[    2.159272] ip (249) used greatest stack depth: 12392 bytes left
[    2.344421] ip (261) used greatest stack depth: 12312 bytes left
[    2.679300] ip (285) used greatest stack depth: 12168 bytes left
[   34.248680] ------------[ cut here ]------------
[   34.248824] refcount_t: underflow; use-after-free.
[   34.248908] WARNING: CPU: 2 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   34.249007] Modules linked in: xt_mark nft_compat nf_tables
[   34.249079] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   34.249175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.249246] Workqueue: netns cleanup_net
[   34.249313] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   34.249377] Code: 8d 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 72 8d 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
[   34.249523] RSP: 0018:ffffacf240067d50 EFLAGS: 00010286
[   34.249601] RAX: 0000000000000000 RBX: ffffacf240067d60 RCX: 00000000ffffdfff
[   34.249689] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   34.249775] RBP: ffffacf240067878 R08: ffffffff8db5ca28 R09: 00000000ffffdfff
[   34.249857] R10: ffffffff8da7ca40 R11: ffffffff8db2ca40 R12: dead000000000122
[   34.249939] R13: 00000000fffbf167 R14: 0000000000000001 R15: ffff9327c4b7a000
[   34.250023] FS:  0000000000000000(0000) GS:ffff932870ac0000(0000) knlGS:0000000000000000
[   34.250116] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.250212] CR2: 00007f5855ca6d40 CR3: 0000000004b09003 CR4: 0000000000772ef0
[   34.250324] PKRU: 55555554
[   34.250375] Call Trace:
[   34.250426]  <TASK>
[   34.250473]  netdev_run_todo+0x21a/0x550
[   34.250549]  ops_undo_list+0x1e3/0x1f0
[   34.250613]  cleanup_net+0x1b7/0x2b0
[   34.250687]  process_one_work+0x162/0x380
[   34.250745]  worker_thread+0x299/0x3c0
[   34.250810]  ? rescuer_thread+0x4c0/0x4c0
[   34.250868]  kthread+0x101/0x1f0
[   34.250925]  ? kthreads_online_cpu+0x110/0x110
[   34.250992]  ? kthreads_online_cpu+0x110/0x110
[   34.251065]  ret_from_fork+0x11c/0x140
[   34.251124]  ? kthreads_online_cpu+0x110/0x110
[   34.251200]  ret_from_fork_asm+0x11/0x20
[   34.251262]  </TASK>
[   34.251318] ---[ end trace 0000000000000000 ]---