[ 2.146645] ip (274) used greatest stack depth: 12136 bytes left [ 2.548682] eth1: renamed from tmp [ 10.029498] ------------[ cut here ]------------ [ 10.029639] refcount_t: underflow; use-after-free. [ 10.029728] WARNING: CPU: 2 PID: 591 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 10.029834] Modules linked in: [ 10.029896] CPU: 2 UID: 0 PID: 591 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 10.030004] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.030087] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 10.030159] Code: 99 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 b5 99 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 [ 10.030345] RSP: 0018:ffffb35a40c4f730 EFLAGS: 00010282 [ 10.030415] RAX: 0000000000000000 RBX: ffffb35a40c4f740 RCX: 00000000ffffdfff [ 10.030517] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 10.030612] RBP: ffffb35a40c4f238 R08: ffffffff9a35ba28 R09: 00000000ffffdfff [ 10.030704] R10: ffffffff9a27ba40 R11: ffffffff9a32ba40 R12: dead000000000122 [ 10.030798] R13: 00000000fffb92ca R14: 0000000000000001 R15: ffff980b04a71000 [ 10.030895] FS: 00007f744b9be800(0000) GS:ffff980ba4291000(0000) knlGS:0000000000000000 [ 10.030990] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.031072] CR2: 00000000004e5a38 CR3: 000000000709c003 CR4: 0000000000772ef0 [ 10.031168] PKRU: 55555554 [ 10.031216] Call Trace: [ 10.031265] [ 10.031312] netdev_run_todo+0x21a/0x550 [ 10.031378] rtnl_dellink+0x15b/0x350 [ 10.031445] ? virtio_fs_enqueue_req+0x352/0x570 [ 10.031528] ? netdev_run_todo+0x63/0x550 [ 10.031611] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 10.031685] rtnetlink_rcv_msg+0x358/0x400 [ 10.031745] ? get_page_from_freelist+0x15b4/0x1770 [ 10.031819] ? rtnl_calcit.isra.0+0x110/0x110 [ 10.031891] netlink_rcv_skb+0x57/0x100 [ 10.031956] netlink_unicast+0x252/0x380 [ 10.032016] ? __alloc_skb+0xdb/0x190 [ 10.032079] netlink_sendmsg+0x1be/0x3e0 [ 10.032139] ____sys_sendmsg+0x132/0x260 [ 10.032204] ? copy_msghdr_from_user+0x6c/0xa0 [ 10.032275] ___sys_sendmsg+0x87/0xd0 [ 10.032336] ? do_wp_page+0x369/0xe90 [ 10.032397] ? ___pte_offset_map+0x1b/0xd0 [ 10.032464] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 10.032541] ? fsnotify_grab_connector+0x48/0x80 [ 10.032616] ? fsnotify_destroy_marks+0x29/0x150 [ 10.032688] __sys_sendmsg+0x71/0xd0 [ 10.032750] do_syscall_64+0xa4/0xfd0 [ 10.032814] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.032886] RIP: 0033:0x7f744bb8c1d7 [ 10.032948] 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 [ 10.033142] RSP: 002b:00007ffd03a12d88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 10.033238] RAX: ffffffffffffffda RBX: 00007ffd03a134c0 RCX: 00007f744bb8c1d7 [ 10.033332] RDX: 0000000000000000 RSI: 00007ffd03a12df0 RDI: 0000000000000005 [ 10.033426] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 10.033523] R10: 00007f744ba88510 R11: 0000000000000246 R12: 0000000000000002 [ 10.033616] R13: 00000000690de2ba R14: 0000000000499600 R15: 0000000000000000 [ 10.033711] [ 10.033759] ---[ end trace 0000000000000000 ]--- [ 10.042170] ip (591) used greatest stack depth: 11744 bytes left [ 10.690660] eth1: renamed from tmp [ 18.939680] eth1: renamed from tmp [ 27.209649] eth1: renamed from tmp [ 31.738666] eth1: renamed from tmp [ 36.154617] eth1: renamed from tmp [ 129.683627] eth1: renamed from tmp [ 132.336629] eth2: renamed from tmp [ 189.299603] eth1: renamed from tmp [ 268.375663] eth1: renamed from tmp [ 275.120642] eth1: renamed from tmp [ 278.113591] eth1: renamed from tmp [ 282.222650] eth1: renamed from tmp [ 288.617653] eth1: renamed from tmp [ 294.927599] eth1: renamed from tmp [ 301.311653] eth1: renamed from tmp [ 307.748652] eth1: renamed from tmp [ 314.141672] eth1: renamed from tmp [ 320.539689] eth1: renamed from tmp [ 326.935651] eth1: renamed from tmp [ 333.399704] eth1: renamed from tmp [ 339.865721] eth1: renamed from tmp [ 346.307604] eth1: renamed from tmp [ 352.719655] eth1: renamed from tmp [ 359.165696] eth1: renamed from tmp [ 365.556647] eth1: renamed from tmp [ 372.001680] eth1: renamed from tmp [ 378.421673] eth1: renamed from tmp [ 384.872677] eth1: renamed from tmp [ 391.343685] eth1: renamed from tmp [ 397.808624] eth1: renamed from tmp [ 404.318708] eth1: renamed from tmp [ 410.807671] eth1: renamed from tmp [ 417.295684] eth1: renamed from tmp [ 423.782680] eth1: renamed from tmp [ 430.199622] eth1: renamed from tmp [ 436.605671] eth1: renamed from tmp [ 443.101703] eth1: renamed from tmp [ 449.605707] eth1: renamed from tmp [ 456.095665] eth1: renamed from tmp [ 462.601675] eth1: renamed from tmp [ 469.179696] eth1: renamed from tmp [ 475.739703] eth1: renamed from tmp [ 482.211637] eth1: renamed from tmp