[ 2.151060] ip (252) used greatest stack depth: 12424 bytes left [ 2.250658] ip (265) used greatest stack depth: 12344 bytes left [ 2.468379] lag1: Mode changed to "loadbalance" [ 2.532497] lag1: Port device veth0 added [ 2.543350] lag1: Port device veth6 added [ 2.676381] 8021q: 802.1Q VLAN Support v1.8 [ 2.676486] 8021q: adding VLAN 0 to HW filter on device lag1 [ 2.854079] lag4: Mode changed to "loadbalance" [ 2.869762] 8021q: adding VLAN 0 to HW filter on device lag4 [ 2.920948] lag4: Port device veth3 added [ 2.933977] lag4: Port device veth5 added [ 3.003615] 8021q: adding VLAN 0 to HW filter on device lag4 [ 3.227480] lag2: Mode changed to "loadbalance" [ 3.243043] 8021q: adding VLAN 0 to HW filter on device lag2 [ 3.303514] lag2: Port device veth1 added [ 3.321772] lag2: Port device veth7 added [ 3.486392] br1: port 1(lag2.100) entered blocking state [ 3.486468] br1: port 1(lag2.100) entered disabled state [ 3.486533] lag2.100: entered allmulticast mode [ 3.486580] lag2: entered allmulticast mode [ 3.486608] veth1: entered allmulticast mode [ 3.486659] veth7: entered allmulticast mode [ 3.486770] lag2.100: entered promiscuous mode [ 3.486818] lag2: entered promiscuous mode [ 3.486843] veth1: entered promiscuous mode [ 3.486890] veth7: entered promiscuous mode [ 3.550419] br2: port 1(lag2.200) entered blocking state [ 3.550493] br2: port 1(lag2.200) entered disabled state [ 3.550576] lag2.200: entered allmulticast mode [ 3.550714] lag2.200: entered promiscuous mode [ 3.589648] br1: port 1(lag2.100) entered blocking state [ 3.589728] br1: port 1(lag2.100) entered forwarding state [ 3.602833] br2: port 1(lag2.200) entered blocking state [ 3.602943] br2: port 1(lag2.200) entered forwarding state [ 3.675159] lag3: Mode changed to "loadbalance" [ 3.689709] 8021q: adding VLAN 0 to HW filter on device lag3 [ 3.741859] lag3: Port device veth2 added [ 3.754038] lag3: Port device veth4 added [ 13.054879] veth7: left promiscuous mode [ 13.054987] veth7: left allmulticast mode [ 13.055269] lag2: Port device veth7 removed [ 27.114058] veth7: entered promiscuous mode [ 27.114134] veth7: entered allmulticast mode [ 27.114259] lag2: Port device veth7 added [ 27.158603] veth1: left promiscuous mode [ 27.158694] veth1: left allmulticast mode [ 27.158869] lag2: Port device veth1 removed [ 41.187359] br1: port 1(lag2.100) entered disabled state [ 41.187516] br2: port 1(lag2.200) entered disabled state [ 41.198020] veth7: left promiscuous mode [ 41.198145] veth7: left allmulticast mode [ 41.198399] lag2: Port device veth7 removed [ 41.239291] veth1: entered promiscuous mode [ 41.239399] veth1: entered allmulticast mode [ 41.239599] lag2: Port device veth1 added [ 41.240584] ip (647) used greatest stack depth: 12264 bytes left [ 41.241658] br1: port 1(lag2.100) entered blocking state [ 41.241733] br1: port 1(lag2.100) entered forwarding state [ 41.241818] br2: port 1(lag2.200) entered blocking state [ 41.241872] br2: port 1(lag2.200) entered forwarding state [ 41.285030] veth7: entered promiscuous mode [ 41.285112] veth7: entered allmulticast mode [ 41.285290] lag2: Port device veth7 added [ 55.327790] lag2.200: left allmulticast mode [ 55.327885] lag2.200: left promiscuous mode [ 55.327962] br2: port 1(lag2.200) entered disabled state [ 55.340109] lag2.100: left allmulticast mode [ 55.340194] lag2: left allmulticast mode [ 55.340248] veth1: left allmulticast mode [ 55.340304] veth7: left allmulticast mode [ 55.340384] lag2.100: left promiscuous mode [ 55.340433] lag2: left promiscuous mode [ 55.340484] veth1: left promiscuous mode [ 55.340572] veth7: left promiscuous mode [ 55.340663] br1: port 1(lag2.100) entered disabled state [ 57.360863] br1: port 1(lag2.100) entered blocking state [ 57.360932] br1: port 1(lag2.100) entered disabled state [ 57.360997] lag2.100: entered allmulticast mode [ 57.361054] lag2: entered allmulticast mode [ 57.361089] veth1: entered allmulticast mode [ 57.361136] veth7: entered allmulticast mode [ 57.361271] lag2.100: entered promiscuous mode [ 57.361315] lag2: entered promiscuous mode [ 57.361355] veth1: entered promiscuous mode [ 57.361394] veth7: entered promiscuous mode [ 57.361555] br1: port 1(lag2.100) entered blocking state [ 57.361631] br1: port 1(lag2.100) entered forwarding state [ 57.372082] br2: port 1(lag2.200) entered blocking state [ 57.372200] br2: port 1(lag2.200) entered disabled state [ 57.372304] lag2.200: entered allmulticast mode [ 57.372444] lag2.200: entered promiscuous mode [ 57.372546] br2: port 1(lag2.200) entered blocking state [ 57.372632] br2: port 1(lag2.200) entered forwarding state [ 71.420479] lag3: Port device veth2 removed [ 85.490453] lag3: Port device veth2 added [ 85.543358] lag3: Port device veth4 removed [ 99.605553] lag3: Port device veth2 removed [ 99.655617] lag3: Port device veth4 added [ 99.705306] lag3: Port device veth2 added [ 113.817298] ------------[ cut here ]------------ [ 113.817477] refcount_t: underflow; use-after-free. [ 113.817614] WARNING: CPU: 2 PID: 1001 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 113.817768] Modules linked in: bridge stp llc 8021q vrf veth [ 113.817870] CPU: 2 UID: 0 PID: 1001 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 113.817965] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 113.818046] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 113.818115] Code: b6 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 b6 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 [ 113.818309] RSP: 0018:ffffba2a4119f730 EFLAGS: 00010282 [ 113.818378] RAX: 0000000000000000 RBX: ffffba2a4119f740 RCX: 00000000ffffdfff [ 113.818459] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 113.818542] RBP: ffffba2a4119f248 R08: ffffffffb7156a28 R09: 00000000ffffdfff [ 113.818622] R10: ffffffffb7076a40 R11: ffffffffb7126a40 R12: dead000000000122 [ 113.818732] R13: 00000000fffd2834 R14: 0000000000000001 R15: ffff986cc3292000 [ 113.818814] FS: 00007f12d7a60800(0000) GS:ffff986d474d9000(0000) knlGS:0000000000000000 [ 113.818894] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 113.818966] CR2: 00000000004e5be0 CR3: 0000000001ba8006 CR4: 0000000000772ef0 [ 113.819049] PKRU: 55555554 [ 113.819094] Call Trace: [ 113.819151] [ 113.819208] netdev_run_todo+0x21a/0x550 [ 113.819303] rtnl_dellink+0x15b/0x350 [ 113.819381] ? virtio_fs_enqueue_req+0x352/0x570 [ 113.819459] ? netdev_run_todo+0x63/0x550 [ 113.819514] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 113.819578] rtnetlink_rcv_msg+0x358/0x400 [ 113.819639] ? get_page_from_freelist+0x15b4/0x1770 [ 113.819713] ? rtnl_calcit.isra.0+0x110/0x110 [ 113.819784] netlink_rcv_skb+0x57/0x100 [ 113.819858] netlink_unicast+0x252/0x380 [ 113.819923] ? __alloc_skb+0xdb/0x190 [ 113.819988] netlink_sendmsg+0x1be/0x3e0 [ 113.820045] ____sys_sendmsg+0x132/0x260 [ 113.820113] ? copy_msghdr_from_user+0x6c/0xa0 [ 113.820208] ___sys_sendmsg+0x87/0xd0 [ 113.820278] ? do_wp_page+0x369/0xe90 [ 113.820343] ? ___pte_offset_map+0x1b/0xd0 [ 113.820404] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 113.820478] ? fsnotify_grab_connector+0x48/0x80 [ 113.820551] ? fsnotify_destroy_marks+0x29/0x150 [ 113.820615] __sys_sendmsg+0x71/0xd0 [ 113.820708] do_syscall_64+0xa4/0xfd0 [ 113.820790] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 113.820869] RIP: 0033:0x7f12d7c2e1d7 [ 113.820934] 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 [ 113.821088] RSP: 002b:00007fffa40e1e08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 113.821170] RAX: ffffffffffffffda RBX: 00007fffa40e2530 RCX: 00007f12d7c2e1d7 [ 113.821259] RDX: 0000000000000000 RSI: 00007fffa40e1e70 RDI: 0000000000000005 [ 113.821346] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 113.821424] R10: 00007f12d7b2af60 R11: 0000000000000246 R12: 0000000000000002 [ 113.821501] R13: 00000000690de586 R14: 0000000000499600 R15: 0000000000000000 [ 113.821579] [ 113.821628] ---[ end trace 0000000000000000 ]--- [ 113.822344] ip (1001) used greatest stack depth: 11744 bytes left [ 113.880458] lag3: Port device veth4 removed [ 113.892146] lag3: Port device veth2 removed [ 114.072737] br2: port 1(lag2.200) entered disabled state [ 114.084316] br1: port 1(lag2.100) entered disabled state [ 114.119605] lag2.200: left allmulticast mode [ 114.119695] lag2.200: left promiscuous mode [ 114.119764] br2: port 1(lag2.200) entered disabled state [ 114.162744] lag2.100: left allmulticast mode [ 114.162824] lag2: left allmulticast mode [ 114.162863] veth1: left allmulticast mode [ 114.162899] veth7: left allmulticast mode [ 114.162940] lag2.100: left promiscuous mode [ 114.162978] lag2: left promiscuous mode [ 114.163006] veth1: left promiscuous mode [ 114.163070] veth7: left promiscuous mode [ 114.163130] br1: port 1(lag2.100) entered disabled state [ 114.249259] lag2: Port device veth7 removed [ 114.261928] lag2: Port device veth1 removed [ 114.605579] lag4: Port device veth5 removed [ 114.617834] lag4: Port device veth3 removed [ 114.944637] lag1: Port device veth6 removed [ 114.956747] lag1: Port device veth0 removed