From: Eric Dumazet <eric.duma...@gmail.com> Date: Tue, 17 Oct 2017 10:07:44 -0700
> From: Eric Dumazet <eduma...@google.com>
>
> syzkaller hit the WARN() in tun_get_user(), providing skb
> with payload in fragments only, and nothing in skb->head
>
> GRO layer is fine with this, so relax the check.
>
> Fixes: 90e33d459407 ("tun: enable napi_gro_frags() for TUN/TAP driver")
> Signed-off-by: Eric Dumazet <eduma...@google.com>
Applied.
