linux/security/yama
Kees Cook 9474f4e7cd Yama: Check for pid death before checking ancestry
It's possible that a pid has died before we take the rcu lock, in which
case we can't walk the ancestry list as it may be detached. Instead, check
for death first before doing the walk.

Reported-by: syzbot+a9ac39bf55329e206219@syzkaller.appspotmail.com
Fixes: 2d514487fa ("security: Yama LSM")
Cc: stable@vger.kernel.org
Suggested-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: James Morris <james.morris@microsoft.com>
2019-01-16 12:00:56 -08:00
..
Kconfig doc: ReSTify Yama.txt 2017-05-18 10:33:04 -06:00
Makefile
yama_lsm.c Yama: Check for pid death before checking ancestry 2019-01-16 12:00:56 -08:00