Bug 1276251 - SELinux is preventing spice-vdagentd from 'getattr' accesses on the filesystem /sys/fs/cgroup.
Summary: SELinux is preventing spice-vdagentd from 'getattr' accesses on the filesyste...
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 24
Hardware: x86_64
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Lukas Vrabec
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: AcceptedBlocker AcceptedFreezeExcepti...
Keywords: Reopened
: 1317960 (view as bug list)
Depends On:
Blocks: F24AlphaFreezeException F24FinalBlocker
TreeView+ depends on / blocked
 
Reported: 2015-10-29 09:04 UTC by Joachim Frieben
Modified: 2016-03-23 16:56 UTC (History)
15 users (show)

(edit)
Clone Of:
(edit)
Last Closed: 2016-03-23 16:56:27 UTC


Attachments (Terms of Use)

Description Joachim Frieben 2015-10-29 09:04:32 UTC
Description of problem:
SELinux is preventing spice-vdagentd from 'getattr' accesses on the filesystem /sys/fs/cgroup.

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

If you believe that spice-vdagentd should be allowed getattr access on the cgroup filesystem 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 spice-vdagentd /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:vdagent_t:s0
Target Context                system_u:object_r:tmpfs_t:s0
Target Objects                /sys/fs/cgroup [ filesystem ]
Source                        spice-vdagentd
Source Path                   spice-vdagentd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-156.fc24.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.3.0-0.rc7.git1.1.fc24.x86_64 #1
                              SMP Tue Oct 27 16:50:25 UTC 2015 x86_64 x86_64
Alert Count                   1
First Seen                    2015-10-29 10:02:35 CET
Last Seen                     2015-10-29 10:02:35 CET
Local ID                      5defad19-42d3-407d-9b09-7560d6878e7c

Raw Audit Messages
type=AVC msg=audit(1446109355.534:570): avc:  denied  { getattr } for  pid=699 comm="spice-vdagentd" name="/" dev="tmpfs" ino=9622 scontext=system_u:system_r:vdagent_t:s0 tcontext=system_u:object_r:tmpfs_t:s0 tclass=filesystem permissive=0


Hash: spice-vdagentd,vdagent_t,tmpfs_t,filesystem,getattr

Version-Release number of selected component:
selinux-policy-3.13.1-156.fc24.noarch

Additional info:
reporter:       libreport-2.6.3
hashmarkername: setroubleshoot
kernel:         4.3.0-0.rc7.git1.1.fc24.x86_64
type:           libreport

Comment 1 Giulio 'juliuxpigface' 2016-02-03 21:27:32 UTC
Description of problem:
I encounter this frequently; at least on every boot, but I suspect it pops up later too.

This might be related to bug 1296150

Version-Release number of selected component:
selinux-policy-3.13.1-168.fc24.noarch

Additional info:
reporter:       libreport-2.6.3
hashmarkername: setroubleshoot
kernel:         4.5.0-0.rc1.git2.1.fc24.x86_64
type:           libreport

Comment 2 Giulio 'juliuxpigface' 2016-02-03 21:29:52 UTC
(In reply to Giulio 'juliuxpigface' from comment #1)
> Description of problem:
> I encounter this frequently; at least on every boot, but I suspect it pops
> up later too.
> 
> This might be related to bug 1296150
> 

Please disregard this description... It was not for this bug report but for another one. I apologize for the inconvenience it may have caused.

Comment 3 Petr Schindler 2016-02-16 13:41:44 UTC
Description of problem:
This selinux alert appears right after start of the system.

Version-Release number of selected component:
selinux-policy-3.13.1-171.fc24.noarch

Additional info:
reporter:       libreport-2.6.4
hashmarkername: setroubleshoot
kernel:         4.5.0-0.rc3.git3.1.fc24.x86_64
type:           libreport

Comment 4 Jan Kurik 2016-02-24 15:48:04 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 24 development cycle.
Changing version to '24'.

More information and reason for this action is here:
https://fedoraproject.org/wiki/Fedora_Program_Management/HouseKeeping/Fedora24#Rawhide_Rebase

Comment 5 Fedora Blocker Bugs Application 2016-03-06 23:40:24 UTC
Proposed as a Blocker for 24-final by Fedora user chrismurphy using the blocker tracking app because:

 This denial comes up on Workstation lives during live boot and post-install.
selinux-policy-3.13.1-176.fc24.noarch
Fedora-Workstation-Live-x86_64-24-20160305.0.iso. 

"SELinux and crash notifications
There must be no SELinux denial notifications or crash notifications on boot of or during installation from a release-blocking live image, or at first login after a default install of a release-blocking desktop. "

Pretty sure this is not an selinux-policy bug, but is systemd setting the label on /sys/fs/cgroup.

Comment 6 Kamil Páral 2016-03-07 18:11:20 UTC
Discussed at today's blocker review meeting [1]. Accepted as a Final blocker -  it's a clear violation of "There must be no SELinux denial notifications or crash notifications on boot of or during installation from a release-blocking live image, or at first login after a default install of a release-blocking desktop."

[1] https://meetbot-raw.fedoraproject.org/fedora-blocker-review/2016-03-07/

Comment 7 Lukas Vrabec 2016-03-08 14:20:25 UTC
commit f79000faf875b13dc06ef5020345eaf23396039a
Author: Lukas Vrabec <lvrabec@redhat.com>
Date:   Tue Mar 8 14:48:57 2016 +0100

    Allow spice-vdagent to getattr on tmpfs_t filesystems
    Resolves: rhbz#1276251

Comment 8 Fedora Update System 2016-03-11 09:56:12 UTC
selinux-policy-3.13.1-178.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-1350c96015

Comment 9 Fedora Update System 2016-03-11 19:25:53 UTC
selinux-policy-3.13.1-178.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-1350c96015

Comment 10 Mairi Dulaney 2016-03-15 18:59:46 UTC
*** Bug 1317960 has been marked as a duplicate of this bug. ***

Comment 11 Fedora Update System 2016-03-16 13:42:10 UTC
selinux-policy-3.13.1-179.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-8f142bb969

Comment 12 Fedora Update System 2016-03-18 14:58:44 UTC
selinux-policy-3.13.1-179.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-8f142bb969

Comment 13 Adam Williamson 2016-03-18 21:49:00 UTC
Description of problem:
Booted the F24 Alpha 1.5 Workstation x86_64 live image in a KVM, this denial appeared as soon as the desktop came up. I do notice that I can't seem to cut/paste into or out of the VM - this denial may be why?

Version-Release number of selected component:
selinux-policy-3.13.1-176.fc24.noarch

Additional info:
reporter:       libreport-2.6.4
hashmarkername: setroubleshoot
kernel:         4.5.0-0.rc7.git0.2.fc24.x86_64
type:           libreport

Comment 14 Adam Williamson 2016-03-18 21:50:40 UTC
Proposing as an Alpha freeze exception; avoiding an AVC out-of-the-box seems like a good idea, and if this would also fix copying/pasting into/out of a VM while running live, that's significant too.

Comment 15 Dennis Gilmore 2016-03-18 22:13:27 UTC
+1 FE

Comment 16 Kevin Fenzi 2016-03-18 22:15:12 UTC
Sure, +1 FE

Comment 17 Adam Williamson 2016-03-18 22:16:13 UTC
That's +3, marking accepted.

Comment 18 Adam Williamson 2016-03-19 20:26:38 UTC
The update has not yet gone stable. Please do not close the bug. If it's closed, we won't notice that it needs a stable push.

Comment 19 Fedora Update System 2016-03-23 16:54:49 UTC
selinux-policy-3.13.1-179.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.


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