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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/1994/">https://reviewboard.asterisk.org/r/1994/</a>
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<p style="margin-top: 0;">On June 22nd, 2012, 11:57 a.m., <b>Mark Michelson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1994/diff/2/?file=29022#file29022line8029" style="color: black; font-weight: bold; text-decoration: underline;">branches/1.8/apps/app_voicemail.c</a>
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(Diff revision 2)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int close_mailbox(struct vm_state *vms, struct ast_vm_user *vmu)</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">vms</span><span class="o">-></span><span class="n">deleted</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">vms</span><span class="o">-></span><span class="n">deleted</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="cm">/* Since we now expunge after each delete, deleting in reverse order</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="cm">/* Since we now expunge after each delete, deleting in reverse order</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * ensures that no reordering occurs between each step. */</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * ensures that no reordering occurs between each step. */</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">last_msg_idx</span> <span class="o">=</span> <span class="n">vms</span><span class="o">-></span><span class="n">dh_arraysize</span><span class="p">;</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">last_msg_idx</span> <span class="o">=</span> <span class="n">vms</span><span class="o">-></span><span class="n">dh_arraysize</span><span class="p">;</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">for</span> <span class="p">(</span><span class="n">x</span> <span class="o">=</span> <span class="n">last_msg_idx</span> <span class="o">-</span> <span class="mi">1</span><span class="p">;</span> <span class="n">x</span> <span class="o">>=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">x</span><span class="o">--</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">for</span> <span class="p">(</span><span class="n">x</span> <span class="o">=</span> <span class="n">last_msg_idx</span> <span class="o">-</span> <span class="mi">1</span><span class="p">;</span> <span class="n">x</span> <span class="o">>=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">x</span><span class="o">--</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">vms</span><span class="o">-></span><span class="n">deleted</span><span class="p">[</span><span class="n">x</span><span class="p">])</span> <span class="p">{</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">vms</span><span class="o">-></span><span class="n">deleted</span><span class="p">[</span><span class="n">x</span><span class="p">])</span> <span class="p">{</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">ast_debug</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="s">"IMAP delete of %d</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">x</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">ast_debug</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="s">"IMAP delete of %d</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">x</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">DELETE</span><span class="p">(</span><span class="n">vms</span><span class="o">-></span><span class="n">curdir</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">vms</span><span class="o">-></span><span class="n">fn</span><span class="p">,</span> <span class="n">vmu</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">DELETE</span><span class="p">(</span><span class="n">vms</span><span class="o">-></span><span class="n">curdir</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">vms</span><span class="o">-></span><span class="n">fn</span><span class="p">,</span> <span class="n">vmu</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">There's an access to vms->dh_arraysize here without a lock held.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Fixed.</pre>
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<p>- opticron</p>
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<p>On June 20th, 2012, 3:18 p.m., opticron wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By opticron.</div>
<p style="color: grey;"><i>Updated June 20, 2012, 3:18 p.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This patch reworks the handling of array allocation and freeing to ensure that freed memory is not used.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Poked through voicemail manually. Testing has been performed on issue ASTERISK-19923 and seems to have corrected the segfault in that case.</pre>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="https://issues.asterisk.org/jira/browse/AST-894">AST-894</a>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>branches/1.8/apps/app_voicemail.c <span style="color: grey">(368806)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/1994/diff/" style="margin-left: 3em;">View Diff</a></p>
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