<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=http://email.email.llvm.org/c/eJytksFu3CAQhp8GX9Aie-z1mgMHd6OceuiheQDArE2LAQFOlD59x84mPVQ9VC1CMDDi_z8No8L0Kp6y9TMti6GyFKkXM9FVWs90jFSHNVr3W14yrQlcqaRbNid5KyadYrA5eGo91U76mbQjzq9mjU4WM6Z5W40vn20ub5lrMnh_DfGVBq23lBmpH0g9jndPQ-ARjb_TrJONhdr8Yb87lxDuD8j5E0KMO8MXRLDBsyITm3-Q8wOBYSkl5t0SHnHOtiybYmixy7vn9-0UU_hmdMHjDb0z7peh67uuxegP8sDvAMdaTaKdeMtlJbeyhCSmsK7uWKotOfHXHDbn7QA5tw3wahE910Pf1Jy3NZwbrmq4KG6g79QwXS6gKyeVcVlgQQiANy_0kMAYK1H9O4EVUAPUDQ4ALA67qXZSCgakaJseOtLVBjvHsV2HhTRXSRySapszJh1-fv6VlDnb2RtzACNhscUZ8R8aqjrAxUH9E6xb8X8>53129</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            use-after-poison in clang::TemplateArgumentList::CreateCopy
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          dommldomml
      </td>
    </tr>
</table>

<pre>
    Using the attached main.cpp compiling the attached a.cc, a use-after-poison in clang::TemplateArgumentList::CreateCopy occurs.
A compile/link script is attached, too.
[useAfterPoision.tar.gz](https://github.com/llvm/llvm-project/files/7846443/useAfterPoision.tar.gz)


</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJytksGO3CAMhp-GXNCgBJhpcuCQzmpPPfTQPgAQJ6ElgIDsavv0ddJpe6h6qFRkYYOFv98WJk5v6nNxYaF1Bapr1XaFiW7aBWZTojZuyfk_8ppZS_idaroXuOi5Qr6k6EoM1AVqvQ4LESPaJ9iS1xXGvOwbhPrBlfojc8-A9_eY3mi0ds-FkfaJtOP4YALhzwj-SovNLlXqyi_8Qa4xPh6Q63sUMR4aPqIEFwOrOrPlG7k-Ed6vtaZyIPkz2uLquhuGiKO8f_npLinHL2ArHmdkF_TvenmTUmD0l_J8eAg492ZSYhrEoJvqqgf1HwbT7Nmrf9bvStnPBq6i40OzKmOnq-y5uPWD4UKaWXbS6HkGoVt962TjtQFfFA6ScB7glZ4lMMYJNk7xlvO2w8U5joTNRkzG8N4MILobl0S2gP_Fs0MHi3lpsjolmX0pmPTYWfmd1KW4JQCcOKyv97rGrKa4bf7cmpOuTvXfAb-W3RM">