From: Dmitry Vyukov <dvyukov@google.com>
To: syzbot <syzbot+08b7a2c58acdfa12c82d@syzkaller.appspotmail.com>
Cc: dave.stevenson@raspberrypi.org,
David Miller <davem@davemloft.net>,
LKML <linux-kernel@vger.kernel.org>,
USB list <linux-usb@vger.kernel.org>,
netdev <netdev@vger.kernel.org>,
syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
unglinuxdriver@microchip.com, woojung.huh@microchip.com,
John Fastabend <john.fastabend@gmail.com>
Subject: Re: BUG: unable to handle kernel paging request in corrupted (2)
Date: Tue, 23 Jul 2019 09:35:14 +0200 [thread overview]
Message-ID: <CACT4Y+Z7r7iLnccJtZGJhmEY=EESw6XYKTJZwGXwvSKVNfHW1Q@mail.gmail.com> (raw)
In-Reply-To: <000000000000fcdf6c058e076819@google.com>
On Fri, Jul 19, 2019 at 1:56 PM syzbot
<syzbot+08b7a2c58acdfa12c82d@syzkaller.appspotmail.com> wrote:
>
> syzbot has bisected this bug to:
>
> commit 9343ac87f2a4e09bf6e27b5f31e72e9e3a82abff
> Author: Dave Stevenson <dave.stevenson@raspberrypi.org>
> Date: Mon Jun 25 14:07:15 2018 +0000
>
> net: lan78xx: Use s/w csum check on VLANs without tag stripping
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=102feb84600000
> start commit: 49d05fe2 ipv6: rt6_check should return NULL if 'from' is N..
> git tree: net
> final crash: https://syzkaller.appspot.com/x/report.txt?x=122feb84600000
> console output: https://syzkaller.appspot.com/x/log.txt?x=142feb84600000
> kernel config: https://syzkaller.appspot.com/x/.config?x=87305c3ca9c25c70
> dashboard link: https://syzkaller.appspot.com/bug?extid=08b7a2c58acdfa12c82d
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=143a78f4600000
>
> Reported-by: syzbot+08b7a2c58acdfa12c82d@syzkaller.appspotmail.com
> Fixes: 9343ac87f2a4 ("net: lan78xx: Use s/w csum check on VLANs without tag
> stripping")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
From the repro it looks like the same bpf stack overflow bug. +John
We need to dup them onto some canonical report for this bug, or this
becomes unmanageable.
#syz dup: kernel panic: corrupted stack end in dput
prev parent reply other threads:[~2019-07-23 7:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-19 7:28 BUG: unable to handle kernel paging request in corrupted (2) syzbot
2019-07-19 11:56 ` syzbot
2019-07-23 7:35 ` Dmitry Vyukov [this message]
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