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        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - nullpointer dereference causes xorg-server segfault when nouveau DRI driver is loaded"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=61947">61947</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>nouveau@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>nullpointer dereference causes xorg-server segfault when nouveau DRI driver is loaded
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>critical
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>jan@jgc.homeip.net
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>9.1
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Drivers/DRI/nouveau
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=76086" name="attach_76086" title="Patch that fixes the segfault">attachment 76086</a> <a href="attachment.cgi?id=76086&action=edit" title="Patch that fixes the segfault">[details]</a></span>
Patch that fixes the segfault

Chromium can crash Xorg when the nouveau DRI driver is loaded. This is due to a
nullpointer dereference.

Archlinux bug (Xorg crash): <a href="https://bugs.archlinux.org/task/33994">https://bugs.archlinux.org/task/33994</a>
Fedora bug (Application crash, same cause):
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=862466">https://bugzilla.redhat.com/show_bug.cgi?id=862466</a>

As suggested in the Fedora bug, <a href="show_bug.cgi?id=61947#c15">comment 15</a>, attached is a patch that fixes this
issue (confirmed on Archlinux). This is the same check the Intel DRI driver
does, so I think it's needed there.</pre>
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