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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - False positive when returning an inner pointer from malloc'ed block"
href="https://bugs.llvm.org/show_bug.cgi?id=35729">35729</a>
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<th>Summary</th>
<td>False positive when returning an inner pointer from malloc'ed block
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>4.0
</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>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Static Analyzer
</td>
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<th>Assignee</th>
<td>dcoughlin@apple.com
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<th>Reporter</th>
<td>christopher.crouzet@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19594" name="attach_19594" title="main.c">attachment 19594</a> <a href="attachment.cgi?id=19594&action=edit" title="main.c">[details]</a></span>
main.c
Hello,
As suggested by the FAQ
(<a href="https://clang-analyzer.llvm.org/faq.html#suppress_issue">https://clang-analyzer.llvm.org/faq.html#suppress_issue</a>), I am here to report
what I (and Valgrind) believe is a false positive.
When implementing an aligned allocator, it is common to allocate a block and
return to the user only a different pointer located within the block, which
Clang Static Analyzer flags as a potential leak of memory.
Attached is a short code snippet that triggers the false positive.
Regards,
Christopher.</pre>
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