[    2.527903] nft (262) used greatest stack depth: 12472 bytes left
[   11.043321] ip (686) used greatest stack depth: 12424 bytes left
[   11.976054] ------------[ cut here ]------------
[   11.976160] refcount_t: underflow; use-after-free.
[   11.976214] WARNING: CPU: 0 PID: 68 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   11.976282] Modules linked in: veth nf_tables
[   11.976323] CPU: 0 UID: 0 PID: 68 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   11.976412] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.976476] Workqueue: netns cleanup_net
[   11.976528] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   11.976577] Code: b1 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 b1 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
[   11.976730] RSP: 0018:ffffa7408025fd50 EFLAGS: 00010286
[   11.976772] RAX: 0000000000000000 RBX: ffffa7408025fd60 RCX: 00000000ffffdfff
[   11.976822] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   11.976878] RBP: ffffa7408025f868 R08: ffffffffb2156d28 R09: 00000000ffffdfff
[   11.976950] R10: ffffffffb2076d40 R11: ffffffffb2126d40 R12: dead000000000122
[   11.977016] R13: 00000000fffb9a66 R14: 0000000000000001 R15: ffff89da879c1000
[   11.977073] FS:  0000000000000000(0000) GS:ffff89db0c3d8000(0000) knlGS:0000000000000000
[   11.977133] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.977177] CR2: 00000000004e5a60 CR3: 0000000009e83003 CR4: 0000000000772ef0
[   11.977228] PKRU: 55555554
[   11.977248] Call Trace:
[   11.977274]  <TASK>
[   11.977296]  netdev_run_todo+0x21a/0x550
[   11.977335]  ops_undo_list+0x1e3/0x1f0
[   11.977381]  cleanup_net+0x1b7/0x2b0
[   11.977409]  process_one_work+0x162/0x380
[   11.977446]  worker_thread+0x299/0x3c0
[   11.977477]  ? rescuer_thread+0x4c0/0x4c0
[   11.977517]  kthread+0x101/0x1f0
[   11.977551]  ? kthreads_online_cpu+0x110/0x110
[   11.977591]  ? kthreads_online_cpu+0x110/0x110
[   11.977630]  ret_from_fork+0x11c/0x140
[   11.977670]  ? kthreads_online_cpu+0x110/0x110
[   11.977721]  ret_from_fork_asm+0x11/0x20
[   11.977752]  </TASK>
[   11.977769] ---[ end trace 0000000000000000 ]---
[   15.147292] nft (1355) used greatest stack depth: 12344 bytes left
[   44.112856] ip (6145) used greatest stack depth: 12280 bytes left
[  308.629578] ip (24679) used greatest stack depth: 12168 bytes left