IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready ------------[ cut here ]------------ IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 kernel/workqueue.c:4941 WARNING: CPU: 1 PID: 1007 at lib/debugobjects.c:325 debug_print_object+0x168/0x250 lib/debugobjects.c:325 IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 1007 Comm: kworker/u4:1 Not tainted 4.19.95-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:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready panic+0x26a/0x50e kernel/panic.c:186 8021q: adding VLAN 0 to HW filter on device batadv0 IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1_virt_wifi: link is not ready __warn.cold+0x20/0x53 kernel/panic.c:541 IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready report_bug+0x263/0x2b0 lib/bug.c:186 IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready 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): veth1_to_team: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037 IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready RIP: 0010:debug_print_object+0x168/0x250 lib/debugobjects.c:325 IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready Code: dd e0 37 eb 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd e0 37 eb 87 48 c7 c7 20 2d eb 87 e8 46 81 d4 fd <0f> 0b 83 05 0b 0e 64 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 RSP: 0018:ffff8880289df830 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81558bc6 RDI: ffffed100513bef8 RBP: ffff8880289df870 R08: ffff88805aba01c0 R09: ffffed1015d23ee3 R10: ffffed1015d23ee2 R11: ffff8880ae91f717 R12: 0000000000000001 R13: ffffffff88fa2ce0 R14: ffffffff815b0180 R15: ffff8880876b53a0 IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready 8021q: adding VLAN 0 to HW filter on device batadv0 __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 IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready 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 IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready 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): veth1_vlan: link is not ready device veth0_vlan entered promiscuous mode device veth1_vlan entered promiscuous mode rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:117 default_device_exit_batch+0x358/0x410 net/core/dev.c:9784 IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready ops_exit_list.isra.0+0xfc/0x150 net/core/net_namespace.c:156 cleanup_net+0x404/0x960 net/core/net_namespace.c:553 process_one_work+0x989/0x1750 kernel/workqueue.c:2153 worker_thread+0x98/0xe40 kernel/workqueue.c:2296 kthread+0x354/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 ======================================================