@rbalint can you please open a new bug to track re-enabling the guest session with proper confinement rather than piggy back on this bug?
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1663157 Title: Guest session processes are not confined in 16.10 and newer releases Status in Light Display Manager: New Status in lightdm package in Ubuntu: Triaged Status in lightdm source package in Yakkety: Fix Released Status in lightdm source package in Zesty: Fix Released Status in lightdm source package in Artful: Fix Released Bug description: Processes launched under a lightdm guest session are not confined by the /usr/lib/lightdm/lightdm-guest-session AppArmor profile in Ubuntu 16.10, Ubuntu 17.04, and Ubuntu Artful (current dev release). The processes are unconfined. The simple test case is to log into a guest session, launch a terminal with ctrl-alt-t, and run the following command: $ cat /proc/self/attr/current Expected output, as seen in Ubuntu 16.04 LTS, is: /usr/lib/lightdm/lightdm-guest-session (enforce) Running the command inside of an Ubuntu 16.10 and newer guest session results in: unconfined To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1663157/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp