netdev - Re: [patch v2] phonet: some signedness bugs

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Message-Id: <201101131432.58059.remi.denis-courmont@nokia.com>
Date:	Thu, 13 Jan 2011 14:32:57 +0200
From:	"Rémi Denis-Courmont" 
	<remi.denis-courmont@...ia.com>
To:	error27@...il.com, dan.j.rosenberg@...il.com
Cc:	netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [patch v2] phonet: some signedness bugs

On Tuesday 11 January 2011 02:06:20 ext David Miller, you wrote:
> From: Dan Carpenter <error27@...il.com>
> Date: Mon, 10 Jan 2011 17:06:58 +0300
> 
> > Dan Rosenberg pointed out that there were some signed comparison bugs
> > in the phonet protocol.
> > 
> > http://marc.info/?l=full-disclosure&m=129424528425330&w=2
> > 
> > The problem is that we check for array overflows but "protocol" is
> > signed and we don't check for array underflows.  If you have already
> > have CAP_SYS_ADMIN then you could use the bugs to get root, or someone
> > could cause an oops by mistake.
> > 
> > Signed-off-by: Dan Carpenter <error27@...il.com>
> 
> Applied.

Shouldn't this be sent to stable trees?

-- 
Rémi Denis-Courmont
Nokia Devices R&D, Maemo Software, Helsinki
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