[ 2.516932] lag1: Mode changed to "loadbalance" [ 2.566451] lag1: Port device veth0 added [ 2.577822] lag1: Port device veth6 added [ 2.743239] lag4: Mode changed to "loadbalance" [ 2.791970] lag4: Port device veth3 added [ 2.801916] lag4: Port device veth5 added [ 2.963251] lag2: Mode changed to "loadbalance" [ 3.023068] lag2: Port device veth1 added [ 3.035167] lag2: Port device veth7 added [ 3.115329] br1: port 1(lag2) entered blocking state [ 3.115417] br1: port 1(lag2) entered disabled state [ 3.115491] lag2: entered allmulticast mode [ 3.115537] veth1: entered allmulticast mode [ 3.115597] veth7: entered allmulticast mode [ 3.115835] veth1: entered promiscuous mode [ 3.115879] veth7: entered promiscuous mode [ 3.150549] br1: port 1(lag2) entered blocking state [ 3.150618] br1: port 1(lag2) entered forwarding state [ 3.193355] lag3: Mode changed to "loadbalance" [ 3.248703] lag3: Port device veth2 added [ 3.260640] lag3: Port device veth4 added [ 10.525854] veth7: left allmulticast mode [ 10.526079] lag2: Port device veth7 removed [ 10.538574] veth7: left promiscuous mode [ 22.619360] veth7: entered allmulticast mode [ 22.619456] veth7: entered promiscuous mode [ 22.619565] lag2: Port device veth7 added [ 22.664904] veth1: left allmulticast mode [ 22.665103] lag2: Port device veth1 removed [ 22.676151] veth1: left promiscuous mode [ 34.727545] br1: port 1(lag2) entered disabled state [ 34.739068] veth7: left allmulticast mode [ 34.739274] lag2: Port device veth7 removed [ 34.751258] veth7: left promiscuous mode [ 34.785415] veth1: entered allmulticast mode [ 34.785488] veth1: entered promiscuous mode [ 34.785615] lag2: Port device veth1 added [ 34.786801] br1: port 1(lag2) entered blocking state [ 34.786855] br1: port 1(lag2) entered forwarding state [ 34.829913] veth7: entered allmulticast mode [ 34.830030] veth7: entered promiscuous mode [ 34.830133] lag2: Port device veth7 added [ 46.885684] lag2: left allmulticast mode [ 46.885747] veth1: left allmulticast mode [ 46.885784] veth7: left allmulticast mode [ 46.885826] veth1: left promiscuous mode [ 46.885861] veth7: left promiscuous mode [ 46.885894] br1: port 1(lag2) entered disabled state [ 48.908045] br1: port 1(lag2) entered blocking state [ 48.908116] br1: port 1(lag2) entered disabled state [ 48.908194] lag2: entered allmulticast mode [ 48.908231] veth1: entered allmulticast mode [ 48.908275] veth7: entered allmulticast mode [ 48.908407] veth1: entered promiscuous mode [ 48.908456] veth7: entered promiscuous mode [ 48.908512] br1: port 1(lag2) entered blocking state [ 48.908574] br1: port 1(lag2) entered forwarding state [ 60.969954] lag3: Port device veth2 removed [ 73.057248] lag3: Port device veth2 added [ 73.099475] lag3: Port device veth4 removed [ 85.168271] lag3: Port device veth2 removed [ 85.216591] lag3: Port device veth4 added [ 85.258457] lag3: Port device veth2 added [ 97.333608] br1: port 2(lag3) entered blocking state [ 97.333700] br1: port 2(lag3) entered disabled state [ 97.333806] lag3: entered allmulticast mode [ 97.333847] veth4: entered allmulticast mode [ 97.333908] veth2: entered allmulticast mode [ 97.334032] lag3: entered promiscuous mode [ 97.334103] veth4: entered promiscuous mode [ 97.334146] veth2: entered promiscuous mode [ 97.334222] lag2: entered promiscuous mode [ 97.334424] br1: port 2(lag3) entered blocking state [ 97.334485] br1: port 2(lag3) entered forwarding state [ 99.354833] lag3: left allmulticast mode [ 99.354933] veth4: left allmulticast mode [ 99.354974] veth2: left allmulticast mode [ 99.355013] lag3: left promiscuous mode [ 99.355050] veth4: left promiscuous mode [ 99.355119] veth2: left promiscuous mode [ 99.355172] br1: port 2(lag3) entered disabled state [ 99.355380] lag2: left promiscuous mode [ 111.488711] lag3: Port device veth4 removed [ 111.501640] lag3: Port device veth2 removed [ 111.527534] ------------[ cut here ]------------ [ 111.527691] refcount_t: underflow; use-after-free. [ 111.527758] WARNING: CPU: 3 PID: 367 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 111.527838] Modules linked in: bridge stp llc vrf veth [ 111.527902] CPU: 3 UID: 0 PID: 367 Comm: teamd Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 111.528008] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 111.528056] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 111.528097] Code: a8 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 71 a8 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 [ 111.528235] RSP: 0018:ffffaf16c02a3730 EFLAGS: 00010282 [ 111.528275] RAX: 0000000000000000 RBX: ffffaf16c02a3740 RCX: 00000000ffffdfff [ 111.528354] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 111.528410] RBP: ffffaf16c02a3248 R08: ffffffffa8b56a28 R09: 00000000ffffdfff [ 111.528499] R10: ffffffffa8a76a40 R11: ffffffffa8b26a40 R12: dead000000000122 [ 111.528557] R13: 00000000fffd1f3c R14: 0000000000000001 R15: ffffa0b086460000 [ 111.528646] FS: 00007fdc249fab80(0000) GS:ffffa0b115b59000(0000) knlGS:0000000000000000 [ 111.528710] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 111.528760] CR2: 00007f34f6fe9760 CR3: 0000000003361001 CR4: 0000000000772ef0 [ 111.528812] PKRU: 55555554 [ 111.528836] Call Trace: [ 111.528871] [ 111.528902] netdev_run_todo+0x21a/0x550 [ 111.528954] rtnl_dellink+0x15b/0x350 [ 111.529002] ? kmem_cache_alloc_node_noprof+0x362/0x4f0 [ 111.529050] ? finish_task_switch.isra.0+0x8d/0x270 [ 111.529097] ? kmalloc_reserve+0x8a/0xf0 [ 111.529142] ? kmalloc_reserve+0x8a/0xf0 [ 111.529173] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 111.529217] rtnetlink_rcv_msg+0x358/0x400 [ 111.529248] ? netlink_unicast+0x32d/0x380 [ 111.529284] ? rtnl_calcit.isra.0+0x110/0x110 [ 111.529334] netlink_rcv_skb+0x57/0x100 [ 111.529384] netlink_unicast+0x252/0x380 [ 111.529428] ? __alloc_skb+0xdb/0x190 [ 111.529477] netlink_sendmsg+0x1be/0x3e0 [ 111.529523] ____sys_sendmsg+0x132/0x260 [ 111.529571] ? copy_msghdr_from_user+0x6c/0xa0 [ 111.529634] ___sys_sendmsg+0x87/0xd0 [ 111.529681] ? __handle_mm_fault+0xa3e/0xe50 [ 111.529743] ? anon_pipe_write+0x314/0x650 [ 111.529792] __sys_sendmsg+0x71/0xd0 [ 111.529838] do_syscall_64+0xa4/0xfd0 [ 111.529889] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 111.529952] RIP: 0033:0x7fdc24b3b1d7 [ 111.530002] 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 [ 111.530182] RSP: 002b:00007ffd8496ec08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 111.530265] RAX: ffffffffffffffda RBX: 0000000003d26320 RCX: 00007fdc24b3b1d7 [ 111.530340] RDX: 0000000000000000 RSI: 00007ffd8496ec40 RDI: 0000000000000005 [ 111.530420] RBP: 0000000003d26230 R08: 0000000000000003 R09: 0000000000000000 [ 111.530507] R10: 0000000000000020 R11: 0000000000000246 R12: 0000000003d499a0 [ 111.530585] R13: 00007ffd8496ec40 R14: 0000000000000000 R15: 00007ffd8496eda0 [ 111.530671] [ 111.530706] ---[ end trace 0000000000000000 ]--- [ 111.531622] teamd (367) used greatest stack depth: 11744 bytes left [ 111.666297] br1: port 1(lag2) entered disabled state [ 111.686896] lag2: left allmulticast mode [ 111.686951] veth1: left allmulticast mode [ 111.686989] veth7: left allmulticast mode [ 111.687031] br1: port 1(lag2) entered disabled state [ 111.735749] lag2: Port device veth7 removed [ 111.746251] lag2: Port device veth1 removed [ 112.027079] lag4: Port device veth5 removed [ 112.039156] lag4: Port device veth3 removed [ 112.310680] lag1: Port device veth6 removed [ 112.322496] lag1: Port device veth0 removed