[    1.787530] ------------[ cut here ]------------
[    1.787623] refcount_t: underflow; use-after-free.
[    1.787673] WARNING: CPU: 0 PID: 66 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    1.787762] Modules linked in: veth
[    1.787802] CPU: 0 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    1.787901] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    1.787952] Workqueue: netns cleanup_net
[    1.787992] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    1.788034] Code: 9a e8 f8 c3 ba ff 90 0f 0b 90 90 c3 80 3d 39 c1 eb 00 00 75 89 c6 05 30 c1 eb 00 01 90 48 c7 c7 30 a0 11 9a e8 d5 c3 ba ff 90 <0f> 0b 90 90 c3 80 3d 14 c1 eb 00 00 0f 85 62 ff ff ff c6 05 07 c1
[    1.788186] RSP: 0018:ffffb9518024fd50 EFLAGS: 00010286
[    1.788223] RAX: 0000000000000000 RBX: ffffb9518024fd60 RCX: 00000000ffffdfff
[    1.788305] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    1.788366] RBP: ffffb9518024f880 R08: ffffffff9a556a28 R09: 00000000ffffdfff
[    1.788429] R10: ffffffff9a476a40 R11: ffffffff9a526a40 R12: dead000000000122
[    1.788524] R13: 00000000fffb729c R14: 0000000000000001 R15: ffff8ce082f6c000
[    1.788600] FS:  0000000000000000(0000) GS:ffff8ce123fe2000(0000) knlGS:0000000000000000
[    1.788687] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.788756] CR2: 000000002eb47688 CR3: 00000000034c9006 CR4: 0000000000772ef0
[    1.788820] PKRU: 55555554
[    1.788844] Call Trace:
[    1.788864]  <TASK>
[    1.788886]  netdev_run_todo+0x21a/0x550
[    1.788921]  ops_undo_list+0x1e3/0x1f0
[    1.788954]  cleanup_net+0x1b7/0x2b0
[    1.788981]  process_one_work+0x162/0x380
[    1.789021]  worker_thread+0x299/0x3c0
[    1.789053]  ? rescuer_thread+0x4c0/0x4c0
[    1.789087]  kthread+0x101/0x1f0
[    1.789121]  ? kthreads_online_cpu+0x110/0x110
[    1.789162]  ? kthreads_online_cpu+0x110/0x110
[    1.789204]  ret_from_fork+0x11c/0x140
[    1.789236]  ? kthreads_online_cpu+0x110/0x110
[    1.789292]  ret_from_fork_asm+0x11/0x20
[    1.789335]  </TASK>
[    1.789360] ---[ end trace 0000000000000000 ]---
[    2.002085] seq-ext_ipv6 (225) used greatest stack depth: 12488 bytes left