[   19.103254] Initializing XFRM netlink socket
[   24.288895] ------------[ cut here ]------------
[   24.289057] refcount_t: underflow; use-after-free.
[   24.289181] WARNING: CPU: 2 PID: 435 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   24.289276] Modules linked in: xfrm_user vrf veth
[   24.289361] CPU: 2 UID: 0 PID: 435 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   24.289476] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.289553] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   24.289634] Code: ba 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 11 ba 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
[   24.289805] RSP: 0018:ffffb0d7002eb730 EFLAGS: 00010282
[   24.289925] RAX: 0000000000000000 RBX: ffffb0d7002eb740 RCX: 00000000ffffdfff
[   24.290040] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   24.290130] RBP: ffffb0d7002eb248 R08: ffffffffba556a28 R09: 00000000ffffdfff
[   24.290227] R10: ffffffffba476a40 R11: ffffffffba526a40 R12: dead000000000122
[   24.290318] R13: 00000000fffbca85 R14: 0000000000000001 R15: ffff9bb903099000
[   24.290490] FS:  00007fe6497fb800(0000) GS:ffff9bb9840d9000(0000) knlGS:0000000000000000
[   24.290581] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.290662] CR2: 00000000004e73c8 CR3: 000000000315f003 CR4: 0000000000772ef0
[   24.290753] PKRU: 55555554
[   24.290805] Call Trace:
[   24.290866]  <TASK>
[   24.290990]  netdev_run_todo+0x21a/0x550
[   24.291066]  rtnl_dellink+0x15b/0x350
[   24.291134]  ? virtio_fs_enqueue_req+0x352/0x570
[   24.291203]  ? netdev_run_todo+0x63/0x550
[   24.291266]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[   24.291328]  rtnetlink_rcv_msg+0x358/0x400
[   24.291393]  ? get_page_from_freelist+0x15b4/0x1770
[   24.291474]  ? rtnl_calcit.isra.0+0x110/0x110
[   24.291540]  netlink_rcv_skb+0x57/0x100
[   24.291608]  netlink_unicast+0x252/0x380
[   24.291662]  ? __alloc_skb+0xdb/0x190
[   24.291718]  netlink_sendmsg+0x1be/0x3e0
[   24.291779]  ____sys_sendmsg+0x132/0x260
[   24.291839]  ? copy_msghdr_from_user+0x6c/0xa0
[   24.291919]  ___sys_sendmsg+0x87/0xd0
[   24.291976]  ? do_wp_page+0x369/0xe90
[   24.292081]  ? nfulnl_rcv_nl_event+0x36/0xa0
[   24.292150]  ? fsnotify_grab_connector+0x48/0x80
[   24.292222]  ? fsnotify_destroy_marks+0x29/0x150
[   24.292285]  __sys_sendmsg+0x71/0xd0
[   24.292355]  do_syscall_64+0xa4/0xfd0
[   24.292421]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   24.292495] RIP: 0033:0x7fe6499c91d7
[   24.292556] 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
[   24.292719] RSP: 002b:00007ffc9e647e18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.292806] RAX: ffffffffffffffda RBX: 00007ffc9e648540 RCX: 00007fe6499c91d7
[   24.292908] RDX: 0000000000000000 RSI: 00007ffc9e647e80 RDI: 0000000000000005
[   24.293001] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   24.293085] R10: 00007fe6498c5f60 R11: 0000000000000246 R12: 0000000000000002
[   24.293162] R13: 00000000690ded3b R14: 0000000000499600 R15: 0000000000000000
[   24.293255]  </TASK>
[   24.293303] ---[ end trace 0000000000000000 ]---
[   24.293973] ip (435) used greatest stack depth: 11744 bytes left