Re: kernel BUG at net/ipv4/ip_output.c:LINE!

[Willem de Bruijn]

On Thu, Nov 7, 2019 at 8:42 AM syzbot
<syzbot+90d5ec0c05e708f3b66d@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> syzbot suspects this bug was fixed by commit:
>
> commit e7c87bd6cc4ec7b0ac1ed0a88a58f8206c577488
> Author: Willem de Bruijn <willemb@xxxxxxxxxx>
> Date:   Wed Jan 16 01:19:22 2019 +0000
>
>      bpf: in __bpf_redirect_no_mac pull mac only if present
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14175486600000
> start commit:   112cbae2 Merge branch 'linus' of git://git.kernel.org/pub/..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=152cb8ccd35b1f70
> dashboard link: https://syzkaller.appspot.com/bug?extid=90d5ec0c05e708f3b66d
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=153ed6e2400000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1539038c400000
>
> If the result looks correct, please mark the bug fixed by replying with:
>
> #syz fix: bpf: in __bpf_redirect_no_mac pull mac only if present

#syz fix: bpf: in __bpf_redirect_no_mac pull mac only if present