Ubuntu
libvirt package

missing apparmor rule to read /sys/module/vhost/parameters/max_mem_regions

Bug #1531564 reported by Simon Déziel
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
libvirt (Ubuntu)
Fix Released
Medium
Unassigned
Wily
Won't Fix
Medium
Unassigned

Bug Description

With QEMU 2.5, I noticed this error when starting a VM:

apparmor="DENIED" operation="open" profile="libvirt-a856b198-b559-44c2-af9d-9a6205993213" name="/sys/module/vhost/parameters/max_mem_regions" pid=13646 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=114 ouid=0

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: libvirt-bin 1.2.21-2ubuntu4
ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3
Uname: Linux 4.3.0-5-generic x86_64
ApportVersion: 2.19.3-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Jan 6 12:05:42 2016
KernLog:

SourcePackage: libvirt
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.libvirt.qemu.conf: [inaccessible: [Errno 13] Permission denied: '/etc/libvirt/qemu.conf']
modified.conffile..etc.libvirt.qemu.networks.default.xml: [deleted]

Revision history for this message
Simon Déziel (sdeziel) wrote :
Revision history for this message
Simon Déziel (sdeziel) wrote :

Adding "/sys/module/vhost/parameters/max_mem_regions r," to /etc/apparmor.d/abstractions/libvirt-qemu fixes the problem for me.

Revision history for this message
Serge Hallyn (serge-hallyn) wrote :

Thanks for submitting this bug. The fix is being pushed in the next version.

Changed in libvirt (Ubuntu):
importance: Undecided → Medium
status: New → In Progress
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package libvirt - 1.2.21-2ubuntu7

---------------
libvirt (1.2.21-2ubuntu7) xenial; urgency=medium

  * d/apparmor/libvirt-qemu: silence denial to shm/lttng file since shm
    mountpoint has moved (LP: #1529319)

 -- Serge Hallyn <email address hidden> Mon, 11 Jan 2016 11:55:28 -0800

Changed in libvirt (Ubuntu):
status: In Progress → Fix Released
Revision history for this message
Brian Murray (brian-murray) wrote : Please test proposed package

Hello Simon, or anyone else affected,

Accepted libvirt into wily-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/libvirt/1.2.16-2ubuntu11.15.10.4 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Changed in libvirt (Ubuntu Wily):
status: New → Fix Committed
tags: added: verification-needed
Revision history for this message
Simon Déziel (sdeziel) wrote :

I don't have any Wily machine available but I can confirm the fix working in Xenial.

Revision history for this message
Ubuntu Foundations Team Bug Bot (crichton) wrote : [libvirt/wily] verification still needed

The fix for this bug has been awaiting testing feedback in the -proposed repository for wily for more than 90 days. Please test this fix and update the bug appropriately with the results. In the event that the fix for this bug is still not verified 15 days from now, the package will be removed from the -proposed repository.

tags: added: removal-candidate
Revision history for this message
Mathew Hodson (mhodson) wrote :

The package was removed due to its SRU bug(s) not being verified in a timely fashion.

Changed in libvirt (Ubuntu Wily):
importance: Undecided → Medium
status: Fix Committed → Won't Fix
tags: removed: removal-candidate verification-needed
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