Bug 712743

Summary: SELinux is preventing /sbin/setfiles from 'write' accesses on the file /dev/null.
Product: [Fedora] Fedora Reporter: Hicham HAOUARI <hicham.haouari>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 15CC: dominick.grift, dwalsh, mgrepl
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard: setroubleshoot_trace_hash:5fd8af46bc373ca3edd75065965b0dd65b3f041e087361c08dc18e7d0f5d08af
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-06-13 06:51:28 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Hicham HAOUARI 2011-06-12 23:05:19 UTC
SELinux is preventing /sbin/setfiles from 'write' accesses on the file /dev/null.

*****  Plugin catchall (50.5 confidence) suggests  ***************************

If you believe that setfiles should be allowed write access on the null file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep restorecon /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

*****  Plugin leaks (50.5 confidence) suggests  ******************************

If you want to ignore setfiles trying to write access the null file, because you believe it should not need this access.
Then you should report this as a bug.  
You can generate a local policy module to dontaudit this access.
Do
# grep /sbin/setfiles /var/log/audit/audit.log | audit2allow -D -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                unconfined_u:system_r:setfiles_t:s0-s0:c0.c1023
Target Context                unconfined_u:object_r:device_t:s0
Target Objects                /dev/null [ file ]
Source                        restorecon
Source Path                   /sbin/setfiles
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           policycoreutils-2.0.86-7.fc15
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.16-21.fc15
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 2.6.38.5-22.fc15.i686 #1 SMP
                              Mon May 2 20:17:28 UTC 2011 i686 i686
Alert Count                   1
First Seen                    Thu 05 May 2011 03:10:05 PM WEST
Last Seen                     Thu 05 May 2011 03:10:05 PM WEST
Local ID                      cb2bf6d4-d3ce-4791-a3b2-673602d380a2

Raw Audit Messages
type=AVC msg=audit(1304604605.654:117): avc:  denied  { write } for  pid=7795 comm="restorecon" path="/dev/null" dev=sda1 ino=203 scontext=unconfined_u:system_r:setfiles_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:device_t:s0 tclass=file


type=SYSCALL msg=audit(1304604605.654:117): arch=i386 syscall=execve success=yes exit=0 a0=966ab90 a1=966a648 a2=966a780 a3=966a648 items=0 ppid=7710 pid=7795 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=1 comm=restorecon exe=/sbin/setfiles subj=unconfined_u:system_r:setfiles_t:s0-s0:c0.c1023 key=(null)

Hash: restorecon,setfiles_t,device_t,file,write

audit2allow

#============= setfiles_t ==============
allow setfiles_t device_t:file write;

audit2allow -R

#============= setfiles_t ==============
allow setfiles_t device_t:file write;

Comment 1 Miroslav Grepl 2011-06-13 06:51:28 UTC

*** This bug has been marked as a duplicate of bug 712741 ***