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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Double-free corruption in vector move assignment"
href="http://llvm.org/bugs/show_bug.cgi?id=20362">20362</a>
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<th>Summary</th>
<td>Double-free corruption in vector move assignment
</td>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>unspecified
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>tkoeppe@google.com
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</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu, mclow.lists@gmail.com
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=12792" name="attach_12792" title="Demonstrates double-free corruption in vector move assignment">attachment 12792</a> <a href="attachment.cgi?id=12792&action=edit" title="Demonstrates double-free corruption in vector move assignment">[details]</a></span>
Demonstrates double-free corruption in vector move assignment
The move-assignment operator in vector acknowledges that it may throw an
exception if the allocator's move assignment throws, but the implementation is
not correct when an actual exception occurs: both the source and the target are
left owning the same dynamic memory.
For example, see vector:1337 at revision 213415. (I haven't looked further to
see if similar problems exist elsewhere.)
I'm attaching a self-contained example.</pre>
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