On 09/27/2018 12:15 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 adding a dummy struct net to the dummy dev.
>
> Fixes: d0e13a1488ad ("flow_dissector: lookup netns by skb->sk if skb->dev is
> NULL")
> Fixes: d58e468b1112 ("flow_dissector: implements flow dissector BPF hook")
> Cc: Willem de Bruijn <[email protected]>
> Cc: Petar Penkov <[email protected]>
> Signed-off-by: Song Liu <[email protected]>
Reported-by: Eric Dumazet <[email protected]>
Thanks.
