From: Serge Hallyn <serge.hallyn@canonical.com>
Date: Mon, 26 Sep 2011 15:18:29 +0000 (-0500)
Subject: USB: pid_ns: ensure pid is not freed during kill_pid_info_as_uid
X-Git-Tag: v3.2-rc1~183^2~111
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aec01c5895051849ed842dc5b8794017a7751f28;p=pandora-kernel.git

USB: pid_ns: ensure pid is not freed during kill_pid_info_as_uid

Alan Stern points out that after spin_unlock(&ps->lock) there is no
guarantee that ps->pid won't be freed.  Since kill_pid_info_as_uid() is
called after the spin_unlock(), the pid passed to it must be pinned.

Reported-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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