device veth0_macvtap left promiscuous mode
device veth1_vlan left promiscuous mode
device veth0_vlan left promiscuous mode
team0 (unregistering): Port device macvlan2 removed
------------[ cut here ]------------
WARNING: CPU: 1 PID: 27 at drivers/net/ipvlan/ipvlan_main.c:63 ipvlan_unregister_nf_hook+0x230/0x260 drivers/net/ipvlan/ipvlan_main.c:63
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 27 Comm: kworker/u4:2 Not tainted 4.14.231-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x44 kernel/panic.c:547
 report_bug+0x208/0x250 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:ipvlan_unregister_nf_hook+0x230/0x260 drivers/net/ipvlan/ipvlan_main.c:63
RSP: 0018:ffff8880b564fa28 EFLAGS: 00010297
RAX: ffff8880b5636000 RBX: 0000000000000000 RCX: 1ffff11016ac6d25
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000286
RBP: ffff888056bdc100 R08: 0000000000000000 R09: 0000000000000004
R10: 0000000000000000 R11: ffff8880b5636000 R12: ffff8880a2026780
R13: ffff8880b564fae0 R14: ffff8880a8d09080 R15: ffffffff83cf2870
 ipvlan_port_destroy+0x2c7/0x3f0 drivers/net/ipvlan/ipvlan_main.c:176
 ipvlan_uninit+0xb6/0xe0 drivers/net/ipvlan/ipvlan_main.c:244
 rollback_registered_many+0x83f/0xba0 net/core/dev.c:7217
 unregister_netdevice_many.part.0+0x18/0x2e0 net/core/dev.c:8285
 unregister_netdevice_many net/core/dev.c:8284 [inline]
 default_device_exit_batch+0x2d8/0x380 net/core/dev.c:8746
 ops_exit_list+0xf9/0x150 net/core/net_namespace.c:145
 cleanup_net+0x3b3/0x840 net/core/net_namespace.c:484
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Kernel Offset: disabled
Rebooting in 86400 seconds..