Yeah and the comment above this function pointed the right way:
Good case (libvirt is enforced):
oot@testkvm-groovy-to:~# aa-status
apparmor module is loaded.
31 profiles are loaded.
31 profiles are in enforce mode.
/snap/snapd/9279/usr/lib/snapd/snap-confine
/snap/snapd/9279/usr/lib/snapd/snap-confine//mount-namespace-capture-helper
/usr/bin/man
/usr/lib/NetworkManager/nm-dhcp-client.action
/usr/lib/NetworkManager/nm-dhcp-helper
/usr/lib/connman/scripts/dhclient-script
/usr/lib/snapd/snap-confine
/usr/lib/snapd/snap-confine//mount-namespace-capture-helper
/{,usr/}sbin/dhclient
libvirtd
libvirtd//qemu_bridge_helper
lsb_release
man_filter
man_groff
nvidia_modprobe
nvidia_modprobe//kmod
snap-update-ns.lxd
snap.lxd.activate
snap.lxd.benchmark
snap.lxd.buginfo
snap.lxd.check-kernel
snap.lxd.daemon
snap.lxd.hook.configure
snap.lxd.hook.install
snap.lxd.hook.remove
snap.lxd.lxc
snap.lxd.lxc-to-lxd
snap.lxd.lxd
snap.lxd.migrate
tcpdump
virt-aa-helper
0 profiles are in complain mode.
0 profiles are in kill mode.
0 profiles are in unconfined mode.
1 processes have profiles defined.
1 processes are in enforce mode.
/usr/sbin/libvirtd (14751) libvirtd
0 processes are in complain mode.
0 processes are unconfined but have a profile defined.
0 processes are in mixed mode.
0 processes are in kill mode.
Bad case libvirt (and plenty of other things) are not confined:
# aa-status
apparmor module is loaded.
15 profiles are loaded.
15 profiles are in enforce mode.
/snap/snapd/9279/usr/lib/snapd/snap-confine
/snap/snapd/9279/usr/lib/snapd/snap-confine//mount-namespace-capture-helper
snap-update-ns.lxd
snap.lxd.activate
snap.lxd.benchmark
snap.lxd.buginfo
snap.lxd.check-kernel
snap.lxd.daemon
snap.lxd.hook.configure
snap.lxd.hook.install
snap.lxd.hook.remove
snap.lxd.lxc
snap.lxd.lxc-to-lxd
snap.lxd.lxd
snap.lxd.migrate
0 profiles are in complain mode.
0 profiles are in kill mode.
0 profiles are in unconfined mode.
0 processes have profiles defined.
0 processes are in enforce mode.
0 processes are in complain mode.
0 processes are unconfined but have a profile defined.
0 processes are in mixed mode.
0 processes are in kill mode.
As if only snap profiles are loaded.
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to apparmor in Ubuntu.
https://bugs.launchpad.net/bugs/1895967
Title:
3.0.0~beta1-0ubuntu1 in Groovy breaks Libvirt/Qemu/KVM
Status in apparmor package in Ubuntu:
Incomplete
Bug description:
Hi,
I stumbled over this due to automatic tests checking proposed.
I found that Focal no more could migrate to Groovy with:
$ virsh migrate --unsafe --live fguest qemu+ssh://10.162.30.163/system
error: unsupported configuration: Security driver model 'apparmor' is not
available
I looked after it and found that while all former releases detected
apparmor correctly:
$ virsh capabilities | grep -C 3 secmodel
<cache>
<bank id='0' level='3' type='both' size='15' unit='MiB' cpus='0-11'/>
</cache>
<secmodel>
<model>apparmor</model>
<doi>0</doi>
</secmodel>
<secmodel>
<model>dac</model>
<doi>0</doi>
<baselabel type='kvm'>+64055:+108</baselabel>
<baselabel type='qemu'>+64055:+108</baselabel>
</secmodel>
Now on groovy that didn't work anymore:
<secmodel>
<model>none</model>
<doi>0</doi>
</secmodel>
<secmodel>
<model>dac</model>
<doi>0</doi>
<baselabel type='kvm'>+64055:+108</baselabel>
<baselabel type='qemu'>+64055:+108</baselabel>
</secmodel>
Since 3.0 is only in proposed:
# apt-cache policy apparmor
apparmor:
Installed: 2.13.3-7ubuntu6
Candidate: 3.0.0~beta1-0ubuntu1
Version table:
3.0.0~beta1-0ubuntu1 500
500 http://archive.ubuntu.com/ubuntu groovy-proposed/main amd64
Packages
*** 2.13.3-7ubuntu6 500
500 http://archive.ubuntu.com/ubuntu groovy/main amd64 Packages
100 /var/lib/dpkg/status
I installed the former version.
$ apt install apparmor=2.13.3-7ubuntu6
$ rm /var/cache/libvirt/qemu/capabilities/*
$ systemctl restart libvirtd
And it works again.
Interestingly going back to 3.0 then works and keeps working.
Therefore maybe it is a red-herring and I'll consider it incomplete & low
prio for now until I know more (allowing others that might see the same to find
this bug and chime in).
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1895967/+subscriptions
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