[    3.453714] ------------[ cut here ]------------
[    3.453787] refcount_t: underflow; use-after-free.
[    3.453844] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    3.453923] Modules linked in:
[    3.453961] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    3.454034] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.454084] Workqueue: netns cleanup_net
[    3.454127] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    3.454174] Code: 9e 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 9e 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
[    3.454329] RSP: 0000:ffffaabcc0067d50 EFLAGS: 00010286
[    3.454371] RAX: 0000000000000000 RBX: ffffaabcc0067d60 RCX: 00000000ffffdfff
[    3.454435] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    3.454497] RBP: ffffaabcc0067858 R08: ffffffff9e95ba28 R09: 00000000ffffdfff
[    3.454556] R10: ffffffff9e87ba40 R11: ffffffff9e92ba40 R12: dead000000000122
[    3.454632] R13: 00000000fffb791e R14: 0000000000000001 R15: ffff962e43e2a000
[    3.454701] FS:  0000000000000000(0000) GS:ffff962edfb91000(0000) knlGS:0000000000000000
[    3.454765] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.454826] CR2: 00007feec1df19c0 CR3: 0000000005db1003 CR4: 0000000000772ef0
[    3.454886] PKRU: 55555554
[    3.454906] Call Trace:
[    3.454928]  <TASK>
[    3.454953]  netdev_run_todo+0x21a/0x550
[    3.454992]  ops_undo_list+0x1e3/0x1f0
[    3.455028]  cleanup_net+0x1b7/0x300
[    3.455071]  process_one_work+0x162/0x380
[    3.455113]  worker_thread+0x299/0x3c0
[    3.455148]  ? rescuer_thread+0x4c0/0x4c0
[    3.455183]  kthread+0x101/0x1f0
[    3.455221]  ? kthreads_online_cpu+0x110/0x110
[    3.455265]  ? kthreads_online_cpu+0x110/0x110
[    3.455320]  ret_from_fork+0x11c/0x140
[    3.455364]  ? kthreads_online_cpu+0x110/0x110
[    3.455411]  ret_from_fork_asm+0x11/0x20
[    3.455453]  </TASK>
[    3.455478] ---[ end trace 0000000000000000 ]---
[    8.205117] GACT probability NOT on
[    8.206202] tc (424) used greatest stack depth: 11840 bytes left