linux-kernel - apparmor: double lock

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Message-ID: <4C823419.6050906@gmail.com>
Date:	Sat, 04 Sep 2010 13:57:13 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	John Johansen <john.johansen@...onical.com>
CC:	James Morris <jmorris@...ei.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: apparmor: double lock

Hi,

stanse found that you possibly double lock ns->lock:
aa_remove_profiles
  -> write_lock(&ns->lock)
  -> __remove_namespace(ns)
    -> destroy_namespace(ns)
      -> write_lock(&ns->lock)

Could you fix that if that may happen at all?

regards,
-- 
js
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