Merge branch 'PHP-8.3' into PHP-8.4

* PHP-8.3:
  Fix GH-20009: XMLReader leak on RelaxNG schema failure

Author: nielsdos

NEWS

@@ -53,6 +53,9 @@ PHP                                                                        NEWS
   . Fixed bug GH-19801 (leaks in var_dump() and debug_zval_dump()).
     (alexandre-daubois)
 
+- XMLReader:
+  . Fixed bug GH-20009 (XMLReader leak on RelaxNG schema failure). (nielsdos)
+
 - Zip:
   . Fixed bug GH-19688 (Remove pattern overflow in zip addGlob()). (nielsdos)
   . Fixed bug GH-19932 (Memory leak in zip setEncryptionName()/setEncryptionIndex()).

ext/xmlreader/php_xmlreader.c

@@ -542,6 +542,7 @@ static void php_xmlreader_set_relaxng_schema(INTERNAL_FUNCTION_PARAMETERS, int t
 
 			RETURN_TRUE;
 		} else {
+			xmlRelaxNGFree(schema);
 			php_error_docref(NULL, E_WARNING, "Schema contains errors");
 			RETURN_FALSE;
 		}