IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
bridge0: port 1(bridge_slave_0) entered blocking state
bridge0: port 1(bridge_slave_0) entered disabled state
device bridge_slave_0 entered promiscuous mode
bridge0: port 2(bridge_slave_1) entered blocking state
WARNING: CPU: 1 PID: 4233 at net/xfrm/xfrm_state.c:2391 xfrm_state_fini+0x218/0x280 net/xfrm/xfrm_state.c:2391
bridge0: port 2(bridge_slave_1) entered disabled state
Kernel panic - not syncing: panic_on_warn set ...

kobject: 'brport' (00000000d6b86c70): kobject_add_internal: parent: 'bridge_slave_1', set: '<NULL>'
CPU: 1 PID: 4233 Comm: kworker/u4:7 Not tainted 4.19.38 #6
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:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x263/0x51d kernel/panic.c:185
device bridge_slave_1 entered promiscuous mode
kobject: 'brport' (00000000d6b86c70): kobject_uevent_env
 __warn.cold+0x20/0x54 kernel/panic.c:540
kobject: 'brport' (00000000d6b86c70): kobject_uevent_env: filter function caused the event to drop!
kobject: 'veth0_to_bond' (000000009c3c5308): kobject_add_internal: parent: 'net', set: 'devices'
 report_bug+0x263/0x2b0 lib/bug.c:186
kobject: 'veth0_to_bond' (000000009c3c5308): kobject_uevent_env
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296
kobject: 'veth0_to_bond' (000000009c3c5308): fill_kobj_path: path = '/devices/virtual/net/veth0_to_bond'
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
kobject: 'queues' (00000000c1d29f44): kobject_add_internal: parent: 'veth0_to_bond', set: '<NULL>'
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:997
RIP: 0010:xfrm_state_fini+0x218/0x280 net/xfrm/xfrm_state.c:2391
Code: 41 5e 5d c3 e8 d9 a5 7a fb 0f 0b e9 09 ff ff ff e8 cd a5 7a fb 0f 0b e9 68 ff ff ff e8 c1 a5 7a fb 0f 0b eb c6 e8 b8 a5 7a fb <0f> 0b e9 52 fe ff ff e8 ac 16 b1 fb e9 75 fe ff ff e8 c2 16 b1 fb
RSP: 0018:ffff88805bd67bd0 EFLAGS: 00010293
RAX: ffff88808b5562c0 RBX: ffff88809c1b0140 RCX: ffffffff85efc359
RDX: 0000000000000000 RSI: ffffffff85f0ca38 RDI: 0000000000000005
RBP: ffff88805bd67bf0 R08: ffff88808b5562c0 R09: ffff88808b556bb0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809c1b1c80
R13: ffff88805bd67cc8 R14: ffffffff891b70b8 R15: dffffc0000000000
 xfrm_net_exit+0x25/0x70 net/xfrm/xfrm_policy.c:2948
 ops_exit_list.isra.0+0xb0/0x160 net/core/net_namespace.c:153
 cleanup_net+0x3fb/0x960 net/core/net_namespace.c:552
kobject: 'queues' (00000000c1d29f44): kobject_uevent_env
 process_one_work+0x98e/0x1760 kernel/workqueue.c:2153
kobject: 'queues' (00000000c1d29f44): kobject_uevent_env: filter function caused the event to drop!
 worker_thread+0x98/0xe40 kernel/workqueue.c:2296
 kthread+0x357/0x430 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
Kernel Offset: disabled
Rebooting in 86400 seconds..