Bug 547933

Summary: SELinux is preventing /usr/libexec/gdm-session-worker "write" access on /root.
Product: [Fedora] Fedora Reporter: efreeti <neoh.ys>
Component: selinux-policyAssignee: Daniel Walsh <dwalsh>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 12CC: dwalsh, mgrepl, neoh.ys
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard: setroubleshoot_trace_hash:5ad0cc54356fc6a982190ff053b7765e5874af018b7dd86b623fd8ad596785d2
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-12-16 13:57:26 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 efreeti 2009-12-16 01:48:07 UTC
Summary:

SELinux is preventing /usr/libexec/gdm-session-worker "write" access on /root.

Detailed Description:

SELinux denied access requested by gdm-session-wor. It is not expected that this
access is required by gdm-session-wor and this access may signal an intrusion
attempt. It is also possible that the specific version or configuration of the
application is causing it to require additional access.

Allowing Access:

You can generate a local policy module to allow this access - see FAQ
(http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Please file a bug
report.

Additional Information:

Source Context                system_u:system_r:xdm_t:s0-s0:c0.c1023
Target Context                system_u:object_r:admin_home_t:s0
Target Objects                /root [ dir ]
Source                        gdm-session-wor
Source Path                   /usr/libexec/gdm-session-worker
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           gdm-2.28.1-25.fc12
Target RPM Packages           filesystem-2.4.30-2.fc12
Policy RPM                    selinux-policy-3.6.32-55.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux (removed)
                              2.6.31.5-127.fc12.i686.PAE #1 SMP Sat Nov 7
                              21:25:57 EST 2009 i686 i686
Alert Count                   2
First Seen                    Wed 16 Dec 2009 12:11:20 AM MYT
Last Seen                     Wed 16 Dec 2009 12:11:20 AM MYT
Local ID                      269d9005-f0cd-4ca3-9832-c2620d9028bb
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1260893480.391:12129): avc:  denied  { write } for  pid=18996 comm="gdm-session-wor" name="root" dev=sda1 ino=98113 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:admin_home_t:s0 tclass=dir

node=(removed) type=SYSCALL msg=audit(1260893480.391:12129): arch=40000003 syscall=5 success=no exit=-13 a0=8a7de20 a1=80c2 a2=180 a3=1e items=0 ppid=18908 pid=18996 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=18 comm="gdm-session-wor" exe="/usr/libexec/gdm-session-worker" subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  selinux-policy-3.6.32-55.fc12,catchall,gdm-session-wor,xdm_t,admin_home_t,dir,write
audit2allow suggests:

#============= xdm_t ==============
allow xdm_t admin_home_t:dir write;

Comment 1 Daniel Walsh 2009-12-16 13:57:26 UTC
Do not use SELinux if you are logging in as root,  we can not fix this.

*** This bug has been marked as a duplicate of bug 543970 ***