[Bug 1322568] [NEW] nova interface-attach fails

[James Page]

Public bug reported:

Performing a nova interface-attach on a running instance fails; looks
like apparmor is block access to /dev/vhost-net:

May 23 10:30:43 caipora kernel: [70013.846910] device tapce18fa24-d3 entered promiscuous mode
May 23 10:30:43 caipora kernel: [70013.867013] qbrce18fa24-d3: port 2(tapce18fa24-d3) entered forwarding state
May 23 10:30:43 caipora kernel: [70013.867019] qbrce18fa24-d3: port 2(tapce18fa24-d3) entered forwarding state
May 23 10:30:43 caipora kernel: [70013.884964] type=1400 audit(1400841043.894:48): apparmor="DENIED" operation="file_receive" profile="libvirt-bc92e7cf-e67e-4fe3-b1bd-b95b1f1438eb" name="/dev/vhost-net" pid=54982 comm="qemu-system-x86" requested_mask="rw" denied_mask="rw" fsuid=109 ouid=0
May 23 10:30:43 caipora kernel: [70013.889005] qbrce18fa24-d3: port 2(tapce18fa24-d3) entered disabled state
May 23 10:30:43 caipora kernel: [70013.889640] device tapce18fa24-d3 left promiscuous mode
May 23 10:30:43 caipora kernel: [70013.889661] qbrce18fa24-d3: port 2(tapce18fa24-d3) entered disabled state
May 23 10:30:43 caipora kernel: [70013.951703] qbrce18fa24-d3: port 1(qvbce18fa24-d3) entered disabled state

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: libvirt-bin 1.2.2-0ubuntu13.1
ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Date: Fri May 23 10:31:05 2014
ProcEnviron:
 TERM=screen-bce
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: libvirt
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.default.libvirt.bin: [modified]
modified.conffile..etc.libvirt.libvirtd.conf: [modified]
modified.conffile..etc.libvirt.qemu.conf: [inaccessible: [Errno 13] Permission denied: '/etc/libvirt/qemu.conf']
mtime.conffile..etc.default.libvirt.bin: 2014-05-22T15:07:14.068622
mtime.conffile..etc.libvirt.libvirtd.conf: 2014-05-22T15:07:13.472920

** Affects: libvirt (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apparmor apport-bug trusty uec-images

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https://bugs.launchpad.net/bugs/1322568

Title:
  nova interface-attach fails

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