[    2.087752] ip (253) used greatest stack depth: 12344 bytes left
[    2.281801] bind_bhash (258) used greatest stack depth: 11960 bytes left
[    2.301743] ------------[ cut here ]------------
[    2.301869] refcount_t: underflow; use-after-free.
[    2.301969] WARNING: CPU: 2 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    2.302079] Modules linked in:
[    2.302150] CPU: 2 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    2.302283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.302375] Workqueue: netns cleanup_net
[    2.302447] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    2.302531] Code: a8 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 55 a8 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
[    2.302741] RSP: 0018:ffffa6fec0257d50 EFLAGS: 00010286
[    2.302820] RAX: 0000000000000000 RBX: ffffa6fec0257d60 RCX: 00000000ffffdfff
[    2.302923] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    2.303022] RBP: ffffa6fec0257858 R08: ffffffffa8d5ba28 R09: 00000000ffffdfff
[    2.303122] R10: ffffffffa8c7ba40 R11: ffffffffa8d2ba40 R12: dead000000000122
[    2.303224] R13: 00000000fffb7499 R14: 0000000000000001 R15: ffff89fec4d97000
[    2.303327] FS:  0000000000000000(0000) GS:ffff89ff55891000(0000) knlGS:0000000000000000
[    2.303427] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.303516] CR2: 00007fc27e9134d8 CR3: 000000003c646002 CR4: 0000000000772ef0
[    2.303621] PKRU: 55555554
[    2.303683] Call Trace:
[    2.303741]  <TASK>
[    2.303795]  netdev_run_todo+0x21a/0x550
[    2.303867]  ops_undo_list+0x1e3/0x1f0
[    2.303939]  cleanup_net+0x1b7/0x300
[    2.304007]  process_one_work+0x162/0x380
[    2.304079]  worker_thread+0x299/0x3c0
[    2.304148]  ? rescuer_thread+0x4c0/0x4c0
[    2.304217]  kthread+0x101/0x1f0
[    2.304286]  ? kthreads_online_cpu+0x110/0x110
[    2.304366]  ? kthreads_online_cpu+0x110/0x110
[    2.304448]  ret_from_fork+0x11c/0x140
[    2.304518]  ? kthreads_online_cpu+0x110/0x110
[    2.304620]  ret_from_fork_asm+0x11/0x20
[    2.304690]  </TASK>
[    2.304740] ---[ end trace 0000000000000000 ]---