syzbot has bisected this bug to:
commit 7c23b629a8085b11daccd68c62b5116ff498f84a
Author: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Date: Sun Jan 7 00:04:22 2018 +0000
netfilter: flow table support for the mixed IPv4/IPv6 family
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=146472d1e00000
start commit: 51d69817 Merge tag 'platform-drivers-x86-v5.5-3' of git://..
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=166472d1e00000
console output: https://syzkaller.appspot.com/x/log.txt?x=126472d1e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=d9290aeb7e6cf1c4
dashboard link: https://syzkaller.appspot.com/bug?extid=37a6804945a3a13b1572
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17241c76e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13118315e00000
Reported-by: syzbot+37a6804945a3a13b1572@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 7c23b629a808 ("netfilter: flow table support for the mixed IPv4/IPv6
family")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
