I'm seeing the same thing with postscreen on the current kernel:
audit: type=1400 audit(1433863724.358:39): apparmor="DENIED" operation="file_perm" profile="lxc-container-default" name="private/dnsblog" pid=21627 comm="postscreen" requested_mask="r" denied_mask="r" fsuid=100104 ouid=0
I'm seeing the same thing with postscreen on the current kernel:
audit: type=1400 audit(143386372 4.358:39) : apparmor="DENIED" operation= "file_perm" profile= "lxc-container- default" name="private/ dnsblog" pid=21627 comm="postscreen" requested_mask="r" denied_mask="r" fsuid=100104 ouid=0