Re: [syzbot] WARNING in hsr_forward_skb

From: Dmitry Vyukov
Date: Mon May 10 2021 - 02:10:05 EST


On Sun, May 9, 2021 at 5:16 PM syzbot
<syzbot+fdce8f2a8903f3ba0e6b@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 9d6803921a16f4d768dc41a75375629828f4d91e
> Author: Kurt Kanzenbach <kurt@xxxxxxxxxxxxx>
> Date: Tue Apr 6 07:35:09 2021 +0000
>
> net: hsr: Reset MAC header for Tx path
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=119c7fedd00000
> start commit: 3af409ca net: enetc: fix destroyed phylink dereference dur..
> git tree: net
> kernel config: https://syzkaller.appspot.com/x/.config?x=8cb23303ddb9411f
> dashboard link: https://syzkaller.appspot.com/bug?extid=fdce8f2a8903f3ba0e6b
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1525467ad00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=114c0b12d00000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: net: hsr: Reset MAC header for Tx path
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

The patch references this exact warning.

#syz fix: net: hsr: Reset MAC header for Tx path