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Description of problem: ksu when the target is root is not working with cache type keyring Version-Release number of selected component (if applicable): krb5-1.11.3-31.el7 How reproducible: always Steps to Reproduce: # echo Ariel > /root/.k5login # echo Ariel > /home/Ariel/.k5login # # su - ktest Last login: Wed Nov 13 09:31:01 EST 2013 on pts/0 $ $ kinit Ariel Password for Ariel: $ klist Ticket cache: KEYRING:persistent:1006:1006 Default principal: Ariel Valid starting Expires Service principal 11/13/2013 09:39:36 11/14/2013 09:39:36 krbtgt/ZMRAZ.COM renew until 11/13/2013 09:39:36 $ $ ksu Ariel -e /bin/id Authenticated Ariel Account Ariel: authorization for Ariel for execution of /bin/id successful Changing uid to Ariel (1005) uid=1005(Ariel) gid=1005(Ariel) groups=1005(Ariel) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 $ $ ksu -e /bin/id account root: authorization failed $ but $ KRB5CCNAME=FILE:/tmp/krb5cc kinit Ariel Password for Ariel: $ KRB5CCNAME=FILE:/tmp/krb5cc klist Ticket cache: FILE:/tmp/krb5cc Default principal: Ariel Valid starting Expires Service principal 11/13/2013 11:34:58 11/14/2013 11:34:58 krbtgt/ZMRAZ.COM renew until 11/13/2013 11:34:58 $ KRB5CCNAME=FILE:/tmp/krb5cc ksu -e /bin/id Authenticated Ariel Account root: authorization for Ariel for execution of /bin/id successful Changing uid to root (0) uid=0(root) gid=0(root) groups=0(root) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023