netdev - Re: kernel BUG at net/ipv4/ip

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Message-ID: <000000000000e51d450596c1d472@google.com>
Date:   Thu, 07 Nov 2019 05:42:08 -0800
From:   syzbot <syzbot+90d5ec0c05e708f3b66d@...kaller.appspotmail.com>
To:     ast@...nel.org, bpf@...r.kernel.org, daniel@...earbox.net,
        davem@...emloft.net, dsahern@...il.com, johannes.berg@...el.com,
        kafai@...com, kuznet@....inr.ac.ru, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, posk@...gle.com, songliubraving@...com,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        willemb@...gle.com, yhs@...com, yoshfuji@...ux-ipv6.org
Subject: Re: kernel BUG at net/ipv4/ip_output.c:LINE!

syzbot suspects this bug was fixed by commit:

commit e7c87bd6cc4ec7b0ac1ed0a88a58f8206c577488
Author: Willem de Bruijn <willemb@...gle.com>
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

For information about bisection process see: https://goo.gl/tpsmEJ#bisection