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    <head>
      <base href="https://bugzilla.libav.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 - avconv: NULL pointer dereference in mpeg4video_probe (m4vdec.c)"
   href="https://bugzilla.libav.org/show_bug.cgi?id=962">962</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>avconv: NULL pointer dereference in mpeg4video_probe (m4vdec.c)
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Libav
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>git HEAD
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>---
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>general
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>bugzilla@libav.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>ago@gentoo.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>lu_zero@gentoo.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=604" name="attach_604" title="reproducer">attachment 604</a> <a href="attachment.cgi?id=604&action=edit" title="reproducer">[details]</a></span>
reproducer

Hello,

the attached reproducer causes a NULL pointer dereference.

The command used to hit the crash is:
avconv -i $FILE -f null -


The stacktrace is about 11.3, but the bug is reproducible with 11.7 too
This is not reproducible in master because of this commit:
<a href="https://git.libav.org/?p=libav.git;a=commit;h=v12_dev0-3071-ge5b0197">https://git.libav.org/?p=libav.git;a=commit;h=v12_dev0-3071-ge5b0197</a>

Luca said that the issue is not anymore reachable though the provided testcase,
but the issue is still here.


If you need something else, feel free to ask.</pre>
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