syzbot has bisected this bug to:
commit 4e645b47c4f000a503b9c90163ad905786b9bc1d
Author: Florian Westphal <fw@xxxxxxxxx>
Date: Thu Nov 30 23:21:02 2017 +0000
netfilter: core: make nf_unregister_net_hooks simple wrapper again
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1594fbfde00000
start commit: 63623fd4 Merge tag 'for-linus' of git://git.kernel.org/pub..
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=1794fbfde00000
console output: https://syzkaller.appspot.com/x/log.txt?x=1394fbfde00000
kernel config: https://syzkaller.appspot.com/x/.config?x=9833e26bab355358
dashboard link: https://syzkaller.appspot.com/bug?extid=68a8ed58e3d17c700de5
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14f08165e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17902329e00000
Reported-by: syzbot+68a8ed58e3d17c700de5@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 4e645b47c4f0 ("netfilter: core: make nf_unregister_net_hooks simple wrapper again")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
