[ 2.425562] 8021q: 802.1Q VLAN Support v1.8 [ 2.809164] br0: port 1(veth1) entered blocking state [ 2.809254] br0: port 1(veth1) entered disabled state [ 2.809341] veth1: entered allmulticast mode [ 2.809452] veth1: entered promiscuous mode [ 2.823482] br0: port 1(veth1) entered blocking state [ 2.823553] br0: port 1(veth1) entered forwarding state [ 2.847166] br0: port 2(veth2) entered blocking state [ 2.847249] br0: port 2(veth2) entered disabled state [ 2.847318] veth2: entered allmulticast mode [ 2.847401] veth2: entered promiscuous mode [ 2.858865] br0: port 2(veth2) entered blocking state [ 2.858926] br0: port 2(veth2) entered forwarding state [ 35.100385] br0: port 2(veth2) entered disabled state [ 35.112718] veth2: left allmulticast mode [ 35.112794] veth2: left promiscuous mode [ 35.112842] br0: port 2(veth2) entered disabled state [ 35.125791] br0: port 1(veth1) entered disabled state [ 35.138689] veth1: left allmulticast mode [ 35.138755] veth1: left promiscuous mode [ 35.138804] br0: port 1(veth1) entered disabled state [ 35.195357] ------------[ cut here ]------------ [ 35.195482] refcount_t: underflow; use-after-free. [ 35.195608] WARNING: CPU: 0 PID: 2111 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 35.195748] Modules linked in: bridge stp llc 8021q vrf veth [ 35.195872] CPU: 0 UID: 0 PID: 2111 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 35.195958] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 35.196013] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 35.196066] Code: b9 e8 18 df ba ff 90 0f 0b 90 90 c3 80 3d f9 da eb 00 00 75 89 c6 05 f0 da eb 00 01 90 48 c7 c7 28 e0 31 b9 e8 f5 de ba ff 90 <0f> 0b 90 90 c3 80 3d d4 da eb 00 00 0f 85 62 ff ff ff c6 05 c7 da [ 35.196213] RSP: 0018:ffffa4c2c2257730 EFLAGS: 00010282 [ 35.196259] RAX: 0000000000000000 RBX: ffffa4c2c2257740 RCX: 00000000ffffdfff [ 35.196330] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 35.196396] RBP: ffffa4c2c2257248 R08: ffffffffb9756a28 R09: 00000000ffffdfff [ 35.196452] R10: ffffffffb9676a40 R11: ffffffffb9726a40 R12: dead000000000122 [ 35.196510] R13: 00000000fffbf515 R14: 0000000000000001 R15: ffff8a0cc47a8000 [ 35.196578] FS: 00007fa364606800(0000) GS:ffff8a0d44dd9000(0000) knlGS:0000000000000000 [ 35.196670] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.196743] CR2: 00000000004e68c8 CR3: 0000000003330006 CR4: 0000000000772ef0 [ 35.196802] PKRU: 55555554 [ 35.196829] Call Trace: [ 35.196867] [ 35.196917] netdev_run_todo+0x21a/0x550 [ 35.196977] rtnl_dellink+0x15b/0x350 [ 35.197032] ? virtio_fs_enqueue_req+0x352/0x570 [ 35.197088] ? netdev_run_todo+0x63/0x550 [ 35.197126] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 35.197185] rtnetlink_rcv_msg+0x358/0x400 [ 35.197219] ? get_page_from_freelist+0x15b4/0x1770 [ 35.197274] ? rtnl_calcit.isra.0+0x110/0x110 [ 35.197334] netlink_rcv_skb+0x57/0x100 [ 35.197383] netlink_unicast+0x252/0x380 [ 35.197415] ? __alloc_skb+0xdb/0x190 [ 35.197458] netlink_sendmsg+0x1be/0x3e0 [ 35.197490] ____sys_sendmsg+0x132/0x260 [ 35.197530] ? copy_msghdr_from_user+0x6c/0xa0 [ 35.197583] ___sys_sendmsg+0x87/0xd0 [ 35.197623] ? do_wp_page+0x369/0xe90 [ 35.197660] ? ___pte_offset_map+0x1b/0xd0 [ 35.197694] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 35.197756] ? fsnotify_grab_connector+0x48/0x80 [ 35.197806] ? fsnotify_destroy_marks+0x29/0x150 [ 35.197857] __sys_sendmsg+0x71/0xd0 [ 35.197890] do_syscall_64+0xa4/0xfd0 [ 35.197944] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 35.197996] RIP: 0033:0x7fa3647d41d7 [ 35.198044] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 35.198187] RSP: 002b:00007ffc4d920f28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.198254] RAX: ffffffffffffffda RBX: 00007ffc4d921650 RCX: 00007fa3647d41d7 [ 35.198321] RDX: 0000000000000000 RSI: 00007ffc4d920f90 RDI: 0000000000000005 [ 35.198380] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 35.198436] R10: 00007fa3646d0f60 R11: 0000000000000246 R12: 0000000000000002 [ 35.198487] R13: 00000000690deaee R14: 0000000000499600 R15: 0000000000000000 [ 35.198539] [ 35.198556] ---[ end trace 0000000000000000 ]--- [ 35.199222] ip (2111) used greatest stack depth: 11744 bytes left [ 35.267911] br0: port 1(veth1) entered blocking state [ 35.268003] br0: port 1(veth1) entered disabled state [ 35.268075] veth1: entered allmulticast mode [ 35.268187] veth1: entered promiscuous mode [ 35.279276] br0: port 1(veth1) entered blocking state [ 35.279356] br0: port 1(veth1) entered forwarding state [ 35.320367] br0: port 2(veth2) entered blocking state [ 35.320451] br0: port 2(veth2) entered disabled state [ 35.320517] veth2: entered allmulticast mode [ 35.320612] veth2: entered promiscuous mode [ 35.331563] br0: port 2(veth2) entered blocking state [ 35.331640] br0: port 2(veth2) entered forwarding state [ 67.690186] br0: port 2(veth2) entered disabled state [ 67.701012] veth2: left allmulticast mode [ 67.701076] veth2: left promiscuous mode [ 67.701127] br0: port 2(veth2) entered disabled state [ 67.712330] br0: port 1(veth1) entered disabled state [ 67.723217] veth1: left allmulticast mode [ 67.723306] veth1: left promiscuous mode [ 67.723363] br0: port 1(veth1) entered disabled state [ 67.825166] br0: port 1(veth1) entered blocking state [ 67.825266] br0: port 1(veth1) entered disabled state [ 67.825356] veth1: entered allmulticast mode [ 67.825453] veth1: entered promiscuous mode [ 67.837603] br0: port 1(veth1) entered blocking state [ 67.837673] br0: port 1(veth1) entered forwarding state [ 67.881827] br0: port 2(veth2) entered blocking state [ 67.881947] br0: port 2(veth2) entered disabled state [ 67.882043] veth2: entered allmulticast mode [ 67.882173] veth2: entered promiscuous mode [ 67.894069] br0: port 2(veth2) entered blocking state [ 67.894152] br0: port 2(veth2) entered forwarding state [ 131.107257] br0: port 2(veth2) entered disabled state [ 131.118414] veth2: left allmulticast mode [ 131.118485] veth2: left promiscuous mode [ 131.118526] br0: port 2(veth2) entered disabled state [ 131.130511] br0: port 1(veth1) entered disabled state [ 131.141888] veth1: left allmulticast mode [ 131.141951] veth1: left promiscuous mode [ 131.141996] br0: port 1(veth1) entered disabled state