Alexei Starovoitov f59bbfc2f6 bpf: Fix error path under memory pressure ...

Restore the 'if (env->cur_state)' check that was incorrectly removed during
code move. Under memory pressure env->cur_state can be freed and zeroed inside
do_check(). Hence the check is necessary.

Fixes: 51c39bb1d5 ("bpf: Introduce function-by-function verification")
Reported-by: syzbot+b296579ba5015704d9fa@syzkaller.appspotmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20200122024138.3385590-1-ast@kernel.org

2020-01-22 12:09:02 +01:00

..

arraymap.c

bpf: Add lookup and update batch ops to arraymap

2020-01-15 14:00:35 -08:00

bpf_lru_list.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

bpf_lru_list.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

bpf_struct_ops_types.h

bpf: tcp: Support tcp_congestion_ops in bpf

2020-01-09 08:46:18 -08:00

bpf_struct_ops.c

bpf: Fix seq_show for BPF_MAP_TYPE_STRUCT_OPS

2020-01-14 09:54:31 -08:00

btf.c

bpf: Introduce function-by-function verification

2020-01-10 17:20:07 +01:00

cgroup.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

2019-12-27 14:20:10 -08:00

core.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

2019-12-27 14:20:10 -08:00

cpumap.c

xdp: Make cpumap flush_list common for all map instances

2019-12-19 21:09:43 -08:00

devmap.c

devmap: Adjust tracepoint for map-less queue flush

2020-01-16 20:03:34 -08:00

disasm.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

disasm.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

dispatcher.c

bpf: Introduce BPF dispatcher

2019-12-13 13:09:32 -08:00

hashtab.c

bpf: Add batch ops to all htab bpf map

2020-01-15 14:00:35 -08:00

helpers.c

cgroup: use cgrp->kn->id as the cgroup ID

2019-11-12 08:18:04 -08:00

inode.c

bpf: don't bother with getname/kern_path - use user_path_at

2020-01-21 23:46:21 +01:00

local_storage.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2019-12-22 09:54:33 -08:00

lpm_trie.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2019-06-22 08:59:24 -04:00

Makefile

bpf: Introduce BPF_PROG_TYPE_STRUCT_OPS

2020-01-09 08:46:18 -08:00

map_in_map.c

bpf: Introduce BPF_MAP_TYPE_STRUCT_OPS

2020-01-09 08:46:18 -08:00

map_in_map.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

offload.c

bpf, offload: Unlock on error in bpf_offload_dev_create()

2019-11-07 00:20:27 +01:00

percpu_freelist.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

percpu_freelist.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206

2019-05-30 11:29:53 -07:00

queue_stack_maps.c

bpf: move memory size checks to bpf_map_charge_init()

2019-05-31 16:52:56 -07:00

reuseport_array.c

bpf: move memory size checks to bpf_map_charge_init()

2019-05-31 16:52:56 -07:00

stackmap.c

Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2019-12-03 09:29:50 -08:00

syscall.c

bpf: Fix memory leaks in generic update/delete batch ops

2020-01-20 22:27:51 +01:00

sysfs_btf.c

btf: fix return value check in btf_vmlinux_init()

2019-08-15 22:18:17 -07:00

tnum.c

treewide: Add SPDX license identifier for missed files

2019-05-21 10:50:45 +02:00

trampoline.c

bpf: Fix trampoline usage in preempt

2020-01-22 11:31:21 +01:00

verifier.c

bpf: Fix error path under memory pressure

2020-01-22 12:09:02 +01:00

xskmap.c

xsk: Make xskmap flush_list common for all map instances

2019-12-19 21:09:43 -08:00