[    2.631275] ------------[ cut here ]------------
[    2.631339] refcount_t: underflow; use-after-free.
[    2.631391] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    2.631455] Modules linked in: nft_compat nf_tables
[    2.631505] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    2.631568] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.631613] Workqueue: netns cleanup_net
[    2.631650] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    2.631691] Code: 8b 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 8b 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
[    2.631829] RSP: 0018:ffffb73340067d50 EFLAGS: 00010286
[    2.631868] RAX: 0000000000000000 RBX: ffffb73340067d60 RCX: 00000000ffffdfff
[    2.631919] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    2.631968] RBP: ffffb73340067858 R08: ffffffff8bd5ba28 R09: 00000000ffffdfff
[    2.632019] R10: ffffffff8bc7ba40 R11: ffffffff8bd2ba40 R12: dead000000000122
[    2.632078] R13: 00000000fffb75de R14: 0000000000000001 R15: ffff93ad068bf000
[    2.632130] FS:  0000000000000000(0000) GS:ffff93adb2791000(0000) knlGS:0000000000000000
[    2.632186] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.632241] CR2: 00007f90491b4000 CR3: 000000003bc46006 CR4: 0000000000772ef0
[    2.632295] PKRU: 55555554
[    2.632316] Call Trace:
[    2.632334]  <TASK>
[    2.632356]  netdev_run_todo+0x21a/0x550
[    2.632390]  ops_undo_list+0x1e3/0x1f0
[    2.632420]  cleanup_net+0x1b7/0x300
[    2.632452]  process_one_work+0x162/0x380
[    2.632490]  worker_thread+0x299/0x3c0
[    2.632525]  ? rescuer_thread+0x4c0/0x4c0
[    2.632557]  kthread+0x101/0x1f0
[    2.632589]  ? kthreads_online_cpu+0x110/0x110
[    2.632629]  ? kthreads_online_cpu+0x110/0x110
[    2.632669]  ret_from_fork+0x11c/0x140
[    2.632700]  ? kthreads_online_cpu+0x110/0x110
[    2.632740]  ret_from_fork_asm+0x11/0x20
[    2.632771]  </TASK>
[    2.632788] ---[ end trace 0000000000000000 ]---
[   20.741943] udpgso_bench_tx (811) used greatest stack depth: 12104 bytes left