[    2.221084] ip (247) used greatest stack depth: 12344 bytes left
[    2.270866] ip (256) used greatest stack depth: 12328 bytes left
[   26.241485] ------------[ cut here ]------------
[   26.241568] refcount_t: underflow; use-after-free.
[   26.241663] WARNING: CPU: 3 PID: 2831 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   26.241768] Modules linked in: vrf veth
[   26.241811] CPU: 3 UID: 0 PID: 2831 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   26.241910] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.241977] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   26.242030] Code: a3 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 31 a3 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
[   26.242190] RSP: 0018:ffffb1c3c252f730 EFLAGS: 00010282
[   26.242230] RAX: 0000000000000000 RBX: ffffb1c3c252f740 RCX: 00000000ffffdfff
[   26.242297] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   26.242371] RBP: ffffb1c3c252f248 R08: ffffffffa3756a28 R09: 00000000ffffdfff
[   26.242455] R10: ffffffffa3676a40 R11: ffffffffa3726a40 R12: dead000000000122
[   26.242529] R13: 00000000fffbd21e R14: 0000000000000001 R15: ffff9b9844961000
[   26.242596] FS:  00007fc10fee1800(0000) GS:ffff9b98daf59000(0000) knlGS:0000000000000000
[   26.242684] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.242749] CR2: 00000000004e73e0 CR3: 000000000343a006 CR4: 0000000000772ef0
[   26.242820] PKRU: 55555554
[   26.242842] Call Trace:
[   26.242870]  <TASK>
[   26.242898]  netdev_run_todo+0x21a/0x550
[   26.242950]  rtnl_dellink+0x15b/0x350
[   26.243007]  ? virtio_fs_enqueue_req+0x352/0x570
[   26.243064]  ? netdev_run_todo+0x63/0x550
[   26.243097]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[   26.243150]  rtnetlink_rcv_msg+0x358/0x400
[   26.243189]  ? get_page_from_freelist+0x15b4/0x1770
[   26.243238]  ? rtnl_calcit.isra.0+0x110/0x110
[   26.243284]  netlink_rcv_skb+0x57/0x100
[   26.243331]  netlink_unicast+0x252/0x380
[   26.243374]  ? __alloc_skb+0xdb/0x190
[   26.243412]  netlink_sendmsg+0x1be/0x3e0
[   26.243462]  ____sys_sendmsg+0x132/0x260
[   26.243503]  ? copy_msghdr_from_user+0x6c/0xa0
[   26.243570]  ___sys_sendmsg+0x87/0xd0
[   26.243612]  ? do_wp_page+0x369/0xe90
[   26.243664]  ? nfulnl_rcv_nl_event+0x36/0xa0
[   26.243721]  ? fsnotify_grab_connector+0x48/0x80
[   26.243777]  ? fsnotify_destroy_marks+0x29/0x150
[   26.243823]  __sys_sendmsg+0x71/0xd0
[   26.243873]  do_syscall_64+0xa4/0xfd0
[   26.243927]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   26.243993] RIP: 0033:0x7fc1100af1d7
[   26.244041] 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
[   26.244209] RSP: 002b:00007ffc2281e468 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.244286] RAX: ffffffffffffffda RBX: 00007ffc2281eb90 RCX: 00007fc1100af1d7
[   26.244356] RDX: 0000000000000000 RSI: 00007ffc2281e4d0 RDI: 0000000000000005
[   26.244424] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   26.244495] R10: 00007fc10ffabf60 R11: 0000000000000246 R12: 0000000000000002
[   26.244580] R13: 00000000690de70b R14: 0000000000499600 R15: 0000000000000000
[   26.244666]  </TASK>
[   26.244689] ---[ end trace 0000000000000000 ]---
[   26.245343] ip (2831) used greatest stack depth: 11744 bytes left