[    2.107336] ip (249) used greatest stack depth: 12392 bytes left
[    2.178599] ip (254) used greatest stack depth: 12152 bytes left
[   34.244054] ------------[ cut here ]------------
[   34.244113] refcount_t: underflow; use-after-free.
[   34.244174] WARNING: CPU: 0 PID: 66 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   34.244258] Modules linked in: xt_mark nft_compat nf_tables
[   34.244318] CPU: 0 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   34.244402] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.244468] Workqueue: netns cleanup_net
[   34.244515] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   34.244556] Code: b6 e8 48 df ba ff 90 0f 0b 90 90 c3 80 3d c9 50 ec 00 00 75 89 c6 05 c0 50 ec 00 01 90 48 c7 c7 c8 4a 12 b6 e8 25 df ba ff 90 <0f> 0b 90 90 c3 80 3d a4 50 ec 00 00 0f 85 62 ff ff ff c6 05 97 50
[   34.244681] RSP: 0000:ffff9be48024fd50 EFLAGS: 00010286
[   34.244731] RAX: 0000000000000000 RBX: ffff9be48024fd60 RCX: 00000000ffffdfff
[   34.244794] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   34.244865] RBP: ffff9be48024f878 R08: ffffffffb655ca28 R09: 00000000ffffdfff
[   34.244921] R10: ffffffffb647ca40 R11: ffffffffb652ca40 R12: dead000000000122
[   34.244983] R13: 00000000fffbf162 R14: 0000000000000001 R15: ffff8c69053ea000
[   34.245047] FS:  0000000000000000(0000) GS:ffff8c6987fc0000(0000) knlGS:0000000000000000
[   34.245106] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.245163] CR2: 00007fd924e059c0 CR3: 0000000002f98001 CR4: 0000000000772ef0
[   34.245238] PKRU: 55555554
[   34.245261] Call Trace:
[   34.245280]  <TASK>
[   34.245304]  netdev_run_todo+0x21a/0x550
[   34.245343]  ops_undo_list+0x1e3/0x1f0
[   34.245380]  cleanup_net+0x1b7/0x2b0
[   34.245414]  process_one_work+0x162/0x380
[   34.245448]  worker_thread+0x299/0x3c0
[   34.245483]  ? rescuer_thread+0x4c0/0x4c0
[   34.245515]  kthread+0x101/0x1f0
[   34.245547]  ? kthreads_online_cpu+0x110/0x110
[   34.245589]  ? kthreads_online_cpu+0x110/0x110
[   34.245631]  ret_from_fork+0x11c/0x140
[   34.245678]  ? kthreads_online_cpu+0x110/0x110
[   34.245764]  ret_from_fork_asm+0x11/0x20
[   34.245811]  </TASK>
[   34.245829] ---[ end trace 0000000000000000 ]---