From 3c4f6737402bda058cd6e092d2605498d88cc239 Mon Sep 17 00:00:00 2001
From: t0350 <t0350.prog@gmail.com>
Date: Tue, 8 Feb 2022 20:27:29 +0800
Subject: [PATCH] panic while reading from stdin (#1529)

Co-authored-by: jietao.cjt <jietao.cjt@alibaba-inc.com>
---
 3rd/lua/lauxlib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/3rd/lua/lauxlib.c b/3rd/lua/lauxlib.c
index 27b02f9f..51cbf03e 100644
--- a/3rd/lua/lauxlib.c
+++ b/3rd/lua/lauxlib.c
@@ -1221,7 +1221,7 @@ static int cache_mode(lua_State *L) {
 LUALIB_API int luaL_loadfilex (lua_State *L, const char *filename,
                                              const char *mode) {
   int level = cache_level(L);
-  if (level == CACHE_OFF) {
+  if (level == CACHE_OFF || filename == NULL) {
     return luaL_loadfilex_(L, filename, mode);
   }
   const void * proto = load_proto(filename);