I am seeing this too on a machine upgraded from 18.04 to 20.04:
# Clarify what does happen #
virsh list as non-root user produces the following audit apparmor DENIED in dmesg:
[452295.854406] audit: type=1400 audit(1609252406.821:273932): apparmor="DENIED" operation="bind" profile="libvirtd" pid=2117888 comm="libvirtd" family="unix" sock_type="dgram" protocol=0 requested_mask="bind" denied_mask="bind" addr="@userdb-200402f6469c0bb726e901462b8cedb4"
strace of libvirtd process while running virsh list attached
I am seeing this too on a machine upgraded from 18.04 to 20.04:
# Clarify what does happen #
virsh list as non-root user produces the following audit apparmor DENIED in dmesg: 6.821:273932) : apparmor="DENIED" operation="bind" profile="libvirtd" pid=2117888 comm="libvirtd" family="unix" sock_type="dgram" protocol=0 requested_ mask="bind" denied_mask="bind" addr="@ userdb- 200402f6469c0bb 726e901462b8ced b4"
[452295.854406] audit: type=1400 audit(160925240
strace of libvirtd process while running virsh list attached