tree ba7d1ca513641167f61d8d8bb56b832f63d98bca
parent b2a740aab8f3bc2fd9f01528e39607bd9a1f0da6
author Li Zefan <lizf@cn.fujitsu.com> 1233908239 +0000
committer Linus Torvalds <torvalds@linux-foundation.org> 1233938591 -0800

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>