Fix leak in phar open

Author: nikic

ext/phar/phar.c

@@ -1386,6 +1386,7 @@ int phar_create_or_parse_filename(char *fname, int fname_len, char *alias, int a
 	mydata = ecalloc(1, sizeof(phar_archive_data));
 	mydata->fname = expand_filepath(fname, NULL);
 	if (mydata->fname == NULL) {
+		efree(mydata);
 		return FAILURE;
 	}
 	fname_len = strlen(mydata->fname);

ext/phar/tests/bug77396.phpt

@@ -5,11 +5,11 @@ Bug #77396 Relative filename exceeding maximum path length causes null pointer d
 --FILE--
 <?php
 $path = '../' . str_repeat("x", PHP_MAXPATHLEN) . '.tar';
-$phar = new PharData($path);
+try {
+    $phar = new PharData($path);
+} catch (UnexpectedValueException $e) {
+    echo $e->getMessage(), "\n";
+}
 ?>
---EXPECTF--
-Fatal error: Uncaught UnexpectedValueException: Phar creation or opening failed in %s%ebug77396.php:%d
-Stack trace:
-#0 %s%ebug77396.php(%d): PharData->__construct(%s)
-#1 {main}
-  thrown in %s%ebug77396.php on line %d
+--EXPECT--
+Phar creation or opening failed