From: Ruben Kerkhof <ruben@rubenkerkhof.com>
Date: Sat, 28 Nov 2015 17:59:17 +0000 (+0100)
Subject: mqtt: fix an out-of-bounds write
X-Git-Tag: collectd-5.6.0~562^2
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=db5881cda68a542bbdb6692036b89879edb5c7c9;p=collectd.git

mqtt: fix an out-of-bounds write

CID 37990
---

diff --git a/src/mqtt.c b/src/mqtt.c
index 7003fcc6..d6bcdce7 100644
--- a/src/mqtt.c
+++ b/src/mqtt.c
@@ -728,7 +728,7 @@ static int mqtt_config_subscriber (oconfig_item_t *ci)
             ERROR ("mqtt plugin: Unknown config option: %s", child->key);
     }
 
-    tmp = realloc (subscribers, sizeof (*subscribers) * subscribers_num);
+    tmp = realloc (subscribers, sizeof (*subscribers) * (subscribers_num + 1) );
     if (tmp == NULL)
     {
         ERROR ("mqtt plugin: realloc failed.");