[    3.024475] ip (274) used greatest stack depth: 11912 bytes left
[    3.059153] ipip: IPv4 and MPLS over IPv4 tunneling driver
[    9.897275] ------------[ cut here ]------------
[    9.897349] refcount_t: underflow; use-after-free.
[    9.897414] WARNING: CPU: 3 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    9.897495] Modules linked in: xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_compat nf_tables x_tables inet_diag ipip veth
[    9.897595] CPU: 3 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    9.897667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.897713] Workqueue: netns cleanup_net
[    9.897752] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    9.897803] Code: 8e 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 11 8e 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
[    9.897949] RSP: 0018:ffffa21240253d50 EFLAGS: 00010286
[    9.898000] RAX: 0000000000000000 RBX: ffffa21240253d60 RCX: 00000000ffffdfff
[    9.898063] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    9.898137] RBP: ffffa21240253868 R08: ffffffff8e556d28 R09: 00000000ffffdfff
[    9.898216] R10: ffffffff8e476d40 R11: ffffffff8e526d40 R12: dead000000000122
[    9.898279] R13: 00000000fffb9236 R14: 0000000000000001 R15: ffff95b3c6452000
[    9.898342] FS:  0000000000000000(0000) GS:ffff95b470158000(0000) knlGS:0000000000000000
[    9.898408] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.898462] CR2: 00007f176c9f8000 CR3: 0000000039a41006 CR4: 0000000000772ef0
[    9.898522] PKRU: 55555554
[    9.898545] Call Trace:
[    9.898567]  <TASK>
[    9.898595]  netdev_run_todo+0x21a/0x550
[    9.898645]  ops_undo_list+0x1e3/0x1f0
[    9.898685]  cleanup_net+0x1b7/0x2b0
[    9.898722]  process_one_work+0x162/0x380
[    9.898759]  worker_thread+0x299/0x3c0
[    9.898792]  ? rescuer_thread+0x4c0/0x4c0
[    9.898828]  kthread+0x101/0x1f0
[    9.898864]  ? kthreads_online_cpu+0x110/0x110
[    9.898917]  ? kthreads_online_cpu+0x110/0x110
[    9.898976]  ret_from_fork+0x11c/0x140
[    9.899020]  ? kthreads_online_cpu+0x110/0x110
[    9.899070]  ret_from_fork_asm+0x11/0x20
[    9.899112]  </TASK>
[    9.899135] ---[ end trace 0000000000000000 ]---