Bug 1083576

Summary: SELinux is preventing /usr/sbin/winbindd from using the 'kill' capabilities.
Product: [Fedora] Fedora Reporter: Brian J. Murrell <brian.murrell>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 20CC: dominick.grift, dwalsh, lvrabec, mgrepl, ssekidde
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:b7f80d73847fca8d31e8a3cca1908d5834ffd7d1cc79a864c7b6f06a4d781249
Fixed In Version: selinux-policy-3.12.1-153.fc20 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-04-20 01:25:22 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 Brian J. Murrell 2014-04-02 13:38:32 UTC
Description of problem:
SELinux is preventing /usr/sbin/winbindd from using the 'kill' capabilities.

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

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

Additional Information:
Source Context                system_u:system_r:winbind_t:s0
Target Context                system_u:system_r:winbind_t:s0
Target Objects                 [ capability ]
Source                        winbindd
Source Path                   /usr/sbin/winbindd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           samba-winbind-4.1.6-1.fc20.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.12.1-127.fc20.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.13.6-200.fc20.x86_64 #1 SMP Fri
                              Mar 7 17:02:28 UTC 2014 x86_64 x86_64
Alert Count                   106
First Seen                    2013-09-12 09:47:31 EDT
Last Seen                     2014-04-02 07:02:47 EDT
Local ID                      a93b5315-6b6e-452c-ae8b-e38308194b87

Raw Audit Messages
type=AVC msg=audit(1396436567.211:17915): avc:  denied  { kill } for  pid=1298 comm="winbindd" capability=5  scontext=system_u:system_r:winbind_t:s0 tcontext=system_u:system_r:winbind_t:s0 tclass=capability


type=SYSCALL msg=audit(1396436567.211:17915): arch=x86_64 syscall=kill success=no exit=EPERM a0=56e1 a1=0 a2=0 a3=49 items=0 ppid=1 pid=1298 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=4294967295 tty=(none) comm=winbindd exe=/usr/sbin/winbindd subj=system_u:system_r:winbind_t:s0 key=(null)

Hash: winbindd,winbind_t,winbind_t,capability,kill

Additional info:
reporter:       libreport-2.2.0
hashmarkername: setroubleshoot
kernel:         3.13.6-200.fc20.x86_64
type:           libreport

Potential duplicate: bug 1036193

Comment 1 Simon Sekidde 2014-04-02 13:53:24 UTC
Hi Brian, 

We have this allow rule.

 allow winbind_t winbind_t : capability { dac_override kill setuid ipc_lock sys_nice audit_write } ; 

Please add custom policy until an updated F20 policy package with this fix is available.

Comment 2 Simon Sekidde 2014-04-02 13:55:24 UTC
*** Bug 1036193 has been marked as a duplicate of this bug. ***

Comment 3 Brian J. Murrell 2014-04-02 14:15:34 UTC
(In reply to Simon Sekidde from comment #1)
> Hi Brian, 

Hi Simon,
 
> We have this allow rule.
> 
>  allow winbind_t winbind_t : capability { dac_override kill setuid ipc_lock
> sys_nice audit_write } ; 

Is there a BZ ticket that tracked this rule change?

> Please add custom policy until an updated F20 policy package with this fix
> is available.

Any ETA on when that will be available?

Comment 4 Lukas Vrabec 2014-04-02 14:26:01 UTC
I found this rule only in rawhide, so back porting to f20 and f19 branch.

F20:
commit 9c3913b9f81e3eab573dc0317178283f06288726
Author: Lukas Vrabec <lvrabec>
Date:   Wed Apr 2 16:21:56 2014 +0200

    Allow kill capability to winbind_t

F19:
commit c752931a51991a9feac74f38a1cce6bfd3c05945
Author: Lukas Vrabec <lvrabec>
Date:   Wed Apr 2 16:21:56 2014 +0200

    Allow kill capability to winbind_t

Comment 5 Fedora Update System 2014-04-08 04:49:12 UTC
selinux-policy-3.12.1-152.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/selinux-policy-3.12.1-152.fc20

Comment 6 Fedora Update System 2014-04-09 13:17:08 UTC
Package selinux-policy-3.12.1-152.fc20:
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.12.1-152.fc20'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2014-4933/selinux-policy-3.12.1-152.fc20
then log in and leave karma (feedback).

Comment 7 Fedora Update System 2014-04-14 22:42:36 UTC
Package selinux-policy-3.12.1-153.fc20:
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.12.1-153.fc20'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2014-4933/selinux-policy-3.12.1-153.fc20
then log in and leave karma (feedback).

Comment 8 Fedora Update System 2014-04-20 01:25:22 UTC
selinux-policy-3.12.1-153.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.