Bug 521442

Summary: setroubleshoot: SELinux is preventing the kdm from using potentially mislabeled files (.Xauthority-n).
Product: [Fedora] Fedora Reporter: STEVEN WARD <stevenward666>
Component: selinux-policyAssignee: Daniel Walsh <dwalsh>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: rawhideCC: dwalsh, jkubin, mgrepl
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard: setroubleshoot_trace_hash:8aaa555d97c8b11c35a41f2e2d32dd4256232cd29e27d75178bc207a1caaf745
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-09-06 19:43:33 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description STEVEN WARD 2009-09-05 22:01:52 UTC
The following was filed automatically by setroubleshoot:

Summary:

SELinux is preventing the kdm from using potentially mislabeled files
(.Xauthority-n).

Detailed Description:

[SELinux is in permissive mode. This access was not denied.]

SELinux has denied kdm access to potentially mislabeled file(s) (.Xauthority-n).
This means that SELinux will not allow kdm to use these files. It is common for
users to edit files in their home directory or tmp directories and then move
(mv) them to system directories. The problem is that the files end up with the
wrong file context which confined applications are not allowed to access.

Allowing Access:

If you want kdm to access this files, you need to relabel them using restorecon
-v '.Xauthority-n'. You might want to relabel the entire directory using
restorecon -R -v ''.

Additional Information:

Source Context                system_u:system_r:xdm_t:s0-s0:c0.c1023
Target Context                unconfined_u:object_r:xauth_home_t:s0
Target Objects                .Xauthority-n [ file ]
Source                        kdm
Source Path                   /usr/bin/kdm
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           kdm-4.3.0-11.fc12
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.28-8.fc12
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Permissive
Plugin Name                   home_tmp_bad_labels
Host Name                     (removed)
Platform                      Linux (removed) 2.6.31-0.180.rc7.git4.fc12.i686 #1
                              SMP Wed Aug 26 16:30:44 EDT 2009 i686 athlon
Alert Count                   1
First Seen                    Sat 29 Aug 2009 03:44:08 PM BST
Last Seen                     Sat 29 Aug 2009 03:44:08 PM BST
Local ID                      c3c37003-82d7-45f9-8cf6-e83e510f2710
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1251557048.655:20072): avc:  denied  { setattr } for  pid=1936 comm="kdm" name=".Xauthority-n" dev=dm-0 ino=21417 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:xauth_home_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1251557048.655:20072): arch=40000003 syscall=15 success=yes exit=0 a0=bff6ce9a a1=180 a2=bff6ce9a a3=8fee8d8 items=0 ppid=1319 pid=1936 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="kdm" exe="/usr/bin/kdm" subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null)


audit2allow suggests:

#============= xdm_t ==============
allow xdm_t xauth_home_t:file setattr;

Comment 1 Daniel Walsh 2009-09-06 19:43:33 UTC

*** This bug has been marked as a duplicate of bug 521449 ***