hi,
The crash is happening in this part of the code.. file "table_iterator.c"
The" table_info = netsnmp_extract_table_info(requests)" returned for invalid
OID seems to be a NULL value and we crash in
_clone_varbind(table_info->indexes);
So can I fix this is this way?? Any suggestions please??
if (reqinfo->mode == MODE_GET ||
reqinfo->mode == MODE_GETNEXT ||
reqinfo->mode == MODE_GET_STASH ||
reqinfo->mode == MODE_SET_RESERVE1) {
/*
* Count the number of request in the list,
* so that we'll know when we're finished
*/
for(request = requests ; request; request = request->next)
request_count++;
notdone = 1;
while(notdone) {
notdone = 0;
/* find first data point */
if (!index_search) {
if (free_this_index_search) {
/* previously done */
index_search = free_this_index_search;
} else {
table_info = netsnmp_extract_table_info(requests);
if (table_info == NULL)
index_search = 0;
else
{
index_search = snmp_clone_varbind(table_info->indexes);
free_this_index_search = index_search;
}
/* setup, malloc search data: */
-----Original Message-----
From: [email protected] [mailto:[email protected]]
Sent: Monday, October 04, 2010 10:35 AM
To: [email protected]
Subject: RE: SnmpGet with multiple OID's crash!!
Any idea if we have a patch for this issue in net-snmp.
~Anup
_____________________________________________
From: Shankar, Anup
Sent: Friday, September 24, 2010 5:20 PM
To: '[email protected]'
Subject: SnmpGet with multiple OID's crash!!
Hi,,
I have used iterate.conf, for generating the mib2c code. The SNMPGet made with
muliple oids ( ie with one invalid OID) will let the SNMPD crash, with the
below trace.
Appreciate your response if this is a know issue., or faced earlier.
#0 0xb7e209f3 in netsnmp_table_iterator_helper_handler ()
from /usr/lib/libnetsnmphelpers.so.10
#1 0xb7e4809b in netsnmp_call_handler () from /usr/lib/libnetsnmpagent.so.10
#2 0xb7e48494 in netsnmp_call_next_handler ()
from /usr/lib/libnetsnmpagent.so.10
#3 0xb7e274e2 in table_helper_handler () from /usr/lib/libnetsnmphelpers.so.10
#4 0xb7e4809b in netsnmp_call_handler () from /usr/lib/libnetsnmpagent.so.10
#5 0xb7e4876e in netsnmp_call_handlers () from /usr/lib/libnetsnmpagent.so.10
#6 0xb7e3824a in handle_var_requests () from /usr/lib/libnetsnmpagent.so.10
#7 0xb7e3a000 in handle_pdu () from /usr/lib/libnetsnmpagent.so.10
#8 0xb7e3adf8 in netsnmp_handle_request () from /usr/lib/libnetsnmpagent.so.10
#9 0xb7e3bcbb in handle_snmp_packet () from /usr/lib/libnetsnmpagent.so.10
#10 0xb7d8a1fc in ?? () from /usr/lib/libnetsnmp.so.10
Thx,
Anup
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Virtualization is moving to the mainstream and overtaking non-virtualized
environment for deploying applications. Does it make network security
easier or more difficult to achieve? Read this whitepaper to separate the
two and get a better understanding.
http://p.sf.net/sfu/hp-phase2-d2d
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