linux/security/tomoyo
Tetsuo Handa 99652ee9c5 tomoyo: Use atomic_t for statistics counter
commit a8772fad01 upstream.

syzbot is reporting that there is a race at tomoyo_stat_update() [1].
Although it is acceptable to fail to track exact number of times policy
was updated, convert to atomic_t because this is not a hot path.

[1] https://syzkaller.appspot.com/bug?id=a4d7b973972eeed410596e6604580e0133b0fc04

Reported-by: syzbot <syzbot+efea72d4a0a1d03596cd@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-05 21:22:41 +00:00
..
policy
.gitignore
Kconfig
Makefile
audit.c
common.c tomoyo: Use atomic_t for statistics counter 2020-02-05 21:22:41 +00:00
common.h
condition.c
domain.c
environ.c
file.c
gc.c
group.c
load_policy.c
memory.c
mount.c
network.c
realpath.c
securityfs_if.c
tomoyo.c
util.c