[ 2.093344] ip (249) used greatest stack depth: 12344 bytes left [ 2.345041] 8021q: 802.1Q VLAN Support v1.8 [ 2.889351] br10: port 1(veth1.10) entered blocking state [ 2.889462] br10: port 1(veth1.10) entered disabled state [ 2.889545] veth1.10: entered allmulticast mode [ 2.889613] veth1: entered allmulticast mode [ 2.889740] veth1.10: entered promiscuous mode [ 2.889824] veth1: entered promiscuous mode [ 2.902296] br10: port 2(veth2.10) entered blocking state [ 2.902360] br10: port 2(veth2.10) entered disabled state [ 2.902418] veth2.10: entered allmulticast mode [ 2.902470] veth2: entered allmulticast mode [ 2.902573] veth2.10: entered promiscuous mode [ 2.902624] veth2: entered promiscuous mode [ 2.915270] br10: port 2(veth2.10) entered blocking state [ 2.915329] br10: port 2(veth2.10) entered forwarding state [ 2.915384] br10: port 1(veth1.10) entered blocking state [ 2.915434] br10: port 1(veth1.10) entered forwarding state [ 3.020958] br11: port 1(veth1.11) entered blocking state [ 3.021022] br11: port 1(veth1.11) entered disabled state [ 3.021084] veth1.11: entered allmulticast mode [ 3.021171] veth1.11: entered promiscuous mode [ 3.033891] br11: port 2(veth2.11) entered blocking state [ 3.033984] br11: port 2(veth2.11) entered disabled state [ 3.034071] veth2.11: entered allmulticast mode [ 3.034192] veth2.11: entered promiscuous mode [ 3.046524] br11: port 2(veth2.11) entered blocking state [ 3.046581] br11: port 2(veth2.11) entered forwarding state [ 3.046630] br11: port 1(veth1.11) entered blocking state [ 3.046680] br11: port 1(veth1.11) entered forwarding state [ 3.147083] br12: port 1(veth1.12) entered blocking state [ 3.147157] br12: port 1(veth1.12) entered disabled state [ 3.147223] veth1.12: entered allmulticast mode [ 3.147307] veth1.12: entered promiscuous mode [ 3.159731] br12: port 2(veth2.12) entered blocking state [ 3.159789] br12: port 2(veth2.12) entered disabled state [ 3.159849] veth2.12: entered allmulticast mode [ 3.159931] veth2.12: entered promiscuous mode [ 3.172421] br12: port 2(veth2.12) entered blocking state [ 3.172536] br12: port 2(veth2.12) entered forwarding state [ 3.172616] br12: port 1(veth1.12) entered blocking state [ 3.172686] br12: port 1(veth1.12) entered forwarding state [ 375.321136] br12: port 2(veth2.12) entered disabled state [ 375.336053] br12: port 1(veth1.12) entered disabled state [ 375.363341] veth2.12: left allmulticast mode [ 375.363423] veth2.12: left promiscuous mode [ 375.363473] br12: port 2(veth2.12) entered disabled state [ 375.375929] veth1.12: left allmulticast mode [ 375.375997] veth1.12: left promiscuous mode [ 375.376052] br12: port 1(veth1.12) entered disabled state [ 375.410142] ------------[ cut here ]------------ [ 375.410248] refcount_t: underflow; use-after-free. [ 375.410351] WARNING: CPU: 0 PID: 1968 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 375.410464] Modules linked in: em_meta cls_basic sch_ets sch_tbf bridge stp llc 8021q vrf veth [ 375.410566] CPU: 0 UID: 0 PID: 1968 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 375.410661] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 375.410706] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 375.410751] Code: 94 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 94 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 [ 375.410928] RSP: 0018:ffffb370c131f730 EFLAGS: 00010282 [ 375.410976] RAX: 0000000000000000 RBX: ffffb370c131f740 RCX: 00000000ffffdfff [ 375.411040] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 375.411102] RBP: ffffb370c131f248 R08: ffffffff94d56a28 R09: 00000000ffffdfff [ 375.411168] R10: ffffffff94c76a40 R11: ffffffff94d26a40 R12: dead000000000122 [ 375.411222] R13: 0000000100012614 R14: 0000000000000001 R15: ffff92b2467b7000 [ 375.411300] FS: 00007f600b9c7800(0000) GS:ffff92b2e97d9000(0000) knlGS:0000000000000000 [ 375.411366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 375.411412] CR2: 00000000004e5460 CR3: 00000000066c0002 CR4: 0000000000772ef0 [ 375.411467] PKRU: 55555554 [ 375.411492] Call Trace: [ 375.411528] [ 375.411552] netdev_run_todo+0x21a/0x550 [ 375.411622] rtnl_dellink+0x15b/0x350 [ 375.411671] ? virtio_fs_enqueue_req+0x352/0x570 [ 375.411724] ? netdev_run_todo+0x63/0x550 [ 375.411764] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 375.411806] rtnetlink_rcv_msg+0x358/0x400 [ 375.411840] ? get_page_from_freelist+0x15b4/0x1770 [ 375.411894] ? rtnl_calcit.isra.0+0x110/0x110 [ 375.411935] netlink_rcv_skb+0x57/0x100 [ 375.411991] netlink_unicast+0x252/0x380 [ 375.412023] ? __alloc_skb+0xdb/0x190 [ 375.412062] netlink_sendmsg+0x1be/0x3e0 [ 375.412102] ____sys_sendmsg+0x132/0x260 [ 375.412155] ? copy_msghdr_from_user+0x6c/0xa0 [ 375.412200] ___sys_sendmsg+0x87/0xd0 [ 375.412242] ? do_wp_page+0x369/0xe90 [ 375.412292] ? ___pte_offset_map+0x1b/0xd0 [ 375.412328] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 375.412382] ? fsnotify_grab_connector+0x48/0x80 [ 375.412433] ? fsnotify_destroy_marks+0x29/0x150 [ 375.412477] __sys_sendmsg+0x71/0xd0 [ 375.412512] do_syscall_64+0xa4/0xfd0 [ 375.412565] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 375.412614] RIP: 0033:0x7f600bb951d7 [ 375.412654] 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 [ 375.412786] RSP: 002b:00007ffc060aad28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 375.412844] RAX: ffffffffffffffda RBX: 00007ffc060ab450 RCX: 00007f600bb951d7 [ 375.412897] RDX: 0000000000000000 RSI: 00007ffc060aad90 RDI: 0000000000000005 [ 375.412957] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 375.413017] R10: 00007f600ba91f60 R11: 0000000000000246 R12: 0000000000000002 [ 375.413070] R13: 00000000690de3c3 R14: 0000000000499600 R15: 0000000000000000 [ 375.413134] [ 375.413165] ---[ end trace 0000000000000000 ]--- [ 375.413753] ip (1968) used greatest stack depth: 11744 bytes left [ 375.473454] br11: port 2(veth2.11) entered disabled state [ 375.485744] br11: port 1(veth1.11) entered disabled state [ 375.511114] veth2.11: left allmulticast mode [ 375.511187] veth2.11: left promiscuous mode [ 375.511240] br11: port 2(veth2.11) entered disabled state [ 375.524283] veth1.11: left allmulticast mode [ 375.524400] veth1.11: left promiscuous mode [ 375.524482] br11: port 1(veth1.11) entered disabled state [ 375.610152] br10: port 2(veth2.10) entered disabled state [ 375.622402] br10: port 1(veth1.10) entered disabled state [ 375.647032] veth2.10: left allmulticast mode [ 375.647144] veth2: left allmulticast mode [ 375.647210] veth2.10: left promiscuous mode [ 375.647267] veth2: left promiscuous mode [ 375.647339] br10: port 2(veth2.10) entered disabled state [ 375.659919] veth1.10: left allmulticast mode [ 375.659984] veth1: left allmulticast mode [ 375.660016] veth1.10: left promiscuous mode [ 375.660046] veth1: left promiscuous mode [ 375.660085] br10: port 1(veth1.10) entered disabled state