Bug 552012

Summary: SELinux is preventing /bin/cat "read" access on /var/run/syslogd.pid.
Product: [Fedora] Fedora Reporter: Retlaw Dlawso <boeuf32>
Component: selinux-policyAssignee: Daniel Walsh <dwalsh>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 12CC: dwalsh, mgrepl
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard: setroubleshoot_trace_hash:4cafbb4e14de57818978c4da02afc567d4d89d47e629d28aa3f42c011dbeb8d0
Fixed In Version: 3.6.32-66.fc12 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-01-08 20:12:44 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 Retlaw Dlawso 2010-01-03 16:20:11 UTC 
Summary:

SELinux is preventing /bin/cat "read" access on /var/run/syslogd.pid.

Detailed Description:

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

SELinux denied access requested by cat. It is not expected that this access is
required by cat 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:logrotate_t:s0-s0:c0.c1023
Target Context                system_u:object_r:var_run_t:s0
Target Objects                /var/run/syslogd.pid [ lnk_file ]
Source                        cat
Source Path                   /bin/cat
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           coreutils-7.6-8.fc12
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.32-59.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux (removed)
                              2.6.31.9-174.fc12.x86_64 #1 SMP Mon Dec 21
                              05:33:33 UTC 2009 x86_64 x86_64
Alert Count                   1
First Seen                    Sun 03 Jan 2010 10:41:11 AM CET
Last Seen                     Sun 03 Jan 2010 10:41:11 AM CET
Local ID                      9e86ee21-e8f3-4aa2-aa7d-b1d825d8b7d9
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1262511671.613:29696): avc:  denied  { read } for  pid=8806 comm="cat" name="syslogd.pid" dev=dm-3 ino=852 scontext=system_u:system_r:logrotate_t:s0-s0:c0.c1023 tcontext=system_u:object_r:var_run_t:s0 tclass=lnk_file

node=(removed) type=SYSCALL msg=audit(1262511671.613:29696): arch=c000003e syscall=2 success=yes exit=4 a0=7fff96a9cf42 a1=0 a2=7fff96a9b990 a3=a items=0 ppid=8805 pid=8806 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=2 comm="cat" exe="/bin/cat" subj=system_u:system_r:logrotate_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  selinux-policy-3.6.32-59.fc12,catchall,cat,logrotate_t,var_run_t,lnk_file,read
audit2allow suggests:
audit2allow is not installed.
Comment 1 Daniel Walsh 2010-01-04 15:26:33 UTC 
Why is /var/run/syslogd.pid a symbolic link?  This looks like a local customization.

Although I see nothing with allowing this.


You can add these rules for now using

# grep avc /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Fixed in selinux-policy-3.6.32-66.fc12.noarch
Comment 2 Fedora Update System 2010-01-04 21:56:11 UTC 
selinux-policy-3.6.32-66.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-66.fc12
Comment 3 Fedora Update System 2010-01-05 22:52:17 UTC 
selinux-policy-3.6.32-66.fc12 has been pushed to the Fedora 12 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: http://admin.fedoraproject.org/updates/F12/FEDORA-2010-0184
Comment 4 Retlaw Dlawso 2010-01-06 08:17:24 UTC 
update and restart successful, under SELINUX no alerts to view
Comment 5 Fedora Update System 2010-01-08 20:07:02 UTC 
selinux-policy-3.6.32-66.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.