fix buffer overrun

diff --git a/main/php_ini.c b/main/php_ini.c
index bceb6e59f84a73931cfc8b8b35fdf92457de9ee3..444b4ce8443057fee9c2ba2acc09a2967c7b0320 100644 (file)
--- a/main/php_ini.c
+++ b/main/php_ini.c
@@ -785,7 +785,12 @@ PHPAPI void php_ini_activate_per_dir_config(char *path, uint path_len TSRMLS_DC)
        char path_bak[MAXPATHLEN];
 #endif
 
+#if PHP_WIN32
+       /* MAX_PATH is \0-terminated, path_len == MAXPATHLEN would overrun path_bak */
+       if (path_len >= MAXPATHLEN) {
+#else
        if (path_len > MAXPATHLEN) {
+#endif
                return;
        }