IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
------------[ cut here ]------------
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 kernel/workqueue.c:4941
IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
WARNING: CPU: 0 PID: 387 at lib/debugobjects.c:325 debug_print_object+0x168/0x250 lib/debugobjects.c:325
bridge0: port 2(bridge_slave_1) entered blocking state
Kernel panic - not syncing: panic_on_warn set ...

bridge0: port 2(bridge_slave_1) entered forwarding state
CPU: 0 PID: 387 Comm: kworker/u4:4 Not tainted 4.19.98-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
8021q: adding VLAN 0 to HW filter on device bond0
Call Trace:
IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
 __warn.cold+0x20/0x53 kernel/panic.c:541
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
 report_bug+0x263/0x2b0 lib/bug.c:186
8021q: adding VLAN 0 to HW filter on device team0
 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
IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready
IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
bridge0: port 1(bridge_slave_0) entered blocking state
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037
RIP: 0010:debug_print_object+0x168/0x250 lib/debugobjects.c:325
bridge0: port 1(bridge_slave_0) entered forwarding state
Code: dd 20 38 eb 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 20 38 eb 87 48 c7 c7 60 2d eb 87 e8 56 81 d4 fd <0f> 0b 83 05 5b 03 64 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3
RSP: 0018:ffff8880a8d27830 EFLAGS: 00010082
IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81558b76 RDI: ffffed10151a4ef8
RBP: ffff8880a8d27870 R08: ffff8880a925c380 R09: ffffed1015d03ee3
R10: ffffed1015d03ee2 R11: ffff8880ae81f717 R12: 0000000000000001
R13: ffffffff88fa2ce0 R14: ffffffff815b0130 R15: ffff8880859e9a20
 __debug_check_no_obj_freed lib/debugobjects.c:785 [inline]
 debug_check_no_obj_freed+0x29f/0x464 lib/debugobjects.c:817
 kfree+0xbd/0x220 mm/slab.c:3821
 kvfree+0x61/0x70 mm/util.c:452
 netdev_freemem+0x4c/0x60 net/core/dev.c:9094
 netdev_release+0x86/0xb0 net/core/net-sysfs.c:1645
 device_release+0x7b/0x210 drivers/base/core.c:892
 kobject_cleanup lib/kobject.c:662 [inline]
 kobject_release lib/kobject.c:691 [inline]
 kref_put include/linux/kref.h:70 [inline]
 kobject_put+0x193/0x290 lib/kobject.c:708
 netdev_run_todo+0x53b/0x7a0 net/core/dev.c:8999
IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready
IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
 rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:117
 default_device_exit_batch+0x358/0x410 net/core/dev.c:9784
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
 ops_exit_list.isra.0+0xfc/0x150 net/core/net_namespace.c:156
IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
 cleanup_net+0x404/0x960 net/core/net_namespace.c:553
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
 process_one_work+0x989/0x1750 kernel/workqueue.c:2153
IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
 worker_thread+0x98/0xe40 kernel/workqueue.c:2296
 kthread+0x354/0x420 kernel/kthread.c:246
bridge0: port 2(bridge_slave_1) entered blocking state
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

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