[    2.775673] ip (268) used greatest stack depth: 12200 bytes left
[   22.470215] ------------[ cut here ]------------
[   22.470357] refcount_t: underflow; use-after-free.
[   22.470419] WARNING: CPU: 1 PID: 68 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   22.470483] Modules linked in: nft_ct nf_conntrack_netlink nft_redir nft_masq tcp_diag inet_diag nft_nat nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
[   22.470617] CPU: 1 UID: 0 PID: 68 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   22.470711] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.470759] Workqueue: netns cleanup_net
[   22.470800] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   22.470846] Code: 96 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 91 96 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
[   22.470968] RSP: 0018:ffffaa850025bd50 EFLAGS: 00010286
[   22.471010] RAX: 0000000000000000 RBX: ffffaa850025bd60 RCX: 00000000ffffdfff
[   22.471058] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   22.471112] RBP: ffffaa850025b868 R08: ffffffff96d56d28 R09: 00000000ffffdfff
[   22.471166] R10: ffffffff96c76d40 R11: ffffffff96d26d40 R12: dead000000000122
[   22.471219] R13: 00000000fffbc352 R14: 0000000000000001 R15: ffff998144761000
[   22.471268] FS:  0000000000000000(0000) GS:ffff9981e7858000(0000) knlGS:0000000000000000
[   22.471323] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.471367] CR2: 000055976e541458 CR3: 0000000019841003 CR4: 0000000000772ef0
[   22.471422] PKRU: 55555554
[   22.471447] Call Trace:
[   22.471467]  <TASK>
[   22.471489]  netdev_run_todo+0x21a/0x550
[   22.471534]  ops_undo_list+0x1e3/0x1f0
[   22.471578]  cleanup_net+0x1b7/0x2b0
[   22.471608]  process_one_work+0x162/0x380
[   22.471646]  worker_thread+0x299/0x3c0
[   22.471675]  ? rescuer_thread+0x4c0/0x4c0
[   22.471706]  kthread+0x101/0x1f0
[   22.471742]  ? kthreads_online_cpu+0x110/0x110
[   22.471779]  ? kthreads_online_cpu+0x110/0x110
[   22.471820]  ret_from_fork+0x11c/0x140
[   22.471857]  ? kthreads_online_cpu+0x110/0x110
[   22.471894]  ret_from_fork_asm+0x11/0x20
[   22.471927]  </TASK>
[   22.471948] ---[ end trace 0000000000000000 ]---