[krbdev.mit.edu #8501] Potential use of uninitialized variable in kdc/main.c

[Will Fiveash via RT]

Looks like there is the potential for usage of an uninitialized
variable.  In https://github.com/krb5/krb5/blob/master/src/kdc/main.c
line 629 def_restrict_anon is defined but not set to a value:

krb5_boolean def_restrict_anon;

later if krb5_aprof_init() returns an error at 641:

if (!krb5_aprof_init(DEFAULT_KDC_PROFILE, KDC_PROFILE_ENV, &aprof)) {

then def_restrict_anon is still not set to a value.  Then at line 719
init_realm() is called with def_restrict_anon uninitialized:

retval = init_realm(rdatap, aprof, optarg, mkey_name,
                    menctype, def_udp_listen,
                    def_tcp_listen, manual,
            >>>>>>  def_restrict_anon, db_args,
                    no_referral, hostbased);