Bug 679729

Summary: SELinux is preventing /sbin/cgconfigparser from using the 'sys_tty_config' capabilities.
Product: [Fedora] Fedora Reporter: Matěj Cepl <mcepl>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 15CC: dwalsh, mcepl, mgrepl
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard: setroubleshoot_trace_hash:b310340f477fc95fd6337147b8215631861c665ac3cbe0e3f02e4864d2240ec6
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-08-07 20:27:13 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
screenshot of the screen with the error message none

Description Matěj Cepl 2011-02-23 11:08:22 UTC
SELinux is preventing /sbin/cgconfigparser from using the 'sys_tty_config' capabilities.

When starting computer I've got this error (see attached screenshot) which probably correspond to this AVC denial.

*****  Plugin catchall (100. confidence) suggests  ***************************

If you believe that cgconfigparser should have the sys_tty_config capability 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 cgconfigparser /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:cgconfig_t:s0
Target Context                system_u:system_r:cgconfig_t:s0
Target Objects                Unknown [ capability ]
Source                        cgconfigparser
Source Path                   /sbin/cgconfigparser
Port                          <Neznámé>
Host                          (removed)
Source RPM Packages           libcgroup-0.37-3.fc15
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.15-1.fc16
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 2.6.38-0.rc5.git1.1.fc15.x86_64 #1
                              SMP Thu Feb 17 01:49:02 UTC 2011 x86_64 x86_64
Alert Count                   1
First Seen                    St 23. únor 2011, 11:53:42 CET
Last Seen                     St 23. únor 2011, 11:53:42 CET
Local ID                      eba6cf4c-129c-4ed1-8ad7-19766542165b

Raw Audit Messages
type=AVC msg=audit(1298458422.736:71): avc:  denied  { sys_tty_config } for  pid=1714 comm="cgconfigparser" capability=26  scontext=system_u:system_r:cgconfig_t:s0 tcontext=system_u:system_r:cgconfig_t:s0 tclass=capability


type=SYSCALL msg=audit(1298458422.736:71): arch=x86_64 syscall=ioctl success=yes exit=0 a0=1 a1=5401 a2=7ffffe2e6e18 a3=0 items=0 ppid=1710 pid=1714 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=cgconfigparser exe=/sbin/cgconfigparser subj=system_u:system_r:cgconfig_t:s0 key=(null)

Hash: cgconfigparser,cgconfig_t,cgconfig_t,capability,sys_tty_config

audit2allow

#============= cgconfig_t ==============
allow cgconfig_t self:capability sys_tty_config;

audit2allow -R

#============= cgconfig_t ==============
allow cgconfig_t self:capability sys_tty_config;

Comment 1 Matěj Cepl 2011-02-23 11:11:12 UTC
Created attachment 480416 [details]
screenshot of the screen with the error message

What's interesting is that /etc/cgconfig.conf is completely commented out. Restorecon doesn't do anything to the file and it is

jakoubek:~ $ ls -lZ /etc/cgconfig.conf 
-rw-r--r--. root root system_u:object_r:cgconfig_etc_t:s0 /etc/cgconfig.conf
jakoubek:~ $

Comment 2 Miroslav Grepl 2011-02-23 11:31:10 UTC
allow cgconfig_t self:capability sys_tty_config;

should be fixed in the latest policy.

Comment 3 Fedora End Of Life 2012-08-07 20:27:15 UTC
This message is a notice that Fedora 15 is now at end of life. Fedora
has stopped maintaining and issuing updates for Fedora 15. It is
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