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Bug 1028962 - Running domain may disappear after libvirtd is restarted when selinux security driver is disabled and didn't enable the model='selinux' in guest's xml
Summary: Running domain may disappear after libvirtd is restarted when selinux securit...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: libvirt
Version: 7.0
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Michal Privoznik
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 1027096
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-11-11 11:02 UTC by Michal Privoznik
Modified: 2014-06-18 00:58 UTC (History)
9 users (show)

Fixed In Version: libvirt-1.1.1-13.el7
Doc Type: Bug Fix
Doc Text:
Clone Of: 1027096
Environment:
Last Closed: 2014-06-13 09:44:45 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Michal Privoznik 2013-11-11 11:02:30 UTC 
+++ This bug was initially created as a clone of Bug #1027096 +++

Description of problem:
Running domain may disappear after libvirtd is restarted when selinux security driver is disabled and didn't enable the model='selinux' in guest's xml

Version-Release number of selected component (if applicable):
libvirt-0.10.2-29.el6.x86_64
qemu-kvm-rhev-0.12.1.2-2.415.el6.x86_64
kernel-2.6.32-425.el6.x86_64

How reproducible:
100%

Steps to Reproduce:
1. set security_driver = "none" in /etc/libvirt/qemu.conf

2. restart libvirtd service

3. start a domain which contains <seclabel type='dynamic' relabel='yes'/> in its XML configuration,
   here we didn't configure the model='selinux' in guest's xml

4. restart libvirtd

5. domain is lost

Actual results:
Running domain may disappear after libvirtd is restarted when selinux security driver is disabled and didn't enable the model='selinux' in guest's xml

Expected results:
While the seclabel element in guest's xml didn't inculde the model='selinux',
if the selinux allow the guest to start , the guest shouldn't disappear while restart the libvirtd service , if the selinux disallow the guest to start, it should report a proper error while we start the guest

Additional info:

--- Additional comment from Dave Allan on 2013-11-06 22:05:30 CET ---

See also Bug 947387

--- Additional comment from Michal Privoznik on 2013-11-11 11:48:54 CET ---

Patch has been proposed upstream:

https://www.redhat.com/archives/libvir-list/2013-November/msg00313.html
Comment 1 Michal Privoznik 2013-11-11 16:13:30 UTC 
Moving to POST:

http://post-office.corp.redhat.com/archives/rhvirt-patches/2013-November/msg00800.html
Comment 3 yanbing du 2013-11-26 06:53:00 UTC 
Verify this bug with libvirt-1.1.1-13.el7.x86_64.
Following the reproduce steps, when start a guest with which contains <seclabel type='dynamic' relabel='yes'/> in its XML configuration, and restart libvirtd, the guest still in running status.
 
BTW, and warning message produce on libvirtd.log:
2013-11-26 06:48:41.253+0000: 16215: warning : virSecurityManagerNew:177 : Configured security driver "none" disables default policy to create confined guests
Comment 4 Ludek Smid 2014-06-13 09:44:45 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

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