diff -up net-snmp-5.7.2/agent/mibgroup/agent/extend.c.orig net-snmp-5.7.2/agent/mibgroup/agent/extend.c

--- net-snmp-5.7.2/agent/mibgroup/agent/extend.c.orig	2013-07-09 17:12:14.169821974 +0200

+++ net-snmp-5.7.2/agent/mibgroup/agent/extend.c	2013-07-09 17:12:39.885729685 +0200

@@ -1463,8 +1463,8 @@ char * _get_cmdline(netsnmp_extend *exte

     if (args == NULL)

         /* Use empty string for processes without arguments. */

         args = "";

-    

-    size = strlen(extend->command) + strlen(extend->args) + 2;

+

+    size = strlen(extend->command) + strlen(args) + 2;

     if (size > cmdlinesize) {

         newbuf = realloc(cmdlinebuf, size);

 	if (!newbuf) {