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XML-RPC: Explicitly unset the reference to the parser resource after calling xml_parser_free() to avoid memory leaks in PHP 7.0.0 or higher.

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Props procifer, ayeshrajans.
Fixes #49700.

git-svn-id: https://develop.svn.wordpress.org/trunk@48322 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Sergey Biryukov
2020-07-05 15:20:16 +00:00
parent e3df130089
commit b5b613f8bb
5 changed files with 12 additions and 0 deletions
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src/wp-includes/IXR/class-IXR-message.php
+8
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@@ -110,20 +110,28 @@ class IXR_Message
$chunk_size = apply_filters( 'xmlrpc_chunk_parsing_size', $chunk_size );
$final = false;
do {
if (strlen($this->message) <= $chunk_size) {
$final = true;
}
$part = substr($this->message, 0, $chunk_size);
$this->message = substr($this->message, $chunk_size);
if (!xml_parse($this->_parser, $part, $final)) {
xml_parser_free($this->_parser);
unset($this->_parser);
return false;
}
if ($final) {
break;
}
} while (true);
xml_parser_free($this->_parser);
unset($this->_parser);
// Grab the error messages, if any
if ($this->messageType == 'fault') {