<html>
    <head>
      <base href="https://bugs.webkit.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <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>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[WK1] Wheel event callback removing the window causes crash in WebCore
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Event Handling
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>bfulgham&#64;webkit.org
          </td>
        </tr></table>
      <p>
        <div>
        <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>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>