[    8.389351] ------------[ cut here ]------------
[    8.389436] refcount_t: underflow; use-after-free.
[    8.389512] WARNING: CPU: 3 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    8.389611] Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib ip6t_rpfilter ipt_rpfilter xt_tcpudp nft_compat nf_tables x_tables dummy veth
[    8.389764] CPU: 3 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    8.389864] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.389940] Workqueue: netns cleanup_net
[    8.389987] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    8.390049] Code: 85 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 51 85 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
[    8.390240] RSP: 0018:ffffb3db80257d50 EFLAGS: 00010286
[    8.390302] RAX: 0000000000000000 RBX: ffffb3db80257d60 RCX: 00000000ffffdfff
[    8.390394] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    8.390498] RBP: ffffb3db80257868 R08: ffffffff85956d28 R09: 00000000ffffdfff
[    8.390579] R10: ffffffff85876d40 R11: ffffffff85926d40 R12: dead000000000122
[    8.390665] R13: 00000000fffb8c65 R14: 0000000000000001 R15: ffff91b6c3041000
[    8.390749] FS:  0000000000000000(0000) GS:ffff91b778d58000(0000) knlGS:0000000000000000
[    8.390844] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.390918] CR2: 00007fa5633ed600 CR3: 0000000004f61004 CR4: 0000000000772ef0
[    8.391006] PKRU: 55555554
[    8.391039] Call Trace:
[    8.391070]  <TASK>
[    8.391106]  netdev_run_todo+0x21a/0x550
[    8.391159]  ops_undo_list+0x1e3/0x1f0
[    8.391210]  cleanup_net+0x1b7/0x2b0
[    8.391258]  process_one_work+0x162/0x380
[    8.391314]  worker_thread+0x299/0x3c0
[    8.391371]  ? rescuer_thread+0x4c0/0x4c0
[    8.391420]  kthread+0x101/0x1f0
[    8.391472]  ? kthreads_online_cpu+0x110/0x110
[    8.391524]  ? kthreads_online_cpu+0x110/0x110
[    8.391580]  ret_from_fork+0x11c/0x140
[    8.391635]  ? kthreads_online_cpu+0x110/0x110
[    8.391698]  ret_from_fork_asm+0x11/0x20
[    8.391750]  </TASK>
[    8.391784] ---[ end trace 0000000000000000 ]---