[ 2.030486] ip (262) used greatest stack depth: 12344 bytes left [ 2.094448] br: port 1(d1) entered blocking state [ 2.094527] br: port 1(d1) entered disabled state [ 2.094681] d1: entered allmulticast mode [ 2.094794] d1: entered promiscuous mode [ 2.094871] br: port 1(d1) entered blocking state [ 2.094943] br: port 1(d1) entered forwarding state [ 2.176750] br: port 2(d2) entered blocking state [ 2.176848] br: port 2(d2) entered disabled state [ 2.176923] d2: entered allmulticast mode [ 2.177024] d2: entered promiscuous mode [ 2.177085] br: port 2(d2) entered blocking state [ 2.177140] br: port 2(d2) entered forwarding state [ 2.192868] ip (318) used greatest stack depth: 12312 bytes left [ 2.262559] br: port 3(d3) entered blocking state [ 2.262670] br: port 3(d3) entered disabled state [ 2.262765] d3: entered allmulticast mode [ 2.262865] d3: entered promiscuous mode [ 2.262942] br: port 3(d3) entered blocking state [ 2.263012] br: port 3(d3) entered forwarding state [ 2.543300] br: port 1(d1) entered disabled state [ 2.645870] br: port 1(d1) entered blocking state [ 2.645960] br: port 1(d1) entered forwarding state [ 2.672590] br: port 2(d2) entered disabled state [ 2.777852] br: port 2(d2) entered blocking state [ 2.777941] br: port 2(d2) entered forwarding state [ 2.805479] br: port 1(d1) entered disabled state [ 2.832219] br: port 2(d2) entered disabled state [ 2.939648] br: port 2(d2) entered blocking state [ 2.939728] br: port 2(d2) entered forwarding state [ 2.953481] br: port 1(d1) entered blocking state [ 2.953606] br: port 1(d1) entered forwarding state [ 2.981804] br: port 1(d1) entered disabled state [ 3.007646] br: port 2(d2) entered disabled state [ 3.034736] br: port 3(d3) entered disabled state [ 3.141454] br: port 3(d3) entered blocking state [ 3.141582] br: port 3(d3) entered forwarding state [ 3.157340] br: port 2(d2) entered blocking state [ 3.157457] br: port 2(d2) entered forwarding state [ 3.173479] br: port 1(d1) entered blocking state [ 3.173591] br: port 1(d1) entered forwarding state [ 3.206624] ------------[ cut here ]------------ [ 3.206727] refcount_t: underflow; use-after-free. [ 3.206797] WARNING: CPU: 0 PID: 637 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 3.206875] Modules linked in: [ 3.206915] CPU: 0 UID: 0 PID: 637 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 3.207015] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 3.207086] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 3.207151] Code: 9e e8 e8 54 ba ff 90 0f 0b 90 90 c3 80 3d 00 e6 2b 01 00 75 89 c6 05 f7 e5 2b 01 01 90 48 c7 c7 f8 48 55 9e e8 c5 54 ba ff 90 <0f> 0b 90 90 c3 80 3d db e5 2b 01 00 0f 85 62 ff ff ff c6 05 ce e5 [ 3.207354] RSP: 0018:ffffbf1340b97730 EFLAGS: 00010282 [ 3.207418] RAX: 0000000000000000 RBX: ffffbf1340b97740 RCX: 00000000ffffdfff [ 3.207476] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 3.207536] RBP: ffffbf1340b97238 R08: ffffffff9ed5ba28 R09: 00000000ffffdfff [ 3.207603] R10: ffffffff9ec7ba40 R11: ffffffff9ed2ba40 R12: dead000000000122 [ 3.207690] R13: 00000000fffb781c R14: 0000000000000001 R15: ffff9dd682d65000 [ 3.207754] FS: 00007fad1d414800(0000) GS:ffff9dd71f791000(0000) knlGS:0000000000000000 [ 3.207812] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.207865] CR2: 00007f1f16a225f0 CR3: 0000000006fc9004 CR4: 0000000000772ef0 [ 3.207925] PKRU: 55555554 [ 3.207957] Call Trace: [ 3.207985] [ 3.208009] netdev_run_todo+0x21a/0x550 [ 3.208059] rtnl_dellink+0x15b/0x350 [ 3.208103] ? virtio_fs_enqueue_req+0x352/0x570 [ 3.208151] ? netdev_run_todo+0x63/0x550 [ 3.208184] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 3.208219] rtnetlink_rcv_msg+0x358/0x400 [ 3.208245] ? get_page_from_freelist+0x15b4/0x1770 [ 3.208289] ? rtnl_calcit.isra.0+0x110/0x110 [ 3.208331] netlink_rcv_skb+0x57/0x100 [ 3.208374] netlink_unicast+0x252/0x380 [ 3.208406] ? __alloc_skb+0xdb/0x190 [ 3.208446] netlink_sendmsg+0x1be/0x3e0 [ 3.208482] ____sys_sendmsg+0x132/0x260 [ 3.208521] ? copy_msghdr_from_user+0x6c/0xa0 [ 3.208570] ___sys_sendmsg+0x87/0xd0 [ 3.208604] ? do_wp_page+0x369/0xe90 [ 3.208637] ? ___pte_offset_map+0x1b/0xd0 [ 3.208676] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 3.208726] ? fsnotify_grab_connector+0x48/0x80 [ 3.208780] ? fsnotify_destroy_marks+0x29/0x150 [ 3.208826] __sys_sendmsg+0x71/0xd0 [ 3.208862] do_syscall_64+0xa4/0xfd0 [ 3.208902] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 3.208950] RIP: 0033:0x7fad1d5e21d7 [ 3.208990] 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 [ 3.209147] RSP: 002b:00007ffced9cf958 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3.209232] RAX: ffffffffffffffda RBX: 00007ffced9d0080 RCX: 00007fad1d5e21d7 [ 3.209293] RDX: 0000000000000000 RSI: 00007ffced9cf9c0 RDI: 0000000000000005 [ 3.209365] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 3.209421] R10: 00007fad1d4def60 R11: 0000000000000246 R12: 0000000000000002 [ 3.209477] R13: 00000000690de97b R14: 0000000000499600 R15: 0000000000000000 [ 3.209539] [ 3.209568] ---[ end trace 0000000000000000 ]--- [ 3.210333] ip (637) used greatest stack depth: 11744 bytes left [ 3.440568] br: port 1(d1) entered disabled state [ 3.566873] br: port 1(d1) entered blocking state [ 3.566947] br: port 1(d1) entered forwarding state [ 3.597151] br: port 2(d2) entered disabled state [ 3.710044] br: port 2(d2) entered blocking state [ 3.710136] br: port 2(d2) entered forwarding state [ 3.739825] br: port 1(d1) entered disabled state [ 3.768188] br: port 2(d2) entered disabled state [ 3.870359] br: port 2(d2) entered blocking state [ 3.870425] br: port 2(d2) entered forwarding state [ 3.883656] br: port 1(d1) entered blocking state [ 3.883740] br: port 1(d1) entered forwarding state [ 3.911494] br: port 1(d1) entered disabled state [ 3.939085] br: port 2(d2) entered disabled state [ 3.968258] br: port 3(d3) entered disabled state [ 4.116681] br: port 3(d3) entered blocking state [ 4.116762] br: port 3(d3) entered forwarding state [ 4.132539] br: port 2(d2) entered blocking state [ 4.132616] br: port 2(d2) entered forwarding state [ 4.148262] br: port 1(d1) entered blocking state [ 4.148341] br: port 1(d1) entered forwarding state [ 4.432803] br: port 1(d1) entered disabled state [ 4.543901] br: port 1(d1) entered blocking state [ 4.544011] br: port 1(d1) entered forwarding state [ 4.572714] br: port 2(d2) entered disabled state [ 4.675904] br: port 2(d2) entered blocking state [ 4.675977] br: port 2(d2) entered forwarding state [ 4.704150] br: port 1(d1) entered disabled state [ 4.728999] br: port 2(d2) entered disabled state [ 4.834494] br: port 2(d2) entered blocking state [ 4.834585] br: port 2(d2) entered forwarding state [ 4.848088] br: port 1(d1) entered blocking state [ 4.848195] br: port 1(d1) entered forwarding state [ 4.876124] br: port 1(d1) entered disabled state [ 4.902877] br: port 2(d2) entered disabled state [ 4.928195] br: port 3(d3) entered disabled state [ 5.030615] br: port 3(d3) entered blocking state [ 5.030718] br: port 3(d3) entered forwarding state [ 5.045034] br: port 2(d2) entered blocking state [ 5.045127] br: port 2(d2) entered forwarding state [ 5.060290] br: port 1(d1) entered blocking state [ 5.060372] br: port 1(d1) entered forwarding state [ 5.331138] br: port 1(d1) entered disabled state [ 5.431837] br: port 1(d1) entered blocking state [ 5.431926] br: port 1(d1) entered forwarding state [ 5.458456] br: port 2(d2) entered disabled state [ 5.557436] br: port 2(d2) entered blocking state [ 5.557501] br: port 2(d2) entered forwarding state [ 5.584440] br: port 1(d1) entered disabled state [ 5.610378] br: port 2(d2) entered disabled state [ 5.714786] br: port 2(d2) entered blocking state [ 5.714893] br: port 2(d2) entered forwarding state [ 5.728719] br: port 1(d1) entered blocking state [ 5.728799] br: port 1(d1) entered forwarding state [ 5.756487] br: port 1(d1) entered disabled state [ 5.782910] br: port 2(d2) entered disabled state [ 5.808508] br: port 3(d3) entered disabled state [ 5.937069] br: port 3(d3) entered blocking state [ 5.937175] br: port 3(d3) entered forwarding state [ 5.950668] br: port 2(d2) entered blocking state [ 5.950760] br: port 2(d2) entered forwarding state [ 5.964586] br: port 1(d1) entered blocking state [ 5.964682] br: port 1(d1) entered forwarding state [ 6.275133] br: port 1(d1) entered disabled state [ 6.383639] br: port 1(d1) entered blocking state [ 6.383765] br: port 1(d1) entered forwarding state [ 6.411408] br: port 2(d2) entered disabled state [ 6.513604] br: port 2(d2) entered blocking state [ 6.513708] br: port 2(d2) entered forwarding state [ 6.540498] br: port 1(d1) entered disabled state [ 6.566714] br: port 2(d2) entered disabled state [ 6.670362] br: port 2(d2) entered blocking state [ 6.670471] br: port 2(d2) entered forwarding state [ 6.684898] br: port 1(d1) entered blocking state [ 6.685016] br: port 1(d1) entered forwarding state [ 6.711748] br: port 1(d1) entered disabled state [ 6.738758] br: port 2(d2) entered disabled state [ 6.763838] br: port 3(d3) entered disabled state [ 6.866709] br: port 3(d3) entered blocking state [ 6.866780] br: port 3(d3) entered forwarding state [ 6.880832] br: port 2(d2) entered blocking state [ 6.880903] br: port 2(d2) entered forwarding state [ 6.894765] br: port 1(d1) entered blocking state [ 6.894849] br: port 1(d1) entered forwarding state [ 7.185983] br: port 1(d1) entered disabled state [ 7.286437] br: port 1(d1) entered blocking state [ 7.286522] br: port 1(d1) entered forwarding state [ 7.314507] br: port 2(d2) entered disabled state [ 7.415265] br: port 2(d2) entered blocking state [ 7.415342] br: port 2(d2) entered forwarding state [ 7.443785] br: port 1(d1) entered disabled state [ 7.470094] br: port 2(d2) entered disabled state [ 7.573415] br: port 2(d2) entered blocking state [ 7.573496] br: port 2(d2) entered forwarding state [ 7.587782] br: port 1(d1) entered blocking state [ 7.587844] br: port 1(d1) entered forwarding state [ 7.614691] br: port 1(d1) entered disabled state [ 7.641298] br: port 2(d2) entered disabled state [ 7.667008] br: port 3(d3) entered disabled state [ 7.790413] br: port 3(d3) entered blocking state [ 7.790493] br: port 3(d3) entered forwarding state [ 7.803357] br: port 2(d2) entered blocking state [ 7.803433] br: port 2(d2) entered forwarding state [ 7.816224] br: port 1(d1) entered blocking state [ 7.816325] br: port 1(d1) entered forwarding state [ 8.060085] br: port 1(d1) entered disabled state [ 8.246893] br: port 1(d1) entered blocking state [ 8.247028] br: port 1(d1) entered forwarding state [ 8.276051] br: port 2(d2) entered disabled state [ 8.468674] br: port 2(d2) entered blocking state [ 8.468749] br: port 2(d2) entered forwarding state [ 8.495087] br: port 1(d1) entered disabled state [ 8.519787] br: port 2(d2) entered disabled state [ 8.718665] br: port 2(d2) entered blocking state [ 8.718780] br: port 2(d2) entered forwarding state [ 8.732403] br: port 1(d1) entered blocking state [ 8.732510] br: port 1(d1) entered forwarding state [ 8.758300] br: port 1(d1) entered disabled state [ 8.782958] br: port 2(d2) entered disabled state [ 8.807355] br: port 3(d3) entered disabled state [ 8.983778] br: port 3(d3) entered blocking state [ 8.983848] br: port 3(d3) entered forwarding state [ 8.996289] br: port 2(d2) entered blocking state [ 8.996366] br: port 2(d2) entered forwarding state [ 9.009182] br: port 1(d1) entered blocking state [ 9.009247] br: port 1(d1) entered forwarding state [ 9.241423] br: port 1(d1) entered disabled state [ 9.419656] br: port 1(d1) entered blocking state [ 9.419768] br: port 1(d1) entered forwarding state [ 9.443827] br: port 2(d2) entered disabled state [ 9.628718] br: port 2(d2) entered blocking state [ 9.628792] br: port 2(d2) entered forwarding state [ 9.654624] br: port 1(d1) entered disabled state [ 9.678819] br: port 2(d2) entered disabled state [ 9.874977] br: port 2(d2) entered blocking state [ 9.875056] br: port 2(d2) entered forwarding state [ 9.888851] br: port 1(d1) entered blocking state [ 9.888964] br: port 1(d1) entered forwarding state [ 9.916340] br: port 1(d1) entered disabled state [ 9.942963] br: port 2(d2) entered disabled state [ 9.970272] br: port 3(d3) entered disabled state [ 10.168120] br: port 3(d3) entered blocking state [ 10.168199] br: port 3(d3) entered forwarding state [ 10.182081] br: port 2(d2) entered blocking state [ 10.182197] br: port 2(d2) entered forwarding state [ 10.196092] br: port 1(d1) entered blocking state [ 10.196200] br: port 1(d1) entered forwarding state [ 10.461671] d3: left allmulticast mode [ 10.461777] d3: left promiscuous mode [ 10.461854] br: port 3(d3) entered disabled state [ 10.525655] d2: left allmulticast mode [ 10.525722] d2: left promiscuous mode [ 10.525778] br: port 2(d2) entered disabled state [ 10.587896] d1: left allmulticast mode [ 10.587996] d1: left promiscuous mode [ 10.588067] br: port 1(d1) entered disabled state