[  171.395041] ------------[ cut here ]------------
[  171.395248] refcount_t: underflow; use-after-free.
[  171.395356] WARNING: CPU: 2 PID: 17204 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[  171.395475] Modules linked in: vrf veth
[  171.395547] CPU: 2 UID: 0 PID: 17204 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[  171.395671] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  171.395761] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[  171.395840] 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 f1 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
[  171.396053] RSP: 0018:ffffc0378ed9f730 EFLAGS: 00010282
[  171.396136] RAX: 0000000000000000 RBX: ffffc0378ed9f740 RCX: 00000000ffffdfff
[  171.396238] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[  171.396341] RBP: ffffc0378ed9f248 R08: ffffffffa9356a28 R09: 00000000ffffdfff
[  171.396442] R10: ffffffffa9276a40 R11: ffffffffa9326a40 R12: dead000000000122
[  171.396542] R13: 00000000fffe0922 R14: 0000000000000001 R15: ffff9fd18578e000
[  171.396644] FS:  00007fd10116b800(0000) GS:ffff9fd2132d9000(0000) knlGS:0000000000000000
[  171.396748] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  171.396837] CR2: 00000000004e73f0 CR3: 0000000009398004 CR4: 0000000000772ef0
[  171.396939] PKRU: 55555554
[  171.397001] Call Trace:
[  171.397065]  <TASK>
[  171.397119]  netdev_run_todo+0x21a/0x550
[  171.397199]  rtnl_dellink+0x15b/0x350
[  171.397274]  ? virtio_fs_enqueue_req+0x352/0x570
[  171.397356]  ? netdev_run_todo+0x63/0x550
[  171.397424]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[  171.397502]  rtnetlink_rcv_msg+0x358/0x400
[  171.397569]  ? get_page_from_freelist+0x15b4/0x1770
[  171.397651]  ? rtnl_calcit.isra.0+0x110/0x110
[  171.397729]  netlink_rcv_skb+0x57/0x100
[  171.397808]  netlink_unicast+0x252/0x380
[  171.397875]  ? __alloc_skb+0xdb/0x190
[  171.397944]  netlink_sendmsg+0x1be/0x3e0
[  171.398019]  ____sys_sendmsg+0x132/0x260
[  171.398090]  ? copy_msghdr_from_user+0x6c/0xa0
[  171.398170]  ___sys_sendmsg+0x87/0xd0
[  171.398238]  ? do_wp_page+0x369/0xe90
[  171.398310]  ? nfulnl_rcv_nl_event+0x36/0xa0
[  171.398393]  ? fsnotify_grab_connector+0x48/0x80
[  171.398474]  ? fsnotify_destroy_marks+0x29/0x150
[  171.398557]  __sys_sendmsg+0x71/0xd0
[  171.398627]  do_syscall_64+0xa4/0xfd0
[  171.398701]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  171.398786] RIP: 0033:0x7fd1013391d7
[  171.398855] 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
[  171.399055] RSP: 002b:00007ffc2919d888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  171.399158] RAX: ffffffffffffffda RBX: 00007ffc2919dfb0 RCX: 00007fd1013391d7
[  171.399258] RDX: 0000000000000000 RSI: 00007ffc2919d8f0 RDI: 0000000000000005
[  171.399360] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[  171.399461] R10: 00007fd101235f60 R11: 0000000000000246 R12: 0000000000000002
[  171.399560] R13: 00000000690deb2a R14: 0000000000499600 R15: 0000000000000000
[  171.399662]  </TASK>
[  171.399715] ---[ end trace 0000000000000000 ]---
[  171.400463] ip (17204) used greatest stack depth: 11744 bytes left