Bug 712744 - SELinux is preventing /usr/sbin/semodule from 'write' accesses on the file /dev/null.
Summary: SELinux is preventing /usr/sbin/semodule from 'write' accesses on the file /d...
Keywords:
Status: CLOSED DUPLICATE of bug 712741
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 15
Hardware: i386
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: setroubleshoot_trace_hash:13ae53d2167...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-06-12 23:11 UTC by Hicham HAOUARI
Modified: 2011-06-13 06:51 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-06-13 06:51:46 UTC
Type: ---


Attachments (Terms of Use)

Description Hicham HAOUARI 2011-06-12 23:11:17 UTC
SELinux is preventing /usr/sbin/semodule from 'write' accesses on the file /dev/null.

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

If you believe that semodule 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 semodule /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

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

If you want to ignore semodule 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 /usr/sbin/semodule /var/log/audit/audit.log | audit2allow -D -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                unconfined_u:system_r:semanage_t:s0-s0:c0.c1023
Target Context                unconfined_u:object_r:device_t:s0
Target Objects                /dev/null [ file ]
Source                        semodule
Source Path                   /usr/sbin/semodule
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 03:07:55 PM WEST
Last Seen                     Thu 05 May 2011 03:07:55 PM WEST
Local ID                      46165f66-2a41-4da2-9fce-c2dac1ee9ba4

Raw Audit Messages
type=AVC msg=audit(1304604475.807:116): avc:  denied  { write } for  pid=7712 comm="semodule" path="/dev/null" dev=sda1 ino=203 scontext=unconfined_u:system_r:semanage_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:device_t:s0 tclass=file


type=SYSCALL msg=audit(1304604475.807:116): arch=i386 syscall=execve success=yes exit=0 a0=966ea58 a1=966a370 a2=966a780 a3=966a370 items=0 ppid=7710 pid=7712 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=1 comm=semodule exe=/usr/sbin/semodule subj=unconfined_u:system_r:semanage_t:s0-s0:c0.c1023 key=(null)

Hash: semodule,semanage_t,device_t,file,write

audit2allow

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

audit2allow -R

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

Comment 1 Miroslav Grepl 2011-06-13 06:51:46 UTC

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


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