commit f305d8a191941d1ea6e036ae9fc02a3164b3e746
Author: Guido Günther <agx@sigxcpu.org>
Date:   Fri Sep 15 17:13:16 2017 +0200

    apparmor: add attach_disconnected
    
    Otherwise we fail to reconnect to /dev/net/tun opened by libvirtd
    like
    
        [ 8144.507756] audit: type=1400 audit(1505488162.386:38069121): apparmor="DENIED" operation="file_perm" info="Failed name lookup - disconnected path" error=-13 profile="libvirt-5dfcc8a7-b79a-4fa9-a41f-f6271651934c" name="dev/net/tun" pid=9607 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=117 ouid=0
    
    Reviewed-By: Jamie Strandboge <jamie@canonical.com>
    Acked-By: Michal Privoznik <mprivozn@redhat.com>

Index: libvirt-3.7.0/examples/apparmor/TEMPLATE.lxc
===================================================================
--- libvirt-3.7.0.orig/examples/apparmor/TEMPLATE.lxc
+++ libvirt-3.7.0/examples/apparmor/TEMPLATE.lxc
@@ -4,7 +4,7 @@
 
 #include <tunables/global>
 
-profile LIBVIRT_TEMPLATE {
+profile LIBVIRT_TEMPLATE flags=(attach_disconnected) {
   #include <abstractions/libvirt-lxc>
 
   # Globally allows everything to run under this profile
Index: libvirt-3.7.0/examples/apparmor/TEMPLATE.qemu
===================================================================
--- libvirt-3.7.0.orig/examples/apparmor/TEMPLATE.qemu
+++ libvirt-3.7.0/examples/apparmor/TEMPLATE.qemu
@@ -4,6 +4,6 @@
 
 #include <tunables/global>
 
-profile LIBVIRT_TEMPLATE {
+profile LIBVIRT_TEMPLATE flags=(attach_disconnected) {
   #include <abstractions/libvirt-qemu>
 }