[    2.299274] ip (254) used greatest stack depth: 12136 bytes left
[   20.236193] ------------[ cut here ]------------
[   20.236331] refcount_t: underflow; use-after-free.
[   20.236410] WARNING: CPU: 3 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   20.236513] Modules linked in: xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6
[   20.236636] CPU: 3 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   20.236746] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.236820] Workqueue: netns cleanup_net
[   20.236878] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   20.236945] Code: 96 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 15 96 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
[   20.237165] RSP: 0018:ffffa15580257d50 EFLAGS: 00010286
[   20.237234] RAX: 0000000000000000 RBX: ffffa15580257d60 RCX: 00000000ffffdfff
[   20.237316] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   20.237400] RBP: ffffa15580257858 R08: ffffffff9695ba28 R09: 00000000ffffdfff
[   20.237488] R10: ffffffff9687ba40 R11: ffffffff9692ba40 R12: dead000000000122
[   20.237575] R13: 00000000fffbba9d R14: 0000000000000001 R15: ffff95a7064f2000
[   20.237666] FS:  0000000000000000(0000) GS:ffff95a7a7d11000(0000) knlGS:0000000000000000
[   20.237759] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.237836] CR2: 00005577c02cd778 CR3: 0000000011046006 CR4: 0000000000772ef0
[   20.237928] PKRU: 55555554
[   20.237956] Call Trace:
[   20.237993]  <TASK>
[   20.238031]  netdev_run_todo+0x21a/0x550
[   20.238093]  ops_undo_list+0x1e3/0x1f0
[   20.238146]  cleanup_net+0x1b7/0x300
[   20.238195]  process_one_work+0x162/0x380
[   20.238247]  worker_thread+0x299/0x3c0
[   20.238291]  ? rescuer_thread+0x4c0/0x4c0
[   20.238341]  kthread+0x101/0x1f0
[   20.238396]  ? kthreads_online_cpu+0x110/0x110
[   20.238463]  ? kthreads_online_cpu+0x110/0x110
[   20.238524]  ret_from_fork+0x11c/0x140
[   20.238577]  ? kthreads_online_cpu+0x110/0x110
[   20.238644]  ret_from_fork_asm+0x11/0x20
[   20.238699]  </TASK>
[   20.238734] ---[ end trace 0000000000000000 ]---