tree b891d648d756d7195bab5c0f55f105cd00d8f94a
parent 8b6a5a37f87a414ef8636e36ec75accb27bb7508
author Eric Paris <eparis@redhat.com> 1225829906 -0500
committer James Morris <jmorris@namei.org> 1225835051 +1100

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>