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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [regression] BUG unable to handle kernel NULL pointer dereference in kernel 4.15.3"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=105174">105174</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[regression] BUG unable to handle kernel NULL pointer dereference in kernel 4.15.3
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </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>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Driver/nouveau
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>dominik@greysector.net
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=137463" name="attach_137463" title="full dmesg">attachment 137463</a> <a href="attachment.cgi?id=137463&action=edit" title="full dmesg">[details]</a></span>
full dmesg

After updating to Fedora kernel 4.15.3-300.fc27.x86_64, I got:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
IP: nouveau_mem_host+0x47/0x1b0 [nouveau]

Full dmesg attached. The hardware is Dell XPS 15 with Intel and nVidia GPU in
Optimus configuration.

Note: this looks different from <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - [MCP79][Regression] Unhandled NULL pointer dereference since kernel 4.15"
   href="show_bug.cgi?id=105173">bug 105173</a>.</pre>
        </div>
      </p>


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