Bug 657268 - udevcontrol does not work when MLS policy is in enforcing mode
Summary: udevcontrol does not work when MLS policy is in enforcing mode
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: selinux-policy
Version: 5.6
Hardware: All
OS: Linux
low
medium
Target Milestone: rc
: ---
Assignee: Miroslav Grepl
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-11-25 10:56 UTC by Milos Malik
Modified: 2012-10-15 14:26 UTC (History)
1 user (show)

Fixed In Version: selinux-policy-2.4.6-296.el5
Doc Type: Bug Fix
Doc Text:
Due to the SELinux MLS policy, the udevcontrol command failed to run, and a denial message was written to the audit log. With this update, this issue has been resolved, and SELinux no longer prevents udevcontrol from running.
Clone Of:
Environment:
Last Closed: 2011-01-13 21:51:32 UTC
Target Upstream Version:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2011:0026 0 normal SHIPPED_LIVE selinux-policy bug fix and enhancement update 2011-01-12 16:11:15 UTC

Description Milos Malik 2010-11-25 10:56:28 UTC
Description of problem:


Version-Release number of selected component (if applicable):
selinux-policy-2.4.6-295.el5
selinux-policy-targeted-2.4.6-295.el5
selinux-policy-minimum-2.4.6-295.el5
selinux-policy-mls-2.4.6-295.el5
selinux-policy-strict-2.4.6-295.el5
selinux-policy-devel-2.4.6-295.el5

How reproducible:
always

Steps to Reproduce:
(machine is in runlevel 1, root is logged in via console)
# id -Z
system_u:system_r:sysadm_t:s0-s15:c0.c1023
# setenforce 0
# udevcontrol reload_rules
# echo $?
0
# setenforce 1
# udevcontrol reload_rules
# echo $?
1
#
  
Actual results:
type=1400 audit(1290682404.975:14): avc:  denied  { sendto } for  pid=3280 comm="udevcontrol" path=002F6F72672F6B65726E656C2F756465762F7564657664 scontext=system_u:system_r:sysadm_t:s0-s15:c0.c1023 tcontext=system_u:system_r:udev_t:s0-s15:c0.c1023 tclass=unix_dgram_socket

Expected results:
no AVCs

Comment 1 Milos Malik 2010-11-25 14:12:35 UTC
Seen in permissive mode:

type=1400 audit(1290694297.572:202): avc:  denied  { sendto } for  pid=8422 comm="udevcontrol" path=002F6F72672F6B65726E656C2F756465762F7564657664 scontext=system_u:system_r:sysadm_t:s0-s15:c0.c1023 tcontext=system_u:system_r:udev_t:s0-s15:c0.c1023 tclass=unix_dgram_socket
type=1300 audit(1290694297.572:202): arch=c000003e syscall=44 success=yes exit=2596 a0=3 a1=2adc6a62c380 a2=a24 a3=0 items=0 ppid=8385 pid=8422 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=ttyS1 ses=4294967295 comm="udevcontrol" exe="/sbin/udevcontrol" subj=system_u:system_r:sysadm_t:s0-s15:c0.c1023 key=(null)

Comment 3 Miroslav Grepl 2010-11-30 09:32:01 UTC
Fixed in selinux-policy-2.4.6-296.el5

Comment 6 Jaromir Hradilek 2011-01-05 16:29:03 UTC
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Due to the SELinux MLS policy, the udevcontrol command failed to run, and a denial message was written to the audit log. With this update, this issue has been resolved, and SELinux no longer prevents udevcontrol from running.

Comment 8 errata-xmlrpc 2011-01-13 21:51:32 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0026.html


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