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Bug 869304 - AVC while starting VMs hosted on RHS
Summary: AVC while starting VMs hosted on RHS
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: selinux-policy
Version: 6.3
Hardware: All
OS: Linux
high
medium
Target Milestone: rc
: ---
Assignee: Miroslav Grepl
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks: 877991
TreeView+ depends on / blocked
 
Reported: 2012-10-23 14:24 UTC by Anush Shetty
Modified: 2013-02-21 08:31 UTC (History)
2 users (show)

Fixed In Version: selinux-policy-3.7.19-177.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
: 877991 (view as bug list)
Environment:
Last Closed: 2013-02-21 08:31:45 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2013:0314 0 normal SHIPPED_LIVE selinux-policy bug fix and enhancement update 2013-02-20 20:35:01 UTC

Description Anush Shetty 2012-10-23 14:24:20 UTC 
Description of problem: On RHEL 6.3 hypervisor, We saw selinux preventing qemu-kvm getattr access while starting VMs from RHEV-M hosted on RHS storage domain.

We were able to start VMs successfully though. 


Version-Release number of selected component (if applicable): 
# rpm -qa | grep vdsm
vdsm-bootstrap-4.9.6-38.0.el6_3.noarch
vdsm-4.9.6-38.0.el6_3.x86_64
vdsm-python-4.9.6-38.0.el6_3.x86_64
vdsm-cli-4.9.6-38.0.el6_3.noarch
# getsebool -a | grep fusefs
samba_share_fusefs --> off
sanlock_use_fusefs --> on
use_fusefs_home_dirs --> off
virt_use_fusefs --> on

  
# rpm -qa | grep -i selinux
libselinux-python-2.0.94-5.3.el6.x86_64
selinux-policy-3.7.19-155.el6_3.6.noarch
libselinux-2.0.94-5.3.el6.x86_64
selinux-policy-targeted-3.7.19-155.el6_3.6.noarch
libselinux-utils-2.0.94-5.3.el6.x86_64


How reproducible: Consistently

Steps to Reproduce:
1. Start a VM hosted on RHS storage domain
2.
3.
  
Actual results:

In audit.log

type=AVC msg=audit(1350997078.489:855): avc:  denied  { getattr } for  pid=10844 comm="qemu-kvm" name="/" dev=fuse ino=1 scontext=system_u:system_r:svirt_t:s0:c117,c899 tcontext=system_u:object_r:fusefs_t:s0 tclass=filesystem


Additional info:

# sestatus
SELinux status:                 enabled
SELinuxfs mount:                /selinux
Current mode:                   enforcing
Mode from config file:          enforcing
Policy version:                 24
Policy from config file:        targeted

---

sealert -a /var/log/audit/audit.log

SELinux is preventing /usr/libexec/qemu-kvm from getattr access on the filesystem /.

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

If you believe that qemu-kvm should be allowed getattr access on the  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 qemu-kvm /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp
Comment 2 Miroslav Grepl 2012-10-24 09:53:02 UTC 
It needs to be fixed. I am backporting all fixes related to virt_use_* booleans.
Comment 5 errata-xmlrpc 2013-02-21 08:31:45 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2013-0314.html
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