Why does net-snmp5.5 crashes on RHEL6.1?

Issue

• Snmpd is crashing on a per day basis with following backtrace.

(gdb) bt
#0  0x00007f5726398a45 in raise () from /lib64/libc.so.6
#1  0x00007f572639a225 in abort () from /lib64/libc.so.6
#2  0x00007f57263d5dfb in __libc_message () from /lib64/libc.so.6
#3  0x00007f57264666a7 in __fortify_fail () from /lib64/libc.so.6
#4  0x00007f57264645a0 in __chk_fail () from /lib64/libc.so.6
#5  0x00007f5726464b14 in __recvfrom_chk () from /lib64/libc.so.6
#6  0x00007f5727fb9176 in smux_snmp_process () from /usr/lib64/libnetsnmpagent.so.20
#7  0x00007f5727fb99ff in var_smux () from /usr/lib64/libnetsnmpagent.so.20
#8  0x00007f5727d7c261 in netsnmp_old_api_helper () from /usr/lib64/libnetsnmphelpers.so.20
#9  0x00007f5727fb14ef in netsnmp_call_handler () from /usr/lib64/libnetsnmpagent.so.20
#10 0x00007f5727d77628 in netsnmp_bulk_to_next_helper () from /usr/lib64/libnetsnmphelpers.so.20
#11 0x00007f5727fb23ef in netsnmp_call_handlers () from /usr/lib64/libnetsnmpagent.so.20
#12 0x00007f5727fa26e1 in handle_var_requests () from /usr/lib64/libnetsnmpagent.so.20
#13 0x00007f5727fa38f0 in handle_getnext_loop () from /usr/lib64/libnetsnmpagent.so.20
#14 0x00007f5727fa67c0 in netsnmp_handle_request () from /usr/lib64/libnetsnmpagent.so.20
#15 0x00007f5727fa727a in handle_snmp_packet () from /usr/lib64/libnetsnmpagent.so.20
#16 0x00007f57260ce868 in ?? () from /usr/lib64/libnetsnmp.so.20
#17 0x00007f57260cf200 in _sess_read () from /usr/lib64/libnetsnmp.so.20
#18 0x00007f57260d0049 in snmp_sess_read2 () from /usr/lib64/libnetsnmp.so.20
#19 0x00007f57260d010b in snmp_read2 () from /usr/lib64/libnetsnmp.so.20
#20 0x00007f5728404fde in main ()
(gdb)