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The same problem in rhel6, tested with sudo-1.8.6p3-15.el6 and sssd-1.11.6-28.el6
+++ This bug was initially created as a clone of Bug #1138576 +++

Description of problem:
sudo with sssd doesn't  work correctly with sudoOrder option. rule with the highest value in sudoOrder parameter should be used.

dn: cn=rule_allow,ou=Sudoers,dc=my-domain,dc=com
objectClass: top
objectClass: sudoRole
cn: rule_allow
sudoHost: ALL
sudoUser: userallowed
sudoCommand: /usr/bin/true
sudoOrder: 2

dn: cn=rule_deny,ou=Sudoers,dc=my-domain,dc=com
objectClass: top
objectClass: sudoRole
cn: rule_deny
sudoHost: ALL
sudoUser: userallowed
sudoCommand: !/usr/bin/true
sudoCommand: ALL
sudoOrder: 1

[test]su - userallowed -c 'sudo true'su: warning: cannot change directory to /home/userallowed: No such file or directory
Sorry, user userallowed is not allowed to execute '/bin/true' as root on rhel7.example.com. 


Version-Release number of selected component (if applicable):
sudo-1.8.6p7-11.el7
sssd-1.11.2-65.el7

How reproducible:
always

Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Ok, this one looks like a real bug from the logs. Easily fixable.

Created attachment 997008 [details]
proposed patch

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2015-1409.html