[   39.116435] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[   65.667570] NOHZ: local_softirq_pending 08
[  147.581089] NOHZ: local_softirq_pending 08
[  157.180468] NOHZ: local_softirq_pending 08
[  170.617770] NOHZ: local_softirq_pending 08
[  177.658858] NOHZ: local_softirq_pending 08
[  177.663935] NOHZ: local_softirq_pending 08
[  191.095781] NOHZ: local_softirq_pending 08
[  361.972371] NOHZ: local_softirq_pending 08
[  443.876803] NOHZ: local_softirq_pending 08
[  455.132271] syz-executor.1 (5925) used greatest stack depth: 24176 bytes left
[  455.525998] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  455.532688] batman_adv: batadv0: Removing interface: batadv_slave_0
[  455.540656] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  455.547674] batman_adv: batadv0: Removing interface: batadv_slave_1
[  455.556809] device bridge_slave_1 left promiscuous mode
[  455.562546] bridge0: port 2(bridge_slave_1) entered disabled state
[  455.570969] device bridge_slave_0 left promiscuous mode
[  455.576495] bridge0: port 1(bridge_slave_0) entered disabled state
[  455.587713] device veth1_macvtap left promiscuous mode
[  455.593144] device veth0_macvtap left promiscuous mode
[  455.598907] device veth1_vlan left promiscuous mode
[  455.604158] device veth0_vlan left promiscuous mode
[  455.677514] team0 (unregistering): Port device team_slave_1 removed
[  455.688366] team0 (unregistering): Port device team_slave_0 removed
[  455.698646] bond0 (unregistering): Releasing backup interface bond_slave_1
[  455.709121] bond0 (unregistering): Releasing backup interface bond_slave_0
[  455.746334] bond0 (unregistering): Released all slaves
[  455.929285] ------------[ cut here ]------------
[  455.934209] WARNING: CPU: 0 PID: 2489 at net/netfilter/core.c:151 nf_unregister_net_hook+0x28a/0x3c0
[  455.943959] nf_unregister_net_hook: hook not found!
[  455.949230] Kernel panic - not syncing: panic_on_warn set ...
[  455.949230] 
[  455.956713] CPU: 0 PID: 2489 Comm: kworker/u4:4 Not tainted 4.8.0-syzkaller #0
[  455.964041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  455.973486] Workqueue: netns cleanup_net
[  455.977705]  ffff88012313f890 ffffffff82d1fa52 ffffffff86085f80 ffff88012313f968
[  455.985810]  ffffffff868ad800 ffffffff84d1ac4a 0000000000000009 ffff88012313f958
[  455.993846]  ffffffff8163df42 0000000041b58ab3 ffffffff86d5f67f ffffffff8163dd8c
[  456.001878] Call Trace:
[  456.004586]  [<ffffffff82d1fa52>] dump_stack+0x136/0x1d4
[  456.010019]  [<ffffffff84d1ac4a>] ? nf_unregister_net_hook+0x28a/0x3c0
[  456.016697]  [<ffffffff8163df42>] panic+0x1b6/0x358
[  456.021682]  [<ffffffff8163dd8c>] ? devm_memremap+0xec/0xec
[  456.027389]  [<ffffffff81480b30>] ? vprintk_emit+0x3d0/0x7f0
[  456.033157]  [<ffffffff84d1ac4a>] ? nf_unregister_net_hook+0x28a/0x3c0
[  456.039801]  [<ffffffff81349a1d>] __warn+0x18d/0x1b0
[  456.044909]  [<ffffffff81453e3e>] ? trace_hardirqs_on_caller+0x49e/0x5c0
[  456.051723]  [<ffffffff81349ad2>] warn_slowpath_fmt+0x92/0xb0
[  456.057584]  [<ffffffff81349a40>] ? __warn+0x1b0/0x1b0
[  456.063271]  [<ffffffff81453e3e>] ? trace_hardirqs_on_caller+0x49e/0x5c0
[  456.070080]  [<ffffffff84d1ac4a>] nf_unregister_net_hook+0x28a/0x3c0
[  456.077495]  [<ffffffff84d1b046>] netfilter_net_exit+0x36/0xa0
[  456.083478]  [<ffffffff84b11f8e>] ops_exit_list.isra.0+0x8e/0x120
[  456.089682]  [<ffffffff84b14290>] cleanup_net+0x2d0/0x570
[  456.095190]  [<ffffffff84b13fc0>] ? net_drop_ns+0x60/0x60
[  456.100757]  [<ffffffff8149d1f7>] ? debug_lockdep_rcu_enabled+0x77/0x90
[  456.107529]  [<ffffffff8139b10d>] process_one_work+0x67d/0x14d0
[  456.113556]  [<ffffffff8139b062>] ? process_one_work+0x5d2/0x14d0
[  456.119788]  [<ffffffff813c8f41>] ? finish_task_switch+0x151/0x630
[  456.126081]  [<ffffffff8139aa90>] ? cancel_delayed_work_sync+0x10/0x10
[  456.132721]  [<ffffffff8139c041>] worker_thread+0xe1/0x1050
[  456.138402]  [<ffffffff8139bf60>] ? process_one_work+0x14d0/0x14d0
[  456.144821]  [<ffffffff813acc4e>] kthread+0x20e/0x2d0
[  456.149987]  [<ffffffff81453f6d>] ? trace_hardirqs_on+0xd/0x10
[  456.155926]  [<ffffffff813aca40>] ? kthread_park+0x80/0x80
[  456.161517]  [<ffffffff813aca40>] ? kthread_park+0x80/0x80
[  456.167113]  [<ffffffff813aca40>] ? kthread_park+0x80/0x80
[  456.172789]  [<ffffffff85e5bd5a>] ret_from_fork+0x2a/0x40
[  456.179735] Kernel Offset: disabled