krb5_mk_ncred: clean enc_krb_cred_part before use

the early exit case can try to free enc_krb_cred_part, which will be
stack garbage. clear it before it's used.

diff --git a/lib/krb5/mk_cred.c b/lib/krb5/mk_cred.c
index ec10a8a0648d61dc1d63f2ba6e79c45986eeee93..45ece8e02f873938f233f52b8ddd53452dd1fc30 100644 (file)
--- a/lib/krb5/mk_cred.c
+++ b/lib/krb5/mk_cred.c
@@ -141,6 +141,7 @@ _krb5_mk_ncred(krb5_context context,
         ;
 
     memset (&cred, 0, sizeof(cred));
+    memset (&enc_krb_cred_part, 0, sizeof(enc_krb_cred_part));
     cred.pvno = 5;
     cred.msg_type = krb_cred;
     ALLOC_SEQ(&cred.tickets, ncreds);
@@ -148,7 +149,6 @@ _krb5_mk_ncred(krb5_context context,
         ret = krb5_enomem(context);
         goto out;
     }
-    memset (&enc_krb_cred_part, 0, sizeof(enc_krb_cred_part));
     ALLOC_SEQ(&enc_krb_cred_part.ticket_info, ncreds);
     if (enc_krb_cred_part.ticket_info.val == NULL) {
         ret = krb5_enomem(context);