syzbot has bisected this bug to: commit 3427b2ab63faccafe774ea997fc2da7faf690c5a Author: Cong Wang <xiyou.wangcong@xxxxxxxxx> Date: Fri Mar 2 02:58:38 2018 +0000 netfilter: make xt_rateest hash table per net bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=129b9c35e00000 start commit: e69ec487 Merge branch 'for-linus' of git://git.kernel.org/.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=119b9c35e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=169b9c35e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=18698c0c240ba616 dashboard link: https://syzkaller.appspot.com/bug?extid=91bdd8eece0f6629ec8b syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13dbd58ee00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15eff9e1e00000 Reported-by: syzbot+91bdd8eece0f6629ec8b@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 3427b2ab63fa ("netfilter: make xt_rateest hash table per net") For information about bisection process see: https://goo.gl/tpsmEJ#bisection