[    1.984316] ------------[ cut here ]------------
[    1.984532] refcount_t: underflow; use-after-free.
[    1.984607] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    1.984704] Modules linked in: veth
[    1.984752] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    1.984849] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    1.984919] Workqueue: netns cleanup_net
[    1.984985] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    1.985048] Code: 8a 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 f1 8a 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
[    1.985248] RSP: 0018:ffff9fc9c0067d50 EFLAGS: 00010286
[    1.985303] RAX: 0000000000000000 RBX: ffff9fc9c0067d60 RCX: 00000000ffffdfff
[    1.985384] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    1.985467] RBP: ffff9fc9c0067880 R08: ffffffff8b356a28 R09: 00000000ffffdfff
[    1.985546] R10: ffffffff8b276a40 R11: ffffffff8b326a40 R12: dead000000000122
[    1.985627] R13: 00000000fffb735d R14: 0000000000000001 R15: ffff903cc112c000
[    1.985709] FS:  0000000000000000(0000) GS:ffff903d731e2000(0000) knlGS:0000000000000000
[    1.985798] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.985872] CR2: 000000001ada6688 CR3: 0000000004607004 CR4: 0000000000772ef0
[    1.985968] PKRU: 55555554
[    1.986005] Call Trace:
[    1.986041]  <TASK>
[    1.986072]  netdev_run_todo+0x21a/0x550
[    1.986129]  ops_undo_list+0x1e3/0x1f0
[    1.986176]  cleanup_net+0x1b7/0x2b0
[    1.986224]  process_one_work+0x162/0x380
[    1.986281]  worker_thread+0x299/0x3c0
[    1.986327]  ? rescuer_thread+0x4c0/0x4c0
[    1.986375]  kthread+0x101/0x1f0
[    1.986424]  ? kthreads_online_cpu+0x110/0x110
[    1.986487]  ? kthreads_online_cpu+0x110/0x110
[    1.986539]  ret_from_fork+0x11c/0x140
[    1.986585]  ? kthreads_online_cpu+0x110/0x110
[    1.986637]  ret_from_fork_asm+0x11/0x20
[    1.986686]  </TASK>
[    1.986712] ---[ end trace 0000000000000000 ]---
[    2.364315] unsigned-md5_ip (226) used greatest stack depth: 12488 bytes left