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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - use-after-free or Assertion `Tok.is(tok::eof) && Tok.getEofData() == AttrEnd.getEofDat a()'."
href="https://bugs.llvm.org/show_bug.cgi?id=33485">33485</a>
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<th>Summary</th>
<td>use-after-free or Assertion `Tok.is(tok::eof) && Tok.getEofData() == AttrEnd.getEofDat a()'.
</td>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>kcc@google.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>r305508, x86_64 linux.
echo Y2Fzc/9Ge2M8KEYoKEazRig7OykpKSko | base64 -d | clang -x c++ -
tools/clang/lib/Parse/ParseExprCXX.cpp:3173: ExprResult
clang::Parser::ParseCXXAmbiguousParenExpression(clang::Parser::ParenParseOpt
ion &, ParsedType &, clang::BalancedDelimiterTracker &,
clang::ColonProtectionRAIIObject &): Assertion `Tok.is(tok::eof) &&
Tok.getEofData() == AttrEnd.getEofData()' failed.
in a no-assert build this manifests as 20-byte read-heap-use-after-free in
clang::TokenLexer::Lex(clang::Token&)
found by clang-fuzzer</pre>
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