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 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile kbuild: move bin2c back to scripts/ from scripts/basic/ 2018-07-18 01:18:05 +09:00
audit.c tomoyo: Coding style fix. 2019-01-24 14:50:27 -08:00
common.c tomoyo: Use atomic_t for statistics counter 2020-02-05 21:22:41 +00:00
common.h tomoyo: Bump version. 2019-02-19 14:17:25 -08:00
condition.c tomoyo: Coding style fix. 2019-01-24 14:50:27 -08:00
domain.c tomoyo: Suppress RCU warning at list_for_each_entry_rcu(). 2020-01-17 19:49:05 +01:00
environ.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
file.c tomoyo: Coding style fix. 2019-01-24 14:50:27 -08:00
gc.c tomoyo: Coding style fix. 2019-01-24 14:50:27 -08:00
group.c tomoyo: Suppress RCU warning at list_for_each_entry_rcu(). 2020-01-17 19:49:05 +01:00
load_policy.c tomoyo: Coding style fix. 2019-01-24 14:50:27 -08:00
memory.c tomoyo: Coding style fix. 2019-01-24 14:50:27 -08:00
mount.c tomoyo: Coding style fix. 2019-01-24 14:50:27 -08:00
network.c tomoyo: Check address length before reading address family 2019-05-10 14:58:25 -07:00
realpath.c tomoyo: Don't use nifty names on sockets. 2020-01-04 19:18:42 +01:00
securityfs_if.c tomoyo: Coding style fix. 2019-01-24 14:50:27 -08:00
tomoyo.c tomoyo: Coding style fix. 2019-01-24 14:50:27 -08:00
util.c tomoyo: Suppress RCU warning at list_for_each_entry_rcu(). 2020-01-17 19:49:05 +01:00