netdev - Re: [PATCH v2 bpf-next] bpf: test_bpf: add init_net to dev for flow

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Date:   Thu, 27 Sep 2018 21:13:16 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Cc:     songliubraving@...com,
        Network Development <netdev@...r.kernel.org>,
        Kernel Team <kernel-team@...com>,
        Willem de Bruijn <willemb@...gle.com>,
        Petar Penkov <ppenkov@...gle.com>
Subject: Re: [PATCH v2 bpf-next] bpf: test_bpf: add init_net to dev for
 flow_dissector

On 09/27/2018 06:42 PM, Willem de Bruijn wrote:
> On Thu, Sep 27, 2018 at 12:40 PM Eric Dumazet <eric.dumazet@...il.com> wrote:
>> On 09/27/2018 09:34 AM, Song Liu wrote:
>>> Latest changes in __skb_flow_dissect() assume skb->dev has valid nd_net.
>>> However, this is not true for test_bpf. As a result, test_bpf.ko crashes
>>> the system with the following stack trace:
>>>
>>> This patch fixes tes_bpf by using init_net in the dummy dev.
>>>
>>> Fixes: d58e468b1112 ("flow_dissector: implements flow dissector BPF hook")
>>> Reported-by: Eric Dumazet <edumazet@...gle.com>
>>> Cc: Willem de Bruijn <willemb@...gle.com>
>>> Cc: Petar Penkov <ppenkov@...gle.com>
>>> Signed-off-by: Song Liu <songliubraving@...com>
>>> ---
>>
>> Reviewed-by: Eric Dumazet <edumazet@...gle.com>
> 
> Acked-by: Willem de Bruijn <willemb@...gle.com>
> 
> Thanks!

Applied to bpf-next, thanks everyone!