Comment 14 for bug 1998461

I'm sorry for missing this. I've added a work in progress merge request for lunar that matches the upstream version of the commit here:

https://code.launchpad.net/~lvoytek/ubuntu/+source/net-snmp/+git/net-snmp/+merge/435225

This changes one line, setting the value to NULL after jumping to the err label. From what I can tell, though, I don't think this goes far enough to fix it as this is not matched when the address variable is freed in snmpIPv4BaseDomain.c, snmpIPv6BaseDomain.c, and T022netsnmp_parse_ep_str_clib.c. So having some additional cleanup from upstream would be good.