Apparmor blocks Firefox to access meminfo

[Thomas Mayer]

Taken from syslog:

Jan 30 10:13:46 lat61 kernel: [212284.232797] audit: type=1400 audit(1485767626.654:46432): apparmor="DENIED" operation="open" profile="/usr/lib/firefox/firefox{,*[^s][^h]}" name="/sys/devices/system/node/node0/meminfo" pid=10696 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: firefox 51.0.1+build2-0ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.4.0-59.80-generic 4.4.35
Uname: Linux 4.4.0-59-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0c: thomas 3175 F...m pulseaudio
 /dev/snd/pcmC0D0p: thomas 3175 F...m pulseaudio
 /dev/snd/controlC0: thomas 3175 F.... pulseaudio
BuildID: 20170125172221
Channel: Unavailable
CurrentDesktop: GNOME-Flashback:Unity
Date: Mon Jan 30 10:15:56 2017
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2014-11-29 (793 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
IpRoute:
 default via 192.168.178.1 dev wlan0 proto static metric 600
 169.254.0.0/16 dev docker0 scope link metric 1000 linkdown
 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown
 192.168.178.0/24 dev wlan0 proto kernel scope link src 192.168.178.22 metric 600
Locales: extensions.sqlite corrupt or missing
PrefSources: prefs.js
Profiles: Profile0 (Default) - LastVersion=51.0.1/20170125172221 (In use)
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: Upgraded to xenial on 2016-06-15 (228 days ago)
dmi.bios.date: 12/06/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A16
dmi.board.name: 023HKR
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA16:bd12/06/2013:svnDellInc.:pnLatitudeE5510:pvr0001:rvnDellInc.:rn023HKR:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E5510
dmi.product.version: 0001
dmi.sys.vendor: Dell Inc.

[Thomas Mayer (thomas303)]

Given that bug #1660268 is very unspecific and does not allow tracking specific rules, I think that this issue is not a duplicate of bug #1660268.

[Simon Déziel (sdeziel)]

@Thomas, how is this bug not a dup of LP: #1553758 that was opened before and contains the exact same Apparmor denial?

[Thomas Mayer (thomas303)]

Right. Did not reread the issue number. Sorry for that.

[Launchpad Janitor (janitor)]

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