[   45.068003] ------------[ cut here ]------------
[   45.068083] refcount_t: underflow; use-after-free.
[   45.068164] WARNING: CPU: 0 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   45.068243] Modules linked in: nf_conntrack_netlink nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_numgen nf_tables
[   45.068333] CPU: 0 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   45.068408] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   45.068457] Workqueue: netns cleanup_net
[   45.068510] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   45.068550] Code: ba e8 18 ed b9 ff 90 0f 0b 90 90 c3 80 3d d9 ea ea 00 00 75 89 c6 05 d0 ea ea 00 01 90 48 c7 c7 78 de d1 ba e8 f5 ec b9 ff 90 <0f> 0b 90 90 c3 80 3d b4 ea ea 00 00 0f 85 62 ff ff ff c6 05 a7 ea
[   45.068673] RSP: 0018:ffffa46500253d50 EFLAGS: 00010286
[   45.068713] RAX: 0000000000000000 RBX: ffffa46500253d60 RCX: 00000000ffffdfff
[   45.068772] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   45.068823] RBP: ffffa46500253868 R08: ffffffffbb156d28 R09: 00000000ffffdfff
[   45.068888] R10: ffffffffbb076d40 R11: ffffffffbb126d40 R12: dead000000000122
[   45.068954] R13: 00000000fffc1ba9 R14: 0000000000000001 R15: ffff92bb03771000
[   45.069015] FS:  0000000000000000(0000) GS:ffff92bb833d8000(0000) knlGS:0000000000000000
[   45.069072] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.069120] CR2: 000055e1b710bdec CR3: 000000000ad36001 CR4: 0000000000772ef0
[   45.069180] PKRU: 55555554
[   45.069203] Call Trace:
[   45.069230]  <TASK>
[   45.069254]  netdev_run_todo+0x21a/0x550
[   45.069304]  ops_undo_list+0x1e3/0x1f0
[   45.069345]  cleanup_net+0x1b7/0x2b0
[   45.069378]  process_one_work+0x162/0x380
[   45.069435]  worker_thread+0x299/0x3c0
[   45.069474]  ? rescuer_thread+0x4c0/0x4c0
[   45.069509]  kthread+0x101/0x1f0
[   45.069548]  ? kthreads_online_cpu+0x110/0x110
[   45.069593]  ? kthreads_online_cpu+0x110/0x110
[   45.069635]  ret_from_fork+0x11c/0x140
[   45.069683]  ? kthreads_online_cpu+0x110/0x110
[   45.069723]  ret_from_fork_asm+0x11/0x20
[   45.069767]  </TASK>
[   45.069790] ---[ end trace 0000000000000000 ]---