Prevent potential buffer overflow for large value of php_cli_server_workers_max

Author: yiyuaner

sapi/cli/php_cli_server.c

@@ -2421,8 +2421,8 @@ static void php_cli_server_startup_workers(void) {
 	if (php_cli_server_workers_max > 1) {
 		zend_long php_cli_server_worker;
 
-		php_cli_server_workers = calloc(
-			php_cli_server_workers_max, sizeof(pid_t));
+		php_cli_server_workers = safe_emalloc(
+			php_cli_server_workers_max, sizeof(pid_t), 0);
 		if (!php_cli_server_workers) {
 			php_cli_server_workers_max = 1;
 			return;