apparmor denial for /dev/knvmap on grouper

# dmesg | grep DENIED
[ 41.971549] type=1400 audit(1381312738.085:56): apparmor="DENIED"
operation="open" parent=1215
profile="ar.com.beuno.hello-world_hello-world_0.9" name="/dev/knvmap"
pid=1633 comm="qmlscene" requested_mask="rw" denied_mask="rw"
fsuid=32011 ouid=1000
[ 56.924797] type=1400 audit(1381312753.035:57): apparmor="DENIED"
operation="open" parent=1215
profile="com.ubuntu.developer.webapps.webapp-twitter_webapp-twitter_1.0.3"
name="/dev/knvmap" pid=1693 comm="webbrowser-app" requested_mask="rw"
denied_mask="rw" fsuid=32011 ouid=1000
[ 59.399189] type=1400 audit(1381312755.515:58): apparmor="DENIED"
operation="open" parent=1723
profile="com.ubuntu.developer.webapps.webapp-twitter_webapp-twitter_1.0.3"
name="/dev/knvmap" pid=1725 comm="QtWebProcess" requested_mask="rw"
denied_mask="rw" fsuid=32011 ouid=1000