[    2.086785] ip (248) used greatest stack depth: 12408 bytes left
[    2.133485] ip (255) used greatest stack depth: 12344 bytes left
[    2.179798] ip (261) used greatest stack depth: 12328 bytes left
[  114.795796] ------------[ cut here ]------------
[  114.795905] refcount_t: underflow; use-after-free.
[  114.795999] WARNING: CPU: 3 PID: 1736 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[  114.796117] Modules linked in: vrf veth
[  114.796165] CPU: 3 UID: 0 PID: 1736 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[  114.796262] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  114.796328] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[  114.796381] Code: af 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 71 af 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
[  114.796563] RSP: 0018:ffffc00a8138f730 EFLAGS: 00010282
[  114.796609] RAX: 0000000000000000 RBX: ffffc00a8138f740 RCX: 00000000ffffdfff
[  114.796688] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[  114.796772] RBP: ffffc00a8138f248 R08: ffffffffafb56a28 R09: 00000000ffffdfff
[  114.796853] R10: ffffffffafa76a40 R11: ffffffffafb26a40 R12: dead000000000122
[  114.796935] R13: 00000000fffd2bf7 R14: 0000000000000001 R15: ffff9c0283326000
[  114.797017] FS:  00007f2bbfe04800(0000) GS:ffff9c030eb59000(0000) knlGS:0000000000000000
[  114.797098] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  114.797169] CR2: 0000557c10c25b48 CR3: 0000000006daa001 CR4: 0000000000772ef0
[  114.797248] PKRU: 55555554
[  114.797273] Call Trace:
[  114.797300]  <TASK>
[  114.797324]  netdev_run_todo+0x21a/0x550
[  114.797374]  rtnl_dellink+0x15b/0x350
[  114.797423]  ? virtio_fs_enqueue_req+0x352/0x570
[  114.797488]  ? netdev_run_todo+0x63/0x550
[  114.797527]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[  114.797579]  rtnetlink_rcv_msg+0x358/0x400
[  114.797618]  ? get_page_from_freelist+0x15b4/0x1770
[  114.797680]  ? rtnl_calcit.isra.0+0x110/0x110
[  114.797732]  netlink_rcv_skb+0x57/0x100
[  114.797784]  netlink_unicast+0x252/0x380
[  114.797823]  ? __alloc_skb+0xdb/0x190
[  114.797863]  netlink_sendmsg+0x1be/0x3e0
[  114.797901]  ____sys_sendmsg+0x132/0x260
[  114.797948]  ? copy_msghdr_from_user+0x6c/0xa0
[  114.797999]  ___sys_sendmsg+0x87/0xd0
[  114.798037]  ? do_wp_page+0x369/0xe90
[  114.798083]  ? ___pte_offset_map+0x1b/0xd0
[  114.798128]  ? nfulnl_rcv_nl_event+0x36/0xa0
[  114.798182]  ? fsnotify_grab_connector+0x48/0x80
[  114.798237]  ? fsnotify_destroy_marks+0x29/0x150
[  114.798286]  __sys_sendmsg+0x71/0xd0
[  114.798331]  do_syscall_64+0xa4/0xfd0
[  114.798376]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  114.798431] RIP: 0033:0x7f2bbffd21d7
[  114.798474] 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
[  114.798650] RSP: 002b:00007ffe2acbfca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  114.798726] RAX: ffffffffffffffda RBX: 00007ffe2acc03d0 RCX: 00007f2bbffd21d7
[  114.798804] RDX: 0000000000000000 RSI: 00007ffe2acbfd10 RDI: 0000000000000005
[  114.798882] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[  114.798961] R10: 00007f2bbfecef60 R11: 0000000000000246 R12: 0000000000000002
[  114.799033] R13: 00000000690deb62 R14: 0000000000499600 R15: 0000000000000000
[  114.799114]  </TASK>
[  114.799140] ---[ end trace 0000000000000000 ]---
[  114.799727] ip (1736) used greatest stack depth: 11744 bytes left