linux-kernel - Re: [49/74] netfilter: h323: bug in parsing of ASN1 SEQOF field

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Message-ID: <20110413161716.GA20829@suse.de>
Date:	Wed, 13 Apr 2011 09:17:16 -0700
From:	Greg KH <gregkh@...e.de>
To:	Patrick McHardy <kaber@...sh.net>
Cc:	linux-kernel@...r.kernel.org, stable@...nel.org,
	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	David Sterba <dsterba@...e.cz>
Subject: Re: [49/74] netfilter: h323: bug in parsing of ASN1 SEQOF field

On Wed, Apr 13, 2011 at 06:03:39PM +0200, Patrick McHardy wrote:
> Am 13.04.2011 17:51, schrieb Greg KH:
> > 2.6.32-longterm review patch.  If anyone has any objections, please let us know.
> > 
> > ------------------
> > 
> > From: David Sterba <dsterba@...e.cz>
> > 
> > commit b4232a22776aa5d063f890d21ca69870dbbe431b upstream.
> > 
> > Static analyzer of clang found a dead store which appears to be a bug in
> > reading count of items in SEQOF field, only the lower byte of word is
> > stored. This may lead to corrupted read and communication shutdown.
> > 
> > The bug has been in the module since it's first inclusion into linux
> > kernel.
> > 
> > [Patrick: the bug is real, but without practical consequence since the
> >  largest amount of sequence-of members we parse is 30.]
> 
> As mentioned in the changelog, I don't think this patch is of any
> relevance for -stable since its a purely theoretical problem.

Ok, thanks, now removed from the queue.

greg k-h
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