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authorOleg Nesterov <oleg@redhat.com>2009-06-17 00:27:10 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-16 15:36:17 -0700
commit8eeee4e2f04fc551f50c9d9847da2d73d7d33728 (patch)
treec5b7a2c9b912369c82506f8363b8eb10538f5d8e /fs/drop_caches.c
parentf83b1e616f2f68b56b09b2f5116591981fee0c1c (diff)
downloadlinux-8eeee4e2f04fc551f50c9d9847da2d73d7d33728.tar.gz
send_sigio_to_task: sanitize the usage of fown->signum
send_sigio_to_task() reads fown->signum several times, we can race with F_SETSIG which changes ->signum lockless. In theory, this can fool security checks or we can call group_send_sig_info() with the wrong ->si_signo which does not match "int sig". Change the code to cache ->signum. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/drop_caches.c')
0 files changed, 0 insertions, 0 deletions