[    3.090884] ------------[ cut here ]------------
[    3.090972] refcount_t: underflow; use-after-free.
[    3.091035] WARNING: CPU: 3 PID: 273 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    3.091122] Modules linked in:
[    3.091159] CPU: 3 UID: 0 PID: 273 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    3.091237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.091304] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    3.091360] Code: 9d 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 75 9d 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
[    3.091513] RSP: 0018:ffffaa7140667730 EFLAGS: 00010282
[    3.091560] RAX: 0000000000000000 RBX: ffffaa7140667740 RCX: 00000000ffffdfff
[    3.091635] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    3.091692] RBP: ffffaa7140667238 R08: ffffffff9df5ba28 R09: 00000000ffffdfff
[    3.091760] R10: ffffffff9de7ba40 R11: ffffffff9df2ba40 R12: dead000000000122
[    3.091829] R13: 00000000fffb77aa R14: 0000000000000001 R15: ffff8efd82dab000
[    3.091896] FS:  00007fadc71d8800(0000) GS:ffff8efe20711000(0000) knlGS:0000000000000000
[    3.091974] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.092029] CR2: 000055e0eb7460c0 CR3: 0000000004a2f001 CR4: 0000000000772ef0
[    3.092100] PKRU: 55555554
[    3.092123] Call Trace:
[    3.092152]  <TASK>
[    3.092180]  netdev_run_todo+0x21a/0x550
[    3.092224]  rtnl_dellink+0x15b/0x350
[    3.092275]  ? virtio_fs_enqueue_req+0x352/0x570
[    3.092331]  ? netdev_run_todo+0x63/0x550
[    3.092378]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[    3.092425]  rtnetlink_rcv_msg+0x358/0x400
[    3.092471]  ? get_page_from_freelist+0x15b4/0x1770
[    3.092521]  ? rtnl_calcit.isra.0+0x110/0x110
[    3.092571]  netlink_rcv_skb+0x57/0x100
[    3.092613]  netlink_unicast+0x252/0x380
[    3.092658]  ? __alloc_skb+0xdb/0x190
[    3.092698]  netlink_sendmsg+0x1be/0x3e0
[    3.092740]  ____sys_sendmsg+0x132/0x260
[    3.092780]  ? copy_msghdr_from_user+0x6c/0xa0
[    3.092839]  ___sys_sendmsg+0x87/0xd0
[    3.092882]  ? do_wp_page+0x369/0xe90
[    3.092921]  ? ___pte_offset_map+0x1b/0xd0
[    3.092965]  ? nfulnl_rcv_nl_event+0x36/0xa0
[    3.093022]  ? fsnotify_grab_connector+0x48/0x80
[    3.093081]  ? fsnotify_destroy_marks+0x29/0x150
[    3.093130]  __sys_sendmsg+0x71/0xd0
[    3.093165]  do_syscall_64+0xa4/0xfd0
[    3.093214]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    3.093270] RIP: 0033:0x7fadc73a61d7
[    3.093314] 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
[    3.093463] RSP: 002b:00007ffed69ccba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    3.093531] RAX: ffffffffffffffda RBX: 00007ffed69cd2d0 RCX: 00007fadc73a61d7
[    3.093608] RDX: 0000000000000000 RSI: 00007ffed69ccc10 RDI: 0000000000000005
[    3.093674] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[    3.093744] R10: 00007fadc72a2f60 R11: 0000000000000246 R12: 0000000000000002
[    3.093809] R13: 00000000690dea41 R14: 0000000000499600 R15: 0000000000000000
[    3.093883]  </TASK>
[    3.093912] ---[ end trace 0000000000000000 ]---
[    3.094971] ip (273) used greatest stack depth: 11744 bytes left