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(parent: 1cf6e7d) | patch
cgroups: fix possible use after free
authorLi Zefan <lizf@cn.fujitsu.com>
Wed, 18 Feb 2009 22:48:20 +0000 (14:48 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 18 Feb 2009 23:37:54 +0000 (15:37 -0800)
commit67e055d144c5b2acdc1c63811fde031263bf92c5
tree6bdb0af25cc30d7bc8a8d54db3625f8486c2f5f9tree | snapshot
parent1cf6e7d83bf334cc5916137862c920a97aabc018commit | diff
cgroups: fix possible use after free

In cgroup_kill_sb(), root is freed before sb is detached from the list, so
another sget() may find this sb and call cgroup_test_super(), which will
access the root that has been freed.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/cgroup.c diff | blob | history
Domain: System / Uncategorized;