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(parent: 3c1d554) | patch
fix freeing user_struct in user cache
authorHillf Danton <dhillf@gmail.com>
Wed, 29 Dec 2010 13:55:28 +0000 (21:55 +0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 7 Jan 2011 21:58:42 +0000 (13:58 -0800)
commitc9009e7208be5a127d302a63602af1a6f15b17d9
treedbc63cf1f5596097ecf434f601c4955308c04476tree | snapshot
parent3c1d55408817cce6fb21d95b1cad3ba0af041c9fcommit | diff
fix freeing user_struct in user cache

commit 4ef9e11d6867f88951e30db910fa015300e31871 upstream.

When racing on adding into user cache, the new allocated from mm slab
is freed without putting user namespace.

Since the user namespace is already operated by getting, putting has
to be issued.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Acked-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
kernel/user.c diff | blob | history
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