[    2.584621] ip (253) used greatest stack depth: 12136 bytes left
[    6.994603] ------------[ cut here ]------------
[    6.994696] refcount_t: underflow; use-after-free.
[    6.994765] WARNING: CPU: 0 PID: 68 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    6.994860] Modules linked in: tcp_diag inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
[    6.994996] CPU: 0 UID: 0 PID: 68 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    6.995094] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    6.995159] Workqueue: netns cleanup_net
[    6.995207] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    6.995268] Code: a6 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 31 a6 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
[    6.995451] RSP: 0018:ffffb7908025bd50 EFLAGS: 00010286
[    6.995504] RAX: 0000000000000000 RBX: ffffb7908025bd60 RCX: 00000000ffffdfff
[    6.995596] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    6.995677] RBP: ffffb7908025b868 R08: ffffffffa6756d28 R09: 00000000ffffdfff
[    6.995756] R10: ffffffffa6676d40 R11: ffffffffa6726d40 R12: dead000000000122
[    6.995834] R13: 00000000fffb86f2 R14: 0000000000000001 R15: ffff9c7605609000
[    6.995915] FS:  0000000000000000(0000) GS:ffff9c7697dd8000(0000) knlGS:0000000000000000
[    6.996001] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.996065] CR2: 00007f89771b8000 CR3: 000000002f441004 CR4: 0000000000772ef0
[    6.996145] PKRU: 55555554
[    6.996170] Call Trace:
[    6.996197]  <TASK>
[    6.996222]  netdev_run_todo+0x21a/0x550
[    6.996271]  ops_undo_list+0x1e3/0x1f0
[    6.996318]  cleanup_net+0x1b7/0x2b0
[    6.996357]  process_one_work+0x162/0x380
[    6.996405]  worker_thread+0x299/0x3c0
[    6.996451]  ? rescuer_thread+0x4c0/0x4c0
[    6.996498]  kthread+0x101/0x1f0
[    6.996538]  ? kthreads_online_cpu+0x110/0x110
[    6.996595]  ? kthreads_online_cpu+0x110/0x110
[    6.996651]  ret_from_fork+0x11c/0x140
[    6.996698]  ? kthreads_online_cpu+0x110/0x110
[    6.996751]  ret_from_fork_asm+0x11/0x20
[    6.996801]  </TASK>
[    6.996824] ---[ end trace 0000000000000000 ]---