[Bug Report]: 发现与CVE-2021-22901类似的同源漏洞

### Contact Details

1281750532@qq.com

### What happened?

我发现您的项目中`components/curl/lib/multi.c`文件中的`detach_connnection`函数可能存在UAF漏洞，相关触发逻辑类似CVE-2021-22901, 具体参考链接如下：

> CVE-2021-22901:
> NVD说明链接：
> https://nvd.nist.gov/vuln/detail/CVE-2021-22901
> commit修复链接：
> https://github.com/curl/curl/commit/7f4a9a9b2a49547eae24d2e19bc5c346e9026479

考虑到其可能存在的潜在风险，我愿意配合您以负责任的方式及时核实、解决和报告发现的漏洞。 如果您需要任何进一步的信息或帮助，请随时与我联系。如果需要，我也可以提交PR帮助您修复。 谢谢您，期待尽快收到您的回复！

### Version

master (Default)

### What soultions are you seeing the problem on?

_No response_

### Relevant log output

_No response_

Start with components/curl/lib/multi.c and inspect the detach_connnection function alongside the referenced CVE-2021-22901 report and curl commit. Determine whether the reported logic produces the same UAF condition; done means the finding is confirmed or ruled out and, if confirmed, its remediation is documented or implemented.

Written by the indexing model from the issue text.