[CritFix] Fix parsing of missing classes

diff --git a/src/lua/lua_common.c b/src/lua/lua_common.c
index 7bdf41b6b8824b26b6e5c88786f4b95186affc0c..b9eb59e47191530cc50692b04bb77f6c809e83c3 100644 (file)
--- a/src/lua/lua_common.c
+++ b/src/lua/lua_common.c
@@ -836,6 +836,7 @@ rspamd_lua_parse_table_arguments (lua_State *L, gint pos,
                        case 'U':
                                if (t == LUA_TNIL || t == LUA_TNONE) {
                                        failed = TRUE;
+                                       *(va_arg (ap, void **)) = NULL;
                                }
                                else if (t != LUA_TUSERDATA) {
                                        g_set_error (err,