syzbot has bisected this bug to:
commit 23c42a403a9cfdbad6004a556c927be7dd61a8ee
Author: Jozsef Kadlecsik <kadlec@xxxxxxxxxxxxxxxxx>
Date: Sat Oct 27 13:07:40 2018 +0000
netfilter: ipset: Introduction of new commands and protocol version 7
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16b9d5fee00000
start commit: c101fffc Merge tag 'mlx5-fixes-2020-01-06' of git://git.ke..
git tree: net
final crash: https://syzkaller.appspot.com/x/report.txt?x=15b9d5fee00000
console output: https://syzkaller.appspot.com/x/log.txt?x=11b9d5fee00000
kernel config: https://syzkaller.appspot.com/x/.config?x=f2f3ef188b7e16cf
dashboard link: https://syzkaller.appspot.com/bug?extid=cabfabc5c6bf63369d04
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14896eb9e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=139ed115e00000
Reported-by: syzbot+cabfabc5c6bf63369d04@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 23c42a403a9c ("netfilter: ipset: Introduction of new commands and
protocol version 7")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
