Public bug reported:

bionic up to  date

Viewing the console of a running VM fails with:
internal error: unable to execute QEMU command 'getfd': No file descriptor 
supplied via SCM_RIGHTS (similar to bug 1668681)

This apparmor denial is displayed in syslog

1645: error : qemuMonitorJSONCheckError:392 : internal error: unable to execute 
QEMU command 'getfd': No file descriptor supplied via SCM_RIGHTS
févr. 05 15:43:29 herm kernel: audit: type=1400 audit(1517841809.633:190): 
apparmor="DENIED" operation="file_receive" profile="/usr/sbin/libvirtd" 
pid=3306 comm="qemu-system-x86" family="unix" sock_type="stream" protocol=0 
requested_mask="send receive" denied_mask="send receive" addr=none 
peer_addr=none peer="libvirt-a5c0d9b3-5d7e-48b0-b26a-583527d85112"


ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: libvirt0 4.0.0-1ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
ApportVersion: 2.20.8-0ubuntu8
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Feb  5 15:36:37 2018
InstallationDate: Installed on 2013-09-03 (1615 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130902)
ProcEnviron:
 TERM=screen-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: libvirt
UpgradeStatus: Upgraded to bionic on 2018-01-26 (9 days ago)

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


** Tags: amd64 apparmor apport-bug bionic

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https://bugs.launchpad.net/bugs/1747442

Title:
  virt-manager fails to show virtual console: internal error: unable to
  execute QEMU command 'getfd': No file descriptor supplied via
  SCM_RIGHTS

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