David Miller wrote:

From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue, 20 May 2008 17:25:11 +0800

quoted

On Wed, May 14, 2008 at 10:19:57AM +0200, Marco Berizzi wrote:

quoted

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@gondor.apana.org.au>

Applied and queued to -stable, thanks!

Just a confirmation message that this bug has been fixed
(one week uptime).