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[PATCH] xacct_add_tsk: fix pure theoretical ->mm use-after-free
authorOleg Nesterov <oleg@tv-sign.ru>
Mon, 30 Oct 2006 06:46:43 +0000 (22:46 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Mon, 30 Oct 2006 20:08:41 +0000 (12:08 -0800)
commit0bb0609f08d1f6759f95c73a0c86a3288dde93c9
tree61202a09a030d659064df65e127b9be1c571c48ctree | snapshot
parent99f3b7bc3041087d66d24cfffc5c45b55bbdd355commit | diff
[PATCH] xacct_add_tsk: fix pure theoretical ->mm use-after-free

Paranoid fix. The task can free its ->mm after the 'if (p->mm)' check.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Jay Lan <jlan@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
kernel/tsacct.c diff | blob | history
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