From: Ruben Kerkhof <ruben@rubenkerkhof.com>
Date: Tue, 30 Jun 2015 12:13:24 +0000 (+0200)
Subject: Don't access freed memory
X-Git-Tag: collectd-5.5.1~65
X-Git-Url: https://git.octo.it/?p=collectd.git;a=commitdiff_plain;h=34d88dda42c1297567f34f334156786ba9a28898

Don't access freed memory

The fields array contains pointers into the value_copy string.
---

diff --git a/src/virt.c b/src/virt.c
index 69a46071..663555b9 100644
--- a/src/virt.c
+++ b/src/virt.c
@@ -417,8 +417,8 @@ lv_config (const char *key, const char *value)
             else if (strcasecmp (fields[i], "uuid") == 0)
                 hostname_format[i] = hf_uuid;
             else {
-                sfree (value_copy);
                 ERROR (PLUGIN_NAME " plugin: unknown HostnameFormat field: %s", fields[i]);
+                sfree (value_copy);
                 return -1;
             }
         }
@@ -454,8 +454,8 @@ lv_config (const char *key, const char *value)
             else if (strcasecmp (fields[i], "uuid") == 0)
                 plugin_instance_format[i] = plginst_uuid;
             else {
-                sfree (value_copy);
                 ERROR (PLUGIN_NAME " plugin: unknown PluginInstanceFormat field: %s", fields[i]);
+                sfree (value_copy);
                 return -1;
             }
         }