[    1.624834] ip (253) used greatest stack depth: 12136 bytes left
[    1.636947] ip_local_port_range: prefer different parity for start/end values.
[    1.676979] ------------[ cut here ]------------
[    1.677038] refcount_t: underflow; use-after-free.
[    1.677095] WARNING: CPU: 3 PID: 66 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    1.677159] Modules linked in:
[    1.677191] CPU: 3 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    1.677268] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    1.677312] Workqueue: netns cleanup_net
[    1.677353] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    1.677395] Code: b3 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 f5 b3 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
[    1.677527] RSP: 0018:ffffb29f4024fd50 EFLAGS: 00010286
[    1.677563] RAX: 0000000000000000 RBX: ffffb29f4024fd60 RCX: 00000000ffffdfff
[    1.677627] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    1.677684] RBP: ffffb29f4024f858 R08: ffffffffb475ba28 R09: 00000000ffffdfff
[    1.677741] R10: ffffffffb467ba40 R11: ffffffffb472ba40 R12: dead000000000122
[    1.677802] R13: 00000000fffb722f R14: 0000000000000001 R15: ffff9a80449a7000
[    1.677864] FS:  0000000000000000(0000) GS:ffff9a80c9f11000(0000) knlGS:0000000000000000
[    1.677937] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.677996] CR2: 00007f0993c07840 CR3: 000000000c646004 CR4: 0000000000772ef0
[    1.678075] PKRU: 55555554
[    1.678092] Call Trace:
[    1.678111]  <TASK>
[    1.678128]  netdev_run_todo+0x21a/0x550
[    1.678169]  ops_undo_list+0x1e3/0x1f0
[    1.678208]  cleanup_net+0x1b7/0x300
[    1.678243]  process_one_work+0x162/0x380
[    1.678276]  worker_thread+0x299/0x3c0
[    1.678310]  ? rescuer_thread+0x4c0/0x4c0
[    1.678352]  kthread+0x101/0x1f0
[    1.678380]  ? kthreads_online_cpu+0x110/0x110
[    1.678431]  ? kthreads_online_cpu+0x110/0x110
[    1.678466]  ret_from_fork+0x11c/0x140
[    1.678499]  ? kthreads_online_cpu+0x110/0x110
[    1.678541]  ret_from_fork_asm+0x11/0x20
[    1.678576]  </TASK>
[    1.678592] ---[ end trace 0000000000000000 ]---