netdev - Re: general protection fault in sit_exit_batch

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Date:   Wed, 02 Oct 2019 17:39:01 -0700
From:   syzbot <syzbot+1695af5ca559927e2db8@...kaller.appspotmail.com>
To:     davem@...emloft.net, edumazet@...gle.com, f.fainelli@...il.com,
        gbastien@...satic.net, idosch@...lanox.com, jiri@...lanox.com,
        kuznet@....inr.ac.ru, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, pabeni@...hat.com, petrm@...lanox.com,
        sd@...asysnail.net, stephen@...workplumber.org,
        syzkaller-bugs@...glegroups.com, willemb@...gle.com,
        yoshfuji@...ux-ipv6.org
Subject: Re: general protection fault in sit_exit_batch_net

syzbot has bisected this bug to:

commit ff92741270bf8b6e78aa885f166b68c7a67ab13a
Author: Jiri Pirko <jiri@...lanox.com>
Date:   Mon Sep 30 09:48:15 2019 +0000

     net: introduce name_node struct to be used in hashlist

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13719e33600000
start commit:   c01ebd6c r8152: Use guard clause and fix comment typos
git tree:       net-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=10f19e33600000
console output: https://syzkaller.appspot.com/x/log.txt?x=17719e33600000
kernel config:  https://syzkaller.appspot.com/x/.config?x=6ffbfa7e4a36190f
dashboard link: https://syzkaller.appspot.com/bug?extid=1695af5ca559927e2db8
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1156242b600000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17253b19600000

Reported-by: syzbot+1695af5ca559927e2db8@...kaller.appspotmail.com
Fixes: ff92741270bf ("net: introduce name_node struct to be used in  
hashlist")

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