linux-kernel - Re: [stable] [PATCH] XZ decompressor: Fix decoding of empty LZMA2 streams

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Message-ID: <20110504231146.GF26011@kroah.com>
Date:	Wed, 4 May 2011 16:11:46 -0700
From:	Greg KH <greg@...ah.com>
To:	Lasse Collin <lasse.collin@...aani.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, stable@...nel.org
Subject: Re: [stable] [PATCH] XZ decompressor: Fix decoding of empty LZMA2
 streams

On Wed, May 04, 2011 at 01:22:36AM +0300, Lasse Collin wrote:
> On 2011-05-04 Andrew Morton wrote:
> > Lasse Collin <lasse.collin@...aani.org> wrote:
> > > From: Lasse Collin <lasse.collin@...aani.org>
> > > 
> > > The old code considered valid empty LZMA2 streams to be corrupt.
> > > Note that a typical empty .xz file has no LZMA2 data at all,
> > > and thus most .xz files having no uncompressed data are handled
> > > correctly even without this fix.
> > > 
> > > Signed-off-by: Lasse Collin <lasse.collin@...aani.org>
> > 
> > The patch didn't have the cc:stable tag, but appears to be needed in
> > 2.6.38.x and perhaps earlier, yes?
> > 
> > It's commit 646032e3b05b32d3f20cb108a030593d9d792eb5 in mainline.
> 
> Thanks. It's good for 2.6.38.x. Older ones don't have XZ support.

Now queued up, thanks.

greg k-h
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