Bug 887028 - SELinux is preventing /usr/bin/bash from using the 'signal' accesses on a process.
Summary: SELinux is preventing /usr/bin/bash from using the 'signal' accesses on a pro...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 17
Hardware: x86_64
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:8fb3869b2b2a34bd707d24cd700...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-12-13 21:29 UTC by Till Maas
Modified: 2013-01-07 04:04 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-01-07 04:04:23 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Till Maas 2012-12-13 21:29:22 UTC
Description of problem:
I uninstalled and installed munin.
SELinux is preventing /usr/bin/bash from using the 'signal' accesses on a process.

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

If sie denken, dass es bash standardmäßig erlaubt sein sollte, signal Zugriff auf services_munin_plugin_t Prozesse zu erhalten.
Then sie sollten dies als Fehler melden.
Um diesen Zugriff zu erlauben, können Sie ein lokales Richtlinien-Modul erstellen.
Do
zugriff jetzt erlauben, indem Sie die nachfolgenden Befehle ausführen:
# grep http_loadtime /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:services_munin_plugin_t:s0
Target Context                system_u:system_r:services_munin_plugin_t:s0
Target Objects                 [ process ]
Source                        http_loadtime
Source Path                   /usr/bin/bash
Port                          <Unbekannt>
Host                          (removed)
Source RPM Packages           bash-4.2.39-2.fc17.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.10.0-161.fc17.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.6.9-2.fc17.x86_64 #1 SMP Tue Dec
                              4 13:26:04 UTC 2012 x86_64 x86_64
Alert Count                   2
First Seen                    2012-12-13 22:25:57 CET
Last Seen                     2012-12-13 22:25:57 CET
Local ID                      0a9eeec5-d4ec-4ee8-8c1b-617b9baf75d9

Raw Audit Messages
type=AVC msg=audit(1355433957.315:8849): avc:  denied  { signal } for  pid=31711 comm="http_loadtime" scontext=system_u:system_r:services_munin_plugin_t:s0 tcontext=system_u:system_r:services_munin_plugin_t:s0 tclass=process


type=SYSCALL msg=audit(1355433957.315:8849): arch=x86_64 syscall=kill success=no exit=EACCES a0=7bdf a1=1 a2=0 a3=7fffd97fdb80 items=0 ppid=31698 pid=31711 auid=4294967295 uid=99 gid=99 euid=99 suid=99 fsuid=99 egid=99 sgid=99 fsgid=99 tty=(none) ses=4294967295 comm=http_loadtime exe=/usr/bin/bash subj=system_u:system_r:services_munin_plugin_t:s0 key=(null)

Hash: http_loadtime,services_munin_plugin_t,services_munin_plugin_t,process,signal

audit2allow

#============= services_munin_plugin_t ==============
allow services_munin_plugin_t self:process signal;

audit2allow -R

#============= services_munin_plugin_t ==============
allow services_munin_plugin_t self:process signal;


Additional info:
hashmarkername: setroubleshoot
kernel:         3.6.9-2.fc17.x86_64
type:           libreport

Comment 1 Miroslav Grepl 2012-12-14 09:41:46 UTC
Added.

commit fb3541bac2d481b64b27521cecb2b682829ea807
Author: Miroslav Grepl <mgrepl>
Date:   Fri Dec 14 10:39:07 2012 +0100

    Allow munin plugins to send a signal to itself

Comment 2 Fedora Update System 2012-12-17 18:44:34 UTC
selinux-policy-3.10.0-165.fc17 has been submitted as an update for Fedora 17.
https://admin.fedoraproject.org/updates/selinux-policy-3.10.0-165.fc17

Comment 3 Fedora Update System 2012-12-18 02:40:55 UTC
Package selinux-policy-3.10.0-165.fc17:
* should fix your issue,
* was pushed to the Fedora 17 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.10.0-165.fc17'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2012-20544/selinux-policy-3.10.0-165.fc17
then log in and leave karma (feedback).

Comment 4 Fedora Update System 2013-01-05 06:46:00 UTC
Package selinux-policy-3.10.0-166.fc17:
* should fix your issue,
* was pushed to the Fedora 17 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.10.0-166.fc17'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2012-20544/selinux-policy-3.10.0-166.fc17
then log in and leave karma (feedback).

Comment 5 Fedora Update System 2013-01-07 04:04:24 UTC
selinux-policy-3.10.0-166.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.


Note You need to log in before you can comment on or make changes to this bug.