linux-kernel - Re: [PATCH] ip6_offload: check segs for NULL in ipv6_gso

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Message-ID: <20161202115731.ydq322564t62g7jd@shodan.usersys.redhat.com>
Date:   Fri, 2 Dec 2016 12:57:31 +0100
From:   Artem Savkov <asavkov@...hat.com>
To:     Don Bowman <db@...bowman.ca>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ip6_offload: check segs for NULL in ipv6_gso_segment.

On Thu, Dec 01, 2016 at 09:47:17PM -0500, Don Bowman wrote:
> I have been having this problem (4.9rc6).
> I applied this patch.
> I still have the problem.
> 
> My stack trace (attached as image, i did not get it in text) is:
> 
> ipv6_gso_segment
> skb_mac_gso_segment
> __skb_gso_segment
> validate_xmit_skb
> sch_direct_xmit
> __dev_queue_xmit
> macvlan_start
> 
>  ..
> 
> I think the macvlan is important (it does not seem to occur on my VM
> that are not macvtap).

I don't see any way that the same problem may get reproduced in
ipv6_gso_segment with that patch applied, so this must be a different
issue.

-- 
Regards,
  Artem