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 list_del corruption. prev->next should be ffff8881ba894730, but was ffff8881c69d3030 ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:53! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 4.20.0-rc6-next-20181210+ #164 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:__list_del_entry_valid.cold.1+0x48/0x4a lib/list_debug.c:51 Code: e4 80 88 e8 22 1f d2 fd 0f 0b 48 89 de 48 c7 c7 c0 e5 80 88 e8 11 1f d2 fd 0f 0b 48 89 de 48 c7 c7 60 e5 80 88 e8 00 1f d2 fd <0f> 0b 48 89 d9 48 c7 c7 20 e6 80 88 e8 ef 1e d2 fd 0f 0b 48 89 f1 RSP: 0018:ffff8881d9ae63e0 EFLAGS: 00010286 RAX: 0000000000000054 RBX: ffff8881ba894730 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816621c5 RDI: 0000000000000005 RBP: ffff8881d9ae63f8 R08: ffff8881d9ada1c0 R09: ffffed103b5a5020 R10: ffffed103b5a5020 R11: ffff8881dad28107 R12: ffff8881cbd594b0 R13: ffff8881b606c730 R14: ffff8881d9ae6500 R15: 1ffff1103b35cc88 FS: 0000000000000000(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc371b06bc CR3: 00000001ce459000 CR4: 00000000001426e0 DR0: 000000000000b8c4 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:117 [inline] list_del_init include/linux/list.h:159 [inline] neigh_mark_dead+0x13b/0x410 net/core/neighbour.c:125 neigh_flush_dev+0x3a1/0x960 net/core/neighbour.c:290 __neigh_ifdown+0x44/0x2c0 net/core/neighbour.c:328 neigh_ifdown+0x1f/0x30 net/core/neighbour.c:345 rt6_disable_ip+0x5b8/0x720 net/ipv6/route.c:4046 addrconf_ifdown+0x168/0x1650 net/ipv6/addrconf.c:3669 addrconf_notify+0x6de/0x2770 net/ipv6/addrconf.c:3594 notifier_call_chain+0x17e/0x380 kernel/notifier.c:93 __raw_notifier_call_chain kernel/notifier.c:394 [inline] raw_notifier_call_chain+0x2d/0x40 kernel/notifier.c:401 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1737 call_netdevice_notifiers_extack net/core/dev.c:1749 [inline] call_netdevice_notifiers net/core/dev.c:1763 [inline] dev_close_many+0x443/0x8b0 net/core/dev.c:1507 rollback_registered_many+0x543/0x1260 net/core/dev.c:8041 unregister_netdevice_many+0xfa/0x4c0 net/core/dev.c:9169 ip6gre_exit_batch_net+0x5cd/0x7f0 net/ipv6/ip6_gre.c:1596 ops_exit_list.isra.5+0x105/0x160 net/core/net_namespace.c:156 cleanup_net+0x555/0xb10 net/core/net_namespace.c:551 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 1d13345e42f951fc ]--- RIP: 0010:__list_del_entry_valid.cold.1+0x48/0x4a lib/list_debug.c:51 Code: e4 80 88 e8 22 1f d2 fd 0f 0b 48 89 de 48 c7 c7 c0 e5 80 88 e8 11 1f d2 fd 0f 0b 48 89 de 48 c7 c7 60 e5 80 88 e8 00 1f d2 fd <0f> 0b 48 89 d9 48 c7 c7 20 e6 80 88 e8 ef 1e d2 fd 0f 0b 48 89 f1 RSP: 0018:ffff8881d9ae63e0 EFLAGS: 00010286 RAX: 0000000000000054 RBX: ffff8881ba894730 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816621c5 RDI: 0000000000000005 RBP: ffff8881d9ae63f8 R08: ffff8881d9ada1c0 R09: ffffed103b5a5020 R10: ffffed103b5a5020 R11: ffff8881dad28107 R12: ffff8881cbd594b0 R13: ffff8881b606c730 R14: ffff8881d9ae6500 R15: 1ffff1103b35cc88 FS: 0000000000000000(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc371b06bc CR3: 00000001ce459000 CR4: 00000000001426e0 DR0: 000000000000b8c4 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400