[    2.195992] ip (260) used greatest stack depth: 12136 bytes left
[    5.875598] ------------[ cut here ]------------
[    5.875668] refcount_t: underflow; use-after-free.
[    5.875724] WARNING: CPU: 0 PID: 805 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    5.875796] Modules linked in:
[    5.875832] CPU: 0 UID: 0 PID: 805 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    5.875914] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    5.875972] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    5.876014] Code: 90 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 90 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
[    5.876142] RSP: 0018:ffff9bffc0faf730 EFLAGS: 00010282
[    5.876181] RAX: 0000000000000000 RBX: ffff9bffc0faf740 RCX: 00000000ffffdfff
[    5.876242] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    5.876298] RBP: ffff9bffc0faf238 R08: ffffffff9135ba28 R09: 00000000ffffdfff
[    5.876361] R10: ffffffff9127ba40 R11: ffffffff9132ba40 R12: dead000000000122
[    5.876417] R13: 00000000fffb828e R14: 0000000000000001 R15: ffff88c381137000
[    5.876479] FS:  00007f1b7a056800(0000) GS:ffff88c42e191000(0000) knlGS:0000000000000000
[    5.876554] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.876612] CR2: 00000000004e5ae0 CR3: 0000000007a04006 CR4: 0000000000772ef0
[    5.876667] PKRU: 55555554
[    5.876686] Call Trace:
[    5.876706]  <TASK>
[    5.876722]  netdev_run_todo+0x21a/0x550
[    5.876762]  rtnl_dellink+0x15b/0x350
[    5.876812]  ? virtio_fs_enqueue_req+0x352/0x570
[    5.876860]  ? netdev_run_todo+0x63/0x550
[    5.876887]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[    5.876925]  rtnetlink_rcv_msg+0x358/0x400
[    5.876959]  ? get_page_from_freelist+0x15b4/0x1770
[    5.877001]  ? rtnl_calcit.isra.0+0x110/0x110
[    5.877043]  netlink_rcv_skb+0x57/0x100
[    5.877093]  netlink_unicast+0x252/0x380
[    5.877125]  ? __alloc_skb+0xdb/0x190
[    5.877160]  netlink_sendmsg+0x1be/0x3e0
[    5.877203]  ____sys_sendmsg+0x132/0x260
[    5.877235]  ? copy_msghdr_from_user+0x6c/0xa0
[    5.877271]  ___sys_sendmsg+0x87/0xd0
[    5.877304]  ? do_wp_page+0x369/0xe90
[    5.877337]  ? ___pte_offset_map+0x1b/0xd0
[    5.877370]  ? nfulnl_rcv_nl_event+0x36/0xa0
[    5.877418]  ? fsnotify_grab_connector+0x48/0x80
[    5.877462]  ? fsnotify_destroy_marks+0x29/0x150
[    5.877511]  __sys_sendmsg+0x71/0xd0
[    5.877549]  do_syscall_64+0xa4/0xfd0
[    5.877588]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    5.877625] RIP: 0033:0x7f1b7a2241d7
[    5.877661] 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
[    5.877794] RSP: 002b:00007ffccbcb9a58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    5.877871] RAX: ffffffffffffffda RBX: 00007ffccbcba190 RCX: 00007f1b7a2241d7
[    5.877923] RDX: 0000000000000000 RSI: 00007ffccbcb9ac0 RDI: 0000000000000005
[    5.877985] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[    5.878040] R10: 00007f1b7a120510 R11: 0000000000000246 R12: 0000000000000002
[    5.878095] R13: 00000000690dfae4 R14: 0000000000499600 R15: 0000000000000000
[    5.878159]  </TASK>
[    5.878177] ---[ end trace 0000000000000000 ]---
[    5.878740] ip (805) used greatest stack depth: 11744 bytes left