IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready ------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 kernel/workqueue.c:4954 IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready WARNING: CPU: 1 PID: 264 at lib/debugobjects.c:325 debug_print_object+0x160/0x250 lib/debugobjects.c:325 8021q: adding VLAN 0 to HW filter on device team0 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 264 Comm: kworker/u4:4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Workqueue: netns cleanup_net IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready Call Trace: IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x5a kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:debug_print_object+0x160/0x250 lib/debugobjects.c:325 Code: dd 20 f1 b3 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 20 f1 b3 88 48 c7 c7 40 e5 b3 88 e8 65 92 7b 04 <0f> 0b 83 05 73 e6 af 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 RSP: 0018:ffff8880b4fcf8a8 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10169f9f07 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: ffffffff8c66505b R12: ffffffff89f90a40 R13: ffffffff815313f0 R14: ffff8880a7bcab28 R15: dffffc0000000000 __debug_check_no_obj_freed lib/debugobjects.c:785 [inline] debug_check_no_obj_freed+0x271/0x490 lib/debugobjects.c:817 kfree+0xb9/0x210 mm/slab.c:3821 kvfree+0x59/0x60 mm/util.c:452 device_release+0x76/0x210 drivers/base/core.c:1076 kobject_cleanup lib/kobject.c:662 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put+0x28b/0x5d0 lib/kobject.c:708 netdev_run_todo+0x77f/0xab0 net/core/dev.c:9011 default_device_exit_batch+0x304/0x3c0 net/core/dev.c:9796 ops_exit_list+0xf9/0x150 net/core/net_namespace.c:156 IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:554 bridge0: port 1(bridge_slave_0) entered blocking state process_one_work+0x864/0x1570 kernel/workqueue.c:2153 bridge0: port 1(bridge_slave_0) entered forwarding state worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready ======================================================