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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - failure to find use after free"
href="http://llvm.org/bugs/show_bug.cgi?id=16482">16482</a>
</td>
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<tr>
<th>Summary</th>
<td>failure to find use after free
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</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>OpenBSD
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Static Analyzer
</td>
</tr>
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<th>Assignee</th>
<td>kremenek@apple.com
</td>
</tr>
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<th>Reporter</th>
<td>bret.lambert@gmail.com
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=10791" name="attach_10791" title="code containing clear use-after-free, which fails to register in the static analyzer">attachment 10791</a> <a href="attachment.cgi?id=10791&action=edit" title="code containing clear use-after-free, which fails to register in the static analyzer">[details]</a></span>
code containing clear use-after-free, which fails to register in the static
analyzer
While attempting to find an issue regarding false use-after-free warnings with
BSD macros, I have apparently found that the static analyzer fails to register
a valid use-after-free warning:
$ scan-build make macro-use-after-free-false-positive
scan-build: Using '/usr/local/bin/clang-3.2' for static analysis
/usr/local/bin/ccc-analyzer -O2 -pipe -o macro-use-after-free-false-positive
macro-use-after-free-false-positive.c
scan-build: Removing directory '/tmp/scan-build-2013-06-28-4' because it
contains no reports.
Code containing use-after-free is attached.
more info regarding clang/OS:
$ clang --version
clang version 3.2 (tags/RELEASE_32/final)
Target: amd64-unknown-openbsd5.3
Thread model: posix
$ uname -mrsv
OpenBSD 5.3 GENERIC.MP#5 amd64</pre>
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