Re: Lua [in]security and the distributors

[Enrico Tassi <gares@...>]

On Tue, Aug 26, 2014 at 04:37:19PM +0200, Enrico Tassi wrote:
> help is welcome.  In particular, the attached patch changes the argument

Here it is,
-- 
Enrico Tassi

From: Enrico Tassi <gareuselesinge@debian.org>
Date: Tue, 26 Aug 2014 16:20:55 +0200
Subject: Fix stack overflow in vararg functions

---
 src/ldo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ldo.c b/src/ldo.c
index d1bf786..30333bf 100644
--- a/src/ldo.c
+++ b/src/ldo.c
@@ -274,7 +274,7 @@ int luaD_precall (lua_State *L, StkId func, int nresults) {
     CallInfo *ci;
     StkId st, base;
     Proto *p = cl->p;
-    luaD_checkstack(L, p->maxstacksize);
+    luaD_checkstack(L, p->maxstacksize + p->numparams);
     func = restorestack(L, funcr);
     if (!p->is_vararg) {  /* no varargs? */
       base = func + 1;