From 0cd643d7cfc21bc8b6153d42b86a71d557270988 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Sat, 10 Aug 2019 00:54:41 +0200
Subject: [PATCH] Fix debug.getinfo() argument check.

Thanks to Sergey Ostanevich.
---
 src/lj_debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lj_debug.c b/src/lj_debug.c
index a684302c..7222e2ac 100644
--- a/src/lj_debug.c
+++ b/src/lj_debug.c
@@ -440,7 +440,7 @@ int lj_debug_getinfo(lua_State *L, const char *what, lj_Debug *ar, int ext)
   GCfunc *fn;
   if (*what == '>') {
     TValue *func = L->top - 1;
-    api_check(L, tvisfunc(func));
+    if (!tvisfunc(func)) return 0;
     fn = funcV(func);
     L->top--;
     what++;