[    2.980654] ------------[ cut here ]------------
[    2.980770] refcount_t: underflow; use-after-free.
[    2.980841] WARNING: CPU: 2 PID: 273 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    2.980919] Modules linked in:
[    2.980968] CPU: 2 UID: 0 PID: 273 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    2.981047] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.981109] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    2.981165] Code: ad 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 f5 ad 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
[    2.981295] RSP: 0018:ffffb87f00657730 EFLAGS: 00010282
[    2.981350] RAX: 0000000000000000 RBX: ffffb87f00657740 RCX: 00000000ffffdfff
[    2.981426] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    2.981495] RBP: ffffb87f00657238 R08: ffffffffae75ba28 R09: 00000000ffffdfff
[    2.981566] R10: ffffffffae67ba40 R11: ffffffffae72ba40 R12: dead000000000122
[    2.981645] R13: 00000000fffb7748 R14: 0000000000000001 R15: ffff8d0402ccc000
[    2.981716] FS:  00007f16089a5800(0000) GS:ffff8d048fe91000(0000) knlGS:0000000000000000
[    2.981787] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.981849] CR2: 00000000004e5df8 CR3: 0000000005c41005 CR4: 0000000000772ef0
[    2.981919] PKRU: 55555554
[    2.981958] Call Trace:
[    2.981999]  <TASK>
[    2.982038]  netdev_run_todo+0x21a/0x550
[    2.982091]  rtnl_dellink+0x15b/0x350
[    2.982147]  ? virtio_fs_enqueue_req+0x352/0x570
[    2.982210]  ? netdev_run_todo+0x63/0x550
[    2.982257]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[    2.982313]  rtnetlink_rcv_msg+0x358/0x400
[    2.982362]  ? get_page_from_freelist+0x15b4/0x1770
[    2.982425]  ? rtnl_calcit.isra.0+0x110/0x110
[    2.982482]  netlink_rcv_skb+0x57/0x100
[    2.982534]  netlink_unicast+0x252/0x380
[    2.982585]  ? __alloc_skb+0xdb/0x190
[    2.982640]  netlink_sendmsg+0x1be/0x3e0
[    2.982689]  ____sys_sendmsg+0x132/0x260
[    2.982739]  ? copy_msghdr_from_user+0x6c/0xa0
[    2.982794]  ___sys_sendmsg+0x87/0xd0
[    2.982842]  ? do_wp_page+0x369/0xe90
[    2.982891]  ? ___pte_offset_map+0x1b/0xd0
[    2.982940]  ? nfulnl_rcv_nl_event+0x36/0xa0
[    2.982999]  ? fsnotify_grab_connector+0x48/0x80
[    2.983058]  ? fsnotify_destroy_marks+0x29/0x150
[    2.983113]  __sys_sendmsg+0x71/0xd0
[    2.983161]  do_syscall_64+0xa4/0xfd0
[    2.983214]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.983271] RIP: 0033:0x7f1608b731d7
[    2.983319] 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
[    2.983474] RSP: 002b:00007ffed3bd2538 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    2.983569] RAX: ffffffffffffffda RBX: 00007ffed3bd2c60 RCX: 00007f1608b731d7
[    2.983667] RDX: 0000000000000000 RSI: 00007ffed3bd25a0 RDI: 0000000000000005
[    2.983758] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[    2.983850] R10: 00007f1608a6ff60 R11: 0000000000000246 R12: 0000000000000002
[    2.983942] R13: 00000000690dfd17 R14: 0000000000499600 R15: 0000000000000000
[    2.984035]  </TASK>
[    2.984082] ---[ end trace 0000000000000000 ]---
[    2.984432] ip (273) used greatest stack depth: 11744 bytes left