Merge branch 'PHP-8.3'

* PHP-8.3:
  [ci skip] NEWS
  Fix null pointer dereferences in case of allocation failure

Author: nielsdos

ext/dom/document.c

@@ -1157,6 +1157,9 @@ char *_dom_get_valid_file_path(char *source, char *resolved_path, int resolved_p
 	int isFileUri = 0;
 
 	uri = xmlCreateURI();
+	if (uri == NULL) {
+		return NULL;
+	}
 	escsource = xmlURIEscapeStr((xmlChar *) source, (xmlChar *) ":");
 	xmlParseURIReference(uri, (char *) escsource);
 	xmlFree(escsource);

ext/xmlreader/php_xmlreader.c

@@ -212,6 +212,9 @@ char *_xmlreader_get_valid_file_path(char *source, char *resolved_path, int reso
 	int isFileUri = 0;
 
 	uri = xmlCreateURI();
+	if (uri == NULL) {
+		return NULL;
+	}
 	escsource = xmlURIEscapeStr((xmlChar *)source, (xmlChar *)":");
 	xmlParseURIReference(uri, (const char *)escsource);
 	xmlFree(escsource);

ext/xmlwriter/php_xmlwriter.c

@@ -109,6 +109,9 @@ static char *_xmlwriter_get_valid_file_path(char *source, char *resolved_path, i
 	int isFileUri = 0;
 
 	uri = xmlCreateURI();
+	if (uri == NULL) {
+		return NULL;
+	}
 	escsource = xmlURIEscapeStr((xmlChar *)source, (xmlChar *) ":");
 	xmlParseURIReference(uri, (char *)escsource);
 	xmlFree(escsource);