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Bug 1227239 - SELinux is preventing dnssec-trigger- from 'write' accesses on the sock_file system_bus_socket.
Summary: SELinux is preventing dnssec-trigger- from 'write' accesses on the sock_file ...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 22
Hardware: x86_64
OS: Unspecified
unspecified
high
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:a7b0fafad6e20005fd031e6ab2e...
: 1227406 (view as bug list)
Depends On:
Blocks: Default_Local_DNS_Resolver
TreeView+ depends on / blocked
 
Reported: 2015-06-02 08:46 UTC by Tomáš Hozza
Modified: 2015-06-11 18:38 UTC (History)
8 users (show)

Fixed In Version: selinux-policy-3.13.1-128.1.fc22
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-06-11 18:38:05 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Tomáš Hozza 2015-06-02 08:46:20 UTC 
Description of problem:
most probably, the dnssec-trigger-script was triggered by the NM dispatcher on network configuration change.
SELinux is preventing dnssec-trigger- from 'write' accesses on the sock_file system_bus_socket.

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

If you believe that dnssec-trigger- should be allowed write access on the system_bus_socket sock_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 dnssec-trigger- /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:dnssec_trigger_t:s0
Target Context                system_u:object_r:system_dbusd_var_run_t:s0
Target Objects                system_bus_socket [ sock_file ]
Source                        dnssec-trigger-
Source Path                   dnssec-trigger-
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-126.fc22.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.0.4-301.fc22.x86_64 #1 SMP Thu
                              May 21 13:10:33 UTC 2015 x86_64 x86_64
Alert Count                   1
First Seen                    2015-06-02 10:43:15 CEST
Last Seen                     2015-06-02 10:43:15 CEST
Local ID                      c8c597e4-831d-4258-b1d3-de95088a207b

Raw Audit Messages
type=AVC msg=audit(1433234595.245:559): avc:  denied  { write } for  pid=4169 comm="dnssec-trigger-" name="system_bus_socket" dev="tmpfs" ino=18212 scontext=system_u:system_r:dnssec_trigger_t:s0 tcontext=system_u:object_r:system_dbusd_var_run_t:s0 tclass=sock_file permissive=0


Hash: dnssec-trigger-,dnssec_trigger_t,system_dbusd_var_run_t,sock_file,write

Version-Release number of selected component:
selinux-policy-3.13.1-126.fc22.noarch

Additional info:
reporter:       libreport-2.5.1
hashmarkername: setroubleshoot
kernel:         4.0.4-301.fc22.x86_64
type:           libreport
Comment 1 Tomáš Hozza 2015-06-02 08:48:50 UTC 
dnssec-trigger-script is using libnm-glib Python bindings. I assume those are using the DBus underneath.
Comment 2 Miroslav Grepl 2015-06-02 10:58:03 UTC 
commit a17a18b95f9d04f5bef18d91cdbdfcc822992e3e
Author: Miroslav Grepl <mgrepl>
Date:   Tue Jun 2 12:56:45 2015 +0200

    Allow dnssec-trigger connections to the system DBUS. It uses libnm-glib Python bindings. BZ(1227239)
Comment 3 Fedora Update System 2015-06-09 14:39:35 UTC 
selinux-policy-3.13.1-128.1.fc22 has been submitted as an update for Fedora 22.
https://admin.fedoraproject.org/updates/selinux-policy-3.13.1-128.1.fc22
Comment 4 Tomáš Hozza 2015-06-09 15:32:51 UTC 
*** Bug 1227406 has been marked as a duplicate of this bug. ***
Comment 5 Fedora Update System 2015-06-10 19:11:21 UTC 
Package selinux-policy-3.13.1-128.1.fc22:
* should fix your issue,
* was pushed to the Fedora 22 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.13.1-128.1.fc22'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2015-9714/selinux-policy-3.13.1-128.1.fc22
then log in and leave karma (feedback).
Comment 6 Fedora Update System 2015-06-11 18:38:05 UTC 
selinux-policy-3.13.1-128.1.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.
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