From: Dmitry Vyukov <dvyukov@google.com>
To: syzbot <syzbot+d89b30c46434c433dbf8@syzkaller.appspotmail.com>
Cc: Chris von Recklinghausen <crecklin@redhat.com>,
David Miller <davem@davemloft.net>,
Kees Cook <keescook@chromium.org>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
LKML <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>,
linux-net@vger.kernel.org, netdev <netdev@vger.kernel.org>,
Stefano Brivio <sbrivio@redhat.com>,
Sabrina Dubroca <sd@queasysnail.net>,
syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
Matthew Wilcox <willy@infradead.org>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Subject: Re: WARNING: bad usercopy in corrupted (2)
Date: Wed, 20 Mar 2019 10:39:59 +0100 [thread overview]
Message-ID: <CACT4Y+a=9DQhgq243k9c6SPiyAhDQG5y2GqT4Da_P97t5n4Brw@mail.gmail.com> (raw)
In-Reply-To: <000000000000c7bd5c05847bfcab@google.com>
On Wed, Mar 20, 2019 at 1:49 AM syzbot
<syzbot+d89b30c46434c433dbf8@syzkaller.appspotmail.com> wrote:
>
> syzbot has bisected this bug to:
>
> commit b8a51b38e4d4dec3e379d52c0fe1a66827f7cf1e
> Author: Stefano Brivio <sbrivio@redhat.com>
> Date: Thu Nov 8 11:19:23 2018 +0000
>
> fou, fou6: ICMP error handlers for FoU and GUE
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14a57f83200000
> start commit: b8a51b38 fou, fou6: ICMP error handlers for FoU and GUE
> git tree: net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=12a57f83200000
> kernel config: https://syzkaller.appspot.com/x/.config?x=c36a72af2123e78a
> dashboard link: https://syzkaller.appspot.com/bug?extid=d89b30c46434c433dbf8
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=170f6a47400000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12e1df7b400000
>
> Reported-by: syzbot+d89b30c46434c433dbf8@syzkaller.appspotmail.com
> Fixes: b8a51b38 ("fou, fou6: ICMP error handlers for FoU and GUE")
That commit caused lots of crashes that look completely differently.
Now all that is fixed. The last crash for this bugs happened 2+ months
ago. So let's just do:
#syz fix: fou: Prevent unbounded recursion in GUE error handler also
with UDP-Lite
prev parent reply other threads:[~2019-03-20 9:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-25 15:30 WARNING: bad usercopy in corrupted (2) syzbot
2018-11-25 21:27 ` Matthew Wilcox
2018-11-25 23:07 ` Matthew Wilcox
2018-11-26 9:01 ` Dmitry Vyukov
2019-03-20 0:49 ` syzbot
2019-03-20 9:39 ` Dmitry Vyukov [this message]
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