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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 - Dereference a pointer after null check"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91356">91356</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Dereference a pointer after null check
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Wayland
          </td>
        </tr>

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

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

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

        <tr>
          <th>Reporter</th>
          <td>ashim.shah@samsung.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Overview:
---------
Dereference a pointer after null check


Description:
-----------

File: <a href="http://cgit.freedesktop.org/wayland/wayland/tree/src/wayland-server.c">http://cgit.freedesktop.org/wayland/wayland/tree/src/wayland-server.c</a>
Line: 783

client->display_resource is NULL and client is passed as argument as below
wl_client_post_no_memory(client);

Line: 515
client->display_resource (NULL) is passed as argument
wl_resource_post_error(client->display_resource, WL_DISPLAY_ERROR_NO_MEMORY,
"no memory");

Line: 210
struct wl_client *client = resource->client;
resource is NULL so dereferencing a NULL pointer.

Expected:
--------
NULL checking required before dereferencing</pre>
        </div>
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