The client should forward krb5 ticket to the server only if krb5 authentication was done. Otherwise the krb5 session keys are not set properly and creating of the credentials to delegate fails. Likewise, the server should accept delegation of krb5 ticket only if the client has authenticated by means of krb5. Current code coredumps (both client and server) without this patch.
*** This bug has been marked as a duplicate of 456 ***
Mass change of RESOLVED bugs to CLOSED