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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/4126/">https://reviewboard.asterisk.org/r/4126/</a>
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<a href="https://reviewboard.asterisk.org/r/4126/diff/1/?file=68594#file68594line3233" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/apps/app_voicemail.c</a>
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(Diff revision 1)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static void init_vm_state(struct vm_state *vms) </pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static void init_vm_state(struct vm_state *vms)<span class="ew"> </span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static void init_vm_state(struct vm_state *vms)<span class="ew"> </span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">{</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">{</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>int x;</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>vms->msg_array_max = VMSTATE_MAX_MSG_ARRAY;</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>vms->vmArrayIndex = 0;</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>vms->msgArray = ast_calloc(vms->msg_array_max, sizeof(long));</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>for (x = 0; x < VMSTATE_MAX_MSG_ARRAY; x++) {</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>if (!vms->msgArray) {</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span>vms->msgArray[x] = 0;</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span>/* Out of mem? This can't be good. */</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span>vms->msg_array_max = 0;</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>}</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>}</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>vms->vmArrayIndex = 0;</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>ast_mutex_init(&vms->lock);</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>ast_mutex_init(&vms->lock);</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">}</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">}</pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">The struct vm_state in vm_execmain is allocated on the stack. init_vm_state is called on it if IMAP_STORAGE is defined, regardless of the value of vmu. However, we only call vmstate_delete if vmu was allocated - so this may introduce a potential memory leak (on top of the ones you've already pointed out).
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<p>- Matt Jordan</p>
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<p>On October 29th, 2014, 4:53 a.m. CDT, wdoekes wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By wdoekes.</div>
<p style="color: grey;"><i>Updated Oct. 29, 2014, 4:53 a.m.</i></p>
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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/ASTERISK-24190">ASTERISK-24190</a>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
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<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;">In update_messages_by_imapuser(), messages were appended without checking bounds:
vms->msgArray[vms->vmArrayIndex++] = number;
This patch ensures that there is enough room.
However, I did find quirky usage of thread local storage which I couldn't explain. Perhaps someone else can shed some light on the XXX's that I left in the code:
- vms is thread-local, so it may not need to be freed. But on line 3033, it is overwritten if (strcmp(vms_p->imapuser, vmu->imapuser) || strcmp(vms_p->username, vmu->mailbox))
(or should it be freed in vmstate_delete?)
- in vmstate_insert, an alternative mailbox overwrites the supplied one, but no msgArray copying is done. That can't be right.
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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;">The reporter -- Nick Adams -- has run this patch in production for a number of months now, without issues.</pre>
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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">(426569)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/4126/diff/" style="margin-left: 3em;">View Diff</a></p>
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