- Fixed bug #52843 (Segfault when optional parameters are not passed in to mssql_connect)

NEWS

@@ -21,6 +21,8 @@
 - Fixed possible crash in mssql_fetch_batch(). (Kalle)
 - Fixed inconsistent backlog default value (-1) in FPM on many systems. (fat)
 
+- Fixed bug #52843 (Segfault when optional parameters are not passed in to
+  mssql_connect). (Felipe)
 - Fixed bug #52827 (cURL leaks handle and causes assertion error
   (CURLOPT_STDERR)). (Gustavo)
 - Fixed bug #52786 (PHP should reset section to [PHP] after ini sections).

ext/mssql/php_mssql.c

@@ -539,7 +539,7 @@ PHP_MINFO_FUNCTION(mssql)
 static void php_mssql_do_connect(INTERNAL_FUNCTION_PARAMETERS, int persistent)
 {
 	char *host = NULL, *user = NULL, *passwd = NULL;
-	int host_len, user_len, passwd_len;
+	int host_len = 0, user_len = 0, passwd_len = 0;
 	zend_bool new_link = 0;
 	char *hashed_details;
 	int hashed_details_length;