1 http://sourceforge.net/p/net-snmp/code/ci/4c5633f1603e4bd03ed05c37d782ec8911759c47/

     2 

     3 diff --git a/agent/mibgroup/agent/extend.c b/agent/mibgroup/agent/extend.c

     4 index 00d270a..cd0b2d6 100644

     5 --- a/agent/mibgroup/agent/extend.c

     6 +++ b/agent/mibgroup/agent/extend.c

     7 @@ -1132,7 +1132,7 @@ _extend_find_entry( netsnmp_request_info       *request,

     8               * ...and check the line requested is valid

     9               */

    10              line_idx = *table_info->indexes->next_variable->val.integer;

    11 -            if (eptr->numlines < line_idx)

    12 +            if (line_idx < 1 || line_idx > eptr->numlines)

    13                  return NULL;

    14          }

    15          return eptr;

    16 @@ -1305,6 +1305,10 @@ handle_nsExtendOutput2Table(netsnmp_mib_handler          *handler,

    17                   * Determine which line we've been asked for....

    18                   */

    19                  line_idx = *table_info->indexes->next_variable->val.integer;

    20 +                if (line_idx < 1 || line_idx > extension->numlines) {

    21 +                    netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHINSTANCE);

    22 +                    continue;

    23 +                }

    24                  cp  = extension->lines[line_idx-1];

    25  

    26                  /*