The TGS code was not freeing authdata. This is an old leak which was

made more evident in 1.8 by the addition of ad-signedpath authdata
appearing in most tickets issued through the TGS path.

ticket: 6659
target_version: 1.8
tags: pullup

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@23735 dc483132-0cff-0310-8789-dd5450dbe970

diff --git a/src/kdc/do_tgs_req.c b/src/kdc/do_tgs_req.c
index 44b5791bc143d96460d57a665308988e0f4b2366..f80827690143bac730a5970fe87dc03ca37bc957 100644 (file)
--- a/src/kdc/do_tgs_req.c
+++ b/src/kdc/do_tgs_req.c
@@ -136,6 +136,7 @@ process_tgs_req(krb5_data *pkt, const krb5_fulladdr *from,
 
     reply.padata = 0; /* For cleanup handler */
     reply_encpart.enc_padata = 0;
+    enc_tkt_reply.authorization_data = NULL;
     e_data.data = NULL;
 
     session_key.contents = NULL;
@@ -726,8 +727,6 @@ tgt_again:
         }
     }
 
-    enc_tkt_reply.authorization_data = NULL;
-
     if (isflagset(c_flags, KRB5_KDB_FLAG_PROTOCOL_TRANSITION) &&
         !isflagset(c_flags, KRB5_KDB_FLAG_CROSS_REALM))
         enc_tkt_reply.client = s4u_x509_user->user_id.user;
@@ -1045,6 +1044,8 @@ cleanup:
         krb5_free_pa_data(kdc_context, reply.padata);
     if (reply_encpart.enc_padata)
         krb5_free_pa_data(kdc_context, reply_encpart.enc_padata);
+    if (enc_tkt_reply.authorization_data != NULL)
+        krb5_free_authdata(kdc_context, enc_tkt_reply.authorization_data);
     krb5_free_data_contents(kdc_context, &e_data);
 
     return retval;