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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Buffer overrun (segfault) decompressing ETC2 texture in GLBenchmark 3.0 Manhattan"
href="https://bugs.freedesktop.org/show_bug.cgi?id=74988">74988</a>
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>Buffer overrun (segfault) decompressing ETC2 texture in GLBenchmark 3.0 Manhattan
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>courtney@lunarg.com
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Version</th>
<td>10.0
</td>
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<th>Component</th>
<td>Mesa core
</td>
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<th>Product</th>
<td>Mesa
</td>
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<p>
<div>
<pre>Saw intermittent segfault running GLBenchmark 3.0's Manhattan test. Narrowed
issue down to writing outside the memory bounds of the texture when
decompressing ETC2 data. Probably the root cause of <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Segfault when calling glCompressedTexImage2D with ETC2 textures"
href="show_bug.cgi?id=71002">bug 71002</a> (which has a nice
repro) as well.
See patch mesa-add-bounds-checking-to-eliminate-buffer-overrun on mesadev for
more details.</pre>
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</p>
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