]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
fork.c: fix NULL pointer dereference when nr_threads == threads-max
authorLi Zefan <lizf@cn.fujitsu.com>
Fri, 6 Feb 2009 08:17:19 +0000 (08:17 +0000)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 6 Feb 2009 16:43:11 +0000 (08:43 -0800)
commit04ec93fe9bc98e3bd8560f79f56fed66dfae40d5
treeba7d1ca513641167f61d8d8bb56b832f63d98bca
parentb2a740aab8f3bc2fd9f01528e39607bd9a1f0da6
fork.c: fix NULL pointer dereference when nr_threads == threads-max

I happened to forked lots of processes, and hit NULL pointer dereference.
It is because in copy_process() after checking max_threads, 0 is returned
but not -EAGAIN.

The bug is introduced by "CRED: Detach the credentials from task_struct"
(commit f1752eec6145c97163dbce62d17cf5d928e28a27).

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/fork.c