[ 2.464319] 8021q: 802.1Q VLAN Support v1.8 [ 2.696182] lag2: Mode changed to "loadbalance" [ 2.724769] lag2: Port device veth3 added [ 2.766073] lag2: Port device veth5 added [ 2.791017] 8021q: adding VLAN 0 to HW filter on device lag2 [ 2.804039] 8021q: adding VLAN 0 to HW filter on device lag2 [ 2.870842] gre: GRE over IPv4 demultiplexer driver [ 2.873296] ip_gre: GRE over IPv4 tunneling driver [ 3.119656] lag1: Mode changed to "loadbalance" [ 3.145075] lag1: Port device veth2 added [ 3.183015] lag1: Port device veth4 added [ 3.206793] 8021q: adding VLAN 0 to HW filter on device lag1 [ 8.400390] Mirror/redirect action on [ 8.401888] tc (382) used greatest stack depth: 11840 bytes left [ 8.431163] GACT probability NOT on [ 8.444548] lag2: Port device veth5 removed [ 12.044058] lag2: Port device veth3 removed [ 15.747688] ------------[ cut here ]------------ [ 15.747857] refcount_t: underflow; use-after-free. [ 15.747955] WARNING: CPU: 2 PID: 308 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 15.748047] Modules linked in: act_gact act_mirred cls_flower sch_ingress ip_gre gre 8021q vrf veth [ 15.748142] CPU: 2 UID: 0 PID: 308 Comm: teamd Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 15.748228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.748299] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 15.748361] 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 d1 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 [ 15.748549] RSP: 0018:ffffb26d405c7730 EFLAGS: 00010282 [ 15.748632] RAX: 0000000000000000 RBX: ffffb26d405c7740 RCX: 00000000ffffdfff [ 15.748716] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 15.748810] RBP: ffffb26d405c7248 R08: ffffffffb9156a28 R09: 00000000ffffdfff [ 15.748903] R10: ffffffffb9076a40 R11: ffffffffb9126a40 R12: dead000000000122 [ 15.748990] R13: 00000000fffba91e R14: 0000000000000001 R15: ffff9035c33ab000 [ 15.749074] FS: 00007f502e830b80(0000) GS:ffff9036454d9000(0000) knlGS:0000000000000000 [ 15.749152] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 15.749224] CR2: 0000559124767190 CR3: 000000000614f004 CR4: 0000000000772ef0 [ 15.749332] PKRU: 55555554 [ 15.749379] Call Trace: [ 15.749425] [ 15.749469] netdev_run_todo+0x21a/0x550 [ 15.749538] rtnl_dellink+0x15b/0x350 [ 15.749612] ? kmem_cache_alloc_node_noprof+0x362/0x4f0 [ 15.749688] ? finish_task_switch.isra.0+0x8d/0x270 [ 15.749758] ? kmalloc_reserve+0x8a/0xf0 [ 15.749817] ? kmalloc_reserve+0x8a/0xf0 [ 15.749872] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 15.749947] rtnetlink_rcv_msg+0x358/0x400 [ 15.750013] ? netlink_unicast+0x32d/0x380 [ 15.750071] ? rtnl_calcit.isra.0+0x110/0x110 [ 15.750134] netlink_rcv_skb+0x57/0x100 [ 15.750190] netlink_unicast+0x252/0x380 [ 15.750257] ? __alloc_skb+0xdb/0x190 [ 15.750325] netlink_sendmsg+0x1be/0x3e0 [ 15.750381] ____sys_sendmsg+0x132/0x260 [ 15.750438] ? copy_msghdr_from_user+0x6c/0xa0 [ 15.750503] ___sys_sendmsg+0x87/0xd0 [ 15.750560] ? __handle_mm_fault+0xa3e/0xe50 [ 15.750633] ? anon_pipe_write+0x314/0x650 [ 15.750690] __sys_sendmsg+0x71/0xd0 [ 15.750751] do_syscall_64+0xa4/0xfd0 [ 15.750819] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.750899] RIP: 0033:0x7f502e9711d7 [ 15.750965] 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 [ 15.751103] RSP: 002b:00007fff0c3d9af8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.751180] RAX: ffffffffffffffda RBX: 0000000040334320 RCX: 00007f502e9711d7 [ 15.751255] RDX: 0000000000000000 RSI: 00007fff0c3d9b30 RDI: 0000000000000005 [ 15.751330] RBP: 0000000040334230 R08: 0000000000000003 R09: 0000000000000000 [ 15.751406] R10: 0000000000000200 R11: 0000000000000246 R12: 0000000040344950 [ 15.751482] R13: 00007fff0c3d9b30 R14: 0000000000000000 R15: 00007fff0c3d9c90 [ 15.751560] [ 15.751614] ---[ end trace 0000000000000000 ]--- [ 15.752501] teamd (308) used greatest stack depth: 11744 bytes left [ 15.879832] lag2: Mode changed to "loadbalance" [ 15.905044] lag2: Port device veth3 added [ 15.942632] lag2: Port device veth5 added [ 15.966579] 8021q: adding VLAN 0 to HW filter on device lag2 [ 15.979063] 8021q: adding VLAN 0 to HW filter on device lag2 [ 21.201756] lag2: Port device veth3 removed [ 24.794839] lag2: Port device veth5 removed [ 28.626624] lag2: Mode changed to "loadbalance" [ 28.652202] lag2: Port device veth3 added [ 28.690542] lag2: Port device veth5 added [ 28.717405] 8021q: adding VLAN 0 to HW filter on device lag2 [ 28.731403] 8021q: adding VLAN 0 to HW filter on device lag2 [ 33.958505] lag1: Port device veth4 removed [ 33.958915] lag1: Port device veth2 removed [ 34.280208] lag2: Port device veth5 removed [ 34.280439] lag2: Port device veth3 removed