[    2.190549] ip (259) used greatest stack depth: 12136 bytes left
[    2.526103] eth0: renamed from tmp
[    2.731241] Initializing XFRM netlink socket
[    3.506357] IPsec XFRM device driver
[    3.861899] ------------[ cut here ]------------
[    3.862050] refcount_t: underflow; use-after-free.
[    3.862129] WARNING: CPU: 2 PID: 395 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    3.862220] Modules linked in: xfrm_interface xfrm_user
[    3.862285] CPU: 2 UID: 0 PID: 395 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    3.862368] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.862436] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    3.862498] Code: a6 e8 e8 54 ba ff 90 0f 0b 90 90 c3 80 3d 00 e6 2b 01 00 75 89 c6 05 f7 e5 2b 01 01 90 48 c7 c7 f8 48 d5 a6 e8 c5 54 ba ff 90 <0f> 0b 90 90 c3 80 3d db e5 2b 01 00 0f 85 62 ff ff ff c6 05 ce e5
[    3.862633] RSP: 0018:ffffc2004037b730 EFLAGS: 00010282
[    3.862693] RAX: 0000000000000000 RBX: ffffc2004037b740 RCX: 00000000ffffdfff
[    3.862777] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    3.862864] RBP: ffff9ec3c6550000 R08: ffffffffa755ba28 R09: 00000000ffffdfff
[    3.862938] R10: ffffffffa747ba40 R11: ffffffffa752ba40 R12: 0000000000000001
[    3.863012] R13: 00000000fffb7aaa R14: 0000000000000001 R15: ffff9ec3c6550000
[    3.863089] FS:  00007f8164ef3800(0000) GS:ffff9ec457091000(0000) knlGS:0000000000000000
[    3.863169] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.863237] CR2: 00000000004e6710 CR3: 0000000007592005 CR4: 0000000000772ef0
[    3.863314] PKRU: 55555554
[    3.863357] Call Trace:
[    3.863402]  <TASK>
[    3.863445]  netdev_run_todo+0x21a/0x550
[    3.863502]  rtnl_dellink+0x15b/0x350
[    3.863565]  ? virtio_fs_enqueue_req+0x352/0x570
[    3.863629]  ? netdev_run_todo+0x63/0x550
[    3.863683]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[    3.863750]  rtnetlink_rcv_msg+0x358/0x400
[    3.863814]  ? get_page_from_freelist+0x15b4/0x1770
[    3.863885]  ? rtnl_calcit.isra.0+0x110/0x110
[    3.863947]  netlink_rcv_skb+0x57/0x100
[    3.864004]  netlink_unicast+0x252/0x380
[    3.864059]  ? __alloc_skb+0xdb/0x190
[    3.864114]  netlink_sendmsg+0x1be/0x3e0
[    3.864170]  ____sys_sendmsg+0x132/0x260
[    3.864226]  ? copy_msghdr_from_user+0x6c/0xa0
[    3.864288]  ___sys_sendmsg+0x87/0xd0
[    3.864342]  ? do_wp_page+0x369/0xe90
[    3.864396]  ? ___pte_offset_map+0x1b/0xd0
[    3.864452]  ? nfulnl_rcv_nl_event+0x36/0xa0
[    3.864517]  ? fsnotify_grab_connector+0x48/0x80
[    3.864581]  ? fsnotify_destroy_marks+0x29/0x150
[    3.864643]  __sys_sendmsg+0x71/0xd0
[    3.864698]  do_syscall_64+0xa4/0xfd0
[    3.864766]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    3.864828] RIP: 0033:0x7f81650c11d7
[    3.864905] 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
[    3.865044] RSP: 002b:00007ffd29911a78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    3.865121] RAX: ffffffffffffffda RBX: 00007ffd299121b0 RCX: 00007f81650c11d7
[    3.865196] RDX: 0000000000000000 RSI: 00007ffd29911ae0 RDI: 0000000000000005
[    3.865271] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078
[    3.865347] R10: 00007f8164fbd510 R11: 0000000000000246 R12: 0000000000000001
[    3.865424] R13: 00000000690dea87 R14: 0000000000499600 R15: 0000000000000000
[    3.865501]  </TASK>
[    3.865546] ---[ end trace 0000000000000000 ]---
[    3.866262] ip (395) used greatest stack depth: 11744 bytes left