Don't leak encoding_str

cmb69 · cmb69 · commit f1bf4bf6eb8b · 2020-01-22T11:15:16.000+01:00
diff --git a/ext/mbstring/mbstring.c b/ext/mbstring/mbstring.c
@@ -3243,6 +3243,7 @@ PHP_FUNCTION(mb_convert_encoding)
 					} else {
 						_from_encodings = estrdup(ZSTR_VAL(encoding_str));
 					}
+					zend_string_release(encoding_str);
 				} ZEND_HASH_FOREACH_END();
 
 				if (_from_encodings != NULL && !strlen(_from_encodings)) {

Original file line number	Diff line number	Diff line change
`@@ -3243,6 +3243,7 @@ PHP_FUNCTION(mb_convert_encoding)`
`3243`	`3243`	`} else {`
`3244`	`3244`	`_from_encodings = estrdup(ZSTR_VAL(encoding_str));`
`3245`	`3245`	`}`
	`3246`	`+ zend_string_release(encoding_str);`
`3246`	`3247`	`} ZEND_HASH_FOREACH_END();`
`3247`	`3248`
`3248`	`3249`	`if (_from_encodings != NULL && !strlen(_from_encodings)) {`