From: Matthew Nicholson <mnicholson@digium.com>
Date: Fri, 21 Oct 2011 16:41:59 +0000 (+0000)
Subject: only process args that exist
X-Git-Tag: 1.8.9.0-rc1~130
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a16caab0e0720d9906783106650e3181bbaee443;p=thirdparty%2Fasterisk.git

only process args that exist

ASTERISK-18395


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@341809 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/pbx/pbx_lua.c b/pbx/pbx_lua.c
index 378826c3c6..f302041f0b 100644
--- a/pbx/pbx_lua.c
+++ b/pbx/pbx_lua.c
@@ -599,7 +599,7 @@ static void lua_concat_args(lua_State *L, int start, int nargs) {
 	int concat = 0;
 	int i = start + 1;
 
-	if (!lua_isnil(L, start)) {
+	if (start <= nargs && !lua_isnil(L, start)) {
 		lua_pushvalue(L, start);
 		concat += 1;
 	}