linux-kernel - Re: [PATCH] lz4: add overrun checks to lz4_uncompress

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Date:	Fri, 04 Jul 2014 07:12:56 +0100
From:	"Jan Beulich" <JBeulich@...e.com>
To:	"Greg KH" <gregkh@...uxfoundation.org>
Cc:	<stable@...nel.org>, "Don A. Bailey" <donb@...uritymouse.com>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] lz4: add overrun checks to
 lz4_uncompress_unknownoutputsize()

>>> On 04.07.14 at 01:11, <gregkh@...uxfoundation.org> wrote:
> From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> 
> Jan points out that I forgot to make the needed fixes to the
> lz4_uncompress_unknownoutputsize() function to mirror the changes done
> in lz4_decompress() with regards to potential pointer overflows.

Except that meanwhile Don agreed with my statement that neither
this nor the two earlier patches really fix the issue. So rather than
pushing this into 3.16 and stable trees, I wonder whether the two
earlier ones shouldn't be reverted and then a clean and correct
fix be applied.

Jan

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