[    2.092214] ip (248) used greatest stack depth: 12320 bytes left
[  174.017264] ------------[ cut here ]------------
[  174.017398] refcount_t: underflow; use-after-free.
[  174.017500] WARNING: CPU: 0 PID: 17204 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[  174.017633] Modules linked in: vrf veth
[  174.017694] CPU: 0 UID: 0 PID: 17204 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[  174.017798] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  174.017864] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[  174.017933] Code: a8 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 b1 a8 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
[  174.018150] RSP: 0018:ffffb6b3c424f730 EFLAGS: 00010282
[  174.018220] RAX: 0000000000000000 RBX: ffffb6b3c424f740 RCX: 00000000ffffdfff
[  174.018288] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[  174.018363] RBP: ffffb6b3c424f248 R08: ffffffffa8f56a28 R09: 00000000ffffdfff
[  174.018431] R10: ffffffffa8e76a40 R11: ffffffffa8f26a40 R12: dead000000000122
[  174.018495] R13: 00000000fffe1355 R14: 0000000000000001 R15: ffff9ac10112c000
[  174.018558] FS:  00007f2d67268800(0000) GS:ffff9ac1955d9000(0000) knlGS:0000000000000000
[  174.018623] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  174.018671] CR2: 00000000004e73f0 CR3: 00000000070fd005 CR4: 0000000000772ef0
[  174.018731] PKRU: 55555554
[  174.018753] Call Trace:
[  174.018778]  <TASK>
[  174.018804]  netdev_run_todo+0x21a/0x550
[  174.018868]  rtnl_dellink+0x15b/0x350
[  174.018919]  ? virtio_fs_enqueue_req+0x352/0x570
[  174.018988]  ? netdev_run_todo+0x63/0x550
[  174.019035]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[  174.019094]  rtnetlink_rcv_msg+0x358/0x400
[  174.019128]  ? get_page_from_freelist+0x15b4/0x1770
[  174.019177]  ? rtnl_calcit.isra.0+0x110/0x110
[  174.019226]  netlink_rcv_skb+0x57/0x100
[  174.019275]  netlink_unicast+0x252/0x380
[  174.019311]  ? __alloc_skb+0xdb/0x190
[  174.019350]  netlink_sendmsg+0x1be/0x3e0
[  174.019384]  ____sys_sendmsg+0x132/0x260
[  174.019428]  ? copy_msghdr_from_user+0x6c/0xa0
[  174.019478]  ___sys_sendmsg+0x87/0xd0
[  174.019522]  ? do_wp_page+0x369/0xe90
[  174.019576]  ? nfulnl_rcv_nl_event+0x36/0xa0
[  174.019631]  ? fsnotify_grab_connector+0x48/0x80
[  174.019688]  ? fsnotify_destroy_marks+0x29/0x150
[  174.019736]  __sys_sendmsg+0x71/0xd0
[  174.019776]  do_syscall_64+0xa4/0xfd0
[  174.019823]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  174.019885] RIP: 0033:0x7f2d674361d7
[  174.019927] 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
[  174.020081] RSP: 002b:00007fff8e1f5f58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  174.020146] RAX: ffffffffffffffda RBX: 00007fff8e1f6680 RCX: 00007f2d674361d7
[  174.020216] RDX: 0000000000000000 RSI: 00007fff8e1f5fc0 RDI: 0000000000000005
[  174.020278] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[  174.020344] R10: 00007f2d67332f60 R11: 0000000000000246 R12: 0000000000000002
[  174.020401] R13: 00000000690de521 R14: 0000000000499600 R15: 0000000000000000
[  174.020454]  </TASK>
[  174.020482] ---[ end trace 0000000000000000 ]---
[  174.021070] ip (17204) used greatest stack depth: 11744 bytes left