The following fix to the abstraction seems to fix the issue: === modified file 'data/apparmor/abstractions/lightdm' --- data/apparmor/abstractions/lightdm 2015-10-19 10:44:23 +0000 +++ data/apparmor/abstractions/lightdm 2016-09-28 03:39:54 +0000 @@ -95,7 +95,7 @@ unix (receive) peer=(label=unconfined), unix (create), unix (getattr, getopt, setopt, shutdown), - unix (bind, listen) type=stream addr="@/com/ubuntu/upstart-session/**", + unix (bind, listen, accept, receive, send) type=stream addr="@/com/ubuntu/upstart-session/**", unix (bind, listen) type=stream addr="@/tmp/dbus-*", unix (bind, listen) type=stream addr="@/tmp/.ICE-unix/[0-9]*", unix (bind, listen) type=stream addr="@/dbus-vfs-daemon/*",
I figure that something (Unity?) is now making more use of the upstart session. So we need to allow all operations on it. I'm not an upstart expert but I figure this is safe to allow? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1627304 Title: User locking problems - guest login crashing Status in apparmor package in Ubuntu: Invalid Status in gnome-session package in Ubuntu: Incomplete Status in lightdm package in Ubuntu: Triaged Status in lightdm-gtk-greeter package in Ubuntu: Incomplete Status in unity-greeter package in Ubuntu: Incomplete Status in xubuntu-default-settings package in Ubuntu: Incomplete Bug description: Vanilla Ubuntu install. Lock user - login to guest account, desktop crashes. Ctrl+Alt+F7 allows you to resume user after unlocking. Add new user - am able to switch between locked users properly. Can logout of one user and be able to resume other locked session. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: lightdm 1.19.4-0ubuntu1 ProcVersionSignature: Ubuntu 4.8.0-14.15-generic 4.8.0-rc7 Uname: Linux 4.8.0-14-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 CurrentDesktop: Unity Date: Sat Sep 24 13:38:09 2016 InstallationDate: Installed on 2016-09-24 (0 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Alpha amd64 (20160922) SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1627304/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
