RE: WARNING: locking bug in icmp_send

From: Jon Maloy
Date: Mon Mar 25 2019 - 12:34:40 EST


Yet another duplicate of syzbot+a25307ad099309f1c2b9@xxxxxxxxxxxxxxxxxxxxxxxxx

A fix has been posted.

///jon


> -----Original Message-----
> From: netdev-owner@xxxxxxxxxxxxxxx <netdev-owner@xxxxxxxxxxxxxxx>
> On Behalf Of syzbot
> Sent: 23-Mar-19 19:03
> To: davem@xxxxxxxxxxxxx; Jon Maloy <jon.maloy@xxxxxxxxxxxx>;
> kuznet@xxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> netdev@xxxxxxxxxxxxxxx; syzkaller-bugs@xxxxxxxxxxxxxxxx; tipc-
> discussion@xxxxxxxxxxxxxxxxxxxxx; ying.xue@xxxxxxxxxxxxx; yoshfuji@linux-
> ipv6.org
> Subject: Re: WARNING: locking bug in icmp_send
>
> syzbot has bisected this bug to:
>
> commit 52dfae5c85a4c1078e9f1d5e8947d4a25f73dd81
> Author: Jon Maloy <jon.maloy@xxxxxxxxxxxx>
> Date: Thu Mar 22 19:42:52 2018 +0000
>
> tipc: obtain node identity from interface by default
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11b6dc5d200000
> start commit: b5372fe5 exec: load_script: Do not exec truncated interpre..
> git tree: upstream
> final crash: https://syzkaller.appspot.com/x/report.txt?x=13b6dc5d200000
> console output: https://syzkaller.appspot.com/x/log.txt?x=15b6dc5d200000
> kernel config: https://syzkaller.appspot.com/x/.config?x=7132344728e7ec3f
> dashboard link:
> https://syzkaller.appspot.com/bug?extid=ba21d65f55b562432c58
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14c90fa7400000
>
> Reported-by: syzbot+ba21d65f55b562432c58@xxxxxxxxxxxxxxxxxxxxxxxxx
> Fixes: 52dfae5c85a4 ("tipc: obtain node identity from interface by default")
>
> For information about bisection process see:
> https://goo.gl/tpsmEJ#bisection