linux-kernel - Re: [PATCH] ocfs2: Fix NULL pointer dereferrence in __ocfs2_change_file

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Message-ID: <20120621061228.GG21923@dhcp-172-17-9-228.mtv.corp.google.com>
Date:	Wed, 20 Jun 2012 23:12:29 -0700
From:	Joel Becker <jlbec@...lplan.org>
To:	Mark Fasheh <mfasheh@...e.de>
Cc:	Luis Henriques <luis.henriques@...onical.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Bret Towe <magnade@...il.com>, linux-kernel@...r.kernel.org,
	ocfs2-devel@....oracle.com, sunil.mushran@...cle.com
Subject: Re: [PATCH] ocfs2: Fix NULL pointer dereferrence in
 __ocfs2_change_file_space

On Wed, Jun 20, 2012 at 04:18:23PM -0700, Mark Fasheh wrote:
> This should've been upstream a while ago  :/

Indeed.  I've been fighting my kernel.org setup and life since December.
Sorry I dropped the ball on this one.

Joel

> 
> On Wed, Jun 20, 2012 at 11:34:44PM +0100, Luis Henriques wrote:
> > As ocfs2_fallocate() will invoke __ocfs2_change_file_space() with a NULL
> > as the first parameter (file), it may trigger a NULL pointer dereferrence
> > due to a missing check.  See http://bugs.launchpad.net/bugs/1006012.
> > 
> > Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
> 
> Signed-off-by: Mark Fasheh <mfasheh@...e.de>
> 	--Mark
> 
> --
> Mark Fasheh

-- 

 There are morethings in heaven and earth, Horatio,
 Than are dreamt of in your philosophy.

			http://www.jlbec.org/
			jlbec@...lplan.org
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