possible memory leak of em28xx struct
	media: hantro: Fix .buf_prepare
	media: cedrus: Fix .buf_prepare
	media: v4l2-core: Avoid the dangling pointer in v4l2_fh_release
	media: bt8xx: Fix a missing check bug in bt878_probe
	media: st-hva: Fix potential NULL pointer dereferences
	crypto: hisilicon/sec - fixup 3des minimum key size declaration
	Makefile: fix GDB warning with CONFIG_RELR
	media: dvd_usb: memory leak in cinergyt2_fe_attach
	memstick: rtsx_usb_ms: fix UAF
	mmc: sdhci-sprd: use sdhci_sprd_writew
	mmc: via-sdmmc: add a check against NULL pointer dereference
	spi: meson-spicc: fix a wrong goto jump for avoiding memory leak.
	spi: meson-spicc: fix memory leak in meson_spicc_probe
	crypto: shash - avoid comparing pointers to exported functions under CFI
	media: dvb_net: avoid speculation from net slot
	media: siano: fix device register error path
	media: imx-csi: Skip first few frames from a BT.656 source
	hwmon: (max31790) Report correct current pwm duty cycles
	hwmon: (max31790) Fix pwmX_enable attributes
	drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe()
	KVM: PPC: Book3S HV: Fix TLB management on SMT8 POWER9 and POWER10 processors
	btrfs: fix error handling in __btrfs_update_delayed_inode
	btrfs: abort transaction if we fail to update the delayed inode
	btrfs: sysfs: fix format string for some discard stats
	btrfs: don't clear page extent mapped if we're not invalidating the full page
	btrfs: disable build on platforms having page size 256K
	locking/lockdep: Fix the dep path printing for backwards BFS
	lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage()
	KVM: s390: get rid of register asm usage
	regulator: mt6358: Fix vdram2 .vsel_mask
	regulator: da9052: Ensure enough delay time for .set_voltage_time_sel
	media: Fix Media Controller API config checks
	ACPI: video: use native backlight for GA401/GA502/GA503
	HID: do not use down_interruptible() when unbinding devices
	EDAC/ti: Add missing MODULE_DEVICE_TABLE
	ACPI: processor idle: Fix up C-state latency if not ordered
	hv_utils: Fix passing zero to 'PTR_ERR' warning
	lib: vsprintf: Fix handling of number field widths in vsscanf
	Input: goodix - platform/x86: touchscreen_dmi - Move upside down quirks to touchscreen_dmi.c
	platform/x86: touchscreen_dmi: Add an extra entry for the upside down Goodix touchscreen on Teclast X89 tablets
	platform/x86: touchscreen_dmi: Add info for the Goodix GT912 panel of TM800A550L tablets
	ACPI: EC: Make more Asus laptops use ECDT _GPE
	block_dump: remove block_dump feature in mark_inode_dirty()
	blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter
	blk-mq: clear stale request in tags->rq[] before freeing one request pool
	fs: dlm: cancel work sync othercon
	random32: Fix implicit truncation warning in prandom_seed_state()
	open: don't silently ignore unknown O-flags in openat2()
	drivers: hv: Fix missing error code in vmbus_connect()
	fs: dlm: fix memory leak when fenced
	ACPICA: Fix memory leak caused by _CID repair function
	ACPI: bus: Call kobject_put() in acpi_init() error path
	ACPI: resources: Add checks for ACPI IRQ override
	block: fix race between adding/removing rq qos and normal IO
	platform/x86: asus-nb-wmi: Revert "Drop duplicate DMI quirk structures"
	platform/x86: asus-nb-wmi: Revert "add support for ASUS ROG Zephyrus G14 and G15"
	platform/x86: toshiba_acpi: Fix missing error code in toshiba_acpi_setup_keyboard()
	nvme-pci: fix var. type for increasing cq_head
	nvmet-fc: do not check for invalid target port in nvmet_fc_handle_fcp_rqst()
	EDAC/Intel: Do not load EDAC driver when running as a guest
	PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv()
	cifs: improve fallocate emulation
	ACPI: EC: trust DSDT GPE for certain HP laptop
	clocksource: Retry clock read if long delays detected
	clocksource: Check per-CPU clock synchronization when marked unstable
	tpm_tis_spi: add missing SPI device ID entries
	ACPI: tables: Add custom DSDT file as makefile prerequisite
	HID: wacom: Correct base usage for capacitive ExpressKey status bits
	cifs: fix missing spinlock around update to ses->status
	mailbox: qcom: Use PLATFORM_DEVID_AUTO to register platform device
	block: fix discard request merge
	kthread_worker: fix return value when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync()
	ia64: mca_drv: fix incorrect array size calculation
	writeback, cgroup: increment isw_nr_in_flight before grabbing an inode
	spi: Allow to have all native CSs in use along with GPIOs
	spi: Avoid undefined behaviour when counting unused native CSs
	media: venus: Rework error fail recover logic
	media: s5p_cec: decrement usage count if disabled
	media: hantro: do a PM resume earlier
	crypto: ixp4xx - dma_unmap the correct address
	crypto: ixp4xx - update IV after requests
	crypto: ux500 - Fix error return code in hash_hw_final()
	sata_highbank: fix deferred probing
	pata_rb532_cf: fix deferred probing
	media: I2C: change 'RST' to "RSET" to fix multiple build errors
	sched/uclamp: Fix wrong implementation of cpu.uclamp.min
	sched/uclamp: Fix locking around cpu_util_update_eff()
	kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n'
	pata_octeon_cf: avoid WARN_ON() in ata_host_activate()
	evm: fix writing <securityfs>/evm overflow
	x86/elf: Use _BITUL() macro in UAPI headers
	crypto: sa2ul - Fix leaks on failure paths with sa_dma_init()
	crypto: sa2ul - Fix pm_runtime enable in sa_ul_probe()
	crypto: ccp - Fix a resource leak in an error handling path
	media: rc: i2c: Fix an error message
	pata_ep93xx: fix deferred probing
	locking/lockdep: Reduce LOCKDEP dependency list
	media: rkvdec: Fix .buf_prepare
	media: exynos4-is: Fix a use after free in isp_video_release
	media: au0828: fix a NULL vs IS_ERR() check
	media: tc358743: Fix error return code in tc358743_probe_of()
	media: gspca/gl860: fix zero-length control requests
	m68k: atari: Fix ATARI_KBD_CORE kconfig unmet dependency warning
	media: siano: Fix out-of-bounds warnings in smscore_load_firmware_family2()
	regulator: fan53880: Fix vsel_mask setting for FAN53880_BUCK
	crypto: nitrox - fix unchecked variable in nitrox_register_interrupts
	crypto: omap-sham - Fix PM reference leak in omap sham ops
	crypto: x86/curve25519 - fix cpu feature checking logic in mod_exit
	crypto: sm2 - remove unnecessary reset operations
	crypto: sm2 - fix a memory leak in sm2
	mmc: usdhi6rol0: fix error return code in usdhi6_probe()
	arm64: consistently use reserved_pg_dir
	arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan
	media: subdev: remove VIDIOC_DQEVENT_TIME32 handling
	media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx
	hwmon: (lm70) Use device_get_match_data()
	hwmon: (lm70) Revert "hwmon: (lm70) Add support for ACPI"
	hwmon: (max31722) Remove non-standard ACPI device IDs
	hwmon: (max31790) Fix fan speed reporting for fan7..12
	KVM: nVMX: Sync all PGDs on nested transition with shadow paging
	KVM: nVMX: Ensure 64-bit shift when checking VMFUNC bitmap
	KVM: nVMX: Don't clobber nested MMU's A/D status on EPTP switch
	KVM: x86/mmu: Fix return value in tdp_mmu_map_handle_target_level()
	perf/arm-cmn: Fix invalid pointer when access dtc object sharing the same IRQ number
	KVM: arm64: Don't zero the cycle count register when PMCR_EL0.P is set
	regulator: hi655x: Fix pass wrong pointer to config.driver_data
	btrfs: clear log tree recovering status if starting transaction fails
	x86/sev: Make sure IRQs are disabled while GHCB is active
	x86/sev: Split up runtime #VC handler for correct state tracking
	sched/rt: Fix RT utilization tracking during policy change
	sched/rt: Fix Deadline utilization tracking during policy change
	sched/uclamp: Fix uclamp_tg_restrict()
	lockdep: Fix wait-type for empty stack
	lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING
	spi: spi-sun6i: Fix chipselect/clock bug
	crypto: nx - Fix RCU warning in nx842_OF_upd_status
	psi: Fix race between psi_trigger_create/destroy
	media: v4l2-async: Clean v4l2_async_notifier_add_fwnode_remote_subdev
	media: video-mux: Skip dangling endpoints
	PM / devfreq: Add missing error code in devfreq_add_device()
	ACPI: PM / fan: Put fan device IDs into separate header file
	block: avoid double io accounting for flush request
	nvme-pci: look for StorageD3Enable on companion ACPI device instead
	ACPI: sysfs: Fix a buffer overrun problem with description_show()
	mark pstore-blk as broken
	clocksource/drivers/timer-ti-dm: Save and restore timer TIOCP_CFG
	extcon: extcon-max8997: Fix IRQ freeing at error path
	ACPI: APEI: fix synchronous external aborts in user-mode
	blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()
	blk-wbt: make sure throttle is enabled properly
	ACPI: Use DEVICE_ATTR_<RW|RO|WO> macros
	ACPI: bgrt: Fix CFI violation
	cpufreq: Make cpufreq_online() call driver->offline() on errors
	blk-mq: update hctx->dispatch_busy in case of real scheduler
	ocfs2: fix snprintf() checking
	dax: fix ENOMEM handling in grab_mapping_entry()
	mm/debug_vm_pgtable/basic: add validation for dirtiness after write protect
	mm/debug_vm_pgtable/basic: iterate over entire protection_map[]
	mm/debug_vm_pgtable: ensure THP availability via has_transparent_hugepage()
	swap: fix do_swap_page() race with swapoff
	mm/shmem: fix shmem_swapin() race with swapoff
	mm: memcg/slab: properly set up gfp flags for objcg pointer array
	mm: page_alloc: refactor setup_per_zone_lowmem_reserve()
	mm/page_alloc: fix counting of managed_pages
	xfrm: xfrm_state_mtu should return at least 1280 for ipv6
	drm/bridge/sii8620: fix dependency on extcon
	drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable()
	drm/amd/dc: Fix a missing check bug in dm_dp_mst_detect()
	drm/ast: Fix missing conversions to managed API
	video: fbdev: imxfb: Fix an error message
	net: mvpp2: Put fwnode in error case during ->probe()
	net: pch_gbe: Propagate error from devm_gpio_request_one()
	pinctrl: renesas: r8a7796: Add missing bias for PRESET# pin
	pinctrl: renesas: r8a77990: JTAG pins do not have pull-down capabilities
	drm/vmwgfx: Mark a surface gpu-dirty after the SVGA3dCmdDXGenMips command
	drm/vmwgfx: Fix cpu updates of coherent multisample surfaces
	net: qrtr: ns: Fix error return code in qrtr_ns_init()
	clk: meson: g12a: fix gp0 and hifi ranges
	net: ftgmac100: add missing error return code in ftgmac100_probe()
	drm: rockchip: set alpha_en to 0 if it is not used
	drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write()
	drm/rockchip: dsi: move all lane config except LCDC mux to bind()
	drm/rockchip: lvds: Fix an error handling path
	drm/rockchip: cdn-dp: fix sign extension on an int multiply for a u64 result
	mptcp: fix pr_debug in mptcp_token_new_connect
	mptcp: generate subflow hmac after mptcp_finish_join()
	RDMA/srp: Fix a recently introduced memory leak
	RDMA/rtrs-clt: Check state of the rtrs_clt_sess before reading its stats
	RDMA/rtrs: Do not reset hb_missed_max after re-connection
	RDMA/rtrs-srv: Fix memory leak of unfreed rtrs_srv_stats object
	RDMA/rtrs-srv: Fix memory leak when having multiple sessions
	RDMA/rtrs-clt: Check if the queue_depth has changed during a reconnection
	RDMA/rtrs-clt: Fix memory leak of not-freed sess->stats and stats->pcpu_stats
	ehea: fix error return code in ehea_restart_qps()
	clk: tegra30: Use 300MHz for video decoder by default
	xfrm: remove the fragment check for ipv6 beet mode
	net/sched: act_vlan: Fix modify to allow 0
	RDMA/core: Sanitize WQ state received from the userspace
	drm/pl111: depend on CONFIG_VEXPRESS_CONFIG
	RDMA/rxe: Fix failure during driver load
	drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
	drm/vc4: hdmi: Fix error path of hpd-gpios
	clk: vc5: fix output disabling when enabling a FOD
	drm: qxl: ensure surf.data is ininitialized
	tools/bpftool: Fix error return code in do_batch()
	ath10k: go to path err_unsupported when chip id is not supported
	ath10k: add missing error return code in ath10k_pci_probe()
	wireless: carl9170: fix LEDS build errors & warnings
	ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others
	clk: imx8mq: remove SYS PLL 1/2 clock gates
	wcn36xx: Move hal_buf allocation to devm_kmalloc in probe
	ssb: Fix error return code in ssb_bus_scan()
	brcmfmac: fix setting of station info chains bitmask
	brcmfmac: correctly report average RSSI in station info
	brcmfmac: Fix a double-free in brcmf_sdio_bus_reset
	brcmsmac: mac80211_if: Fix a resource leak in an error handling path
	cw1200: Revert unnecessary patches that fix unreal use-after-free bugs
	ath11k: Fix an error handling path in ath11k_core_fetch_board_data_api_n()
	ath10k: Fix an error code in ath10k_add_interface()
	ath11k: send beacon template after vdev_start/restart during csa
	netlabel: Fix memory leak in netlbl_mgmt_add_common
	RDMA/mlx5: Don't add slave port to unaffiliated list
	netfilter: nft_exthdr: check for IPv6 packet before further processing
	netfilter: nft_osf: check for TCP packet before further processing
	netfilter: nft_tproxy: restrict support to TCP and UDP transport protocols
	RDMA/rxe: Fix qp reference counting for atomic ops
	selftests/bpf: Whitelist test_progs.h from .gitignore
	xsk: Fix missing validation for skb and unaligned mode
	xsk: Fix broken Tx ring validation
	bpf: Fix libelf endian handling in resolv_btfids
	RDMA/rtrs-srv: Set minimal max_send_wr and max_recv_wr
	samples/bpf: Fix Segmentation fault for xdp_redirect command
	samples/bpf: Fix the error return code of xdp_redirect's main()
	mt76: fix possible NULL pointer dereference in mt76_tx
	mt76: mt7615: fix NULL pointer dereference in tx_prepare_skb()
	net: ethernet: aeroflex: fix UAF in greth_of_remove
	net: ethernet: ezchip: fix UAF in nps_enet_remove
	net: ethernet: ezchip: fix error handling
	vrf: do not push non-ND strict packets with a source LLA through packet taps again
	net: sched: add barrier to ensure correct ordering for lockless qdisc
	tls: prevent oversized sendfile() hangs by ignoring MSG_MORE
	netfilter: nf_tables_offload: check FLOW_DISSECTOR_KEY_BASIC in VLAN transfer logic
	pkt_sched: sch_qfq: fix qfq_change_class() error path
	xfrm: Fix xfrm offload fallback fail case
	iwlwifi: increase PNVM load timeout
	rtw88: 8822c: fix lc calibration timing
	vxlan: add missing rcu_read_lock() in neigh_reduce()
	ip6_tunnel: fix GRE6 segmentation
	net/ipv4: swap flow ports when validating source
	net: ti: am65-cpsw-nuss: Fix crash when changing number of TX queues
	tc-testing: fix list handling
	ieee802154: hwsim: Fix memory leak in hwsim_add_one
	ieee802154: hwsim: avoid possible crash in hwsim_del_edge_nl()
	bpf: Fix null ptr deref with mixed tail calls and subprogs
	drm/msm: Fix error return code in msm_drm_init()
	drm/msm/dpu: Fix error return code in dpu_mdss_init()
	mac80211: remove iwlwifi specific workaround NDPs of null_response
	net: bcmgenet: Fix attaching to PYH failed on RPi 4B
	ipv6: exthdrs: do not blindly use init_net
	can: j1939: j1939_sk_setsockopt(): prevent allocation of j1939 filter for optlen == 0
	bpf: Do not change gso_size during bpf_skb_change_proto()
	i40e: Fix error handling in i40e_vsi_open
	i40e: Fix autoneg disabling for non-10GBaseT links
	i40e: Fix missing rtnl locking when setting up pf switch
	Revert "ibmvnic: remove duplicate napi_schedule call in open function"
	ibmvnic: set ltb->buff to NULL after freeing
	ibmvnic: free tx_pool if tso_pool alloc fails
	RDMA/cma: Protect RMW with qp_mutex
	net: macsec: fix the length used to copy the key for offloading
	net: phy: mscc: fix macsec key length
	net: atlantic: fix the macsec key length
	ipv6: fix out-of-bound access in ip6_parse_tlv()
	e1000e: Check the PCIm state
	net: dsa: sja1105: fix NULL pointer dereference in sja1105_reload_cbs()
	bpfilter: Specify the log level for the kmsg message
	RDMA/cma: Fix incorrect Packet Lifetime calculation
	gve: Fix swapped vars when fetching max queues
	Revert "be2net: disable bh with spin_lock in be_process_mcc"
	Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid
	Bluetooth: Fix not sending Set Extended Scan Response
	Bluetooth: Fix Set Extended (Scan Response) Data
	Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event
	clk: actions: Fix UART clock dividers on Owl S500 SoC
	clk: actions: Fix SD clocks factor table on Owl S500 SoC
	clk: actions: Fix bisp_factor_table based clocks on Owl S500 SoC
	clk: actions: Fix AHPPREDIV-H-AHB clock chain on Owl S500 SoC
	clk: qcom: clk-alpha-pll: fix CAL_L write in alpha_pll_fabia_prepare
	clk: si5341: Wait for DEVICE_READY on startup
	clk: si5341: Avoid divide errors due to bogus register contents
	clk: si5341: Check for input clock presence and PLL lock on startup
	clk: si5341: Update initialization magic
	writeback: fix obtain a reference to a freeing memcg css
	net: lwtunnel: handle MTU calculation in forwading
	net: sched: fix warning in tcindex_alloc_perfect_hash
	net: tipc: fix FB_MTU eat two pages
	RDMA/mlx5: Don't access NULL-cleared mpi pointer
	RDMA/core: Always release restrack object
	MIPS: Fix PKMAP with 32-bit MIPS huge page support
	staging: fbtft: Rectify GPIO handling
	staging: fbtft: Don't spam logs when probe is deferred
	ASoC: rt5682: Disable irq on shutdown
	rcu: Invoke rcu_spawn_core_kthreads() from rcu_spawn_gp_kthread()
	serial: fsl_lpuart: don't modify arbitrary data on lpuart32
	serial: fsl_lpuart: remove RTSCTS handling from get_mctrl()
	serial: 8250_omap: fix a timeout loop condition
	tty: nozomi: Fix a resource leak in an error handling function
	mwifiex: re-fix for unaligned accesses
	iio: adis_buffer: do not return ints in irq handlers
	iio: adis16400: do not return ints in irq handlers
	iio: adis16475: do not return ints in irq handlers
	iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: bma220: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: hid: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: kxcjk-1013: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: mxc4005: Fix overread of data and alignment issue.
	iio: accel: stk8312: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: stk8ba50: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: ti-ads1015: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: vf610: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: gyro: bmg160: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: humidity: am2315: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: srf08: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: pulsed-light: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: as3935: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: magn: hmc5843: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: magn: bmc150: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: isl29125: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: tcs3414: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: tcs3472: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: chemical: atlas: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: cros_ec_sensors: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	iio: potentiostat: lmp91000: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	ASoC: rk3328: fix missing clk_disable_unprepare() on error in rk3328_platform_probe()
	ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup()
	backlight: lm3630a_bl: Put fwnode in error case during ->probe()
	ASoC: rsnd: tidyup loop on rsnd_adg_clk_query()
	Input: hil_kbd - fix error return code in hil_dev_connect()
	perf scripting python: Fix tuple_set_u64()
	mtd: partitions: redboot: seek fis-index-block in the right node
	mtd: rawnand: arasan: Ensure proper configuration for the asserted target
	staging: mmal-vchiq: Fix incorrect static vchiq_instance.
	char: pcmcia: error out if 'num_bytes_read' is greater than 4 in set_protocol()
	firmware: stratix10-svc: Fix a resource leak in an error handling path
	tty: nozomi: Fix the error handling path of 'nozomi_card_init()'
	leds: class: The -ENOTSUPP should never be seen by user space
	leds: lm3532: select regmap I2C API
	leds: lm36274: Put fwnode in error case during ->probe()
	leds: lm3692x: Put fwnode in any case during ->probe()
	leds: lm3697: Don't spam logs when probe is deferred
	leds: lp50xx: Put fwnode in error case during ->probe()
	scsi: FlashPoint: Rename si_flags field
	scsi: iscsi: Flush block work before unblock
	mfd: mp2629: Select MFD_CORE to fix build error
	mfd: rn5t618: Fix IRQ trigger by changing it to level mode
	fsi: core: Fix return of error values on failures
	fsi: scom: Reset the FSI2PIB engine for any error
	fsi: occ: Don't accept response from un-initialized OCC
	fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE
	fsi/sbefifo: Fix reset timeout
	visorbus: fix error return code in visorchipset_init()
	iommu/amd: Fix extended features logging
	s390/irq: select HAVE_IRQ_EXIT_ON_IRQ_STACK
	s390: enable HAVE_IOREMAP_PROT
	s390: appldata depends on PROC_SYSCTL
	selftests: splice: Adjust for handler fallback removal
	iommu/dma: Fix IOVA reserve dma ranges
	ASoC: max98373-sdw: use first_hw_init flag on resume
	ASoC: rt1308-sdw: use first_hw_init flag on resume
	ASoC: rt5682-sdw: use first_hw_init flag on resume
	ASoC: rt700-sdw: use first_hw_init flag on resume
	ASoC: rt711-sdw: use first_hw_init flag on resume
	ASoC: rt715-sdw: use first_hw_init flag on resume
	ASoC: rt5682: fix getting the wrong device id when the suspend_stress_test
	ASoC: rt5682-sdw: set regcache_cache_only false before reading RT5682_DEVICE_ID
	ASoC: mediatek: mtk-btcvsd: Fix an error handling path in 'mtk_btcvsd_snd_probe()'
	usb: gadget: f_fs: Fix setting of device and driver data cross-references
	usb: dwc2: Don't reset the core after setting turnaround time
	eeprom: idt_89hpesx: Put fwnode in matching case during ->probe()
	eeprom: idt_89hpesx: Restore printing the unsupported fwnode name
	thunderbolt: Bond lanes only when dual_link_port != NULL in alloc_dev_default()
	iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	iio: magn: rm3100: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	iio: light: vcnl4000: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	ASoC: fsl_spdif: Fix error handler with pm_runtime_enable
	staging: gdm724x: check for buffer overflow in gdm_lte_multi_sdu_pkt()
	staging: gdm724x: check for overflow in gdm_lte_netif_rx()
	staging: rtl8712: fix error handling in r871xu_drv_init
	staging: rtl8712: fix memory leak in rtl871x_load_fw_cb
	coresight: core: Fix use of uninitialized pointer
	staging: mt7621-dts: fix pci address for PCI memory range
	serial: 8250: Actually allow UPF_MAGIC_MULTIPLIER baud rates
	iio: light: vcnl4035: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: isl29501: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK
	of: Fix truncation of memory sizes on 32-bit platforms
	mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
	habanalabs: Fix an error handling path in 'hl_pci_probe()'
	scsi: mpt3sas: Fix error return value in _scsih_expander_add()
	soundwire: stream: Fix test for DP prepare complete
	phy: uniphier-pcie: Fix updating phy parameters
	phy: ti: dm816x: Fix the error handling path in 'dm816x_usb_phy_probe()
	extcon: sm5502: Drop invalid register write in sm5502_reg_data
	extcon: max8997: Add missing modalias string
	powerpc/powernv: Fix machine check reporting of async store errors
	ASoC: atmel-i2s: Fix usage of capture and playback at the same time
	configfs: fix memleak in configfs_release_bin_file
	ASoC: Intel: sof_sdw: add SOF_RT715_DAI_ID_FIX for AlderLake
	ASoC: fsl_spdif: Fix unexpected interrupt after suspend
	leds: as3645a: Fix error return code in as3645a_parse_node()
	leds: ktd2692: Fix an error handling path
	selftests/ftrace: fix event-no-pid on 1-core machine
	serial: 8250: 8250_omap: Disable RX interrupt after DMA enable
	serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs
	powerpc: Offline CPU in stop_this_cpu()
	powerpc/papr_scm: Properly handle UUID types and API
	powerpc/64s: Fix copy-paste data exposure into newly created tasks
	powerpc/papr_scm: Make 'perf_stats' invisible if perf-stats unavailable
	ALSA: firewire-lib: Fix 'amdtp_domain_start()' when no AMDTP_OUT_STREAM stream is found
	serial: mvebu-uart: do not allow changing baudrate when uartclk is not available
	serial: mvebu-uart: correctly calculate minimal possible baudrate
	arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
	vfio/pci: Handle concurrent vma faults
	mm/pmem: avoid inserting hugepage PTE entry with fsdax if hugepage support is disabled
	mm/huge_memory.c: remove dedicated macro HPAGE_CACHE_INDEX_MASK
	mm/huge_memory.c: add missing read-only THP checking in transparent_hugepage_enabled()
	mm/huge_memory.c: don't discard hugepage if other processes are mapping it
	mm/hugetlb: use helper huge_page_order and pages_per_huge_page
	mm/hugetlb: remove redundant check in preparing and destroying gigantic page
	hugetlb: remove prep_compound_huge_page cleanup
	include/linux/huge_mm.h: remove extern keyword
	mm/z3fold: fix potential memory leak in z3fold_destroy_pool()
	mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page
	lib/math/rational.c: fix divide by zero
	selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random
	selftests/vm/pkeys: handle negative sys_pkey_alloc() return code
	selftests/vm/pkeys: refill shadow register after implicit kernel write
	perf llvm: Return -ENOMEM when asprintf() fails
	csky: fix syscache.c fallthrough warning
	csky: syscache: Fixup duplicate cache flush
	exfat: handle wrong stream entry size in exfat_readdir()
	scsi: fc: Correct RHBA attributes length
	scsi: target: cxgbit: Unmap DMA buffer before calling target_execute_cmd()
	mailbox: qcom-ipcc: Fix IPCC mbox channel exhaustion
	fscrypt: don't ignore minor_hash when hash is 0
	fscrypt: fix derivation of SipHash keys on big endian CPUs
	tpm: Replace WARN_ONCE() with dev_err_once() in tpm_tis_status()
	erofs: fix error return code in erofs_read_superblock()
	block: return the correct bvec when checking for gaps
	io_uring: fix blocking inline submission
	mmc: block: Disable CMDQ on the ioctl path
	mmc: vub3000: fix control-request direction
	media: exynos4-is: remove a now unused integer
	scsi: core: Retry I/O for Notify (Enable Spinup) Required error
	crypto: qce - fix error return code in qce_skcipher_async_req_handle()
	s390: preempt: Fix preempt_count initialization
	cred: add missing return error code when set_cred_ucounts() failed
	iommu/dma: Fix compile warning in 32-bit builds
	powerpc/preempt: Don't touch the idle task's preempt_count during hotplug
	Linux 5.10.50

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iec4eab24ea8eb5a6d79739a1aec8432d93a8f82c
2021-07-14 17:35:23 +02:00
Valentin Schneider
3c51d82d0b sched/core: Initialize the idle task with preemption disabled
[ Upstream commit f1a0a376ca0c4ef1fc3d24e3e502acbb5b795674 ]

As pointed out by commit

  de9b8f5dcb ("sched: Fix crash trying to dequeue/enqueue the idle thread")

init_idle() can and will be invoked more than once on the same idle
task. At boot time, it is invoked for the boot CPU thread by
sched_init(). Then smp_init() creates the threads for all the secondary
CPUs and invokes init_idle() on them.

As the hotplug machinery brings the secondaries to life, it will issue
calls to idle_thread_get(), which itself invokes init_idle() yet again.
In this case it's invoked twice more per secondary: at _cpu_up(), and at
bringup_cpu().

Given smp_init() already initializes the idle tasks for all *possible*
CPUs, no further initialization should be required. Now, removing
init_idle() from idle_thread_get() exposes some interesting expectations
with regards to the idle task's preempt_count: the secondary startup always
issues a preempt_disable(), requiring some reset of the preempt count to 0
between hot-unplug and hotplug, which is currently served by
idle_thread_get() -> idle_init().

Given the idle task is supposed to have preemption disabled once and never
see it re-enabled, it seems that what we actually want is to initialize its
preempt_count to PREEMPT_DISABLED and leave it there. Do that, and remove
init_idle() from idle_thread_get().

Secondary startups were patched via coccinelle:

  @begone@
  @@

  -preempt_disable();
  ...
  cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210512094636.2958515-1-valentin.schneider@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:55:50 +02:00
Alexey Gladkov
b2c4d9a33c Add a reference to ucounts for each cred
[ Upstream commit 905ae01c4ae2ae3df05bb141801b1db4b7d83c61 ]

For RLIMIT_NPROC and some other rlimits the user_struct that holds the
global limit is kept alive for the lifetime of a process by keeping it
in struct cred. Adding a pointer to ucounts in the struct cred will
allow to track RLIMIT_NPROC not only for user in the system, but for
user in the user_namespace.

Updating ucounts may require memory allocation which may fail. So, we
cannot change cred.ucounts in the commit_creds() because this function
cannot fail and it should always return 0. For this reason, we modify
cred.ucounts before calling the commit_creds().

Changelog

v6:
* Fix null-ptr-deref in is_ucounts_overlimit() detected by trinity. This
  error was caused by the fact that cred_alloc_blank() left the ucounts
  pointer empty.

Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Alexey Gladkov <legion@kernel.org>
Link: https://lkml.kernel.org/r/b37aaef28d8b9b0d757e07ba6dd27281bbe39259.1619094428.git.legion@kernel.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:55:48 +02:00
chunhui.li
9c2958f454 ANDROID: GKI: Export put_task_stack symbol
We need dump task->stack in kernel module for debug usage,
call try_get_task_stack to lock task->stack, and
try_get_task_stack/put_task_stack should call in pairs,
but put_task_stack is not exported

Bug: 192990535
Change-Id: Ifb2f3d16f93039bffeb3e822bc066e42e2d21d13
Signed-off-by: chunhui.li <chunhui.li@mediatek.com>
2021-07-14 09:14:16 +00:00
Jing-Ting Wu
5c51579fde ANDROID: fork: Export task_newtask tracepoint
android_rvh_sched_fork() and android_rvh_sched_fork_init()
already let us register probes during fork(), but those are
invoked *before* the new task is added to the tasklist, which
can lead to some undesired races when a module is trying to
initialize vendor-specific task_struct fields.

Export the task_newtask tracepoint to register probes to run
during fork() but *after* the task has been inserted into the
tasklist.

Bug: 192873984
Signed-off-by: Jing-Ting Wu <Jing-Ting.Wu@mediatek.com>
Cc: Valentin Schneider <valentin.schneider@arm.com>
Change-Id: Ifef14819264385b5e955a5966b4e4f66d50da5e3
2021-07-06 21:24:20 +00:00
Liangliang Li
f66d96b14a ANDROID: vendor_hooks: Add hooks to dup_task_struct
Add hook to dup_task_struct for vendor data fields initialisation.

Bug: 188004638

Change-Id: I4b58604ee822fb8d1e0cc37bec72e820e7318427
Signed-off-by: Liangliang Li <liliangliang@vivo.com>
2021-05-13 16:47:48 +00:00
lijianzhong
54f66141a8 ANDROID: sched: Add vendor hooks for sched.
Add vendor hooks in sched to support oem's feature.

Bug: 183674818

Signed-off-by: lijianzhong <lijianzhong@xiaomi.com>
Change-Id: I8415958749948b3702e411f835c227ad4f8d8e92
2021-04-23 18:42:38 -07:00
Greg Kroah-Hartman
b9a61f9a56 Merge 5.10.27 into android12-5.10
Changes in 5.10.27
	mm/memcg: rename mem_cgroup_split_huge_fixup to split_page_memcg and add nr_pages argument
	mm/memcg: set memcg when splitting page
	mt76: fix tx skb error handling in mt76_dma_tx_queue_skb
	net: stmmac: fix dma physical address of descriptor when display ring
	net: fec: ptp: avoid register access when ipg clock is disabled
	powerpc/4xx: Fix build errors from mfdcr()
	atm: eni: dont release is never initialized
	atm: lanai: dont run lanai_dev_close if not open
	Revert "r8152: adjust the settings about MAC clock speed down for RTL8153"
	ALSA: hda: ignore invalid NHLT table
	ixgbe: Fix memleak in ixgbe_configure_clsu32
	scsi: ufs: ufs-qcom: Disable interrupt in reset path
	blk-cgroup: Fix the recursive blkg rwstat
	net: tehuti: fix error return code in bdx_probe()
	net: intel: iavf: fix error return code of iavf_init_get_resources()
	sun/niu: fix wrong RXMAC_BC_FRM_CNT_COUNT count
	gianfar: fix jumbo packets+napi+rx overrun crash
	cifs: ask for more credit on async read/write code paths
	gfs2: fix use-after-free in trans_drain
	cpufreq: blacklist Arm Vexpress platforms in cpufreq-dt-platdev
	gpiolib: acpi: Add missing IRQF_ONESHOT
	nfs: fix PNFS_FLEXFILE_LAYOUT Kconfig default
	NFS: Correct size calculation for create reply length
	net: hisilicon: hns: fix error return code of hns_nic_clear_all_rx_fetch()
	net: wan: fix error return code of uhdlc_init()
	net: davicom: Use platform_get_irq_optional()
	net: enetc: set MAC RX FIFO to recommended value
	atm: uPD98402: fix incorrect allocation
	atm: idt77252: fix null-ptr-dereference
	cifs: change noisy error message to FYI
	irqchip/ingenic: Add support for the JZ4760
	kbuild: add image_name to no-sync-config-targets
	kbuild: dummy-tools: fix inverted tests for gcc
	umem: fix error return code in mm_pci_probe()
	sparc64: Fix opcode filtering in handling of no fault loads
	habanalabs: Call put_pid() when releasing control device
	staging: rtl8192e: fix kconfig dependency on CRYPTO
	u64_stats,lockdep: Fix u64_stats_init() vs lockdep
	kselftest: arm64: Fix exit code of sve-ptrace
	regulator: qcom-rpmh: Correct the pmic5_hfsmps515 buck
	block: Fix REQ_OP_ZONE_RESET_ALL handling
	drm/amd/display: Revert dram_clock_change_latency for DCN2.1
	drm/amdgpu: fb BO should be ttm_bo_type_device
	drm/radeon: fix AGP dependency
	nvme: simplify error logic in nvme_validate_ns()
	nvme: add NVME_REQ_CANCELLED flag in nvme_cancel_request()
	nvme-fc: set NVME_REQ_CANCELLED in nvme_fc_terminate_exchange()
	nvme-fc: return NVME_SC_HOST_ABORTED_CMD when a command has been aborted
	nvme-core: check ctrl css before setting up zns
	nvme-rdma: Fix a use after free in nvmet_rdma_write_data_done
	nvme-pci: add the DISABLE_WRITE_ZEROES quirk for a Samsung PM1725a
	nfs: we don't support removing system.nfs4_acl
	block: Suppress uevent for hidden device when removed
	mm/fork: clear PASID for new mm
	ia64: fix ia64_syscall_get_set_arguments() for break-based syscalls
	ia64: fix ptrace(PTRACE_SYSCALL_INFO_EXIT) sign
	static_call: Pull some static_call declarations to the type headers
	static_call: Allow module use without exposing static_call_key
	static_call: Fix the module key fixup
	static_call: Fix static_call_set_init()
	KVM: x86: Protect userspace MSR filter with SRCU, and set atomically-ish
	btrfs: fix sleep while in non-sleep context during qgroup removal
	selinux: don't log MAC_POLICY_LOAD record on failed policy load
	selinux: fix variable scope issue in live sidtab conversion
	netsec: restore phy power state after controller reset
	platform/x86: intel-vbtn: Stop reporting SW_DOCK events
	psample: Fix user API breakage
	z3fold: prevent reclaim/free race for headless pages
	squashfs: fix inode lookup sanity checks
	squashfs: fix xattr id and id lookup sanity checks
	hugetlb_cgroup: fix imbalanced css_get and css_put pair for shared mappings
	kasan: fix per-page tags for non-page_alloc pages
	gcov: fix clang-11+ support
	ACPI: video: Add missing callback back for Sony VPCEH3U1E
	ACPICA: Always create namespace nodes using acpi_ns_create_node()
	arm64: stacktrace: don't trace arch_stack_walk()
	arm64: dts: ls1046a: mark crypto engine dma coherent
	arm64: dts: ls1012a: mark crypto engine dma coherent
	arm64: dts: ls1043a: mark crypto engine dma coherent
	ARM: dts: at91: sam9x60: fix mux-mask for PA7 so it can be set to A, B and C
	ARM: dts: at91: sam9x60: fix mux-mask to match product's datasheet
	ARM: dts: at91-sama5d27_som1: fix phy address to 7
	integrity: double check iint_cache was initialized
	drm/etnaviv: Use FOLL_FORCE for userptr
	drm/amd/pm: workaround for audio noise issue
	drm/amdgpu/display: restore AUX_DPHY_TX_CONTROL for DCN2.x
	drm/amdgpu: Add additional Sienna Cichlid PCI ID
	drm/i915: Fix the GT fence revocation runtime PM logic
	dm verity: fix DM_VERITY_OPTS_MAX value
	dm ioctl: fix out of bounds array access when no devices
	bus: omap_l3_noc: mark l3 irqs as IRQF_NO_THREAD
	ARM: OMAP2+: Fix smartreflex init regression after dropping legacy data
	soc: ti: omap-prm: Fix occasional abort on reset deassert for dra7 iva
	veth: Store queue_mapping independently of XDP prog presence
	bpf: Change inode_storage's lookup_elem return value from NULL to -EBADF
	libbpf: Fix INSTALL flag order
	net/mlx5e: RX, Mind the MPWQE gaps when calculating offsets
	net/mlx5e: When changing XDP program without reset, take refs for XSK RQs
	net/mlx5e: Don't match on Geneve options in case option masks are all zero
	ipv6: fix suspecious RCU usage warning
	drop_monitor: Perform cleanup upon probe registration failure
	macvlan: macvlan_count_rx() needs to be aware of preemption
	net: sched: validate stab values
	net: dsa: bcm_sf2: Qualify phydev->dev_flags based on port
	igc: reinit_locked() should be called with rtnl_lock
	igc: Fix Pause Frame Advertising
	igc: Fix Supported Pause Frame Link Setting
	igc: Fix igc_ptp_rx_pktstamp()
	e1000e: add rtnl_lock() to e1000_reset_task
	e1000e: Fix error handling in e1000_set_d0_lplu_state_82571
	net/qlcnic: Fix a use after free in qlcnic_83xx_get_minidump_template
	net: phy: broadcom: Add power down exit reset state delay
	ftgmac100: Restart MAC HW once
	clk: qcom: gcc-sc7180: Use floor ops for the correct sdcc1 clk
	net: ipa: terminate message handler arrays
	net: qrtr: fix a kernel-infoleak in qrtr_recvmsg()
	flow_dissector: fix byteorder of dissected ICMP ID
	selftests/bpf: Set gopt opt_class to 0 if get tunnel opt failed
	netfilter: ctnetlink: fix dump of the expect mask attribute
	net: hdlc_x25: Prevent racing between "x25_close" and "x25_xmit"/"x25_rx"
	net: phylink: Fix phylink_err() function name error in phylink_major_config
	tipc: better validate user input in tipc_nl_retrieve_key()
	tcp: relookup sock for RST+ACK packets handled by obsolete req sock
	can: isotp: isotp_setsockopt(): only allow to set low level TX flags for CAN-FD
	can: isotp: TX-path: ensure that CAN frame flags are initialized
	can: peak_usb: add forgotten supported devices
	can: flexcan: flexcan_chip_freeze(): fix chip freeze for missing bitrate
	can: kvaser_pciefd: Always disable bus load reporting
	can: c_can_pci: c_can_pci_remove(): fix use-after-free
	can: c_can: move runtime PM enable/disable to c_can_platform
	can: m_can: m_can_do_rx_poll(): fix extraneous msg loss warning
	can: m_can: m_can_rx_peripheral(): fix RX being blocked by errors
	mac80211: fix rate mask reset
	mac80211: Allow HE operation to be longer than expected.
	selftests/net: fix warnings on reuseaddr_ports_exhausted
	nfp: flower: fix unsupported pre_tunnel flows
	nfp: flower: add ipv6 bit to pre_tunnel control message
	nfp: flower: fix pre_tun mask id allocation
	ftrace: Fix modify_ftrace_direct.
	drm/msm/dsi: fix check-before-set in the 7nm dsi_pll code
	ionic: linearize tso skb with too many frags
	net/sched: cls_flower: fix only mask bit check in the validate_ct_state
	netfilter: nftables: report EOPNOTSUPP on unsupported flowtable flags
	netfilter: nftables: allow to update flowtable flags
	netfilter: flowtable: Make sure GC works periodically in idle system
	libbpf: Fix error path in bpf_object__elf_init()
	libbpf: Use SOCK_CLOEXEC when opening the netlink socket
	ARM: dts: imx6ull: fix ubi filesystem mount failed
	ipv6: weaken the v4mapped source check
	octeontx2-af: Formatting debugfs entry rsrc_alloc.
	octeontx2-af: Modify default KEX profile to extract TX packet fields
	octeontx2-af: Remove TOS field from MKEX TX
	octeontx2-af: Fix irq free in rvu teardown
	octeontx2-pf: Clear RSS enable flag on interace down
	octeontx2-af: fix infinite loop in unmapping NPC counter
	net: check all name nodes in __dev_alloc_name
	net: cdc-phonet: fix data-interface release on probe failure
	igb: check timestamp validity
	r8152: limit the RX buffer size of RTL8153A for USB 2.0
	net: stmmac: dwmac-sun8i: Provide TX and RX fifo sizes
	selinux: vsock: Set SID for socket returned by accept()
	selftests: forwarding: vxlan_bridge_1d: Fix vxlan ecn decapsulate value
	libbpf: Fix BTF dump of pointer-to-array-of-struct
	bpf: Fix umd memory leak in copy_process()
	can: isotp: tx-path: zero initialize outgoing CAN frames
	drm/msm: fix shutdown hook in case GPU components failed to bind
	drm/msm: Fix suspend/resume on i.MX5
	arm64: kdump: update ppos when reading elfcorehdr
	PM: runtime: Defer suspending suppliers
	net/mlx5: Add back multicast stats for uplink representor
	net/mlx5e: Allow to match on MPLS parameters only for MPLS over UDP
	net/mlx5e: Offload tuple rewrite for non-CT flows
	net/mlx5e: Fix error path for ethtool set-priv-flag
	PM: EM: postpone creating the debugfs dir till fs_initcall
	net: bridge: don't notify switchdev for local FDB addresses
	octeontx2-af: Fix memory leak of object buf
	xen/x86: make XEN_BALLOON_MEMORY_HOTPLUG_LIMIT depend on MEMORY_HOTPLUG
	RDMA/cxgb4: Fix adapter LE hash errors while destroying ipv6 listening server
	bpf: Don't do bpf_cgroup_storage_set() for kuprobe/tp programs
	net: Consolidate common blackhole dst ops
	net, bpf: Fix ip6ip6 crash with collect_md populated skbs
	igb: avoid premature Rx buffer reuse
	net: axienet: Properly handle PCS/PMA PHY for 1000BaseX mode
	net: axienet: Fix probe error cleanup
	net: phy: introduce phydev->port
	net: phy: broadcom: Avoid forward for bcm54xx_config_clock_delay()
	net: phy: broadcom: Set proper 1000BaseX/SGMII interface mode for BCM54616S
	net: phy: broadcom: Fix RGMII delays for BCM50160 and BCM50610M
	Revert "netfilter: x_tables: Switch synchronization to RCU"
	netfilter: x_tables: Use correct memory barriers.
	dm table: Fix zoned model check and zone sectors check
	mm/mmu_notifiers: ensure range_end() is paired with range_start()
	Revert "netfilter: x_tables: Update remaining dereference to RCU"
	ACPI: scan: Rearrange memory allocation in acpi_device_add()
	ACPI: scan: Use unique number for instance_no
	perf auxtrace: Fix auxtrace queue conflict
	perf synthetic events: Avoid write of uninitialized memory when generating PERF_RECORD_MMAP* records
	io_uring: fix provide_buffers sign extension
	block: recalculate segment count for multi-segment discards correctly
	scsi: Revert "qla2xxx: Make sure that aborted commands are freed"
	scsi: qedi: Fix error return code of qedi_alloc_global_queues()
	scsi: mpt3sas: Fix error return code of mpt3sas_base_attach()
	smb3: fix cached file size problems in duplicate extents (reflink)
	cifs: Adjust key sizes and key generation routines for AES256 encryption
	locking/mutex: Fix non debug version of mutex_lock_io_nested()
	x86/mem_encrypt: Correct physical address calculation in __set_clr_pte_enc()
	mm/memcg: fix 5.10 backport of splitting page memcg
	fs/cachefiles: Remove wait_bit_key layout dependency
	ch_ktls: fix enum-conversion warning
	can: dev: Move device back to init netns on owning netns delete
	r8169: fix DMA being used after buffer free if WoL is enabled
	net: dsa: b53: VLAN filtering is global to all users
	mac80211: fix double free in ibss_leave
	ext4: add reclaim checks to xattr code
	fs/ext4: fix integer overflow in s_log_groups_per_flex
	Revert "xen: fix p2m size in dom0 for disabled memory hotplug case"
	Revert "net: bonding: fix error return code of bond_neigh_init()"
	nvme: fix the nsid value to print in nvme_validate_or_alloc_ns
	can: peak_usb: Revert "can: peak_usb: add forgotten supported devices"
	xen-blkback: don't leak persistent grants from xen_blkbk_map()
	Linux 5.10.27

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7eafe976fd6bf33db6db4adb8ebf2ff087294a23
2021-04-02 15:25:50 +02:00
Fenghua Yu
7077d5e7f0 mm/fork: clear PASID for new mm
[ Upstream commit 82e69a121be4b1597ce758534816a8ee04c8b761 ]

When a new mm is created, its PASID should be cleared, i.e.  the PASID is
initialized to its init state 0 on both ARM and X86.

This patch was part of the series introducing mm->pasid, but got lost
along the way [1].  It still makes sense to have it, because each address
space has a different PASID.  And the IOMMU code in
iommu_sva_alloc_pasid() expects the pasid field of a new mm struct to be
cleared.

[1] https://lore.kernel.org/linux-iommu/YDgh53AcQHT+T3L0@otcwcpicx3.sc.intel.com/

Link: https://lkml.kernel.org/r/20210302103837.2562625-1-jean-philippe@linaro.org
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Cc: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-30 14:31:52 +02:00
Laurent Dufour
5eca9e121f FROMLIST: mm: protect against PTE changes done by dup_mmap()
Vinayak Menon and Ganesh Mahendran reported that the following scenario may
lead to thread being blocked due to data corruption:

    CPU 1                   CPU 2                    CPU 3
    Process 1,              Process 1,               Process 1,
    Thread A                Thread B                 Thread C

    while (1) {             while (1) {              while(1) {
    pthread_mutex_lock(l)   pthread_mutex_lock(l)    fork
    pthread_mutex_unlock(l) pthread_mutex_unlock(l)  }
    }                       }

In the details this happens because :

    CPU 1                CPU 2                       CPU 3
    fork()
    copy_pte_range()
      set PTE rdonly
    got to next VMA...
     .                   PTE is seen rdonly          PTE still writable
     .                   thread is writing to page
     .                   -> page fault
     .                     copy the page             Thread writes to page
     .                      .                        -> no page fault
     .                     update the PTE
     .                     flush TLB for that PTE
   flush TLB                                        PTE are now rdonly

So the write done by the CPU 3 is interfering with the page copy operation
done by CPU 2, leading to the data corruption.

To avoid this we mark all the VMA involved in the COW mechanism as changing
by calling vm_write_begin(). This ensures that the speculative page fault
handler will not try to handle a fault on these pages.
The marker is set until the TLB is flushed, ensuring that all the CPUs will
now see the PTE as not writable.
Once the TLB is flush, the marker is removed by calling vm_write_end().

The variable last is used to keep tracked of the latest VMA marked to
handle the error path where part of the VMA may have been marked.

Change-Id: I3fe07109e27d8f77c9b435053567fe5c287703aa
Reported-by: Ganesh Mahendran <opensource.ganesh@gmail.com>
Reported-by: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Link: https://www.spinics.net/lists/linux-mm/msg171207.html
Bug: 161210518
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
2021-01-22 18:02:09 +00:00
Laurent Dufour
6d8fc36d9e FROMLIST: mm: protect mm_rb tree with a rwlock
This change is inspired by the Peter's proposal patch [1] which was
protecting the VMA using SRCU. Unfortunately, SRCU is not scaling well in
that particular case, and it is introducing major performance degradation
due to excessive scheduling operations.

To allow access to the mm_rb tree without grabbing the mmap_sem, this patch
is protecting it access using a rwlock.  As the mm_rb tree is a O(log n)
search it is safe to protect it using such a lock.  The VMA cache is not
protected by the new rwlock and it should not be used without holding the
mmap_sem.

To allow the picked VMA structure to be used once the rwlock is released, a
use count is added to the VMA structure. When the VMA is allocated it is
set to 1.  Each time the VMA is picked with the rwlock held its use count
is incremented. Each time the VMA is released it is decremented. When the
use count hits zero, this means that the VMA is no more used and should be
freed.

This patch is preparing for 2 kind of VMA access :
 - as usual, under the control of the mmap_sem,
 - without holding the mmap_sem for the speculative page fault handler.

Access done under the control the mmap_sem doesn't require to grab the
rwlock to protect read access to the mm_rb tree, but access in write must
be done under the protection of the rwlock too. This affects inserting and
removing of elements in the RB tree.

The patch is introducing 2 new functions:
 - vma_get() to find a VMA based on an address by holding the new rwlock.
 - vma_put() to release the VMA when its no more used.
These services are designed to be used when access are made to the RB tree
without holding the mmap_sem.

When a VMA is removed from the RB tree, its vma->vm_rb field is cleared and
we rely on the WMB done when releasing the rwlock to serialize the write
with the RMB done in a later patch to check for the VMA's validity.

When free_vma is called, the file associated with the VMA is closed
immediately, but the policy and the file structure remained in used until
the VMA's use count reach 0, which may happens later when exiting an
in progress speculative page fault.

[1] https://patchwork.kernel.org/patch/5108281/

Change-Id: I9ecc922b8efa4b28975cc6a8e9531284c24ac14e
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Link: https://lore.kernel.org/lkml/1523975611-15978-18-git-send-email-ldufour@linux.vnet.ibm.com/
Bug: 161210518
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
2021-01-22 18:00:57 +00:00
Laurent Dufour
0076600734 FROMLIST: mm: introduce INIT_VMA()
Some VMA struct fields need to be initialized once the VMA structure is
allocated.
Currently this only concerns anon_vma_chain field but some other will be
added to support the speculative page fault.

Instead of spreading the initialization calls all over the code, let's
introduce a dedicated inline function.

Change-Id: I9f6b29dc74055354318b548e2b6b22c37d4c61bb
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Link: https://lore.kernel.org/lkml/1523975611-15978-8-git-send-email-ldufour@linux.vnet.ibm.com/
Bug: 161210518
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
2021-01-22 17:59:31 +00:00
Andrey Konovalov
37f77a6fb3 UPSTREAM: kasan: rename (un)poison_shadow to (un)poison_range
[ Upstream commit cebd0eb29acdfc2f5e44e5f356ffcd0c44f16b4a ]

This is a preparatory commit for the upcoming addition of a new hardware
tag-based (MTE-based) KASAN mode.

The new mode won't be using shadow memory.  Rename external annotation
kasan_unpoison_shadow() to kasan_unpoison_range(), and introduce internal
functions (un)poison_range() (without kasan_ prefix).

Co-developed-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/fccdcaa13dc6b2211bf363d6c6d499279a54fe3a.1606161801.git.andreyknvl@google.com
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 172318110
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Change-Id: If25b1b58a3a38a2643367a165e1c9bbd69d42455
2021-01-19 21:47:27 -08:00
Greg Kroah-Hartman
0290a41d05 Merge 5.10.6 into android12-5.10
Changes in 5.10.6
	Revert "drm/amd/display: Fix memory leaks in S3 resume"
	Revert "mtd: spinand: Fix OOB read"
	rtc: pcf2127: move watchdog initialisation to a separate function
	rtc: pcf2127: only use watchdog when explicitly available
	dt-bindings: rtc: add reset-source property
	kdev_t: always inline major/minor helper functions
	Bluetooth: Fix attempting to set RPA timeout when unsupported
	ALSA: hda/realtek - Modify Dell platform name
	ALSA: hda/hdmi: Fix incorrect mutex unlock in silent_stream_disable()
	drm/i915/tgl: Fix Combo PHY DPLL fractional divider for 38.4MHz ref clock
	scsi: ufs: Allow an error return value from ->device_reset()
	scsi: ufs: Re-enable WriteBooster after device reset
	RDMA/core: remove use of dma_virt_ops
	RDMA/siw,rxe: Make emulated devices virtual in the device tree
	fuse: fix bad inode
	perf: Break deadlock involving exec_update_mutex
	rwsem: Implement down_read_killable_nested
	rwsem: Implement down_read_interruptible
	exec: Transform exec_update_mutex into a rw_semaphore
	mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start
	Linux 5.10.6

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id4c57a151a1e8f2162163d2337b6055f04edbe9b
2021-01-13 10:28:55 +01:00
Eric W. Biederman
ab7709b551 exec: Transform exec_update_mutex into a rw_semaphore
[ Upstream commit f7cfd871ae0c5008d94b6f66834e7845caa93c15 ]

Recently syzbot reported[0] that there is a deadlock amongst the users
of exec_update_mutex.  The problematic lock ordering found by lockdep
was:

   perf_event_open  (exec_update_mutex -> ovl_i_mutex)
   chown            (ovl_i_mutex       -> sb_writes)
   sendfile         (sb_writes         -> p->lock)
     by reading from a proc file and writing to overlayfs
   proc_pid_syscall (p->lock           -> exec_update_mutex)

While looking at possible solutions it occured to me that all of the
users and possible users involved only wanted to state of the given
process to remain the same.  They are all readers.  The only writer is
exec.

There is no reason for readers to block on each other.  So fix
this deadlock by transforming exec_update_mutex into a rw_semaphore
named exec_update_lock that only exec takes for writing.

Cc: Jann Horn <jannh@google.com>
Cc: Vasiliy Kulikov <segoon@openwall.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Bernd Edlinger <bernd.edlinger@hotmail.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Christopher Yeoh <cyeoh@au1.ibm.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Sargun Dhillon <sargun@sargun.me>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Fixes: eea9673250 ("exec: Add exec_update_mutex to replace cred_guard_mutex")
[0] https://lkml.kernel.org/r/00000000000063640c05ade8e3de@google.com
Reported-by: syzbot+db9cdf3dd1f64252c6ef@syzkaller.appspotmail.com
Link: https://lkml.kernel.org/r/87ft4mbqen.fsf@x220.int.ebiederm.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-09 13:46:24 +01:00
Greg Kroah-Hartman
19057a6a6b Merge 5.10.4 into android12-5.10
Changes in 5.10.4
	hwmon: (k10temp) Remove support for displaying voltage and current on Zen CPUs
	drm/gma500: fix double free of gma_connector
	iio: adc: at91_adc: add Kconfig dep on the OF symbol and remove of_match_ptr()
	drm/aspeed: Fix Kconfig warning & subsequent build errors
	drm/mcde: Fix handling of platform_get_irq() error
	drm/tve200: Fix handling of platform_get_irq() error
	arm64: dts: renesas: hihope-rzg2-ex: Drop rxc-skew-ps from ethernet-phy node
	arm64: dts: renesas: cat875: Remove rxc-skew-ps from ethernet-phy node
	soc: renesas: rmobile-sysc: Fix some leaks in rmobile_init_pm_domains()
	soc: mediatek: Check if power domains can be powered on at boot time
	arm64: dts: mediatek: mt8183: fix gce incorrect mbox-cells value
	arm64: dts: ipq6018: update the reserved-memory node
	arm64: dts: qcom: sc7180: Fix one forgotten interconnect reference
	soc: qcom: geni: More properly switch to DMA mode
	Revert "i2c: i2c-qcom-geni: Fix DMA transfer race"
	RDMA/bnxt_re: Set queue pair state when being queried
	rtc: pcf2127: fix pcf2127_nvmem_read/write() returns
	RDMA/bnxt_re: Fix entry size during SRQ create
	selinux: fix error initialization in inode_doinit_with_dentry()
	ARM: dts: aspeed-g6: Fix the GPIO memory size
	ARM: dts: aspeed: s2600wf: Fix VGA memory region location
	RDMA/core: Fix error return in _ib_modify_qp()
	RDMA/rxe: Compute PSN windows correctly
	x86/mm/ident_map: Check for errors from ident_pud_init()
	ARM: p2v: fix handling of LPAE translation in BE mode
	RDMA/rtrs-clt: Remove destroy_con_cq_qp in case route resolving failed
	RDMA/rtrs-clt: Missing error from rtrs_rdma_conn_established
	RDMA/rtrs-srv: Don't guard the whole __alloc_srv with srv_mutex
	x86/apic: Fix x2apic enablement without interrupt remapping
	ASoC: qcom: fix unsigned int bitwidth compared to less than zero
	sched/deadline: Fix sched_dl_global_validate()
	sched: Reenable interrupts in do_sched_yield()
	drm/amdgpu: fix incorrect enum type
	crypto: talitos - Endianess in current_desc_hdr()
	crypto: talitos - Fix return type of current_desc_hdr()
	crypto: inside-secure - Fix sizeof() mismatch
	ASoC: sun4i-i2s: Fix lrck_period computation for I2S justified mode
	drm/msm: Add missing stub definition
	ARM: dts: aspeed: tiogapass: Remove vuart
	drm/amdgpu: fix build_coefficients() argument
	powerpc/64: Set up a kernel stack for secondaries before cpu_restore()
	spi: img-spfi: fix reference leak in img_spfi_resume
	f2fs: call f2fs_get_meta_page_retry for nat page
	RDMA/mlx5: Fix corruption of reg_pages in mlx5_ib_rereg_user_mr()
	perf test: Use generic event for expand_libpfm_events()
	drm/msm/dp: DisplayPort PHY compliance tests fixup
	drm/msm/dsi_pll_7nm: restore VCO rate during restore_state
	drm/msm/dsi_pll_10nm: restore VCO rate during restore_state
	drm/msm/dpu: fix clock scaling on non-sc7180 board
	spi: spi-mem: fix reference leak in spi_mem_access_start
	scsi: aacraid: Improve compat_ioctl handlers
	pinctrl: core: Add missing #ifdef CONFIG_GPIOLIB
	ASoC: pcm: DRAIN support reactivation
	drm/bridge: tpd12s015: Fix irq registering in tpd12s015_probe
	crypto: arm64/poly1305-neon - reorder PAC authentication with SP update
	crypto: arm/aes-neonbs - fix usage of cbc(aes) fallback
	crypto: caam - fix printing on xts fallback allocation error path
	selinux: fix inode_doinit_with_dentry() LABEL_INVALID error handling
	nl80211/cfg80211: fix potential infinite loop
	spi: stm32: fix reference leak in stm32_spi_resume
	bpf: Fix tests for local_storage
	x86/mce: Correct the detection of invalid notifier priorities
	drm/edid: Fix uninitialized variable in drm_cvt_modes()
	ath11k: Initialize complete alpha2 for regulatory change
	ath11k: Fix number of rules in filtered ETSI regdomain
	ath11k: fix wmi init configuration
	brcmfmac: Fix memory leak for unpaired brcmf_{alloc/free}
	arm64: dts: exynos: Include common syscon restart/poweroff for Exynos7
	arm64: dts: exynos: Correct psci compatible used on Exynos7
	drm/panel: simple: Add flags to boe_nv133fhm_n61
	Bluetooth: Fix null pointer dereference in hci_event_packet()
	Bluetooth: Fix: LL PRivacy BLE device fails to connect
	Bluetooth: hci_h5: fix memory leak in h5_close
	spi: stm32-qspi: fix reference leak in stm32 qspi operations
	spi: spi-ti-qspi: fix reference leak in ti_qspi_setup
	spi: mt7621: fix missing clk_disable_unprepare() on error in mt7621_spi_probe
	spi: tegra20-slink: fix reference leak in slink ops of tegra20
	spi: tegra20-sflash: fix reference leak in tegra_sflash_resume
	spi: tegra114: fix reference leak in tegra spi ops
	spi: bcm63xx-hsspi: fix missing clk_disable_unprepare() on error in bcm63xx_hsspi_resume
	spi: imx: fix reference leak in two imx operations
	ASoC: qcom: common: Fix refcounting in qcom_snd_parse_of()
	ath11k: Handle errors if peer creation fails
	mwifiex: fix mwifiex_shutdown_sw() causing sw reset failure
	drm/msm/a6xx: Clear shadow on suspend
	drm/msm/a5xx: Clear shadow on suspend
	firmware: tegra: fix strncpy()/strncat() confusion
	drm/msm/dp: return correct connection status after suspend
	drm/msm/dp: skip checking LINK_STATUS_UPDATED bit
	drm/msm/dp: do not notify audio subsystem if sink doesn't support audio
	selftests/run_kselftest.sh: fix dry-run typo
	selftest/bpf: Add missed ip6ip6 test back
	ASoC: wm8994: Fix PM disable depth imbalance on error
	ASoC: wm8998: Fix PM disable depth imbalance on error
	spi: sprd: fix reference leak in sprd_spi_remove
	virtiofs fix leak in setup
	ASoC: arizona: Fix a wrong free in wm8997_probe
	RDMa/mthca: Work around -Wenum-conversion warning
	ASoC: SOF: Intel: fix Kconfig dependency for SND_INTEL_DSP_CONFIG
	arm64: dts: ti: k3-am65*/j721e*: Fix unit address format error for dss node
	MIPS: BCM47XX: fix kconfig dependency bug for BCM47XX_BCMA
	drm/amdgpu: fix compute queue priority if num_kcq is less than 4
	soc: ti: omap-prm: Do not check rstst bit on deassert if already deasserted
	crypto: Kconfig - CRYPTO_MANAGER_EXTRA_TESTS requires the manager
	crypto: qat - fix status check in qat_hal_put_rel_rd_xfer()
	firmware: arm_scmi: Fix missing destroy_workqueue()
	drm/udl: Fix missing error code in udl_handle_damage()
	staging: greybus: codecs: Fix reference counter leak in error handling
	staging: gasket: interrupt: fix the missed eventfd_ctx_put() in gasket_interrupt.c
	scripts: kernel-doc: Restore anonymous enum parsing
	drm/amdkfd: Put ACPI table after using it
	ionic: use mc sync for multicast filters
	ionic: flatten calls to ionic_lif_rx_mode
	ionic: change set_rx_mode from_ndo to can_sleep
	media: tm6000: Fix sizeof() mismatches
	media: platform: add missing put_device() call in mtk_jpeg_clk_init()
	media: mtk-vcodec: add missing put_device() call in mtk_vcodec_init_dec_pm()
	media: mtk-vcodec: add missing put_device() call in mtk_vcodec_release_dec_pm()
	media: mtk-vcodec: add missing put_device() call in mtk_vcodec_init_enc_pm()
	media: v4l2-fwnode: Return -EINVAL for invalid bus-type
	media: v4l2-fwnode: v4l2_fwnode_endpoint_parse caller must init vep argument
	media: ov5640: fix support of BT656 bus mode
	media: staging: rkisp1: cap: fix runtime PM imbalance on error
	media: cedrus: fix reference leak in cedrus_start_streaming
	media: platform: add missing put_device() call in mtk_jpeg_probe() and mtk_jpeg_remove()
	media: venus: core: change clk enable and disable order in resume and suspend
	media: venus: core: vote for video-mem path
	media: venus: core: vote with average bandwidth and peak bandwidth as zero
	RDMA/cma: Add missing error handling of listen_id
	ASoC: meson: fix COMPILE_TEST error
	spi: dw: fix build error by selecting MULTIPLEXER
	scsi: core: Fix VPD LUN ID designator priorities
	media: venus: put dummy vote on video-mem path after last session release
	media: solo6x10: fix missing snd_card_free in error handling case
	video: fbdev: atmel_lcdfb: fix return error code in atmel_lcdfb_of_init()
	mmc: sdhci: tegra: fix wrong unit with busy_timeout
	drm/omap: dmm_tiler: fix return error code in omap_dmm_probe()
	drm/meson: Free RDMA resources after tearing down DRM
	drm/meson: Unbind all connectors on module removal
	drm/meson: dw-hdmi: Register a callback to disable the regulator
	drm/meson: dw-hdmi: Ensure that clocks are enabled before touching the TOP registers
	ASoC: intel: SND_SOC_INTEL_KEEMBAY should depend on ARCH_KEEMBAY
	iommu/vt-d: include conditionally on CONFIG_INTEL_IOMMU_SVM
	Input: ads7846 - fix race that causes missing releases
	Input: ads7846 - fix integer overflow on Rt calculation
	Input: ads7846 - fix unaligned access on 7845
	bus: mhi: core: Remove double locking from mhi_driver_remove()
	bus: mhi: core: Fix null pointer access when parsing MHI configuration
	usb/max3421: fix return error code in max3421_probe()
	spi: mxs: fix reference leak in mxs_spi_probe
	selftests/bpf: Fix broken riscv build
	powerpc: Avoid broken GCC __attribute__((optimize))
	powerpc/feature: Fix CPU_FTRS_ALWAYS by removing CPU_FTRS_GENERIC_32
	ARM: dts: tacoma: Fix node vs reg mismatch for flash memory
	Revert "powerpc/pseries/hotplug-cpu: Remove double free in error path"
	powerpc/powernv/sriov: fix unsigned int win compared to less than zero
	mfd: htc-i2cpld: Add the missed i2c_put_adapter() in htcpld_register_chip_i2c()
	mfd: MFD_SL28CPLD should depend on ARCH_LAYERSCAPE
	mfd: stmfx: Fix dev_err_probe() call in stmfx_chip_init()
	mfd: cpcap: Fix interrupt regression with regmap clear_ack
	EDAC/mce_amd: Use struct cpuinfo_x86.cpu_die_id for AMD NodeId
	scsi: ufs: Avoid to call REQ_CLKS_OFF to CLKS_OFF
	scsi: ufs: Fix clkgating on/off
	rcu: Allow rcu_irq_enter_check_tick() from NMI
	rcu,ftrace: Fix ftrace recursion
	rcu/tree: Defer kvfree_rcu() allocation to a clean context
	crypto: crypto4xx - Replace bitwise OR with logical OR in crypto4xx_build_pd
	crypto: omap-aes - Fix PM disable depth imbalance in omap_aes_probe
	crypto: sun8i-ce - fix two error path's memory leak
	spi: fix resource leak for drivers without .remove callback
	drm/meson: dw-hdmi: Disable clocks on driver teardown
	drm/meson: dw-hdmi: Enable the iahb clock early enough
	PCI: Disable MSI for Pericom PCIe-USB adapter
	PCI: brcmstb: Initialize "tmp" before use
	soc: ti: knav_qmss: fix reference leak in knav_queue_probe
	soc: ti: Fix reference imbalance in knav_dma_probe
	drivers: soc: ti: knav_qmss_queue: Fix error return code in knav_queue_probe
	soc: qcom: initialize local variable
	arm64: dts: qcom: sm8250: correct compatible for sm8250-mtp
	arm64: dts: qcom: msm8916-samsung-a2015: Disable muic i2c pin bias
	Input: omap4-keypad - fix runtime PM error handling
	clk: meson: Kconfig: fix dependency for G12A
	staging: mfd: hi6421-spmi-pmic: fix error return code in hi6421_spmi_pmic_probe()
	ath11k: Fix the rx_filter flag setting for peer rssi stats
	RDMA/cxgb4: Validate the number of CQEs
	soundwire: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute
	pinctrl: sunxi: fix irq bank map for the Allwinner A100 pin controller
	memstick: fix a double-free bug in memstick_check
	ARM: dts: at91: sam9x60: add pincontrol for USB Host
	ARM: dts: at91: sama5d4_xplained: add pincontrol for USB Host
	ARM: dts: at91: sama5d3_xplained: add pincontrol for USB Host
	mmc: pxamci: Fix error return code in pxamci_probe
	brcmfmac: fix error return code in brcmf_cfg80211_connect()
	orinoco: Move context allocation after processing the skb
	qtnfmac: fix error return code in qtnf_pcie_probe()
	rsi: fix error return code in rsi_reset_card()
	cw1200: fix missing destroy_workqueue() on error in cw1200_init_common
	dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe()
	arm64: dts: qcom: sdm845: Limit ipa iommu streams
	leds: netxbig: add missing put_device() call in netxbig_leds_get_of_pdata()
	leds: lp50xx: Fix an error handling path in 'lp50xx_probe_dt()'
	leds: turris-omnia: check for LED_COLOR_ID_RGB instead LED_COLOR_ID_MULTI
	arm64: tegra: Fix DT binding for IO High Voltage entry
	RDMA/cma: Fix deadlock on &lock in rdma_cma_listen_on_all() error unwind
	soundwire: qcom: Fix build failure when slimbus is module
	drm/imx/dcss: fix rotations for Vivante tiled formats
	media: siano: fix memory leak of debugfs members in smsdvb_hotplug
	platform/x86: mlx-platform: Remove PSU EEPROM from default platform configuration
	platform/x86: mlx-platform: Remove PSU EEPROM from MSN274x platform configuration
	arm64: dts: qcom: sc7180: limit IPA iommu streams
	RDMA/hns: Only record vlan info for HIP08
	RDMA/hns: Fix missing fields in address vector
	RDMA/hns: Avoid setting loopback indicator when smac is same as dmac
	serial: 8250-mtk: Fix reference leak in mtk8250_probe
	samples: bpf: Fix lwt_len_hist reusing previous BPF map
	media: imx214: Fix stop streaming
	mips: cdmm: fix use-after-free in mips_cdmm_bus_discover
	media: max2175: fix max2175_set_csm_mode() error code
	slimbus: qcom-ngd-ctrl: Avoid sending power requests without QMI
	RDMA/core: Track device memory MRs
	drm/mediatek: Use correct aliases name for ovl
	HSI: omap_ssi: Don't jump to free ID in ssi_add_controller()
	ARM: dts: Remove non-existent i2c1 from 98dx3236
	arm64: dts: armada-3720-turris-mox: update ethernet-phy handle name
	power: supply: bq25890: Use the correct range for IILIM register
	arm64: dts: rockchip: Set dr_mode to "host" for OTG on rk3328-roc-cc
	power: supply: max17042_battery: Fix current_{avg,now} hiding with no current sense
	power: supply: axp288_charger: Fix HP Pavilion x2 10 DMI matching
	power: supply: bq24190_charger: fix reference leak
	genirq/irqdomain: Don't try to free an interrupt that has no mapping
	arm64: dts: ls1028a: fix ENETC PTP clock input
	arm64: dts: ls1028a: fix FlexSPI clock input
	arm64: dts: freescale: sl28: combine SPI MTD partitions
	phy: tegra: xusb: Fix usb_phy device driver field
	arm64: dts: qcom: c630: Polish i2c-hid devices
	arm64: dts: qcom: c630: Fix pinctrl pins properties
	PCI: Bounds-check command-line resource alignment requests
	PCI: Fix overflow in command-line resource alignment requests
	PCI: iproc: Fix out-of-bound array accesses
	PCI: iproc: Invalidate correct PAXB inbound windows
	arm64: dts: meson: fix spi-max-frequency on Khadas VIM2
	arm64: dts: meson-sm1: fix typo in opp table
	soc: amlogic: canvas: add missing put_device() call in meson_canvas_get()
	scsi: hisi_sas: Fix up probe error handling for v3 hw
	scsi: pm80xx: Do not sleep in atomic context
	spi: spi-fsl-dspi: Use max_native_cs instead of num_chipselect to set SPI_MCR
	ARM: dts: at91: at91sam9rl: fix ADC triggers
	RDMA/hns: Fix 0-length sge calculation error
	RDMA/hns: Bugfix for calculation of extended sge
	mailbox: arm_mhu_db: Fix mhu_db_shutdown by replacing kfree with devm_kfree
	soundwire: master: use pm_runtime_set_active() on add
	platform/x86: dell-smbios-base: Fix error return code in dell_smbios_init
	ASoC: Intel: Boards: tgl_max98373: update TDM slot_width
	media: max9271: Fix GPIO enable/disable
	media: rdacm20: Enable GPIO1 explicitly
	media: i2c: imx219: Selection compliance fixes
	ath11k: Don't cast ath11k_skb_cb to ieee80211_tx_info.control
	ath11k: Reset ath11k_skb_cb before setting new flags
	ath11k: Fix an error handling path
	ath10k: Fix the parsing error in service available event
	ath10k: Fix an error handling path
	ath10k: Release some resources in an error handling path
	SUNRPC: rpc_wake_up() should wake up tasks in the correct order
	NFSv4.2: condition READDIR's mask for security label based on LSM state
	SUNRPC: xprt_load_transport() needs to support the netid "rdma6"
	NFSv4: Fix the alignment of page data in the getdeviceinfo reply
	net: sunrpc: Fix 'snprintf' return value check in 'do_xprt_debugfs'
	lockd: don't use interval-based rebinding over TCP
	NFS: switch nfsiod to be an UNBOUND workqueue.
	selftests/seccomp: Update kernel config
	vfio-pci: Use io_remap_pfn_range() for PCI IO memory
	hwmon: (ina3221) Fix PM usage counter unbalance in ina3221_write_enable
	f2fs: fix double free of unicode map
	media: tvp5150: Fix wrong return value of tvp5150_parse_dt()
	media: saa7146: fix array overflow in vidioc_s_audio()
	powerpc/perf: Fix crash with is_sier_available when pmu is not set
	powerpc/64: Fix an EMIT_BUG_ENTRY in head_64.S
	powerpc/xmon: Fix build failure for 8xx
	powerpc/perf: Fix to update radix_scope_qual in power10
	powerpc/perf: Update the PMU group constraints for l2l3 events in power10
	powerpc/perf: Fix the PMU group constraints for threshold events in power10
	clocksource/drivers/orion: Add missing clk_disable_unprepare() on error path
	clocksource/drivers/cadence_ttc: Fix memory leak in ttc_setup_clockevent()
	clocksource/drivers/ingenic: Fix section mismatch
	clocksource/drivers/riscv: Make RISCV_TIMER depends on RISCV_SBI
	arm64: mte: fix prctl(PR_GET_TAGGED_ADDR_CTRL) if TCF0=NONE
	iio: hrtimer-trigger: Mark hrtimer to expire in hard interrupt context
	libbpf: Sanitise map names before pinning
	ARM: dts: at91: sam9x60ek: remove bypass property
	ARM: dts: at91: sama5d2: map securam as device
	scripts: kernel-doc: fix parsing function-like typedefs
	bpf: Fix bpf_put_raw_tracepoint()'s use of __module_address()
	selftests/bpf: Fix invalid use of strncat in test_sockmap
	pinctrl: falcon: add missing put_device() call in pinctrl_falcon_probe()
	soc: rockchip: io-domain: Fix error return code in rockchip_iodomain_probe()
	arm64: dts: rockchip: Fix UART pull-ups on rk3328
	memstick: r592: Fix error return in r592_probe()
	MIPS: Don't round up kernel sections size for memblock_add()
	mt76: mt7663s: fix a possible ple quota underflow
	mt76: mt7915: set fops_sta_stats.owner to THIS_MODULE
	mt76: set fops_tx_stats.owner to THIS_MODULE
	mt76: dma: fix possible deadlock running mt76_dma_cleanup
	net/mlx5: Properly convey driver version to firmware
	mt76: fix memory leak if device probing fails
	mt76: fix tkip configuration for mt7615/7663 devices
	ASoC: jz4740-i2s: add missed checks for clk_get()
	ASoC: q6afe-clocks: Add missing parent clock rate
	dm ioctl: fix error return code in target_message
	ASoC: cros_ec_codec: fix uninitialized memory read
	ASoC: atmel: mchp-spdifrx needs COMMON_CLK
	ASoC: qcom: fix QDSP6 dependencies, attempt #3
	phy: mediatek: allow compile-testing the hdmi phy
	phy: renesas: rcar-gen3-usb2: disable runtime pm in case of failure
	memory: ti-emif-sram: only build for ARMv7
	memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()
	drm/msm: a5xx: Make preemption reset case reentrant
	drm/msm: add IOMMU_SUPPORT dependency
	clocksource/drivers/arm_arch_timer: Use stable count reader in erratum sne
	clocksource/drivers/arm_arch_timer: Correct fault programming of CNTKCTL_EL1.EVNTI
	cpufreq: ap806: Add missing MODULE_DEVICE_TABLE
	cpufreq: highbank: Add missing MODULE_DEVICE_TABLE
	cpufreq: mediatek: Add missing MODULE_DEVICE_TABLE
	cpufreq: qcom: Add missing MODULE_DEVICE_TABLE
	cpufreq: st: Add missing MODULE_DEVICE_TABLE
	cpufreq: sun50i: Add missing MODULE_DEVICE_TABLE
	cpufreq: loongson1: Add missing MODULE_ALIAS
	cpufreq: scpi: Add missing MODULE_ALIAS
	cpufreq: vexpress-spc: Add missing MODULE_ALIAS
	cpufreq: imx: fix NVMEM_IMX_OCOTP dependency
	macintosh/adb-iop: Always wait for reply message from IOP
	macintosh/adb-iop: Send correct poll command
	staging: bcm2835: fix vchiq_mmal dependencies
	staging: greybus: audio: Fix possible leak free widgets in gbaudio_dapm_free_controls
	spi: dw: Fix error return code in dw_spi_bt1_probe()
	Bluetooth: btusb: Add the missed release_firmware() in btusb_mtk_setup_firmware()
	Bluetooth: btmtksdio: Add the missed release_firmware() in mtk_setup_firmware()
	Bluetooth: sco: Fix crash when using BT_SNDMTU/BT_RCVMTU option
	block/rnbd-clt: Dynamically alloc buffer for pathname & blk_symlink_name
	block/rnbd: fix a null pointer dereference on dev->blk_symlink_name
	Bluetooth: btusb: Fix detection of some fake CSR controllers with a bcdDevice val of 0x0134
	platform/x86: intel-vbtn: Fix SW_TABLET_MODE always reporting 1 on some HP x360 models
	adm8211: fix error return code in adm8211_probe()
	mtd: spi-nor: sst: fix BPn bits for the SST25VF064C
	mtd: spi-nor: ignore errors in spi_nor_unlock_all()
	mtd: spi-nor: atmel: remove global protection flag
	mtd: spi-nor: atmel: fix unlock_all() for AT25FS010/040
	arm64: dts: meson: g12b: odroid-n2: fix PHY deassert timing requirements
	arm64: dts: meson: fix PHY deassert timing requirements
	ARM: dts: meson: fix PHY deassert timing requirements
	arm64: dts: meson: g12a: x96-max: fix PHY deassert timing requirements
	arm64: dts: meson: g12b: w400: fix PHY deassert timing requirements
	clk: fsl-sai: fix memory leak
	scsi: qedi: Fix missing destroy_workqueue() on error in __qedi_probe
	scsi: pm80xx: Fix error return in pm8001_pci_probe()
	scsi: iscsi: Fix inappropriate use of put_device()
	seq_buf: Avoid type mismatch for seq_buf_init
	scsi: fnic: Fix error return code in fnic_probe()
	platform/x86: mlx-platform: Fix item counter assignment for MSN2700, MSN24xx systems
	platform/x86: mlx-platform: Fix item counter assignment for MSN2700/ComEx system
	ARM: 9030/1: entry: omit FP emulation for UND exceptions taken in kernel mode
	powerpc/pseries/hibernation: drop pseries_suspend_begin() from suspend ops
	powerpc/pseries/hibernation: remove redundant cacheinfo update
	powerpc/powermac: Fix low_sleep_handler with CONFIG_VMAP_STACK
	drm/mediatek: avoid dereferencing a null hdmi_phy on an error message
	ASoC: amd: change clk_get() to devm_clk_get() and add missed checks
	coresight: remove broken __exit annotations
	ASoC: max98390: Fix error codes in max98390_dsm_init()
	powerpc/mm: sanity_check_fault() should work for all, not only BOOK3S
	usb: ehci-omap: Fix PM disable depth umbalance in ehci_hcd_omap_probe
	usb: oxu210hp-hcd: Fix memory leak in oxu_create
	speakup: fix uninitialized flush_lock
	nfsd: Fix message level for normal termination
	NFSD: Fix 5 seconds delay when doing inter server copy
	nfs_common: need lock during iterate through the list
	x86/kprobes: Restore BTF if the single-stepping is cancelled
	scsi: qla2xxx: Fix FW initialization error on big endian machines
	scsi: qla2xxx: Fix N2N and NVMe connect retry failure
	platform/chrome: cros_ec_spi: Don't overwrite spi::mode
	misc: pci_endpoint_test: fix return value of error branch
	bus: fsl-mc: add back accidentally dropped error check
	bus: fsl-mc: fix error return code in fsl_mc_object_allocate()
	fsi: Aspeed: Add mutex to protect HW access
	s390/cio: fix use-after-free in ccw_device_destroy_console
	iwlwifi: dbg-tlv: fix old length in is_trig_data_contained()
	iwlwifi: mvm: hook up missing RX handlers
	erofs: avoid using generic_block_bmap
	clk: renesas: r8a779a0: Fix R and OSC clocks
	can: m_can: m_can_config_endisable(): remove double clearing of clock stop request bit
	powerpc/sstep: Emulate prefixed instructions only when CPU_FTR_ARCH_31 is set
	powerpc/sstep: Cover new VSX instructions under CONFIG_VSX
	slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()
	ALSA: hda/hdmi: fix silent stream for first playback to DP
	RDMA/core: Do not indicate device ready when device enablement fails
	RDMA/uverbs: Fix incorrect variable type
	remoteproc/mediatek: change MT8192 CFG register base
	remoteproc/mtk_scp: surround DT device IDs with CONFIG_OF
	remoteproc: q6v5-mss: fix error handling in q6v5_pds_enable
	remoteproc: qcom: fix reference leak in adsp_start
	remoteproc: qcom: pas: fix error handling in adsp_pds_enable
	remoteproc: k3-dsp: Fix return value check in k3_dsp_rproc_of_get_memories()
	remoteproc: qcom: Fix potential NULL dereference in adsp_init_mmio()
	remoteproc/mediatek: unprepare clk if scp_before_load fails
	clk: qcom: gcc-sc7180: Use floor ops for sdcc clks
	clk: tegra: Fix duplicated SE clock entry
	mtd: rawnand: gpmi: fix reference count leak in gpmi ops
	mtd: rawnand: meson: Fix a resource leak in init
	mtd: rawnand: gpmi: Fix the random DMA timeout issue
	samples/bpf: Fix possible hang in xdpsock with multiple threads
	fs: Handle I_DONTCACHE in iput_final() instead of generic_drop_inode()
	extcon: max77693: Fix modalias string
	crypto: atmel-i2c - select CONFIG_BITREVERSE
	mac80211: don't set set TDLS STA bandwidth wider than possible
	mac80211: fix a mistake check for rx_stats update
	ASoC: wm_adsp: remove "ctl" from list on error in wm_adsp_create_control()
	irqchip/alpine-msi: Fix freeing of interrupts on allocation error path
	irqchip/ti-sci-inta: Fix printing of inta id on probe success
	irqchip/ti-sci-intr: Fix freeing of irqs
	dmaengine: ti: k3-udma: Correct normal channel offset when uchan_cnt is not 0
	RDMA/hns: Limit the length of data copied between kernel and userspace
	RDMA/hns: Normalization the judgment of some features
	RDMA/hns: Do shift on traffic class when using RoCEv2
	gpiolib: irq hooks: fix recursion in gpiochip_irq_unmask
	ath11k: Fix incorrect tlvs in scan start command
	irqchip/qcom-pdc: Fix phantom irq when changing between rising/falling
	watchdog: armada_37xx: Add missing dependency on HAS_IOMEM
	watchdog: sirfsoc: Add missing dependency on HAS_IOMEM
	watchdog: sprd: remove watchdog disable from resume fail path
	watchdog: sprd: check busy bit before new loading rather than after that
	watchdog: Fix potential dereferencing of null pointer
	ubifs: Fix error return code in ubifs_init_authentication()
	um: Monitor error events in IRQ controller
	um: tty: Fix handling of close in tty lines
	um: chan_xterm: Fix fd leak
	sunrpc: fix xs_read_xdr_buf for partial pages receive
	RDMA/mlx5: Fix MR cache memory leak
	RDMA/cma: Don't overwrite sgid_attr after device is released
	nfc: s3fwrn5: Release the nfc firmware
	drm: mxsfb: Silence -EPROBE_DEFER while waiting for bridge
	powerpc/perf: Fix Threshold Event Counter Multiplier width for P10
	powerpc/ps3: use dma_mapping_error()
	perf test: Fix metric parsing test
	drm/amdgpu: fix regression in vbios reservation handling on headless
	mm/gup: reorganize internal_get_user_pages_fast()
	mm/gup: prevent gup_fast from racing with COW during fork
	mm/gup: combine put_compound_head() and unpin_user_page()
	mm: memcg/slab: fix return of child memcg objcg for root memcg
	mm: memcg/slab: fix use after free in obj_cgroup_charge
	mm/rmap: always do TTU_IGNORE_ACCESS
	sparc: fix handling of page table constructor failure
	mm/vmalloc: Fix unlock order in s_stop()
	mm/vmalloc.c: fix kasan shadow poisoning size
	mm,memory_failure: always pin the page in madvise_inject_error
	hugetlb: fix an error code in hugetlb_reserve_pages()
	mm: don't wake kswapd prematurely when watermark boosting is disabled
	proc: fix lookup in /proc/net subdirectories after setns(2)
	checkpatch: fix unescaped left brace
	s390/test_unwind: fix CALL_ON_STACK tests
	lan743x: fix rx_napi_poll/interrupt ping-pong
	ice, xsk: clear the status bits for the next_to_use descriptor
	i40e, xsk: clear the status bits for the next_to_use descriptor
	net: dsa: qca: ar9331: fix sleeping function called from invalid context bug
	dpaa2-eth: fix the size of the mapped SGT buffer
	net: bcmgenet: Fix a resource leak in an error handling path in the probe functin
	net: mscc: ocelot: Fix a resource leak in the error handling path of the probe function
	net: allwinner: Fix some resources leak in the error handling path of the probe and in the remove function
	block/rnbd-clt: Get rid of warning regarding size argument in strlcpy
	block/rnbd-clt: Fix possible memleak
	NFS/pNFS: Fix a typo in ff_layout_resend_pnfs_read()
	net: korina: fix return value
	devlink: use _BITUL() macro instead of BIT() in the UAPI header
	libnvdimm/label: Return -ENXIO for no slot in __blk_label_update
	powerpc/32s: Fix cleanup_cpu_mmu_context() compile bug
	watchdog: qcom: Avoid context switch in restart handler
	watchdog: coh901327: add COMMON_CLK dependency
	clk: ti: Fix memleak in ti_fapll_synth_setup
	pwm: zx: Add missing cleanup in error path
	pwm: lp3943: Dynamically allocate PWM chip base
	pwm: imx27: Fix overflow for bigger periods
	pwm: sun4i: Remove erroneous else branch
	io_uring: cancel only requests of current task
	tools build: Add missing libcap to test-all.bin target
	perf record: Fix memory leak when using '--user-regs=?' to list registers
	qlcnic: Fix error code in probe
	nfp: move indirect block cleanup to flower app stop callback
	vdpa/mlx5: Use write memory barrier after updating CQ index
	virtio_ring: Cut and paste bugs in vring_create_virtqueue_packed()
	virtio_net: Fix error code in probe()
	virtio_ring: Fix two use after free bugs
	vhost scsi: fix error return code in vhost_scsi_set_endpoint()
	epoll: check for events when removing a timed out thread from the wait queue
	clk: bcm: dvp: Add MODULE_DEVICE_TABLE()
	clk: at91: sama7g5: fix compilation error
	clk: at91: sam9x60: remove atmel,osc-bypass support
	clk: s2mps11: Fix a resource leak in error handling paths in the probe function
	clk: sunxi-ng: Make sure divider tables have sentinel
	clk: vc5: Use "idt,voltage-microvolt" instead of "idt,voltage-microvolts"
	kconfig: fix return value of do_error_if()
	powerpc/boot: Fix build of dts/fsl
	powerpc/smp: Add __init to init_big_cores()
	ARM: 9044/1: vfp: use undef hook for VFP support detection
	ARM: 9036/1: uncompress: Fix dbgadtb size parameter name
	perf probe: Fix memory leak when synthesizing SDT probes
	io_uring: fix racy IOPOLL flush overflow
	io_uring: cancel reqs shouldn't kill overflow list
	Smack: Handle io_uring kernel thread privileges
	proc mountinfo: make splice available again
	io_uring: fix io_cqring_events()'s noflush
	io_uring: fix racy IOPOLL completions
	io_uring: always let io_iopoll_complete() complete polled io
	vfio/pci: Move dummy_resources_list init in vfio_pci_probe()
	vfio/pci/nvlink2: Do not attempt NPU2 setup on POWER8NVL NPU
	media: gspca: Fix memory leak in probe
	io_uring: fix io_wqe->work_list corruption
	io_uring: fix 0-iov read buffer select
	io_uring: hold uring_lock while completing failed polled io in io_wq_submit_work()
	io_uring: fix ignoring xa_store errors
	io_uring: fix double io_uring free
	io_uring: make ctx cancel on exit targeted to actual ctx
	media: sunxi-cir: ensure IR is handled when it is continuous
	media: netup_unidvb: Don't leak SPI master in probe error path
	media: ipu3-cio2: Remove traces of returned buffers
	media: ipu3-cio2: Return actual subdev format
	media: ipu3-cio2: Serialise access to pad format
	media: ipu3-cio2: Validate mbus format in setting subdev format
	media: ipu3-cio2: Make the field on subdev format V4L2_FIELD_NONE
	Input: cyapa_gen6 - fix out-of-bounds stack access
	ALSA: hda/ca0132 - Change Input Source enum strings.
	ACPI: NFIT: Fix input validation of bus-family
	PM: ACPI: PCI: Drop acpi_pm_set_bridge_wakeup()
	Revert "ACPI / resources: Use AE_CTRL_TERMINATE to terminate resources walks"
	ACPI: PNP: compare the string length in the matching_id()
	ALSA: hda: Fix regressions on clear and reconfig sysfs
	ALSA: hda/ca0132 - Fix AE-5 rear headphone pincfg.
	ALSA: hda/realtek: make bass spk volume adjustable on a yoga laptop
	ALSA: hda/realtek - Enable headset mic of ASUS X430UN with ALC256
	ALSA: hda/realtek - Enable headset mic of ASUS Q524UQK with ALC255
	ALSA: hda/realtek - Add supported for more Lenovo ALC285 Headset Button
	ALSA: pcm: oss: Fix a few more UBSAN fixes
	ALSA/hda: apply jack fixup for the Acer Veriton N4640G/N6640G/N2510G
	ALSA: hda/realtek: Add quirk for MSI-GP73
	ALSA: hda/realtek: Apply jack fixup for Quanta NL3
	ALSA: hda/realtek: Remove dummy lineout on Acer TravelMate P648/P658
	ALSA: hda/realtek - Supported Dell fixed type headset
	ALSA: usb-audio: Add VID to support native DSD reproduction on FiiO devices
	ALSA: usb-audio: Disable sample read check if firmware doesn't give back
	ALSA: usb-audio: Add alias entry for ASUS PRIME TRX40 PRO-S
	ALSA: core: memalloc: add page alignment for iram
	s390/smp: perform initial CPU reset also for SMT siblings
	s390/kexec_file: fix diag308 subcode when loading crash kernel
	s390/idle: add missing mt_cycles calculation
	s390/idle: fix accounting with machine checks
	s390/dasd: fix hanging device offline processing
	s390/dasd: prevent inconsistent LCU device data
	s390/dasd: fix list corruption of pavgroup group list
	s390/dasd: fix list corruption of lcu list
	binder: add flag to clear buffer on txn complete
	ASoC: cx2072x: Fix doubly definitions of Playback and Capture streams
	ASoC: AMD Renoir - add DMI table to avoid the ACP mic probe (broken BIOS)
	ASoC: AMD Raven/Renoir - fix the PCI probe (PCI revision)
	staging: comedi: mf6x4: Fix AI end-of-conversion detection
	z3fold: simplify freeing slots
	z3fold: stricter locking and more careful reclaim
	perf/x86/intel: Add event constraint for CYCLE_ACTIVITY.STALLS_MEM_ANY
	perf/x86/intel: Fix rtm_abort_event encoding on Ice Lake
	perf/x86/intel/lbr: Fix the return type of get_lbr_cycles()
	powerpc/perf: Exclude kernel samples while counting events in user space.
	cpufreq: intel_pstate: Use most recent guaranteed performance values
	crypto: ecdh - avoid unaligned accesses in ecdh_set_secret()
	crypto: arm/aes-ce - work around Cortex-A57/A72 silion errata
	m68k: Fix WARNING splat in pmac_zilog driver
	Documentation: seqlock: s/LOCKTYPE/LOCKNAME/g
	EDAC/i10nm: Use readl() to access MMIO registers
	EDAC/amd64: Fix PCI component registration
	cpuset: fix race between hotplug work and later CPU offline
	dyndbg: fix use before null check
	USB: serial: mos7720: fix parallel-port state restore
	USB: serial: digi_acceleport: fix write-wakeup deadlocks
	USB: serial: keyspan_pda: fix dropped unthrottle interrupts
	USB: serial: keyspan_pda: fix write deadlock
	USB: serial: keyspan_pda: fix stalled writes
	USB: serial: keyspan_pda: fix write-wakeup use-after-free
	USB: serial: keyspan_pda: fix tx-unthrottle use-after-free
	USB: serial: keyspan_pda: fix write unthrottling
	btrfs: do not shorten unpin len for caching block groups
	btrfs: update last_byte_to_unpin in switch_commit_roots
	btrfs: fix race when defragmenting leads to unnecessary IO
	ext4: fix an IS_ERR() vs NULL check
	ext4: fix a memory leak of ext4_free_data
	ext4: fix deadlock with fs freezing and EA inodes
	ext4: don't remount read-only with errors=continue on reboot
	RISC-V: Fix usage of memblock_enforce_memory_limit
	arm64: dts: ti: k3-am65: mark dss as dma-coherent
	arm64: dts: marvell: keep SMMU disabled by default for Armada 7040 and 8040
	KVM: arm64: Introduce handling of AArch32 TTBCR2 traps
	KVM: x86: reinstate vendor-agnostic check on SPEC_CTRL cpuid bits
	KVM: SVM: Remove the call to sev_platform_status() during setup
	iommu/arm-smmu: Allow implementation specific write_s2cr
	iommu/arm-smmu-qcom: Read back stream mappings
	iommu/arm-smmu-qcom: Implement S2CR quirk
	ARM: dts: pandaboard: fix pinmux for gpio user button of Pandaboard ES
	ARM: dts: at91: sama5d2: fix CAN message ram offset and size
	ARM: tegra: Populate OPP table for Tegra20 Ventana
	xprtrdma: Fix XDRBUF_SPARSE_PAGES support
	powerpc/32: Fix vmap stack - Properly set r1 before activating MMU on syscall too
	powerpc: Fix incorrect stw{, ux, u, x} instructions in __set_pte_at
	powerpc/rtas: Fix typo of ibm,open-errinjct in RTAS filter
	powerpc/bitops: Fix possible undefined behaviour with fls() and fls64()
	powerpc/feature: Add CPU_FTR_NOEXECUTE to G2_LE
	powerpc/xmon: Change printk() to pr_cont()
	powerpc/8xx: Fix early debug when SMC1 is relocated
	powerpc/mm: Fix verification of MMU_FTR_TYPE_44x
	powerpc/powernv/npu: Do not attempt NPU2 setup on POWER8NVL NPU
	powerpc/powernv/memtrace: Don't leak kernel memory to user space
	powerpc/powernv/memtrace: Fix crashing the kernel when enabling concurrently
	ovl: make ioctl() safe
	ima: Don't modify file descriptor mode on the fly
	um: Remove use of asprinf in umid.c
	um: Fix time-travel mode
	ceph: fix race in concurrent __ceph_remove_cap invocations
	SMB3: avoid confusing warning message on mount to Azure
	SMB3.1.1: remove confusing mount warning when no SPNEGO info on negprot rsp
	SMB3.1.1: do not log warning message if server doesn't populate salt
	ubifs: wbuf: Don't leak kernel memory to flash
	jffs2: Fix GC exit abnormally
	jffs2: Fix ignoring mounting options problem during remounting
	fsnotify: generalize handle_inode_event()
	inotify: convert to handle_inode_event() interface
	fsnotify: fix events reported to watching parent and child
	jfs: Fix array index bounds check in dbAdjTree
	drm/panfrost: Fix job timeout handling
	drm/panfrost: Move the GPU reset bits outside the timeout handler
	platform/x86: mlx-platform: remove an unused variable
	drm/amdgpu: only set DP subconnector type on DP and eDP connectors
	drm/amd/display: Fix memory leaks in S3 resume
	drm/dp_aux_dev: check aux_dev before use in drm_dp_aux_dev_get_by_minor()
	drm/i915: Fix mismatch between misplaced vma check and vma insert
	iio: ad_sigma_delta: Don't put SPI transfer buffer on the stack
	spi: pxa2xx: Fix use-after-free on unbind
	spi: spi-sh: Fix use-after-free on unbind
	spi: atmel-quadspi: Fix use-after-free on unbind
	spi: spi-mtk-nor: Don't leak SPI master in probe error path
	spi: ar934x: Don't leak SPI master in probe error path
	spi: davinci: Fix use-after-free on unbind
	spi: fsl: fix use of spisel_boot signal on MPC8309
	spi: gpio: Don't leak SPI master in probe error path
	spi: mxic: Don't leak SPI master in probe error path
	spi: npcm-fiu: Disable clock in probe error path
	spi: pic32: Don't leak DMA channels in probe error path
	spi: rb4xx: Don't leak SPI master in probe error path
	spi: rpc-if: Fix use-after-free on unbind
	spi: sc18is602: Don't leak SPI master in probe error path
	spi: spi-geni-qcom: Fix use-after-free on unbind
	spi: spi-qcom-qspi: Fix use-after-free on unbind
	spi: st-ssc4: Fix unbalanced pm_runtime_disable() in probe error path
	spi: synquacer: Disable clock in probe error path
	spi: mt7621: Disable clock in probe error path
	spi: mt7621: Don't leak SPI master in probe error path
	spi: atmel-quadspi: Disable clock in probe error path
	spi: atmel-quadspi: Fix AHB memory accesses
	soc: qcom: smp2p: Safely acquire spinlock without IRQs
	mtd: spinand: Fix OOB read
	mtd: parser: cmdline: Fix parsing of part-names with colons
	mtd: core: Fix refcounting for unpartitioned MTDs
	mtd: rawnand: qcom: Fix DMA sync on FLASH_STATUS register read
	mtd: rawnand: meson: fix meson_nfc_dma_buffer_release() arguments
	scsi: qla2xxx: Fix crash during driver load on big endian machines
	scsi: lpfc: Fix invalid sleeping context in lpfc_sli4_nvmet_alloc()
	scsi: lpfc: Fix scheduling call while in softirq context in lpfc_unreg_rpi
	scsi: lpfc: Re-fix use after free in lpfc_rq_buf_free()
	openat2: reject RESOLVE_BENEATH|RESOLVE_IN_ROOT
	iio: buffer: Fix demux update
	iio: adc: rockchip_saradc: fix missing clk_disable_unprepare() on error in rockchip_saradc_resume
	iio: imu: st_lsm6dsx: fix edge-trigger interrupts
	iio:light:rpr0521: Fix timestamp alignment and prevent data leak.
	iio:light:st_uvis25: Fix timestamp alignment and prevent data leak.
	iio:magnetometer:mag3110: Fix alignment and data leak issues.
	iio:pressure:mpl3115: Force alignment of buffer
	iio:imu:bmi160: Fix too large a buffer.
	iio:imu:bmi160: Fix alignment and data leak issues
	iio:adc:ti-ads124s08: Fix buffer being too long.
	iio:adc:ti-ads124s08: Fix alignment and data leak issues.
	md/cluster: block reshape with remote resync job
	md/cluster: fix deadlock when node is doing resync job
	pinctrl: sunxi: Always call chained_irq_{enter, exit} in sunxi_pinctrl_irq_handler
	clk: ingenic: Fix divider calculation with div tables
	clk: mvebu: a3700: fix the XTAL MODE pin to MPP1_9
	clk: tegra: Do not return 0 on failure
	counter: microchip-tcb-capture: Fix CMR value check
	device-dax/core: Fix memory leak when rmmod dax.ko
	dma-buf/dma-resv: Respect num_fences when initializing the shared fence list.
	driver: core: Fix list corruption after device_del()
	xen-blkback: set ring->xenblkd to NULL after kthread_stop()
	xen/xenbus: Allow watches discard events before queueing
	xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path()
	xen/xenbus/xen_bus_type: Support will_handle watch callback
	xen/xenbus: Count pending messages for each watch
	xenbus/xenbus_backend: Disallow pending watch messages
	memory: jz4780_nemc: Fix an error pointer vs NULL check in probe()
	memory: renesas-rpc-if: Fix a node reference leak in rpcif_probe()
	memory: renesas-rpc-if: Return correct value to the caller of rpcif_manual_xfer()
	memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in rpcif_{enable,disable}_rpm
	libnvdimm/namespace: Fix reaping of invalidated block-window-namespace labels
	platform/x86: intel-vbtn: Allow switch events on Acer Switch Alpha 12
	tracing: Disable ftrace selftests when any tracer is running
	mt76: add back the SUPPORTS_REORDERING_BUFFER flag
	of: fix linker-section match-table corruption
	PCI: Fix pci_slot_release() NULL pointer dereference
	regulator: axp20x: Fix DLDO2 voltage control register mask for AXP22x
	remoteproc: sysmon: Ensure remote notification ordering
	thermal/drivers/cpufreq_cooling: Update cpufreq_state only if state has changed
	rtc: ep93xx: Fix NULL pointer dereference in ep93xx_rtc_read_time
	Revert: "ring-buffer: Remove HAVE_64BIT_ALIGNED_ACCESS"
	null_blk: Fix zone size initialization
	null_blk: Fail zone append to conventional zones
	drm/edid: fix objtool warning in drm_cvt_modes()
	x86/CPU/AMD: Save AMD NodeId as cpu_die_id
	Linux 5.10.4

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I25209e79d8b9faf5382087955a29b7404bdefe38
2020-12-30 12:47:03 +01:00
Jason Gunthorpe
537946556c mm/gup: prevent gup_fast from racing with COW during fork
[ Upstream commit 57efa1fe5957694fa541c9062de0a127f0b9acb0 ]

Since commit 70e806e4e6 ("mm: Do early cow for pinned pages during
fork() for ptes") pages under a FOLL_PIN will not be write protected
during COW for fork.  This means that pages returned from
pin_user_pages(FOLL_WRITE) should not become write protected while the pin
is active.

However, there is a small race where get_user_pages_fast(FOLL_PIN) can
establish a FOLL_PIN at the same time copy_present_page() is write
protecting it:

        CPU 0                             CPU 1
   get_user_pages_fast()
    internal_get_user_pages_fast()
                                       copy_page_range()
                                         pte_alloc_map_lock()
                                           copy_present_page()
                                             atomic_read(has_pinned) == 0
					     page_maybe_dma_pinned() == false
     atomic_set(has_pinned, 1);
     gup_pgd_range()
      gup_pte_range()
       pte_t pte = gup_get_pte(ptep)
       pte_access_permitted(pte)
       try_grab_compound_head()
                                             pte = pte_wrprotect(pte)
	                                     set_pte_at();
                                         pte_unmap_unlock()
      // GUP now returns with a write protected page

The first attempt to resolve this by using the write protect caused
problems (and was missing a barrrier), see commit f3c64eda3e ("mm: avoid
early COW write protect games during fork()")

Instead wrap copy_p4d_range() with the write side of a seqcount and check
the read side around gup_pgd_range().  If there is a collision then
get_user_pages_fast() fails and falls back to slow GUP.

Slow GUP is safe against this race because copy_page_range() is only
called while holding the exclusive side of the mmap_lock on the src
mm_struct.

[akpm@linux-foundation.org: coding style fixes]
  Link: https://lore.kernel.org/r/CAHk-=wi=iCnYCARbPGjkVJu9eyYeZ13N64tZYLdOB8CP5Q_PLw@mail.gmail.com

Link: https://lkml.kernel.org/r/2-v4-908497cf359a+4782-gup_fork_jgg@nvidia.com
Fixes: f3c64eda3e ("mm: avoid early COW write protect games during fork()")
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Peter Xu <peterx@redhat.com>
Acked-by: "Ahmed S. Darwish" <a.darwish@linutronix.de>	[seqcount_t parts]
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kirill Shutemov <kirill@shutemov.name>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-12-30 11:53:54 +01:00
Shaleen Agrawal
5a920a6503 ANDROID: Sched: Export scheduler symbols needed by vendor modules
Need to export internal scheduler symbols to facilitate vendor module
with scheduler based value-adds.

Bug: 173725277
Change-Id: I021f09097dfc1480abcc998cc8e05e75b2ee828b
Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2020-12-03 16:50:04 +00:00
Greg Kroah-Hartman
2cfc344f81 Merge 5.10-rc3 into android-mainline
Linux 5.10-rc3

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7884051ea7b86204b2685b51462368e122ad0772
2020-11-09 12:49:27 +01:00
Eddy Wu
b4e00444ca fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent
current->group_leader->exit_signal may change during copy_process() if
current->real_parent exits.

Move the assignment inside tasklist_lock to avoid the race.

Signed-off-by: Eddy Wu <eddy_wu@trendmicro.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-11-08 11:18:39 -08:00
Greg Kroah-Hartman
05d2a661fd Merge 54a4c789ca ("Merge tag 'docs/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media") into android-mainline
Steps on the way to 5.10-rc1

Resolves conflicts in:
	fs/userfaultfd.c

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie3fe3c818f1f6565cfd4fa551de72d2b72ef60af
2020-10-26 09:23:33 +01:00
Greg Kroah-Hartman
8c3d23ed9c Merge 6e4dc3d592 ("Merge tag 'for-linus-5.10-1' of git://github.com/cminyard/linux-ipmi") into android-mainline
Steps on the way to 5.10-rc1

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Idbd0577a495237bf5628333110e2c98a77b39c77
2020-10-25 16:26:30 +01:00
Greg Kroah-Hartman
75c90a8c3a Merge d5660df4a5 ("Merge branch 'akpm' (patches from Andrew)") into android-mainline
steps on the way to 5.10-rc1

Change-Id: Iddc84c25b6a9d71fa8542b927d6f69c364131c3d
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2020-10-25 11:57:29 +01:00
Greg Kroah-Hartman
e24a525c0d Merge 6ad4bf6ea1 ("Merge tag 'io_uring-5.10-2020-10-12' of git://git.kernel.dk/linux-block") into android-mainline
Resolves conflict with:
	kernel/fork.c

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I6c031ef388bfddfe80a64929d62969718755f740
2020-10-25 11:50:09 +01:00
Randy Dunlap
7b7b8a2c95 kernel/: fix repeated words in comments
Fix multiple occurrences of duplicated words in kernel/.

Fix one typo/spello on the same line as a duplicate word.  Change one
instance of "the the" to "that the".  Otherwise just drop one of the
repeated words.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/98202fa6-8919-ef63-9efe-c0fad5ca7af1@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-16 11:11:19 -07:00
Miaohe Lin
73eb7f9a4f mm: use helper function put_write_access()
In commit 1da177e4c3 ("Linux-2.6.12-rc2"), the helper put_write_access()
came with the atomic_dec operation of the i_writecount field.  But it
forgot to use this helper in __vma_link_file() and dup_mmap().

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/20200924115235.5111-1-linmiaohe@huawei.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-16 11:11:19 -07:00
Linus Torvalds
612e7a4c16 Merge tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull kernel_clone() updates from Christian Brauner:
 "During the v5.9 merge window we reworked the process creation
  codepaths across multiple architectures. After this work we were only
  left with the _do_fork() helper based on the struct kernel_clone_args
  calling convention. As was pointed out _do_fork() isn't valid
  kernelese especially for a helper that isn't just static.

  This series removes the _do_fork() helper and introduces the new
  kernel_clone() helper. The process creation cleanup didn't change the
  name to something more reasonable mainly because _do_fork() was used
  in quite a few places. So sending this as a separate series seemed the
  better strategy.

  I originally intended to send this early in the v5.9 development cycle
  after the merge window had closed but given that this was touching
  quite a few places I decided to defer this until the v5.10 merge
  window"

* tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  sched: remove _do_fork()
  tracing: switch to kernel_clone()
  kgdbts: switch to kernel_clone()
  kprobes: switch to kernel_clone()
  x86: switch to kernel_clone()
  sparc: switch to kernel_clone()
  nios2: switch to kernel_clone()
  m68k: switch to kernel_clone()
  ia64: switch to kernel_clone()
  h8300: switch to kernel_clone()
  fork: introduce kernel_clone()
2020-10-14 14:32:52 -07:00
Suren Baghdasaryan
67197a4f28 mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary
Currently __set_oom_adj loops through all processes in the system to keep
oom_score_adj and oom_score_adj_min in sync between processes sharing
their mm.  This is done for any task with more that one mm_users, which
includes processes with multiple threads (sharing mm and signals).
However for such processes the loop is unnecessary because their signal
structure is shared as well.

Android updates oom_score_adj whenever a tasks changes its role
(background/foreground/...) or binds to/unbinds from a service, making it
more/less important.  Such operation can happen frequently.  We noticed
that updates to oom_score_adj became more expensive and after further
investigation found out that the patch mentioned in "Fixes" introduced a
regression.  Using Pixel 4 with a typical Android workload, write time to
oom_score_adj increased from ~3.57us to ~362us.  Moreover this regression
linearly depends on the number of multi-threaded processes running on the
system.

Mark the mm with a new MMF_MULTIPROCESS flag bit when task is created with
(CLONE_VM && !CLONE_THREAD && !CLONE_VFORK).  Change __set_oom_adj to use
MMF_MULTIPROCESS instead of mm_users to decide whether oom_score_adj
update should be synchronized between multiple processes.  To prevent
races between clone() and __set_oom_adj(), when oom_score_adj of the
process being cloned might be modified from userspace, we use
oom_adj_mutex.  Its scope is changed to global.

The combination of (CLONE_VM && !CLONE_THREAD) is rarely used except for
the case of vfork().  To prevent performance regressions of vfork(), we
skip taking oom_adj_mutex and setting MMF_MULTIPROCESS when CLONE_VFORK is
specified.  Clearing the MMF_MULTIPROCESS flag (when the last process
sharing the mm exits) is left out of this patch to keep it simple and
because it is believed that this threading model is rare.  Should there
ever be a need for optimizing that case as well, it can be done by hooking
into the exit path, likely following the mm_update_next_owner pattern.

With the combination of (CLONE_VM && !CLONE_THREAD && !CLONE_VFORK) being
quite rare, the regression is gone after the change is applied.

[surenb@google.com: v3]
  Link: https://lkml.kernel.org/r/20200902012558.2335613-1-surenb@google.com

Fixes: 44a70adec9 ("mm, oom_adj: make sure processes sharing mm have same view of oom_score_adj")
Reported-by: Tim Murray <timmurray@google.com>
Suggested-by: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Eugene Syromiatnikov <esyr@redhat.com>
Cc: Christian Kellner <christian@kellner.me>
Cc: Adrian Reber <areber@redhat.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Alexey Gladkov <gladkov.alexey@gmail.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Andrei Vagin <avagin@gmail.com>
Cc: Bernd Edlinger <bernd.edlinger@hotmail.de>
Cc: John Johansen <john.johansen@canonical.com>
Cc: Yafang Shao <laoar.shao@gmail.com>
Link: https://lkml.kernel.org/r/20200824153036.3201505-1-surenb@google.com
Debugged-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:35 -07:00
Peter Xu
c78f463649 mm: remove src/dst mm parameter in copy_page_range()
Both of the mm pointers are not needed after commit 7a4830c380
("mm/fork: Pass new vma pointer into copy_page_range()").

Jason Gunthorpe also reported that the ordering of copy_page_range() is
odd.  Since working at it, reorder the parameters to be logical, by (1)
always put the dst_* fields to be before src_* fields, and (2) keep the
same type of parameters together.

[peterx@redhat.com: further reorder some parameters and line format, per Jason]
  Link: https://lkml.kernel.org/r/20201002192647.7161-1-peterx@redhat.com
[peterx@redhat.com: fix warnings]
  Link: https://lkml.kernel.org/r/20201006200138.GA6026@xz-x1

Reported-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: https://lkml.kernel.org/r/20200930204950.6668-1-peterx@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:32 -07:00
Miaohe Lin
cf508b5845 mm: use helper function mapping_allow_writable()
Commit 4bb5f5d939 ("mm: allow drivers to prevent new writable mappings")
changed i_mmap_writable from unsigned int to atomic_t and add the helper
function mapping_allow_writable() to atomic_inc i_mmap_writable.  But it
forgot to use this helper function in dup_mmap() and __vma_link_file().

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Christian Kellner <christian@kellner.me>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Adrian Reber <areber@redhat.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200917112736.7789-1-linmiaohe@huawei.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:31 -07:00
Jens Axboe
0f2122045b io_uring: don't rely on weak ->files references
Grab actual references to the files_struct. To avoid circular references
issues due to this, we add a per-task note that keeps track of what
io_uring contexts a task has used. When the tasks execs or exits its
assigned files, we cancel requests based on this tracking.

With that, we can grab proper references to the files table, and no
longer need to rely on stashing away ring_fd and ring_file to check
if the ring_fd may have been closed.

Cc: stable@vger.kernel.org # v5.5+
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-30 20:32:32 -06:00
Greg Kroah-Hartman
0ac540b4e5 Merge tag 'v5.9-rc7' into android-mainline
Linux 5.9-rc7

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I27a128f784a1570ef0181a480c612cc294a645a7
2020-09-28 13:55:18 +02:00
Peter Xu
7a4830c380 mm/fork: Pass new vma pointer into copy_page_range()
This prepares for the future work to trigger early cow on pinned pages
during fork().

No functional change intended.

Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-09-27 11:21:35 -07:00
Peter Xu
008cfe4418 mm: Introduce mm_struct.has_pinned
(Commit message majorly collected from Jason Gunthorpe)

Reduce the chance of false positive from page_maybe_dma_pinned() by
keeping track if the mm_struct has ever been used with pin_user_pages().
This allows cases that might drive up the page ref_count to avoid any
penalty from handling dma_pinned pages.

Future work is planned, to provide a more sophisticated solution, likely
to turn it into a real counter.  For now, make it atomic_t but use it as
a boolean for simplicity.

Suggested-by: Jason Gunthorpe <jgg@ziepe.ca>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-09-27 11:21:35 -07:00
Greg Kroah-Hartman
3d3ef2a059 Merge 5.9-rc4 into android-mainline
Linux 5.9-rc4

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3d041935cae5e8f3421edcdee4892f17e2c776ad
2020-09-07 09:24:58 +02:00
Tobias Klauser
b0daa2c73f fork: adjust sysctl_max_threads definition to match prototype
Commit 32927393dc ("sysctl: pass kernel pointers to ->proc_handler")
changed ctl_table.proc_handler to take a kernel pointer.  Adjust the
definition of sysctl_max_threads to match its prototype in
linux/sysctl.h which fixes the following sparse error/warning:

  kernel/fork.c:3050:47: warning: incorrect type in argument 3 (different address spaces)
  kernel/fork.c:3050:47:    expected void *
  kernel/fork.c:3050:47:    got void [noderef] __user *buffer
  kernel/fork.c:3036:5: error: symbol 'sysctl_max_threads' redeclared with different type (incompatible argument 3 (different address spaces)):
  kernel/fork.c:3036:5:    int extern [addressable] [signed] [toplevel] sysctl_max_threads( ... )
  kernel/fork.c: note: in included file (through include/linux/key.h, include/linux/cred.h, include/linux/sched/signal.h, include/linux/sched/cputime.h):
  include/linux/sysctl.h:242:5: note: previously declared as:
  include/linux/sysctl.h:242:5:    int extern [addressable] [signed] [toplevel] sysctl_max_threads( ... )

Fixes: 32927393dc ("sysctl: pass kernel pointers to ->proc_handler")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lkml.kernel.org/r/20200825093647.24263-1-tklauser@distanz.ch
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-09-05 12:14:29 -07:00
Christian Brauner
cad6967ac1 fork: introduce kernel_clone()
The old _do_fork() helper doesn't follow naming conventions of in-kernel
helpers for syscalls. The process creation cleanup in [1] didn't change the
name to something more reasonable mainly because _do_fork() was used in quite a
few places. So sending this as a separate series seemed the better strategy.

This commit does two things:
1. renames _do_fork() to kernel_clone() but keeps _do_fork() as a simple static
   inline wrapper around kernel_clone().
2. Changes the return type from long to pid_t. This aligns kernel_thread() and
   kernel_clone(). Also, the return value from kernel_clone that is surfaced in
   fork(), vfork(), clone(), and clone3() is taken from pid_vrn() which returns
   a pid_t too.

Follow-up patches will switch each caller of _do_fork() and each place where it
is referenced over to kernel_clone(). After all these changes are done, we can
remove _do_fork() completely and will only be left with kernel_clone().

[1]: 9ba27414f2 ("Merge tag 'fork-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux")

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Link: https://lore.kernel.org/r/20200819104655.436656-2-christian.brauner@ubuntu.com
2020-08-20 13:12:57 +02:00
Greg Kroah-Hartman
d7b0856eac Merge 00e4db5125 ("Merge tag 'perf-tools-2020-08-10' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux") into android-mainline
Tiny steps on the way to 5.9-rc1.

Fixes conflicts in:
	fs/f2fs/inline.c

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I16d863ae44a51156499458e8c3486587cbe2babe
2020-08-11 10:57:46 +02:00
Linus Torvalds
97d052ea3f Merge tag 'locking-urgent-2020-08-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Thomas Gleixner:
 "A set of locking fixes and updates:

   - Untangle the header spaghetti which causes build failures in
     various situations caused by the lockdep additions to seqcount to
     validate that the write side critical sections are non-preemptible.

   - The seqcount associated lock debug addons which were blocked by the
     above fallout.

     seqcount writers contrary to seqlock writers must be externally
     serialized, which usually happens via locking - except for strict
     per CPU seqcounts. As the lock is not part of the seqcount, lockdep
     cannot validate that the lock is held.

     This new debug mechanism adds the concept of associated locks.
     sequence count has now lock type variants and corresponding
     initializers which take a pointer to the associated lock used for
     writer serialization. If lockdep is enabled the pointer is stored
     and write_seqcount_begin() has a lockdep assertion to validate that
     the lock is held.

     Aside of the type and the initializer no other code changes are
     required at the seqcount usage sites. The rest of the seqcount API
     is unchanged and determines the type at compile time with the help
     of _Generic which is possible now that the minimal GCC version has
     been moved up.

     Adding this lockdep coverage unearthed a handful of seqcount bugs
     which have been addressed already independent of this.

     While generally useful this comes with a Trojan Horse twist: On RT
     kernels the write side critical section can become preemtible if
     the writers are serialized by an associated lock, which leads to
     the well known reader preempts writer livelock. RT prevents this by
     storing the associated lock pointer independent of lockdep in the
     seqcount and changing the reader side to block on the lock when a
     reader detects that a writer is in the write side critical section.

   - Conversion of seqcount usage sites to associated types and
     initializers"

* tag 'locking-urgent-2020-08-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
  locking/seqlock, headers: Untangle the spaghetti monster
  locking, arch/ia64: Reduce <asm/smp.h> header dependencies by moving XTP bits into the new <asm/xtp.h> header
  x86/headers: Remove APIC headers from <asm/smp.h>
  seqcount: More consistent seqprop names
  seqcount: Compress SEQCNT_LOCKNAME_ZERO()
  seqlock: Fold seqcount_LOCKNAME_init() definition
  seqlock: Fold seqcount_LOCKNAME_t definition
  seqlock: s/__SEQ_LOCKDEP/__SEQ_LOCK/g
  hrtimer: Use sequence counter with associated raw spinlock
  kvm/eventfd: Use sequence counter with associated spinlock
  userfaultfd: Use sequence counter with associated spinlock
  NFSv4: Use sequence counter with associated spinlock
  iocost: Use sequence counter with associated spinlock
  raid5: Use sequence counter with associated spinlock
  vfs: Use sequence counter with associated spinlock
  timekeeping: Use sequence counter with associated raw spinlock
  xfrm: policy: Use sequence counters with associated lock
  netfilter: nft_set_rbtree: Use sequence counter with associated rwlock
  netfilter: conntrack: Use sequence counter with associated spinlock
  sched: tasks: Use sequence counter with associated spinlock
  ...
2020-08-10 19:07:44 -07:00
Greg Kroah-Hartman
a17a563d16 Merge 449dc8c970 ("Merge tag 'for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply") into android-mainline
Merges along the way to 5.9-rc1

resolves conflicts in:
	Documentation/ABI/testing/sysfs-class-power
	drivers/power/supply/power_supply_sysfs.c
	fs/crypto/inline_crypt.c

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia087834f54fb4e5269d68c3c404747ceed240701
2020-08-08 13:07:20 +02:00
Andrey Konovalov
8dcc1d3466 kasan: don't tag stacks allocated with pagealloc
Patch series "kasan: support stack instrumentation for tag-based mode", v2.

This patch (of 5):

Prepare Software Tag-Based KASAN for stack tagging support.

With Tag-Based KASAN when kernel stacks are allocated via pagealloc (which
happens when CONFIG_VMAP_STACK is not enabled), they get tagged.  KASAN
instrumentation doesn't expect the sp register to be tagged, and this
leads to false-positive reports.

Fix by resetting the tag of kernel stack pointers after allocation.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Walter Wu <walter-zh.wu@mediatek.com>
Cc: Elena Petrova <lenaptr@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Link: http://lkml.kernel.org/r/cover.1596199677.git.andreyknvl@google.com
Link: http://lkml.kernel.org/r/cover.1596544734.git.andreyknvl@google.com
Link: http://lkml.kernel.org/r/12d8c678869268dd0884b01271ab592f30792abf.1596544734.git.andreyknvl@google.com
Link: http://lkml.kernel.org/r/01c678b877755bcf29009176592402cdf6f2cb15.1596199677.git.andreyknvl@google.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=203497
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-07 11:33:28 -07:00
Shakeel Butt
991e767385 mm: memcontrol: account kernel stack per node
Currently the kernel stack is being accounted per-zone.  There is no need
to do that.  In addition due to being per-zone, memcg has to keep a
separate MEMCG_KERNEL_STACK_KB.  Make the stat per-node and deprecate
MEMCG_KERNEL_STACK_KB as memcg_stat_item is an extension of
node_stat_item.  In addition localize the kernel stack stats updates to
account_kernel_stack().

Signed-off-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Roman Gushchin <guro@fb.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Link: http://lkml.kernel.org/r/20200630161539.1759185-1-shakeelb@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-07 11:33:25 -07:00
Greg Kroah-Hartman
f04a11ac99 Merge 7b4ea9456d ("Revert "x86/mm/64: Do not sync vmalloc/ioremap mappings"") into android-mainline
Steps on the way to 5.9-rc1

Resolves conflicts in:
	drivers/irqchip/qcom-pdc.c
	include/linux/device.h
	net/xfrm/xfrm_state.c
	security/lsm_audit.c

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4aeb3d04f4717714a421721eb3ce690c099bb30a
2020-08-07 16:01:35 +02:00
Greg Kroah-Hartman
00d6a8a7ee Merge e4cbce4d13 ("Merge tag 'sched-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip") into android-mainline
Baby steps for 5.9-rc1

Resolves some kernel/sched/ merge issues.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I88cf5411ac7251f9795d9c50cb18b0df5bf0bcd6
2020-08-07 14:17:39 +02:00
Greg Kroah-Hartman
d332fba061 Merge b34133fec8 ("Merge tag 'perf-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip") into android-mainline
Steps on the way to 5.9-rc1

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib901b7670a0313d91a57bce86c9587a25020cc3d
2020-08-06 20:25:54 +02:00
Linus Torvalds
4f30a60aa7 Merge tag 'close-range-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull close_range() implementation from Christian Brauner:
 "This adds the close_range() syscall. It allows to efficiently close a
  range of file descriptors up to all file descriptors of a calling
  task.

  This is coordinated with the FreeBSD folks which have copied our
  version of this syscall and in the meantime have already merged it in
  April 2019:

    https://reviews.freebsd.org/D21627
    https://svnweb.freebsd.org/base?view=revision&revision=359836

  The syscall originally came up in a discussion around the new mount
  API and making new file descriptor types cloexec by default. During
  this discussion, Al suggested the close_range() syscall.

  First, it helps to close all file descriptors of an exec()ing task.
  This can be done safely via (quoting Al's example from [1] verbatim):

        /* that exec is sensitive */
        unshare(CLONE_FILES);
        /* we don't want anything past stderr here */
        close_range(3, ~0U);
        execve(....);

  The code snippet above is one way of working around the problem that
  file descriptors are not cloexec by default. This is aggravated by the
  fact that we can't just switch them over without massively regressing
  userspace. For a whole class of programs having an in-kernel method of
  closing all file descriptors is very helpful (e.g. demons, service
  managers, programming language standard libraries, container managers
  etc.).

  Second, it allows userspace to avoid implementing closing all file
  descriptors by parsing through /proc/<pid>/fd/* and calling close() on
  each file descriptor and other hacks. From looking at various
  large(ish) userspace code bases this or similar patterns are very
  common in service managers, container runtimes, and programming
  language runtimes/standard libraries such as Python or Rust.

  In addition, the syscall will also work for tasks that do not have
  procfs mounted and on kernels that do not have procfs support compiled
  in. In such situations the only way to make sure that all file
  descriptors are closed is to call close() on each file descriptor up
  to UINT_MAX or RLIMIT_NOFILE, OPEN_MAX trickery.

  Based on Linus' suggestion close_range() also comes with a new flag
  CLOSE_RANGE_UNSHARE to more elegantly handle file descriptor dropping
  right before exec. This would usually be expressed in the sequence:

        unshare(CLONE_FILES);
        close_range(3, ~0U);

  as pointed out by Linus it might be desirable to have this be a part
  of close_range() itself under a new flag CLOSE_RANGE_UNSHARE which
  gets especially handy when we're closing all file descriptors above a
  certain threshold.

  Test-suite as always included"

* tag 'close-range-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  tests: add CLOSE_RANGE_UNSHARE tests
  close_range: add CLOSE_RANGE_UNSHARE
  tests: add close_range() tests
  arch: wire-up close_range()
  open: add close_range()
2020-08-04 15:12:02 -07:00
Linus Torvalds
9ba27414f2 Merge tag 'fork-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull fork cleanups from Christian Brauner:
 "This is cleanup series from when we reworked a chunk of the process
  creation paths in the kernel and switched to struct
  {kernel_}clone_args.

  High-level this does two main things:

   - Remove the double export of both do_fork() and _do_fork() where
     do_fork() used the incosistent legacy clone calling convention.

     Now we only export _do_fork() which is based on struct
     kernel_clone_args.

   - Remove the copy_thread_tls()/copy_thread() split making the
     architecture specific HAVE_COYP_THREAD_TLS config option obsolete.

  This switches all remaining architectures to select
  HAVE_COPY_THREAD_TLS and thus to the copy_thread_tls() calling
  convention. The current split makes the process creation codepaths
  more convoluted than they need to be. Each architecture has their own
  copy_thread() function unless it selects HAVE_COPY_THREAD_TLS then it
  has a copy_thread_tls() function.

  The split is not needed anymore nowadays, all architectures support
  CLONE_SETTLS but quite a few of them never bothered to select
  HAVE_COPY_THREAD_TLS and instead simply continued to use copy_thread()
  and use the old calling convention. Removing this split cleans up the
  process creation codepaths and paves the way for implementing clone3()
  on such architectures since it requires the copy_thread_tls() calling
  convention.

  After having made each architectures support copy_thread_tls() this
  series simply renames that function back to copy_thread(). It also
  switches all architectures that call do_fork() directly over to
  _do_fork() and the struct kernel_clone_args calling convention. This
  is a corollary of switching the architectures that did not yet support
  it over to copy_thread_tls() since do_fork() is conditional on not
  supporting copy_thread_tls() (Mostly because it lacks a separate
  argument for tls which is trivial to fix but there's no need for this
  function to exist.).

  The do_fork() removal is in itself already useful as it allows to to
  remove the export of both do_fork() and _do_fork() we currently have
  in favor of only _do_fork(). This has already been discussed back when
  we added clone3(). The legacy clone() calling convention is - as is
  probably well-known - somewhat odd:

    #
    # ABI hall of shame
    #
    config CLONE_BACKWARDS
    config CLONE_BACKWARDS2
    config CLONE_BACKWARDS3

  that is aggravated by the fact that some architectures such as sparc
  follow the CLONE_BACKWARDSx calling convention but don't really select
  the corresponding config option since they call do_fork() directly.

  So do_fork() enforces a somewhat arbitrary calling convention in the
  first place that doesn't really help the individual architectures that
  deviate from it. They can thus simply be switched to _do_fork()
  enforcing a single calling convention. (I really hope that any new
  architectures will __not__ try to implement their own calling
  conventions...)

  Most architectures already have made a similar switch (m68k comes to
  mind).

  Overall this removes more code than it adds even with a good portion
  of added comments. It simplifies a chunk of arch specific assembly
  either by moving the code into C or by simply rewriting the assembly.

  Architectures that have been touched in non-trivial ways have all been
  actually boot and stress tested: sparc and ia64 have been tested with
  Debian 9 images. They are the two architectures which have been
  touched the most. All non-trivial changes to architectures have seen
  acks from the relevant maintainers. nios2 with a custom built
  buildroot image. h8300 I couldn't get something bootable to test on
  but the changes have been fairly automatic and I'm sure we'll hear
  people yell if I broke something there.

  All other architectures that have been touched in trivial ways have
  been compile tested for each single patch of the series via git rebase
  -x "make ..." v5.8-rc2. arm{64} and x86{_64} have been boot tested
  even though they have just been trivially touched (removal of the
  HAVE_COPY_THREAD_TLS macro from their Kconfig) because well they are
  basically "core architectures" and since it is trivial to get your
  hands on a useable image"

* tag 'fork-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  arch: rename copy_thread_tls() back to copy_thread()
  arch: remove HAVE_COPY_THREAD_TLS
  unicore: switch to copy_thread_tls()
  sh: switch to copy_thread_tls()
  nds32: switch to copy_thread_tls()
  microblaze: switch to copy_thread_tls()
  hexagon: switch to copy_thread_tls()
  c6x: switch to copy_thread_tls()
  alpha: switch to copy_thread_tls()
  fork: remove do_fork()
  h8300: select HAVE_COPY_THREAD_TLS, switch to kernel_clone_args
  nios2: enable HAVE_COPY_THREAD_TLS, switch to kernel_clone_args
  ia64: enable HAVE_COPY_THREAD_TLS, switch to kernel_clone_args
  sparc: unconditionally enable HAVE_COPY_THREAD_TLS
  sparc: share process creation helpers between sparc and sparc64
  sparc64: enable HAVE_COPY_THREAD_TLS
  fork: fold legacy_clone_args_valid() into _do_fork()
2020-08-04 14:47:45 -07:00
Linus Torvalds
3950e97543 Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull execve updates from Eric Biederman:
 "During the development of v5.7 I ran into bugs and quality of
  implementation issues related to exec that could not be easily fixed
  because of the way exec is implemented. So I have been diggin into
  exec and cleaning up what I can.

  This cycle I have been looking at different ideas and different
  implementations to see what is possible to improve exec, and cleaning
  the way exec interfaces with in kernel users. Only cleaning up the
  interfaces of exec with rest of the kernel has managed to stabalize
  and make it through review in time for v5.9-rc1 resulting in 2 sets of
  changes this cycle.

   - Implement kernel_execve

   - Make the user mode driver code a better citizen

  With kernel_execve the code size got a little larger as the copying of
  parameters from userspace and copying of parameters from userspace is
  now separate. The good news is kernel threads no longer need to play
  games with set_fs to use exec. Which when combined with the rest of
  Christophs set_fs changes should security bugs with set_fs much more
  difficult"

* 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (23 commits)
  exec: Implement kernel_execve
  exec: Factor bprm_stack_limits out of prepare_arg_pages
  exec: Factor bprm_execve out of do_execve_common
  exec: Move bprm_mm_init into alloc_bprm
  exec: Move initialization of bprm->filename into alloc_bprm
  exec: Factor out alloc_bprm
  exec: Remove unnecessary spaces from binfmts.h
  umd: Stop using split_argv
  umd: Remove exit_umh
  bpfilter: Take advantage of the facilities of struct pid
  exit: Factor thread_group_exited out of pidfd_poll
  umd: Track user space drivers with struct pid
  bpfilter: Move bpfilter_umh back into init data
  exec: Remove do_execve_file
  umh: Stop calling do_execve_file
  umd: Transform fork_usermode_blob into fork_usermode_driver
  umd: Rename umd_info.cmdline umd_info.driver_name
  umd: For clarity rename umh_info umd_info
  umh: Separate the user mode driver and the user mode helper support
  umh: Remove call_usermodehelper_setup_file.
  ...
2020-08-04 14:27:25 -07:00