From: Eric Paris <eparis@redhat.com>
Date: Tue, 4 Nov 2008 20:18:26 +0000 (-0500)
Subject: SELinux: hold tasklist_lock and siglock while waking wait_chldexit
X-Git-Tag: v2.6.29-rc1~588^2^2~106
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=41d9f9c524a53477467b7e0111ff3d644198f191;p=pandora-kernel.git

SELinux: hold tasklist_lock and siglock while waking wait_chldexit

SELinux has long been calling wake_up_interruptible() on
current->parent->signal->wait_chldexit without holding any locks.  It
appears that this operation should hold the tasklist_lock to dereference
current->parent and we should hold the siglock when waking up the
signal->wait_chldexit.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
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