[ 2.175364] ip (252) used greatest stack depth: 12344 bytes left [ 2.479216] lag1: Mode changed to "loadbalance" [ 2.541984] lag1: Port device veth0 added [ 2.553439] lag1: Port device veth6 added [ 2.682205] 8021q: 802.1Q VLAN Support v1.8 [ 2.682346] 8021q: adding VLAN 0 to HW filter on device lag1 [ 2.847114] lag4: Mode changed to "loadbalance" [ 2.861652] 8021q: adding VLAN 0 to HW filter on device lag4 [ 2.909767] lag4: Port device veth3 added [ 2.920865] lag4: Port device veth5 added [ 2.979316] 8021q: adding VLAN 0 to HW filter on device lag4 [ 3.182002] lag2: Mode changed to "loadbalance" [ 3.196195] 8021q: adding VLAN 0 to HW filter on device lag2 [ 3.246889] lag2: Port device veth1 added [ 3.258611] lag2: Port device veth7 added [ 3.388636] br1: port 1(lag2.100) entered blocking state [ 3.388723] br1: port 1(lag2.100) entered disabled state [ 3.388805] lag2.100: entered allmulticast mode [ 3.388865] lag2: entered allmulticast mode [ 3.388917] veth1: entered allmulticast mode [ 3.388975] veth7: entered allmulticast mode [ 3.389093] lag2.100: entered promiscuous mode [ 3.389152] lag2: entered promiscuous mode [ 3.389190] veth1: entered promiscuous mode [ 3.389239] veth7: entered promiscuous mode [ 3.437883] br2: port 1(lag2.200) entered blocking state [ 3.437945] br2: port 1(lag2.200) entered disabled state [ 3.437998] lag2.200: entered allmulticast mode [ 3.438212] lag2.200: entered promiscuous mode [ 3.472921] br1: port 1(lag2.100) entered blocking state [ 3.472996] br1: port 1(lag2.100) entered forwarding state [ 3.484407] br2: port 1(lag2.200) entered blocking state [ 3.484502] br2: port 1(lag2.200) entered forwarding state [ 3.550916] lag3: Mode changed to "loadbalance" [ 3.567796] 8021q: adding VLAN 0 to HW filter on device lag3 [ 3.623736] lag3: Port device veth2 added [ 3.637640] lag3: Port device veth4 added [ 12.928150] veth7: left promiscuous mode [ 12.928239] veth7: left allmulticast mode [ 12.928526] lag2: Port device veth7 removed [ 26.977790] veth7: entered promiscuous mode [ 26.977873] veth7: entered allmulticast mode [ 26.978003] lag2: Port device veth7 added [ 27.023609] veth1: left promiscuous mode [ 27.023744] veth1: left allmulticast mode [ 27.024165] lag2: Port device veth1 removed [ 41.056700] br1: port 1(lag2.100) entered disabled state [ 41.056892] br2: port 1(lag2.200) entered disabled state [ 41.070904] veth7: left promiscuous mode [ 41.070997] veth7: left allmulticast mode [ 41.071152] lag2: Port device veth7 removed [ 41.119580] veth1: entered promiscuous mode [ 41.119686] veth1: entered allmulticast mode [ 41.119897] lag2: Port device veth1 added [ 41.123156] br1: port 1(lag2.100) entered blocking state [ 41.123247] br1: port 1(lag2.100) entered forwarding state [ 41.123348] br2: port 1(lag2.200) entered blocking state [ 41.123400] br2: port 1(lag2.200) entered forwarding state [ 41.164283] veth7: entered promiscuous mode [ 41.164362] veth7: entered allmulticast mode [ 41.164494] lag2: Port device veth7 added [ 55.204056] lag2.200: left allmulticast mode [ 55.204123] lag2.200: left promiscuous mode [ 55.204190] br2: port 1(lag2.200) entered disabled state [ 55.216707] lag2.100: left allmulticast mode [ 55.216769] lag2: left allmulticast mode [ 55.216798] veth1: left allmulticast mode [ 55.216844] veth7: left allmulticast mode [ 55.216879] lag2.100: left promiscuous mode [ 55.216911] lag2: left promiscuous mode [ 55.216937] veth1: left promiscuous mode [ 55.216993] veth7: left promiscuous mode [ 55.217053] br1: port 1(lag2.100) entered disabled state [ 57.239169] br1: port 1(lag2.100) entered blocking state [ 57.239249] br1: port 1(lag2.100) entered disabled state [ 57.239323] lag2.100: entered allmulticast mode [ 57.239376] lag2: entered allmulticast mode [ 57.239411] veth1: entered allmulticast mode [ 57.239472] veth7: entered allmulticast mode [ 57.239623] lag2.100: entered promiscuous mode [ 57.239672] lag2: entered promiscuous mode [ 57.239706] veth1: entered promiscuous mode [ 57.239758] veth7: entered promiscuous mode [ 57.239842] br1: port 1(lag2.100) entered blocking state [ 57.239906] br1: port 1(lag2.100) entered forwarding state [ 57.250847] br2: port 1(lag2.200) entered blocking state [ 57.250945] br2: port 1(lag2.200) entered disabled state [ 57.251019] lag2.200: entered allmulticast mode [ 57.251143] lag2.200: entered promiscuous mode [ 57.251220] br2: port 1(lag2.200) entered blocking state [ 57.251275] br2: port 1(lag2.200) entered forwarding state [ 71.291288] lag3: Port device veth2 removed [ 85.339744] lag3: Port device veth2 added [ 85.378912] lag3: Port device veth4 removed [ 99.443963] lag3: Port device veth2 removed [ 99.492425] lag3: Port device veth4 added [ 99.541049] lag3: Port device veth2 added [ 113.648479] ------------[ cut here ]------------ [ 113.648605] refcount_t: underflow; use-after-free. [ 113.648664] WARNING: CPU: 0 PID: 1002 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 113.648749] Modules linked in: bridge stp llc 8021q vrf veth [ 113.648815] CPU: 0 UID: 0 PID: 1002 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 113.648882] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 113.648928] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 113.648967] Code: b8 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 91 b8 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 [ 113.649096] RSP: 0018:ffffb14b411bf730 EFLAGS: 00010282 [ 113.649135] RAX: 0000000000000000 RBX: ffffb14b411bf740 RCX: 00000000ffffdfff [ 113.649186] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 113.649241] RBP: ffffb14b411bf248 R08: ffffffffb8d56a28 R09: 00000000ffffdfff [ 113.649297] R10: ffffffffb8c76a40 R11: ffffffffb8d26a40 R12: dead000000000122 [ 113.649354] R13: 00000000fffd278e R14: 0000000000000001 R15: ffff90778743c000 [ 113.649423] FS: 00007f7feb3b7800(0000) GS:ffff9078057d9000(0000) knlGS:0000000000000000 [ 113.649488] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 113.649545] CR2: 00007fb1bd936aa0 CR3: 0000000003077005 CR4: 0000000000772ef0 [ 113.649614] PKRU: 55555554 [ 113.649636] Call Trace: [ 113.649666] [ 113.649689] netdev_run_todo+0x21a/0x550 [ 113.649736] rtnl_dellink+0x15b/0x350 [ 113.649779] ? virtio_fs_enqueue_req+0x352/0x570 [ 113.649829] ? netdev_run_todo+0x63/0x550 [ 113.649859] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 113.649898] rtnetlink_rcv_msg+0x358/0x400 [ 113.649931] ? get_page_from_freelist+0x15b4/0x1770 [ 113.649979] ? rtnl_calcit.isra.0+0x110/0x110 [ 113.650019] netlink_rcv_skb+0x57/0x100 [ 113.650060] netlink_unicast+0x252/0x380 [ 113.650092] ? __alloc_skb+0xdb/0x190 [ 113.650125] netlink_sendmsg+0x1be/0x3e0 [ 113.650157] ____sys_sendmsg+0x132/0x260 [ 113.650195] ? copy_msghdr_from_user+0x6c/0xa0 [ 113.650237] ___sys_sendmsg+0x87/0xd0 [ 113.650268] ? do_wp_page+0x369/0xe90 [ 113.650303] ? ___pte_offset_map+0x1b/0xd0 [ 113.650335] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 113.650379] ? fsnotify_grab_connector+0x48/0x80 [ 113.650432] ? fsnotify_destroy_marks+0x29/0x150 [ 113.650474] __sys_sendmsg+0x71/0xd0 [ 113.650508] do_syscall_64+0xa4/0xfd0 [ 113.650555] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 113.650601] RIP: 0033:0x7f7feb5851d7 [ 113.650632] 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 [ 113.650754] RSP: 002b:00007ffdb5028848 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 113.650811] RAX: ffffffffffffffda RBX: 00007ffdb5028f70 RCX: 00007f7feb5851d7 [ 113.650865] RDX: 0000000000000000 RSI: 00007ffdb50288b0 RDI: 0000000000000005 [ 113.650920] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 113.650977] R10: 00007f7feb481f60 R11: 0000000000000246 R12: 0000000000000002 [ 113.651034] R13: 00000000690deb92 R14: 0000000000499600 R15: 0000000000000000 [ 113.651097] [ 113.651117] ---[ end trace 0000000000000000 ]--- [ 113.651717] ip (1002) used greatest stack depth: 11744 bytes left [ 113.710967] lag3: Port device veth4 removed [ 113.723713] lag3: Port device veth2 removed [ 113.903072] br2: port 1(lag2.200) entered disabled state [ 113.914685] br1: port 1(lag2.100) entered disabled state [ 113.950561] lag2.200: left allmulticast mode [ 113.950631] lag2.200: left promiscuous mode [ 113.950697] br2: port 1(lag2.200) entered disabled state [ 113.999619] lag2.100: left allmulticast mode [ 113.999698] lag2: left allmulticast mode [ 113.999733] veth1: left allmulticast mode [ 113.999774] veth7: left allmulticast mode [ 113.999821] lag2.100: left promiscuous mode [ 113.999857] lag2: left promiscuous mode [ 113.999891] veth1: left promiscuous mode [ 113.999960] veth7: left promiscuous mode [ 114.000027] br1: port 1(lag2.100) entered disabled state [ 114.105660] lag2: Port device veth7 removed [ 114.117105] lag2: Port device veth1 removed [ 114.443004] lag4: Port device veth5 removed [ 114.455040] lag4: Port device veth3 removed [ 114.776699] lag1: Port device veth6 removed [ 114.788554] lag1: Port device veth0 removed