Re: [syzbot] WARNING in bpf_warn_invalid_xdp_action

[Dmitry Vyukov]

On Thu, 10 Feb 2022 at 10:29, syzbot
<syzbot+8ce4113dadc4789fac74@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 2cbad989033bff0256675c38f96f5faab852af4b
> Author: Paolo Abeni <pabeni@xxxxxxxxxx>
> Date:   Tue Nov 30 10:08:06 2021 +0000
>
>     bpf: Do not WARN in bpf_warn_invalid_xdp_action()
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10d50baa700000
> start commit:   b3c8e0de473e Merge branch '40GbE' of git://git.kernel.org/..
> git tree:       net
> kernel config:  https://syzkaller.appspot.com/x/.config?x=1a86c22260afac2f
> dashboard link: https://syzkaller.appspot.com/bug?extid=8ce4113dadc4789fac74
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=113c8a3bb00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16eb4307b00000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: bpf: Do not WARN in bpf_warn_invalid_xdp_action()

Looks legit:

#syz fix: bpf: Do not WARN in bpf_warn_invalid_xdp_action()