[    2.571422] ip (248) used greatest stack depth: 12136 bytes left
[    7.120573] ------------[ cut here ]------------
[    7.120664] refcount_t: underflow; use-after-free.
[    7.120739] WARNING: CPU: 1 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    7.120832] Modules linked in: tcp_diag inet_diag nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_tables veth
[    7.120967] CPU: 1 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    7.121063] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.121130] Workqueue: netns cleanup_net
[    7.121176] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    7.121235] Code: af 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 f1 af 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
[    7.121418] RSP: 0018:ffffb99c80257d50 EFLAGS: 00010286
[    7.121472] RAX: 0000000000000000 RBX: ffffb99c80257d60 RCX: 00000000ffffdfff
[    7.121557] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    7.121640] RBP: ffffb99c80257868 R08: ffffffffb0356d28 R09: 00000000ffffdfff
[    7.121722] R10: ffffffffb0276d40 R11: ffffffffb0326d40 R12: dead000000000122
[    7.121802] R13: 00000000fffb8753 R14: 0000000000000001 R15: ffff956a4112f000
[    7.121883] FS:  0000000000000000(0000) GS:ffff956ace258000(0000) knlGS:0000000000000000
[    7.121968] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.122033] CR2: 00007fa57ac38000 CR3: 000000001ac41001 CR4: 0000000000772ef0
[    7.122114] PKRU: 55555554
[    7.122138] Call Trace:
[    7.122166]  <TASK>
[    7.122190]  netdev_run_todo+0x21a/0x550
[    7.122241]  ops_undo_list+0x1e3/0x1f0
[    7.122293]  cleanup_net+0x1b7/0x2b0
[    7.122332]  process_one_work+0x162/0x380
[    7.122379]  worker_thread+0x299/0x3c0
[    7.122417]  ? rescuer_thread+0x4c0/0x4c0
[    7.122454]  kthread+0x101/0x1f0
[    7.122492]  ? kthreads_online_cpu+0x110/0x110
[    7.122545]  ? kthreads_online_cpu+0x110/0x110
[    7.122599]  ret_from_fork+0x11c/0x140
[    7.122644]  ? kthreads_online_cpu+0x110/0x110
[    7.122715]  ret_from_fork_asm+0x11/0x20
[    7.122764]  </TASK>
[    7.122796] ---[ end trace 0000000000000000 ]---