[    2.340953] ip (260) used greatest stack depth: 12408 bytes left
[    2.549914] ------------[ cut here ]------------
[    2.550062] refcount_t: underflow; use-after-free.
[    2.550132] WARNING: CPU: 3 PID: 277 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    2.550229] Modules linked in:
[    2.550270] CPU: 3 UID: 0 PID: 277 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    2.550373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.550440] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    2.550502] Code: a7 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 d5 a7 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
[    2.550684] RSP: 0018:ffffc1c5c06a7730 EFLAGS: 00010282
[    2.550735] RAX: 0000000000000000 RBX: ffffc1c5c06a7740 RCX: 00000000ffffdfff
[    2.550820] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    2.550902] RBP: ffffc1c5c06a7238 R08: ffffffffa855ba28 R09: 00000000ffffdfff
[    2.550980] R10: ffffffffa847ba40 R11: ffffffffa852ba40 R12: dead000000000122
[    2.551057] R13: 00000000fffb757d R14: 0000000000000001 R15: ffff9faf81135000
[    2.551137] FS:  00007fd7c526b800(0000) GS:ffff9fb016111000(0000) knlGS:0000000000000000
[    2.551221] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.551286] CR2: 00007fc0d9d5a5f0 CR3: 00000000060e3002 CR4: 0000000000772ef0
[    2.551367] PKRU: 55555554
[    2.551399] Call Trace:
[    2.551428]  <TASK>
[    2.551452]  netdev_run_todo+0x21a/0x550
[    2.551503]  rtnl_dellink+0x15b/0x350
[    2.551552]  ? virtio_fs_enqueue_req+0x352/0x570
[    2.551616]  ? netdev_run_todo+0x63/0x550
[    2.551655]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[    2.551709]  rtnetlink_rcv_msg+0x358/0x400
[    2.551747]  ? get_page_from_freelist+0x15b4/0x1770
[    2.551807]  ? rtnl_calcit.isra.0+0x110/0x110
[    2.551873]  netlink_rcv_skb+0x57/0x100
[    2.551925]  netlink_unicast+0x252/0x380
[    2.551964]  ? __alloc_skb+0xdb/0x190
[    2.552010]  netlink_sendmsg+0x1be/0x3e0
[    2.552049]  ____sys_sendmsg+0x132/0x260
[    2.552096]  ? copy_msghdr_from_user+0x6c/0xa0
[    2.552150]  ___sys_sendmsg+0x87/0xd0
[    2.552189]  ? do_wp_page+0x369/0xe90
[    2.552227]  ? ___pte_offset_map+0x1b/0xd0
[    2.552281]  ? nfulnl_rcv_nl_event+0x36/0xa0
[    2.552342]  ? fsnotify_grab_connector+0x48/0x80
[    2.552400]  ? fsnotify_destroy_marks+0x29/0x150
[    2.552459]  __sys_sendmsg+0x71/0xd0
[    2.552499]  do_syscall_64+0xa4/0xfd0
[    2.552547]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.552600] RIP: 0033:0x7fd7c54391d7
[    2.552645] 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
[    2.552835] RSP: 002b:00007ffcb207ca18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    2.552918] RAX: ffffffffffffffda RBX: 00007ffcb207d140 RCX: 00007fd7c54391d7
[    2.552995] RDX: 0000000000000000 RSI: 00007ffcb207ca80 RDI: 0000000000000005
[    2.553075] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078
[    2.553154] R10: 00007fd7c5335f60 R11: 0000000000000246 R12: 0000000000000001
[    2.553228] R13: 00000000690deae1 R14: 0000000000499600 R15: 0000000000000000
[    2.553309]  </TASK>
[    2.553336] ---[ end trace 0000000000000000 ]---
[    2.554008] ip (277) used greatest stack depth: 11744 bytes left