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SubjectRe: kernel BUG at net/core/skbuff.c:LINE! (3)
On Sat, Nov 30, 2019 at 3:50 PM syzbot
<syzbot+b2bf2652983d23734c5c@syzkaller.appspotmail.com> wrote:
>
> syzbot has bisected this bug to:
>
> commit 84e54fe0a5eaed696dee4019c396f8396f5a908b
> Author: William Tu <u9012063@gmail.com>
> Date: Tue Aug 22 16:40:28 2017 +0000
>
> gre: introduce native tunnel support for ERSPAN
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=158a2f86e00000
> start commit: f9f1e414 Merge tag 'for-linus-4.16-rc1-tag' of git://git.k..
> git tree: upstream
> final crash: https://syzkaller.appspot.com/x/report.txt?x=178a2f86e00000
> console output: https://syzkaller.appspot.com/x/log.txt?x=138a2f86e00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=34a80ee1ac29767b
> dashboard link: https://syzkaller.appspot.com/bug?extid=b2bf2652983d23734c5c
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=147bfebd800000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13d8d543800000
>
> Reported-by: syzbot+b2bf2652983d23734c5c@syzkaller.appspotmail.com
> Fixes: 84e54fe0a5ea ("gre: introduce native tunnel support for ERSPAN")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Humm... the repro contains syz_emit_ethernet, wonder if it's
remote-triggerable...

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