[ 2.139166] ip (254) used greatest stack depth: 12392 bytes left [ 2.426938] lag1: Mode changed to "loadbalance" [ 2.479065] lag1: Port device veth0 added [ 2.490459] lag1: Port device veth6 added [ 2.652335] lag4: Mode changed to "loadbalance" [ 2.709413] lag4: Port device veth3 added [ 2.722970] lag4: Port device veth5 added [ 2.886247] lag2: Mode changed to "loadbalance" [ 2.937929] lag2: Port device veth1 added [ 2.950302] lag2: Port device veth7 added [ 3.031008] br1: port 1(lag2) entered blocking state [ 3.031092] br1: port 1(lag2) entered disabled state [ 3.031167] lag2: entered allmulticast mode [ 3.031231] veth1: entered allmulticast mode [ 3.031277] veth7: entered allmulticast mode [ 3.031400] veth1: entered promiscuous mode [ 3.031464] veth7: entered promiscuous mode [ 3.065186] br1: port 1(lag2) entered blocking state [ 3.065272] br1: port 1(lag2) entered forwarding state [ 3.105538] lag3: Mode changed to "loadbalance" [ 3.157324] lag3: Port device veth2 added [ 3.170977] lag3: Port device veth4 added [ 10.426570] veth7: left allmulticast mode [ 10.426874] lag2: Port device veth7 removed [ 10.441161] veth7: left promiscuous mode [ 22.499829] veth7: entered allmulticast mode [ 22.499948] veth7: entered promiscuous mode [ 22.500067] lag2: Port device veth7 added [ 22.546309] veth1: left allmulticast mode [ 22.546593] lag2: Port device veth1 removed [ 22.558704] veth1: left promiscuous mode [ 34.609109] br1: port 1(lag2) entered disabled state [ 34.621114] veth7: left allmulticast mode [ 34.621491] lag2: Port device veth7 removed [ 34.633383] veth7: left promiscuous mode [ 34.668027] veth1: entered allmulticast mode [ 34.668137] veth1: entered promiscuous mode [ 34.668320] lag2: Port device veth1 added [ 34.670161] br1: port 1(lag2) entered blocking state [ 34.670247] br1: port 1(lag2) entered forwarding state [ 34.710065] veth7: entered allmulticast mode [ 34.710177] veth7: entered promiscuous mode [ 34.710345] lag2: Port device veth7 added [ 46.774322] lag2: left allmulticast mode [ 46.774423] veth1: left allmulticast mode [ 46.774494] veth7: left allmulticast mode [ 46.774570] veth1: left promiscuous mode [ 46.774637] veth7: left promiscuous mode [ 46.774704] br1: port 1(lag2) entered disabled state [ 48.798341] br1: port 1(lag2) entered blocking state [ 48.798412] br1: port 1(lag2) entered disabled state [ 48.798472] lag2: entered allmulticast mode [ 48.798549] veth1: entered allmulticast mode [ 48.798605] veth7: entered allmulticast mode [ 48.798739] veth1: entered promiscuous mode [ 48.798786] veth7: entered promiscuous mode [ 48.798841] br1: port 1(lag2) entered blocking state [ 48.798900] br1: port 1(lag2) entered forwarding state [ 60.857309] lag3: Port device veth2 removed [ 72.948115] lag3: Port device veth2 added [ 72.992904] lag3: Port device veth4 removed [ 85.071801] lag3: Port device veth2 removed [ 85.120018] lag3: Port device veth4 added [ 85.164395] lag3: Port device veth2 added [ 97.230484] br1: port 2(lag3) entered blocking state [ 97.230558] br1: port 2(lag3) entered disabled state [ 97.230628] lag3: entered allmulticast mode [ 97.230673] veth4: entered allmulticast mode [ 97.230729] veth2: entered allmulticast mode [ 97.230880] lag3: entered promiscuous mode [ 97.230922] veth4: entered promiscuous mode [ 97.230965] veth2: entered promiscuous mode [ 97.231015] lag2: entered promiscuous mode [ 97.231102] br1: port 2(lag3) entered blocking state [ 97.231155] br1: port 2(lag3) entered forwarding state [ 99.254330] lag3: left allmulticast mode [ 99.254398] veth4: left allmulticast mode [ 99.254424] veth2: left allmulticast mode [ 99.254460] lag3: left promiscuous mode [ 99.254497] veth4: left promiscuous mode [ 99.254550] veth2: left promiscuous mode [ 99.254599] br1: port 2(lag3) entered disabled state [ 99.254774] lag2: left promiscuous mode [ 111.391562] lag3: Port device veth4 removed [ 111.404488] lag3: Port device veth2 removed [ 111.428322] ------------[ cut here ]------------ [ 111.428407] refcount_t: underflow; use-after-free. [ 111.428472] WARNING: CPU: 1 PID: 367 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 111.428560] Modules linked in: bridge stp llc vrf veth [ 111.428627] CPU: 1 UID: 0 PID: 367 Comm: teamd Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 111.428712] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 111.428770] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 111.428818] Code: 8c 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 51 8c 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 [ 111.428989] RSP: 0018:ffffacb8802cb730 EFLAGS: 00010282 [ 111.429038] RAX: 0000000000000000 RBX: ffffacb8802cb740 RCX: 00000000ffffdfff [ 111.429108] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 111.429189] RBP: ffffacb8802cb248 R08: ffffffff8c956a28 R09: 00000000ffffdfff [ 111.429263] R10: ffffffff8c876a40 R11: ffffffff8c926a40 R12: dead000000000122 [ 111.429336] R13: 00000000fffd1edd R14: 0000000000000001 R15: ffff9a1245ceb000 [ 111.429406] FS: 00007f8c2627ab80(0000) GS:ffff9a12f1c59000(0000) knlGS:0000000000000000 [ 111.429484] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 111.429547] CR2: 00007f8c2650355a CR3: 000000000830a002 CR4: 0000000000772ef0 [ 111.429620] PKRU: 55555554 [ 111.429649] Call Trace: [ 111.429679] [ 111.429706] netdev_run_todo+0x21a/0x550 [ 111.429762] rtnl_dellink+0x15b/0x350 [ 111.429814] ? kmem_cache_alloc_node_noprof+0x362/0x4f0 [ 111.429872] ? finish_task_switch.isra.0+0x8d/0x270 [ 111.429926] ? kmalloc_reserve+0x8a/0xf0 [ 111.429968] ? kmalloc_reserve+0x8a/0xf0 [ 111.430011] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 111.430065] rtnetlink_rcv_msg+0x358/0x400 [ 111.430109] ? netlink_unicast+0x32d/0x380 [ 111.430155] ? rtnl_calcit.isra.0+0x110/0x110 [ 111.430208] netlink_rcv_skb+0x57/0x100 [ 111.430251] netlink_unicast+0x252/0x380 [ 111.430294] ? __alloc_skb+0xdb/0x190 [ 111.430336] netlink_sendmsg+0x1be/0x3e0 [ 111.430377] ____sys_sendmsg+0x132/0x260 [ 111.430424] ? copy_msghdr_from_user+0x6c/0xa0 [ 111.430479] ___sys_sendmsg+0x87/0xd0 [ 111.430521] ? __handle_mm_fault+0xa3e/0xe50 [ 111.430577] ? anon_pipe_write+0x314/0x650 [ 111.430619] __sys_sendmsg+0x71/0xd0 [ 111.430661] do_syscall_64+0xa4/0xfd0 [ 111.430707] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 111.430764] RIP: 0033:0x7f8c263bb1d7 [ 111.430804] 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 [ 111.430974] RSP: 002b:00007ffc347909c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 111.431047] RAX: ffffffffffffffda RBX: 000000002980a320 RCX: 00007f8c263bb1d7 [ 111.431120] RDX: 0000000000000000 RSI: 00007ffc34790a00 RDI: 0000000000000005 [ 111.431188] RBP: 000000002980a230 R08: 0000000000000003 R09: 0000000000000000 [ 111.431267] R10: 0000000000000020 R11: 0000000000000246 R12: 000000002982d9a0 [ 111.431342] R13: 00007ffc34790a00 R14: 0000000000000000 R15: 00007ffc34790b60 [ 111.431418] [ 111.431442] ---[ end trace 0000000000000000 ]--- [ 111.432290] teamd (367) used greatest stack depth: 11744 bytes left [ 111.578318] br1: port 1(lag2) entered disabled state [ 111.602885] lag2: left allmulticast mode [ 111.602961] veth1: left allmulticast mode [ 111.603008] veth7: left allmulticast mode [ 111.603055] br1: port 1(lag2) entered disabled state [ 111.649897] lag2: Port device veth7 removed [ 111.662979] lag2: Port device veth1 removed [ 111.962522] lag4: Port device veth5 removed [ 111.975967] lag4: Port device veth3 removed [ 112.254859] lag1: Port device veth6 removed [ 112.266867] lag1: Port device veth0 removed