Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.
Bug 1256737 - SELinux is preventing pidof from 'getattr' accesses on the directory /proc/<pid>.
Summary: SELinux is preventing pidof from 'getattr' accesses on the directory /proc/<p...
Keywords:
Status: CLOSED NEXTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 23
Hardware: x86_64
OS: Unspecified
unspecified
urgent
Target Milestone: ---
Assignee: Lukas Vrabec
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:53b1c6a2a48b7a8c522d62a6c6e...
Depends On:
Blocks: Default_Local_DNS_Resolver
TreeView+ depends on / blocked
 
Reported: 2015-08-25 11:11 UTC by redhat
Modified: 2015-09-18 18:52 UTC (History)
10 users (show)

Fixed In Version: 3.13.1-146.fc23
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-09-18 18:52:28 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description redhat 2015-08-25 11:11:28 UTC 
Description of problem:
SELinux is preventing pidof from 'getattr' accesses on the directory /proc/<pid>.

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

If you believe that pidof should be allowed getattr access on the <pid> directory 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 pidof /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:system_r:sshd_t:s0-s0:c0.c1023
Target Objects                /proc/<pid> [ dir ]
Source                        pidof
Source Path                   pidof
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-141.fc23.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.2.0-0.rc6.git0.2.fc23.x86_64 #1
                              SMP Wed Aug 12 21:39:36 UTC 2015 x86_64 x86_64
Alert Count                   1
First Seen                    2015-08-25 13:08:59 CEST
Last Seen                     2015-08-25 13:08:59 CEST
Local ID                      0869243f-7704-4ffc-807c-0e7d4350b82a

Raw Audit Messages
type=AVC msg=audit(1440500939.68:1815): avc:  denied  { getattr } for  pid=6508 comm="pidof" path="/proc/12190" dev="proc" ino=1187739 scontext=system_u:system_r:dnssec_trigger_t:s0 tcontext=system_u:system_r:sshd_t:s0-s0:c0.c1023 tclass=dir permissive=0


Hash: pidof,dnssec_trigger_t,sshd_t,dir,getattr

Version-Release number of selected component:
selinux-policy-3.13.1-141.fc23.noarch

Additional info:
reporter:       libreport-2.6.2
hashmarkername: setroubleshoot
kernel:         4.2.0-0.rc6.git0.2.fc23.x86_64
type:           libreport
Comment 1 Miroslav Grepl 2015-08-27 17:18:08 UTC 
Is this expected?
Comment 2 Tomáš Hozza 2015-08-28 07:57:00 UTC 
Yes, it is. Please see Bug #1242578.

Unfortunately since we don't have better way to get NetworkManager's PID, we call 'pidof NetworkManager' and then send signal to it.
Comment 3 Tomáš Hozza 2015-08-31 07:26:14 UTC 
increasing severity, since SELinux is blocking basic functionality in dnssec-trigger by not allowing to get PID of NetworkManager
Comment 4 Lukas Vrabec 2015-08-31 11:58:35 UTC 
commit 48a5464232fe9ff4b06b37fe48bce45e2f9114ec
Author: Lukas Vrabec <lvrabec>
Date:   Mon Aug 31 13:44:54 2015 +0200

    Allow dnssec-trigger to exec pidof. BZ(#1256737)
Comment 5 Fedora Update System 2015-09-03 09:52:56 UTC 
selinux-policy-3.13.1-146.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report.\nIf you want to test the update, you can install it with \n su -c 'yum --enablerepo=updates-testing update selinux-policy'. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-14826
Comment 6 Fedora Update System 2015-09-18 18:51:35 UTC 
selinux-policy-3.13.1-146.fc23 has been pushed to the Fedora 23 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.