* Re: BUG: unable to handle kernel paging request in corrupted (2)
[not found] <000000000000d8b010058e03aaf8@google.com>
@ 2019-07-19 11:56 ` syzbot
2019-07-23 7:35 ` Dmitry Vyukov
0 siblings, 1 reply; 2+ messages in thread
From: syzbot @ 2019-07-19 11:56 UTC (permalink / raw)
To: dave.stevenson, davem, linux-kernel, linux-usb, netdev,
syzkaller-bugs, unglinuxdriver, woojung.huh
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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: BUG: unable to handle kernel paging request in corrupted (2)
2019-07-19 11:56 ` BUG: unable to handle kernel paging request in corrupted (2) syzbot
@ 2019-07-23 7:35 ` Dmitry Vyukov
0 siblings, 0 replies; 2+ messages in thread
From: Dmitry Vyukov @ 2019-07-23 7:35 UTC (permalink / raw)
To: syzbot
Cc: dave.stevenson, David Miller, LKML, USB list, netdev,
syzkaller-bugs, unglinuxdriver, woojung.huh, John Fastabend
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
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2019-07-19 11:56 ` BUG: unable to handle kernel paging request in corrupted (2) syzbot
2019-07-23 7:35 ` Dmitry Vyukov
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