<p>Reported (and verified) by Satish Patel on the developers mailing list that issuing the following command crashes opensips:</p>

<p>opensipsctl fifo dlg_list to_uri::</p>

<p>The p1 value is never verified to not be NULL before calling dlg_hash which crashes the program.  Perhaps there is a better way to resolve this problem, but here is my pull request.</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>&nbsp;&nbsp;<a href='https://github.com/OpenSIPS/opensips/pull/462'>https://github.com/OpenSIPS/opensips/pull/462</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>Verify the dialog mi parameter is not null before passing to dlg_hash</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/OpenSIPS/opensips/pull/462/files#diff-0">modules/dialog/dlg_hash.c</a>
    (3)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/OpenSIPS/opensips/pull/462.patch'>https://github.com/OpenSIPS/opensips/pull/462.patch</a></li>
  <li><a href='https://github.com/OpenSIPS/opensips/pull/462.diff'>https://github.com/OpenSIPS/opensips/pull/462.diff</a></li>
</ul>

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