krb5 commit: Set pointers to NULL after freeing them

[Zhanna A Tsitkova]

https://github.com/krb5/krb5/commit/b08dd7cbcafc4c89eda3ec7a7b416cc8cdd45cf0
commit b08dd7cbcafc4c89eda3ec7a7b416cc8cdd45cf0
Author: Zhanna Tsitkov <tsitkova at mit.edu>
Date:   Mon Oct 15 16:14:24 2012 -0400

    Set pointers to NULL after freeing them

 src/kdc/do_as_req.c  |    1 +
 src/kdc/do_tgs_req.c |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/kdc/do_as_req.c b/src/kdc/do_as_req.c
index 81db767..4ca712d 100644
--- a/src/kdc/do_as_req.c
+++ b/src/kdc/do_as_req.c
@@ -723,6 +723,7 @@ process_as_req(krb5_kdc_req *request, krb5_data *req_pkt,
         }
         setflag(state->enc_tkt_reply.flags, TKT_FLG_ANONYMOUS);
         krb5_free_principal(kdc_context, state->request->client);
+        state->request->client = NULL;
         errcode = krb5_copy_principal(kdc_context, krb5_anonymous_principal(),
                                       &state->request->client);
         if (errcode) {
diff --git a/src/kdc/do_tgs_req.c b/src/kdc/do_tgs_req.c
index e9cb421..8a6d93c 100644
--- a/src/kdc/do_tgs_req.c
+++ b/src/kdc/do_tgs_req.c
@@ -252,6 +252,7 @@ tgt_again:
                 retval = prep_reprocess_req(request, &krbtgt_princ);
                 if (!retval) {
                     krb5_free_principal(kdc_context, request->server);
+                    request->server = NULL;
                     retval = krb5_copy_principal(kdc_context, krbtgt_princ,
                                                  &(request->server));
                     if (!retval) {