--- a/ext/zip/php_zip.c
+++ b/ext/zip/php_zip.c
@@ -162,6 +162,9 @@ static int php_zip_extract_file(struct z
 	 */
 	virtual_file_ex(&new_state, file, NULL, CWD_EXPAND);
 	path_cleaned =  php_zip_make_relative_path(new_state.cwd, new_state.cwd_length);
+	if(!path_cleaned) {
+		return 0;
+	}
 	path_cleaned_len = strlen(path_cleaned);
 
 	if (path_cleaned_len >= MAXPATHLEN || zip_stat(za, file, 0, &sb) != 0) {