[    2.181921] ip (266) used greatest stack depth: 12136 bytes left
[   64.969477] ------------[ cut here ]------------
[   64.969560] refcount_t: underflow; use-after-free.
[   64.969637] WARNING: CPU: 0 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   64.969728] Modules linked in:
[   64.969766] CPU: 0 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   64.969866] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.969932] Workqueue: netns cleanup_net
[   64.969970] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   64.970020] Code: 84 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 84 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
[   64.970171] RSP: 0018:ffffb6d2c0257d50 EFLAGS: 00010286
[   64.970209] RAX: 0000000000000000 RBX: ffffb6d2c0257d60 RCX: 00000000ffffdfff
[   64.970263] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   64.970340] RBP: ffffb6d2c0257858 R08: ffffffff8555ba28 R09: 00000000ffffdfff
[   64.970401] R10: ffffffff8547ba40 R11: ffffffff8552ba40 R12: dead000000000122
[   64.970459] R13: 00000000fffc696a R14: 0000000000000001 R15: ffff99adc64da000
[   64.970516] FS:  0000000000000000(0000) GS:ffff99ae78f91000(0000) knlGS:0000000000000000
[   64.970569] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.970628] CR2: 000055db25b9adec CR3: 0000000002ed4003 CR4: 0000000000772ef0
[   64.970685] PKRU: 55555554
[   64.970713] Call Trace:
[   64.970733]  <TASK>
[   64.970766]  netdev_run_todo+0x21a/0x550
[   64.970802]  ops_undo_list+0x1e3/0x1f0
[   64.970836]  cleanup_net+0x1b7/0x300
[   64.970872]  process_one_work+0x162/0x380
[   64.970922]  worker_thread+0x299/0x3c0
[   64.970953]  ? rescuer_thread+0x4c0/0x4c0
[   64.970984]  kthread+0x101/0x1f0
[   64.971029]  ? kthreads_online_cpu+0x110/0x110
[   64.971076]  ? kthreads_online_cpu+0x110/0x110
[   64.971114]  ret_from_fork+0x11c/0x140
[   64.971146]  ? kthreads_online_cpu+0x110/0x110
[   64.971184]  ret_from_fork_asm+0x11/0x20
[   64.971217]  </TASK>
[   64.971238] ---[ end trace 0000000000000000 ]---