[   18.345586] ------------[ cut here ]------------
[   18.345710] refcount_t: underflow; use-after-free.
[   18.345792] WARNING: CPU: 3 PID: 615 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   18.345891] Modules linked in: vrf veth
[   18.345940] CPU: 3 UID: 0 PID: 615 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   18.346040] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.346104] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   18.346155] Code: 90 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 90 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
[   18.346333] RSP: 0018:ffffa7fc00b5f730 EFLAGS: 00010282
[   18.346390] RAX: 0000000000000000 RBX: ffffa7fc00b5f740 RCX: 00000000ffffdfff
[   18.346466] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   18.346541] RBP: ffffa7fc00b5f248 R08: ffffffff91356a28 R09: 00000000ffffdfff
[   18.346631] R10: ffffffff91276a40 R11: ffffffff91326a40 R12: dead000000000122
[   18.346708] R13: 00000000fffbb349 R14: 0000000000000001 R15: ffff8a3284a56000
[   18.346786] FS:  00007f4dc1d1c800(0000) GS:ffff8a332d359000(0000) knlGS:0000000000000000
[   18.346874] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.346943] CR2: 00000000004e5ea0 CR3: 000000000757b001 CR4: 0000000000772ef0
[   18.347021] PKRU: 55555554
[   18.347045] Call Trace:
[   18.347079]  <TASK>
[   18.347110]  netdev_run_todo+0x21a/0x550
[   18.347172]  rtnl_dellink+0x15b/0x350
[   18.347226]  ? virtio_fs_enqueue_req+0x352/0x570
[   18.347294]  ? netdev_run_todo+0x63/0x550
[   18.347340]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[   18.347398]  rtnetlink_rcv_msg+0x358/0x400
[   18.347443]  ? get_page_from_freelist+0x15b4/0x1770
[   18.347509]  ? rtnl_calcit.isra.0+0x110/0x110
[   18.347570]  netlink_rcv_skb+0x57/0x100
[   18.347625]  netlink_unicast+0x252/0x380
[   18.347667]  ? __alloc_skb+0xdb/0x190
[   18.347711]  netlink_sendmsg+0x1be/0x3e0
[   18.347749]  ____sys_sendmsg+0x132/0x260
[   18.347802]  ? copy_msghdr_from_user+0x6c/0xa0
[   18.347862]  ___sys_sendmsg+0x87/0xd0
[   18.347908]  ? do_wp_page+0x369/0xe90
[   18.347957]  ? ___pte_offset_map+0x1b/0xd0
[   18.347995]  ? nfulnl_rcv_nl_event+0x36/0xa0
[   18.348054]  ? fsnotify_grab_connector+0x48/0x80
[   18.348117]  ? fsnotify_destroy_marks+0x29/0x150
[   18.348173]  __sys_sendmsg+0x71/0xd0
[   18.348219]  do_syscall_64+0xa4/0xfd0
[   18.348268]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   18.348328] RIP: 0033:0x7f4dc1eea1d7
[   18.348370] 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
[   18.348558] RSP: 002b:00007ffc405680f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.348643] RAX: ffffffffffffffda RBX: 00007ffc40568820 RCX: 00007f4dc1eea1d7
[   18.348730] RDX: 0000000000000000 RSI: 00007ffc40568160 RDI: 0000000000000005
[   18.348803] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   18.348876] R10: 00007f4dc1de6f60 R11: 0000000000000246 R12: 0000000000000002
[   18.348953] R13: 00000000690de76d R14: 0000000000499600 R15: 0000000000000000
[   18.349030]  </TASK>
[   18.349053] ---[ end trace 0000000000000000 ]---
[   18.349645] ip (615) used greatest stack depth: 11744 bytes left