memory leak in krb5_get_init_creds_keytab in 1.10.2 ?

[Markus Moeller]

Hi,

I call krb5_get_init_creds_keytab in my application and  valgrind tells me 
about a leak ( see below ) . It seems to be the memory allocation for 
mod-modreq_p, which I think I can't clear from my application, can I ?

for (i = 0; i < context->preauth_context->n_modules; i++) {
    context->preauth_context->modules[i].use_count = 0;
    mod = &context->preauth_context->modules[i];
    if (mod->client_req_init != NULL)
        mod->client_req_init(context, mod->moddata, mod->modreq_p);     << 
line 287
}


> rpm -q krb5
krb5-1.10.2-10.22.1.x86_64

==14734== 557 (48 direct, 509 indirect) bytes in 1 blocks are definitely 
lost in loss record 586 of 630
==14734==    at 0x4C2C27B: malloc (in 
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==14734==    by 0x8898E99: ???
==14734==    by 0x5D875D1: krb5_preauth_request_context_init 
(preauth2.c:287)
==14734==    by 0x5D79A55: restart_init_creds_loop (get_in_tkt.c:716)
==14734==    by 0x5D7A4C4: krb5_init_creds_init (get_in_tkt.c:1007)
==14734==    by 0x5D7C226: krb5int_get_init_creds (get_in_tkt.c:1635)
==14734==    by 0x5D7C710: krb5_get_init_creds_keytab (gic_keytab.c:135)
==14734==    by 0x406456: krb5_create_cache(char*) (support_krb5.cc:270)
==14734==    by 0x408A90: get_memberof(main_args*, char*, char*, char*) 
(support_ldap.cc:869)
==14734==    by 0x4056A1: check_memberof(main_args*, char*, char*) 
(support_member.cc:115)
==14734==    by 0x403176: main (kerberos_ldap_group.cc:400)

Is this a known issue ?

Thank you
Markus