svn rev #19197: branches/krb5-1-6/ src/lib/krb5/krb/

[tlyu@MIT.EDU]

Commit By: tlyu
Log Message: 
ticket: 5454
version_fixed: 1.6.1

pull up r19195 from trunk

 r19195 at cathode-dark-space:  jaltman | 2007-02-28 20:49:11 -0500
 ticket: new
 subject: krb5_get_cred_from_kdc fails to null terminate the tgt list
 tags: pullup
 
 	if the next tgt in a cross-realm traversal cannot be
 	obtained find_nxt_kdc() was calling krb5_free_creds()
 	on the last tgt in the list but was failing to nullify
 	the pointer to the cred that was just freed.
 
 	if there were no additional tgts obtained, 
 	krb5_get_cred_from_kdc() would return a non-NULL terminated
 	cred list to the caller.  This would result in a crash 
 	when attempting to manipulate the non-existent cred past
 	the end of the list.
 
 	This commit nullifies the credential pointer in 
 	find_nxt_kdc() after the call to krb5_free_creds()
 	
 
 




Changed Files:
_U  branches/krb5-1-6/
U   branches/krb5-1-6/src/lib/krb5/krb/gc_frm_kdc.c