Ubuntu
webbrowser-app package

AppArmor denied opening /dev/shm/lttng-ust-wait*

Bug #1606946 reported by Alejandro J. Cura
22
This bug affects 4 people
Affects Status Importance Assigned to Milestone
webbrowser-app (Ubuntu)
Confirmed
High
Unassigned

Bug Description

When running under the Unity8 desktop session, the kernel log is spammed with apparmor messages coming from the webbrowser app profile, the same four lines every 5 seconds:

$ dmesg -w
[...]
[85560.662068] audit: type=1400 audit(1469629097.571:50068): apparmor="DENIED" operation="open" profile="webbrowser-app" name="/dev/shm/lttng-ust-wait-6-1000" pid=17206 comm="QQmlThread" requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000
[85560.662124] audit: type=1400 audit(1469629097.571:50069): apparmor="DENIED" operation="open" profile="webbrowser-app" name="/dev/shm/lttng-ust-wait-6" pid=17205 comm="QQmlThread" requested_mask="r" denied_mask="r" fsuid=1000 ouid=119
[85560.662173] audit: type=1400 audit(1469629097.571:50070): apparmor="DENIED" operation="open" profile="webbrowser-app" name="/dev/shm/lttng-ust-wait-6-1000" pid=17206 comm="QQmlThread" requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000
[85560.662221] audit: type=1400 audit(1469629097.571:50071): apparmor="DENIED" operation="open" profile="webbrowser-app" name="/dev/shm/lttng-ust-wait-6" pid=17205 comm="QQmlThread" requested_mask="r" denied_mask="r" fsuid=1000 ouid=119

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in webbrowser-app (Ubuntu):
status: New → Confirmed
Revision history for this message
Olivier Tilloy (osomon) wrote :

Possibly related to an old bug: bug #1404302.

Revision history for this message
Pat McGowan (pat-mcgowan) wrote :

The old bug was about errors reported in the apps logs. This is related to logging into syslog.
I also see this on a core system. I only see reports related to the browser or webapps.
Could something have changed or be missing in the apparmor profile? or some configuration in the browser enabling this?

Changed in webbrowser-app (Ubuntu):
assignee: nobody → Olivier Tilloy (osomon)
importance: Undecided → High
Olivier Tilloy (osomon)
Changed in webbrowser-app (Ubuntu):
assignee: Olivier Tilloy (osomon) → nobody
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