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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [WK1] Wheel event callback removing the window causes crash in WebCore"
href="https://bugs.webkit.org/show_bug.cgi?id=156409">156409</a>
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<th>Summary</th>
<td>[WK1] Wheel event callback removing the window causes crash in WebCore
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>WebKit Nightly Build
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>Event Handling
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
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<th>Reporter</th>
<td>bfulgham@webkit.org
</td>
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<p>
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<pre>This is a follow-up to <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Wheel event callback removing the window causes crash in WebCore."
href="show_bug.cgi?id=150871">Bug 150871</a>, which dealt with this problem in a WK2 context.
If a window is removed while it is triggering a wheel event, it will crash with a bad memory access, because WebKit will attempt to use the destroyed view. While we corrected the WK2 version of this problem, WK1 takes a slightly different code path that needs to be fixed.
The crash is shown by fast/events/wheel-event-destroys-frame.html.</pre>
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