linux-kernel - Re: [2.6.20.17 review 00/58] 2.6.20.17 -stable review

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Date:	Thu, 23 Aug 2007 16:08:19 +0200
From:	Willy Tarreau <w@....eu>
To:	Michal Piotrowski <michal.k.k.piotrowski@...il.com>
Cc:	Stephen Smalley <sds@...ho.nsa.gov>,
	James Morris <jmorris@...ei.org>, linux-kernel@...r.kernel.org,
	stable@...nel.org
Subject: Re: [2.6.20.17 review 00/58] 2.6.20.17 -stable review

On Thu, Aug 23, 2007 at 01:13:56PM +0200, Michal Piotrowski wrote:
> Willy Tarreau pisze:
> > On Wed, Aug 22, 2007 at 03:15:14PM -0400, Stephen Smalley wrote:
> >> On Wed, 2007-08-22 at 19:50 +0200, Michal Piotrowski wrote:
> >>> On 22/08/07, Michal Piotrowski <michal.k.k.piotrowski@...il.com> wrote:
> >>>> On 22/08/07, James Morris <jmorris@...ei.org> wrote:
> >>> [snip]
> >>>>> The previous problem is theoretically unrelated.  It arose via a separate
> >>>>> mechanism which can't be used at the same as the one you're seeing now in
> >>>>> the logs.
> >>>>>
> >>>>> So this either looks like a problem which has gone unnoticed and was
> >>>>> inadvertently fixed at some point, or is unique to the 2.6.20 stable
> >>>>> series.
> >>>> Yup, it is very interesting why no one noticed it. Binary search in progress:
> >>>> good - 2.6.20.4
> >>>> bad - 2.6.20.8
> >>> Ok, I narrowed the problem to 2.6.20.7. There are a few net changes
> >>> http://eu.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.7
> >>> any suggestions?
> >>>
> >>> I also have seen this avc on 2.6.20.6 during reboot
> >>>
> >>> [ 2333.905944] audit(1187803699.273:271): avc:  denied  { send } for
> >>> saddr=192.168.1.70 src=48591 daddr=72.14.217.189 dest=80 netif=eth0
> >>> scontext=user_u:system_r:unconfined_t:s0
> >>> tcontext=system_u:system_r:kernel_t:s0 tclass=packet
> >>> [ 2334.420598] audit(1187803699.789:272): avc:  denied  { send } for
> >>> saddr=192.168.1.70 src=47248 daddr=66.249.91.18 dest=80 netif=eth0
> >>> scontext=user_u:system_r:unconfined_t:s0
> >>> tcontext=system_u:system_r:kernel_t:s0 tclass=packet
> >>>
> >>> so the roots of the problem may lie between 2.6.20.4 and 2.6.20.6
> >>>
> >>> http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/2.6.20.17-rc1/console2.log
> >> Might be related to this:
> >> http://marc.info/?l=git-commits-head&m=118271540932264&w=2
> > 
> > Interesting, this one was fixed in 2.6.22-rc6, but is neither in 2.6.20
> > nor in 2.6.21. Michal, could you please try to apply the patch ? I include
> > it here for your convenience. If it fixes your problem, I can queue it for
> > next 2.6.20-stable, and forward it to the -stable team for 2.6.21 in case
> > Greg and Chris plan to release another one.
> > 
> 
> I confirm that this patch fixes the problem.

Perfect, thanks for your fast feedback, it is really appreciated !
I'm queuing it for 2.6.20.18.

Regards,
Willy

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