Bug#1094583: libvirt-daemon-driver-qemu: apparmor template missing from filesystem

[Kevin Otte]

I had tried doing an "apt --reinstall install ..." of the package to get 
the configuration to no avail. Ultimately I had to do a "dpkg 
--force-confmiss -i ..." to get the files.

This was an upgrade from the previous version in testing, so it may be 
something to be aware of in the upgrade process.

On 1/28/25 21:10, Alban Browaeys wrote:
On Tue, 28 Jan 2025 19:28:24 -0500 Kevin Otte 
<[ni...@nivex.net](mailto:ni...@nivex.net)> wrote:
Package: libvirt-daemon-driver-qemu
Version: 11.0.0-1
Severity: grave
Justification: renders package unusable
  
Dear Maintainer,
  
The package manifest includes an AppArmor template, but it is not seen on the filesystem after the package is installed:
  
[root@saratoga](mailto:root@saratoga):/tmp# dpkg -L libvirt-daemon-driver-qemu | grep -i template
/etc/apparmor.d/libvirt/TEMPLATE.qemu
[root@saratoga](mailto:root@saratoga):/tmp# ls -l /etc/apparmor.d/libvirt/
total 0

I cannot reproduce
ii  libvirt-daemon-driver-qemu 11.0.0-1     amd64        Virtualization daemon 
QEMU connection driver

ls -l /etc/apparmor.d/libvirt/TEMPLATE.qemu
-rw-r--r-- 1 root root 192  2 sept. 11:47 /etc/apparmor.d/libvirt/TEMPLATE.qemu

Either way if the template is shipped by the package it is not a package bug if 
the file is missing after installation.
Still it could be an dpkg/apt bug but unlikely.

Could it be you were running out of space on the /etc partition while 
installing or had a crash that corrupted
this filesystem while installing ?

https://packages.debian.org/trixie/amd64/libvirt-daemon-driver-qemu/filelist 
shows the apparmor template is shipped

downloading
http://http.us.debian.org/debian/pool/main/libv/libvirt/libvirt-daemon-driver-qemu_11.0.0-1_amd64.deb
and opening it with file-roller shows inside of it an 
/etc/apparmor.d/libvirt/TEMPLATE.qemu file with content: "
#
# This profile is for the domain whose UUID matches this file.
#

#include <tunables/global>

profile LIBVIRT_TEMPLATE flags=(attach_disconnected) {
   #include <abstractions/libvirt-qemu>
}
"

This bug looks like a local system issue.

Cheers,
Alban

This has the effect of rendering virt-install/virt-manager unable to deploy any 
new VMs:
  
Unable to complete install: 'internal error: cannot load AppArmor profile 'libvirt-f9987331-aa46-412e-baf0-bdef4b5a631e''
  
Traceback (most recent call last):
    File "/usr/share/virt-manager/virtManager/asyncjob.py", line 71, in 
cb_wrapper
      callback(asyncjob, *args, **kwargs)
      ~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/usr/share/virt-manager/virtManager/createvm.py", line 2008, in 
_do_async_install
      installer.start_install(guest, meter=meter)
      ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
    File "/usr/share/virt-manager/virtinst/install/installer.py", line 726, in 
start_install
      domain = self._create_guest(
              guest, meter, initial_xml, final_xml,
              doboot, transient)
    File "/usr/share/virt-manager/virtinst/install/installer.py", line 667, in 
_create_guest
      domain = self.conn.createXML(initial_xml or final_xml, 0)
    File "/usr/lib/python3/dist-packages/libvirt.py", line 4545, in createXML
      raise libvirtError('virDomainCreateXML() failed')
libvirt.libvirtError: internal error: cannot load AppArmor profile 
'libvirt-f9987331-aa46-412e-baf0-bdef4b5a631e'
  
  
2025-01-28T11:21:15.809798-05:00 saratoga libvirtd[1025]: internal error: Child process (LIBVIRT_LOG_OUTPUTS=3:stderr /usr/lib/libvirt/virt-aa-helper -c -u lib
virt-f9987331-aa46-412e-baf0-bdef4b5a631e) unexpected exit status 1: 
virt-aa-helper: error: template does not exist#012virt-aa-helper: error: could 
not create
profile
2025-01-28T11:21:15.809885-05:00 saratoga libvirtd[1025]: internal error: 
cannot load AppArmor profile 'libvirt-f9987331-aa46-412e-baf0-bdef4b5a631e'
  
  
-- System Information:
Debian Release: trixie/sid
    APT prefers testing
    APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
  
Kernel: Linux 6.12.10-amd64 (SMP w/4 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
  
Versions of packages libvirt-daemon-driver-qemu depends on:
ii  adduser                     3.137
ii  debconf [debconf-2.0]       1.5.89
ii  libc6                       2.40-6
ii  libgcc-s1                   14.2.0-12
ii  libglib2.0-0t64             2.82.4-2