From 3c3ab1b4489e03ed2344014f7f99e88a7fffbc69 Mon Sep 17 00:00:00 2001
From: Ruben Kerkhof <ruben@rubenkerkhof.com>
Date: Fri, 4 Dec 2015 19:31:16 +0100
Subject: [PATCH] snmp plugin: don't read from uninitialized pointer

if the first snmp_pdu_create inside the loop returns an error,
we exit the loop with res uninitialized and then call snmp_free_pdu on it.

CID #38037
---
 src/snmp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/snmp.c b/src/snmp.c
index 0717365a..8df7edd4 100644
--- a/src/snmp.c
+++ b/src/snmp.c
@@ -1398,7 +1398,7 @@ static int csnmp_dispatch_table (host_definition_t *host, data_definition_t *dat
 static int csnmp_read_table (host_definition_t *host, data_definition_t *data)
 {
   struct snmp_pdu *req;
-  struct snmp_pdu *res;
+  struct snmp_pdu *res = NULL;
   struct variable_list *vb;
 
   const data_set_t *ds;
-- 
2.30.2