This issue was fixed in Ubuntu 16.04 LTS in apparmor 2.10.95-0ubuntu2.2
(by way of 2.10.95-0ubuntu2.1, which was superceded in xenial-proposed).
Marking that task closed.
** Changed in: apparmor (Ubuntu Xenial)
Status: In Progress => Fix Released
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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1604872
Title:
Apps can't connect to the user's session bus, even though it exists
Status in AppArmor:
Fix Released
Status in apparmor package in Ubuntu:
Fix Released
Status in apparmor source package in Xenial:
Fix Released
Bug description:
[Impact]
Systemd user sessions makes telepathy unhappy because access to
/run/user/<nnn>/bus is denied
[Test Case]
$ sudo apt install dbus-user-session empathy
Restart the session (or reboot) and then start empathy:
$ empathy
In 16.04, you may need to set correctly DBUS_SESSION_BUS_ADDRESS
before launching empathy:
$ DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/1000/bus" empathy
Without this bug fix, empathy fails with "Error contacting the account
manager", and dmesg shows several denial messages like so:
[ 63.960358] audit: type=1400 audit(1469458539.595:27):
apparmor="DENIED" operation="connect" profile="/usr/lib/telepathy
/mission-control-5" name="/run/user/1000/bus" pid=4563 comm="mission-
control" requested_mask="wr" denied_mask="wr" fsuid=1000 ouid=1000
[Regression Potential]
None. The fix simply adds permissions to the dbus-session-strict
abstraction. This change will not introduce any new AppArmor denials
since policy is being loosened instead of being restricted.
To manage notifications about this bug go to:
https://bugs.launchpad.net/apparmor/+bug/1604872/+subscriptions
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