[  163.493510] ------------[ cut here ]------------
[  163.493648] refcount_t: underflow; use-after-free.
[  163.493720] WARNING: CPU: 0 PID: 1961 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[  163.493822] Modules linked in: vrf veth
[  163.493867] CPU: 0 UID: 0 PID: 1961 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[  163.493969] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  163.494031] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[  163.494086] Code: 98 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 b1 98 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
[  163.494251] RSP: 0018:ffffae82416ef730 EFLAGS: 00010282
[  163.494315] RAX: 0000000000000000 RBX: ffffae82416ef740 RCX: 00000000ffffdfff
[  163.494389] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[  163.494471] RBP: ffffae82416ef248 R08: ffffffff98f56a28 R09: 00000000ffffdfff
[  163.494550] R10: ffffffff98e76a40 R11: ffffffff98f26a40 R12: dead000000000122
[  163.494607] R13: 00000000fffdea3d R14: 0000000000000001 R15: ffff9e84055d9000
[  163.494683] FS:  00007fc984558800(0000) GS:ffff9e84a55d9000(0000) knlGS:0000000000000000
[  163.494765] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  163.494830] CR2: 00000000004e5ea0 CR3: 0000000006586005 CR4: 0000000000772ef0
[  163.494905] PKRU: 55555554
[  163.494932] Call Trace:
[  163.494957]  <TASK>
[  163.494986]  netdev_run_todo+0x21a/0x550
[  163.495046]  rtnl_dellink+0x15b/0x350
[  163.495097]  ? virtio_fs_enqueue_req+0x352/0x570
[  163.495161]  ? netdev_run_todo+0x63/0x550
[  163.495199]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[  163.495248]  rtnetlink_rcv_msg+0x358/0x400
[  163.495286]  ? get_page_from_freelist+0x15b4/0x1770
[  163.495346]  ? rtnl_calcit.isra.0+0x110/0x110
[  163.495401]  netlink_rcv_skb+0x57/0x100
[  163.495445]  netlink_unicast+0x252/0x380
[  163.495494]  ? __alloc_skb+0xdb/0x190
[  163.495543]  netlink_sendmsg+0x1be/0x3e0
[  163.495582]  ____sys_sendmsg+0x132/0x260
[  163.495622]  ? copy_msghdr_from_user+0x6c/0xa0
[  163.495675]  ___sys_sendmsg+0x87/0xd0
[  163.495718]  ? do_wp_page+0x369/0xe90
[  163.495765]  ? ___pte_offset_map+0x1b/0xd0
[  163.495806]  ? nfulnl_rcv_nl_event+0x36/0xa0
[  163.495863]  ? fsnotify_grab_connector+0x48/0x80
[  163.495933]  ? fsnotify_destroy_marks+0x29/0x150
[  163.495992]  __sys_sendmsg+0x71/0xd0
[  163.496042]  do_syscall_64+0xa4/0xfd0
[  163.496095]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  163.496157] RIP: 0033:0x7fc9847261d7
[  163.496198] 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
[  163.496361] RSP: 002b:00007ffd7b821198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  163.496437] RAX: ffffffffffffffda RBX: 00007ffd7b8218c0 RCX: 00007fc9847261d7
[  163.496512] RDX: 0000000000000000 RSI: 00007ffd7b821200 RDI: 0000000000000005
[  163.496604] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[  163.496683] R10: 00007fc984622f60 R11: 0000000000000246 R12: 0000000000000002
[  163.496749] R13: 00000000690dea18 R14: 0000000000499600 R15: 0000000000000000
[  163.496815]  </TASK>
[  163.496848] ---[ end trace 0000000000000000 ]---
[  163.497548] ip (1961) used greatest stack depth: 11744 bytes left