Bug 654239

Summary: SELinux is preventing /usr/bin/gnome-session "signull" access .
Product: [Fedora] Fedora Reporter: Joachim Frieben <jfrieben>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 14CC: dwalsh, jfrieben, mgrepl
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard: setroubleshoot_trace_hash:b142679fc4abbe5a35afd00f4c5b28e9aa26b7c45e2ca31c1a516d6ef49517d1
Fixed In Version: selinux-policy-3.9.7-12.fc14 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-11-21 22:00:53 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 Joachim Frieben 2010-11-17 09:55:28 UTC 
Summary:

SELinux is preventing /usr/bin/gnome-session "signull" access .

Detailed Description:

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

SELinux denied access requested by gnome-session. It is not expected that this
access is required by gnome-session 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://docs.fedoraproject.org/selinux-faq-fc5/#id2961385) Please file a bug
report.

Additional Information:

Source Context                user_u:user_r:user_t:s0
Target Context                user_u:user_r:user_wm_t:s0
Target Objects                None [ process ]
Source                        gnome-session
Source Path                   /usr/bin/gnome-session
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           gnome-session-2.32.0-1.fc14
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.7-11.fc14
Selinux Enabled               True
Policy Type                   mls
Enforcing Mode                Permissive
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux (removed) 2.6.35.8-59.fc14.x86_64 #1 SMP Tue
                              Nov 16 03:32:03 UTC 2010 x86_64 x86_64
Alert Count                   1
First Seen                    Wed 17 Nov 2010 10:46:39 AM CET
Last Seen                     Wed 17 Nov 2010 10:46:39 AM CET
Local ID                      eac672b0-ed02-4276-878e-d433ab8088b2
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1289987199.587:31775): avc:  denied  { signull } for  pid=2670 comm="gnome-session" scontext=user_u:user_r:user_t:s0 tcontext=user_u:user_r:user_wm_t:s0 tclass=process

node=(removed) type=SYSCALL msg=audit(1289987199.587:31775): arch=c000003e syscall=62 success=yes exit=0 a0=a8f a1=0 a2=beefcafe a3=7fff0f4ceec0 items=0 ppid=2573 pid=2670 auid=501 uid=501 gid=100 euid=501 suid=501 fsuid=501 egid=100 sgid=100 fsgid=100 tty=(none) ses=10 comm="gnome-session" exe="/usr/bin/gnome-session" subj=user_u:user_r:user_t:s0 key=(null)



Hash String generated from  catchall,gnome-session,user_t,user_wm_t,process,signull
audit2allow suggests:

#============= user_t ==============
allow user_t user_wm_t:process signull;
Comment 1 Daniel Walsh 2010-11-17 14:30:57 UTC 
Miroslav add

	allow $3 $1_wm_t:process { signal sigchld signull };

to wm_role_template
Comment 2 Miroslav Grepl 2010-11-18 14:51:02 UTC 
Fixed in selinux-policy-3.9.7-12.fc14
Comment 3 Fedora Update System 2010-11-19 13:22:42 UTC 
selinux-policy-3.9.7-12.fc14 has been submitted as an update for Fedora 14.
https://admin.fedoraproject.org/updates/selinux-policy-3.9.7-12.fc14
Comment 4 Fedora Update System 2010-11-19 22:40:56 UTC 
selinux-policy-3.9.7-12.fc14 has been pushed to the Fedora 14 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update selinux-policy'.  You can provide feedback for this update here: https://admin.fedoraproject.org/updates/selinux-policy-3.9.7-12.fc14
Comment 5 Fedora Update System 2010-11-21 21:59:15 UTC 
selinux-policy-3.9.7-12.fc14 has been pushed to the Fedora 14 stable repository.  If problems still persist, please make note of it in this bug report.