[ 2.047499] ip (250) used greatest stack depth: 12408 bytes left [ 2.089185] ip (257) used greatest stack depth: 12344 bytes left [ 2.131102] ip (263) used greatest stack depth: 12312 bytes left [ 2.341512] 8021q: 802.1Q VLAN Support v1.8 [ 2.781782] gre: GRE over IPv4 demultiplexer driver [ 2.783413] ip_gre: GRE over IPv4 tunneling driver [ 2.796114] ip (339) used greatest stack depth: 12296 bytes left [ 2.892099] lag: Mode changed to "loadbalance" [ 2.917352] lag: Port device veth2 added [ 2.947967] lag: Port device veth4 added [ 2.967175] 8021q: adding VLAN 0 to HW filter on device lag [ 2.977335] br1: port 1(lag) entered blocking state [ 2.977449] br1: port 1(lag) entered disabled state [ 2.977529] lag: entered allmulticast mode [ 2.977583] veth2: entered allmulticast mode [ 2.977649] veth4: entered allmulticast mode [ 2.977790] veth2: entered promiscuous mode [ 2.977845] veth4: entered promiscuous mode [ 2.988233] br1: port 1(lag) entered blocking state [ 2.988319] br1: port 1(lag) entered forwarding state [ 3.072791] GACT probability NOT on [ 3.073888] tc (368) used greatest stack depth: 11840 bytes left [ 8.276103] Mirror/redirect action on [ 21.960260] br1: port 1(lag) entered disabled state [ 27.140426] br1: port 1(lag) entered blocking state [ 27.140566] br1: port 1(lag) entered forwarding state [ 40.924393] br1: port 1(lag) entered disabled state [ 46.099351] br1: port 1(lag) entered blocking state [ 46.099438] br1: port 1(lag) entered forwarding state [ 46.207600] lag: left allmulticast mode [ 46.207656] veth2: left allmulticast mode [ 46.207694] veth4: left allmulticast mode [ 46.207736] veth2: left promiscuous mode [ 46.207763] veth4: left promiscuous mode [ 46.207799] br1: port 1(lag) entered disabled state [ 46.222656] lag: Port device veth4 removed [ 46.222959] lag: Port device veth2 removed [ 46.230399] ------------[ cut here ]------------ [ 46.230492] refcount_t: underflow; use-after-free. [ 46.230568] WARNING: CPU: 1 PID: 351 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 46.230663] Modules linked in: act_mirred act_gact cls_flower bridge stp llc ip_gre gre sch_ingress 8021q vrf veth [ 46.230789] CPU: 1 UID: 0 PID: 351 Comm: teamd Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 46.230889] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 46.230957] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 46.231018] Code: 87 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 87 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 [ 46.231211] RSP: 0018:ffffa8ed00313730 EFLAGS: 00010282 [ 46.231262] RAX: 0000000000000000 RBX: ffffa8ed00313740 RCX: 00000000ffffdfff [ 46.231346] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 46.231430] RBP: ffffa8ed00313248 R08: ffffffff87d56a28 R09: 00000000ffffdfff [ 46.231511] R10: ffffffff87c76a40 R11: ffffffff87d26a40 R12: dead000000000122 [ 46.231591] R13: 00000000fffc2039 R14: 0000000000000001 R15: ffff9181c1c34000 [ 46.231687] FS: 00007fdecb922b80(0000) GS:ffff918276859000(0000) knlGS:0000000000000000 [ 46.231772] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.231846] CR2: 00007fc825f5c020 CR3: 0000000002f67001 CR4: 0000000000772ef0 [ 46.231929] PKRU: 55555554 [ 46.231954] Call Trace: [ 46.231985] [ 46.232018] netdev_run_todo+0x21a/0x550 [ 46.232071] rtnl_dellink+0x15b/0x350 [ 46.232121] ? finish_task_switch.isra.0+0x8d/0x270 [ 46.232188] ? __schedule+0x504/0xb40 [ 46.232238] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 46.232301] rtnetlink_rcv_msg+0x358/0x400 [ 46.232345] ? ovl_update_time+0x90/0x90 [ 46.232390] ? request_wait_answer+0xcc/0x1d0 [ 46.232451] ? housekeeping_test_cpu+0x40/0x40 [ 46.232512] ? rtnl_calcit.isra.0+0x110/0x110 [ 46.232567] netlink_rcv_skb+0x57/0x100 [ 46.232624] netlink_unicast+0x252/0x380 [ 46.232676] ? __alloc_skb+0xdb/0x190 [ 46.232723] netlink_sendmsg+0x1be/0x3e0 [ 46.232772] ____sys_sendmsg+0x132/0x260 [ 46.232816] ? copy_msghdr_from_user+0x6c/0xa0 [ 46.232877] ___sys_sendmsg+0x87/0xd0 [ 46.232923] ? __wake_up_sync_key+0x3d/0x50 [ 46.232971] ? anon_pipe_write+0x314/0x650 [ 46.233019] ? fsnotify_grab_connector+0x48/0x80 [ 46.233080] ? fsnotify_destroy_marks+0x29/0x150 [ 46.233132] __sys_sendmsg+0x71/0xd0 [ 46.233180] do_syscall_64+0xa4/0xfd0 [ 46.233228] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 46.233286] RIP: 0033:0x7fdecba631d7 [ 46.233338] 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 [ 46.233530] RSP: 002b:00007fff99d7bae8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 46.233616] RAX: ffffffffffffffda RBX: 000000003139a320 RCX: 00007fdecba631d7 [ 46.233695] RDX: 0000000000000000 RSI: 00007fff99d7bb20 RDI: 0000000000000005 [ 46.233774] RBP: 000000003139a230 R08: 0000000000000003 R09: 0000000000000000 [ 46.233852] R10: 0000000000001000 R11: 0000000000000246 R12: 00000000313bf830 [ 46.233929] R13: 00007fff99d7bb20 R14: 0000000000000000 R15: 00007fff99d7bc80 [ 46.234013] [ 46.234039] ---[ end trace 0000000000000000 ]--- [ 46.234741] teamd (351) used greatest stack depth: 11744 bytes left