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Segmentation fault (access null pointer) in ext/dom/html5_serializer.c #15570
Description
Description
The following code:
<?php
$html = <<<HTML
<head>
</html>
HTML;
$dom = Dom\HTMLDocument::createFromString($html);
$a = $dom->head->firstChild->cloneNode(false);
echo $dom->saveHTML($a), "\n";Resulted in this output:
/php-src/ext/dom/html5_serializer.c:134:20: runtime error: member access within null pointer of type 'struct _xmlNode'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /php-src/ext/dom/html5_serializer.c:134:20 in
PHP Version
PHP 8.4.0-dev
Operating System
ubuntu 22.04
Activity
ndossche commentedon Aug 24, 2024
Problem is that a text node does not necessarily have a parent if it's the outer node, and this is not checked, easily fixable.
Fix phpGH-15570: Segmentation fault (access null pointer) in ext/dom/…
Fix phpGH-15570: Segmentation fault (access null pointer) in ext/dom/…