From: Hannes Frederic Sowa <hannes@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 08 Apr 2015 01:24:59 +0200
> There is one small problem which already was present before this patch
> because of my change b6a7719aedd7e5 ("ipv4: hash net ptr into
> fragmentation bucket selection"). It uses sock_net in iptunnel_xmit,
> which causes a NULL ptr panic. This patchset did make it more visible
> because of the explicit NULL passing but the bug was introduced by my
> patch.
>
> Just wanted to let you know if reports are coming in - I fix it up
> tomorrow. I will also explore the possibility to give each tunnel at
> least a raw socket, what Tom proposed.
>
> Rick Jones identified this, thanks!
Looking into this I also notice that ipip6_tunnel_xmit() passes
in skb->sk, that needs to be NULL too.
Want to take care of that along with your sock_net() fix?
Thanks!
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