[Pkg-libvirt-maintainers] Bug#956936: libvirt-daemon: clients unable to connect to libvirt: CheckAuthorization: Action org.libvirt.unix.manage is not registered

[Gabriel Filion]

Package: libvirt-daemon
Version: 6.0.0-6
Severity: important

Hello,

I've been unable to use libvirt for a while and I haven't yet found a
workaround or a fix..

This started happening the last time I ran package upgrades. However, since I
don't run them very often I'm not sure with which versions of packages it
started happening. If it seems relevant to do so, I can test rolling back to
older packages to figure out when things started to break down.

I've been using libvirt with qemu-kvm for a while.

my user is part of the libvirt and kvm groups so I should have access to the
local unix sockets. however when I try and connect to libvirt on localhost
(either with vagrant-libvirt or with virt-manager) I get an error message that
also appears in the service's log as:

Apr 16 17:51:47 meevyl libvirtd[544743]: error from service: CheckAuthorization: Action org.libvirt.unix.manage is not registered
Apr 16 17:51:47 meevyl libvirtd[544743]: End of file while reading data: Input/output error


>From what I could vaguely understand, the first line seems to be related to
polkit but I don't quite understand how this thing is supposed to be working.


I do have polkit installed and runing:

$ dpkg -l | grep polkit
ii  gir1.2-polkit-1.0                       0.105-26                               amd64        GObject introspection data for PolicyKit
ii  libpolkit-agent-1-0:amd64               0.105-26                               amd64        PolicyKit Authentication Agent API
ii  libpolkit-gobject-1-0:amd64             0.105-26                               amd64        PolicyKit Authorization API
$ ps aux|grep polkit
root      544473  0.0  0.0 235204 10120 ?        Ssl  17:49   0:00 /usr/lib/policykit-1/polkitd --no-debug
gabster   545750  0.0  0.0   8744   844 pts/8    S+   18:29   0:00 grep --color=auto polkit


-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.4.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_CA.utf8, LC_CTYPE=en_CA.utf8 (charmap=UTF-8) (ignored: LC_ALL set to en_CA.utf8), LANGUAGE=en_CA.utf8 (charmap=UTF-8) (ignored: LC_ALL set to en_CA.utf8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libvirt-daemon depends on:
ii  libblkid1                   2.34-0.1
ii  libc6                       2.30-4
ii  libcap-ng0                  0.7.9-2.1+b2
ii  libdbus-1-3                 1.12.16-2
ii  libdevmapper1.02.1          2:1.02.167-1+b1
ii  libfuse2                    2.9.9-3
ii  libgcc-s1                   10-20200411-1
ii  libglib2.0-0                2.64.2-1
ii  libnetcf1                   1:0.2.8-1+b3
ii  libparted2                  3.3-4
ii  libpcap0.8                  1.9.1-3
ii  libpciaccess0               0.14-1
ii  libselinux1                 3.0-1+b3
ii  libudev1                    245.4-4
ii  libvirt-daemon-driver-qemu  6.0.0-6
ii  libvirt0                    6.0.0-6
ii  libxml2                     2.9.10+dfsg-5

Versions of packages libvirt-daemon recommends:
ii  libvirt-daemon-driver-lxc   6.0.0-6
ii  libvirt-daemon-driver-vbox  6.0.0-6
ii  libvirt-daemon-driver-xen   6.0.0-6
ii  libxml2-utils               2.9.10+dfsg-5
ii  netcat-openbsd              1.206-1
ii  qemu                        1:4.2-6
ii  qemu-kvm                    1:4.2-6

Versions of packages libvirt-daemon suggests:
pn  libvirt-daemon-driver-storage-gluster  <none>
pn  libvirt-daemon-driver-storage-rbd      <none>
pn  libvirt-daemon-driver-storage-zfs      <none>
pn  libvirt-daemon-system                  <none>
pn  numad                                  <none>

-- no debconf information