Fix GH-15910: Assertion failure in ext/dom/element.c

Author: nielsdos

NEWS

@@ -5,6 +5,7 @@ PHP                                                                        NEWS
 - DOM:
   . Fix XML serializer errata: xmlns="" serialization should be allowed.
     (nielsdos)
+  . Fixed bug GH-15910 (Assertion failure in ext/dom/element.c). (nielsdos)
 
 - MBString:
   . Fixed bug GH-15824 (mb_detect_encoding(): Argument $encodings contains

ext/dom/element.c

@@ -683,7 +683,7 @@ static void dom_element_set_attribute_node_common(INTERNAL_FUNCTION_PARAMETERS,
 	dom_object *intern, *attrobj, *oldobj;
 
 	id = ZEND_THIS;
-	if (zend_parse_parameters(ZEND_NUM_ARGS(), "O", &node, dom_get_node_ce(modern)) == FAILURE) {
+	if (zend_parse_parameters(ZEND_NUM_ARGS(), "O", &node, dom_get_attr_ce(modern)) == FAILURE) {
 		RETURN_THROWS();
 	}
 

ext/dom/tests/gh15910.phpt

@@ -0,0 +1,18 @@
+--TEST--
+GH-15910 (Assertion failure in ext/dom/element.c)
+--EXTENSIONS--
+dom
+--CREDITS--
+YuanchengJiang
+--FILE--
+<?php
+$doc = new DOMDocument();
+$doc->appendChild($doc->createElement('container'));
+try {
+    $doc->documentElement->setAttributeNodeNS($doc);
+} catch (Error $e) {
+    echo $e->getMessage(), "\n";
+}
+?>
+--EXPECT--
+DOMElement::setAttributeNodeNS(): Argument #1 ($attr) must be of type DOMAttr, DOMDocument given