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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [PATCH] Check arguments to udev_enumerate_new"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=58289">58289</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>systemd-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[PATCH] Check arguments to udev_enumerate_new
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>systemd-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

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

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

        <tr>
          <th>Reporter</th>
          <td>michael.terry@canonical.com
          </td>
        </tr>

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

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

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

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

        <tr>
          <th>Product</th>
          <td>systemd
          </td>
        </tr></table>
      <p>
        <div>
        <pre>udev_enumerate_new() does not check its input argument of a 'struct udev' for
NULLness.

This means that arguably sloppy code like in Xorg:

    udev = udev_monitor_get_udev(udev_monitor);
    enumerate = udev_enumerate_new(udev);
    if (!enumerate)
        return;

Will have a valid (but unusable) enumerate object even if the 'udev' pointer
itself is NULL.

While the Xorg code should probably also check the 'udev' pointer, I think it
makes sense for libudev to not create/return a bogus enumerate object.  Plus,
the other functions in libudev are pretty good about validating their input, so
it would be consistent.

Patch coming.</pre>
        </div>
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