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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Out of bounds array access in FindProcIndex"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106836">106836</a>
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<th>Summary</th>
<td>Out of bounds array access in FindProcIndex
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<th>Product</th>
<td>Mesa
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<th>Version</th>
<td>git
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>Linux (All)
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>major
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>EGL
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
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<th>Reporter</th>
<td>yogishk@nvidia.com
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<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
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<pre>Created <span class=""><a href="attachment.cgi?id=140049" name="attach_140049" title="Fix out of bounds array access in FindProcIndex">attachment 140049</a> <a href="attachment.cgi?id=140049&action=edit" title="Fix out of bounds array access in FindProcIndex">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=106836&attachment=140049'>[review]</a>
Fix out of bounds array access in FindProcIndex
When name passed to FindProcIndex() is not present in array
__EGL_DISPATCH_FUNC_NAMES, "last" can become -1. But since it is declared as
unsigned "while (first <= last)" check will get pass and
_EGL_DISPATCH_FUNC_NAMES[] will be accessed out of the bounds.
When application try to look egl* API using eglGetProcAddress(), glvnd will try
to set dispatch index by calling __eglSetDispatchIndex()for each vendor. When
mesa's __eglSetDispatchIndex() is called and if egl API is not present in
__EGL_DISPATCH_FUNC_NAMES, application will crash.</pre>
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