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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/3055/">https://reviewboard.asterisk.org/r/3055/</a>
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<div>Review request for Asterisk Developers and Matt Jordan.</div>
<div>By Scott Griepentrog.</div>
<p style="color: grey;"><i>Updated Dec. 10, 2013, 1:39 p.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Changes</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;">Reworked to put copy of e->data on stack while locked to prevent reference after free during reload</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Summary (updated)</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;">pbx.c: put copy of ast_exten.data on stack to prevent memory corruption</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-1179">AST-1179</a>,
<a href="https://issues.asterisk.org/jira/browse/AST-1246">AST-1246</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 (updated)</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;">During dialplan execution in pbx_extension_helper(), the contexts global read lock is used prevent changes to the dialplan. This patch puts a copy of exten->data on the stack so that can be referenced safely during variable substitution (expression evaluation) even if another thread is reloading dialplan and has deleted ast_exten.
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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;">Testsuite test 'dialplan_stress' (https://reviewboard.asterisk.org/r/3056/) created to isolate this problem and test this fix.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> (updated)</h1>
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<li>/branches/1.8/main/pbx.c <span style="color: grey">(403615)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/3055/diff/" style="margin-left: 3em;">View Diff</a></p>
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