Re: WARNING in geneve_exit_batch_net (2)

[syzbot]

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