netdev - Re: [PATCH net] udp: fix a potential panic in first_packet

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Date:   Thu, 09 Feb 2017 09:54:20 -0800
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Paolo Abeni <pabeni@...hat.com>
Cc:     David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Andrey Konovalov <andreyknvl@...gle.com>
Subject: Re: [PATCH net] udp: fix a potential panic in first_packet_length()

On Thu, 2017-02-09 at 18:01 +0100, Paolo Abeni wrote:
>  
> 
> My bad, I missed completely that call path.
> 
> I'm wondering if calling first_packet_length() for l2tp_ip sockets
> makes sense ?!? Am I missing something or it touches udp stats and
> checks udp csum for non udp packets ?!?

Yes, I guess this is a good point.

I will send a v2, thanks.