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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Member call on NULL pointer in JavaScriptCore/dfg/DFGAbstractInterpretterInlines.h"
href="https://bugs.webkit.org/show_bug.cgi?id=160870">160870</a>
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<th>Summary</th>
<td>Member call on NULL pointer in JavaScriptCore/dfg/DFGAbstractInterpretterInlines.h
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>WebKit Nightly Build
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<th>Hardware</th>
<td>Unspecified
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<th>OS</th>
<td>Unspecified
</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>P2
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<th>Component</th>
<td>JavaScriptCore
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>jbedard@apple.com
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<p>
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<pre>In a few cases (js/regress/simple-regexp-exec-folding.html, for example) forAllTransitiveIncomingValues in PhiChildren (JavaScriptCore/dfg/DFGPhiChildren.h) is called from a NULL pointer. Because of the current implementation of forAllTransitiveIncomingValues, this does not currently cause a crash. It is, however, an obvious bug, especially because in another case, the caller checks the PhiChildren pointer before calling this function.
NULL pointer: JavaScriptCore/dfg/DFGAbstractInterpretterInlines.h line 1997
Analogous call: JavaScriptCore/dfg/DFGAbstractInterpretterInlines.h line 2273</pre>
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