Re: [patch 00/50] 2.6.25.6 -stable review

From: Willy Tarreau
Date: Sun Jun 08 2008 - 08:36:29 EST


On Sun, Jun 08, 2008 at 01:56:01PM +0200, Marco Berizzi wrote:
> Willy Tarreau wrote:
>
> > On Sat, Jun 07, 2008 at 10:27:58PM +0200, Marco Berizzi wrote:
> >> David Miller wrote:
> >>
> >> > From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
> >> > Date: Tue, 20 May 2008 17:25:11 +0800
> >> >
> >> >> On Wed, May 14, 2008 at 10:19:57AM +0200, Marco Berizzi wrote:
> >> >> >
> >> >> > I hope this helps.
> >> >>
> >> >> OK found the problem, it was my fault after all :)
> >> >>
> >> >> Dave, this patch needs to go into stable too.
> >> >>
> >> >> [IPSEC]: Use the correct ip_local_out function
> >> >>
> >> >> Because the IPsec output function xfrm_output_resume does its
> >> >> own dst_output call it should always call __ip_local_output
> >> >> instead of ip_local_output as the latter may invoke dst_output
> >> >> directly. Otherwise the return values from nf_hook and dst_output
> >> >> may clash as they both use the value 1 but for different purposes.
> >> >>
> >> >> When that clash occurs this can cause a packet to be used after
> >> >> it has been freed which usually leads to a crash. Because the
> >> >> offending value is only returned from dst_output with qdiscs
> >> >> such as HTB, this bug is normally not visible.
> >> >>
> >> >> Thanks to Marco Berizzi for his perseverance in tracking this
> >> >> down.
> >> >>
> >> >> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
> >> >
> >> > Applied and queued to -stable, thanks!
> >>
> >> Hi David,
> >>
> >> I don't see this patch in Chris 2.6.25.6 -stable review message.
> >
> > Is it already in mainline ?
>
> yes, since 2008/05/20
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1ac06e0306d0192a7a4d9ea1c9e06d355ce7e7d3

Indeed. Most likely it was simply lost somewhere in the e-mail chain.
Then best thing to do is to retransmit it for next batch of patches.
Chris, here's the fix in question.

Thanks,
Willy
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