You have been subscribed to a public bug: I'm not sure this is a bug in unity-greeter, most likely it is another component.
After using the guest session feature (log in as guest) a couple of times I find the following cruft on my system. This shouldn't happen. $ grep guest /etc/shadow guest-ceyM7L:*:15982:0:99999:7::: guest-Qb2HtL:*:15989:0:99999:7::: guest-9KbZAI:*:15995:0:99999:7::: guest-Jz5Iz0:*:16011:0:99999:7::: guest-kWc1MQ:*:16014:0:99999:7::: guest-iqcR95:*:16026:0:99999:7::: guest-5UTOnm:*:16082:0:99999:7::: guest-iXkNz7:*:16101:0:99999:7::: guest-nHX8MC:*:16502:0:99999:7::: guest-lrkBHN:*:16572:0:99999:7::: guest-Ltux49:*:16698:0:99999:7::: guest-oggaCN:*:16756:0:99999:7::: guest-y5JvoT:*:16756:0:99999:7::: guest-YBXQ1O:*:16762:0:99999:7::: guest-d2N35B:*:17043:0:99999:7::: guest-B222qB:*:17073:0:99999:7::: guest-B4IqVx:*:17110:0:99999:7::: guest-51gqiH:*:17142:0:99999:7::: Other files seem to be affected as well. $ sudo rgrep -l guest-ceyM7L /etc/ /etc/group- /etc/group.org /etc/gshadow- /etc/passwd- /etc/passwd.org /etc/shadow- /etc/shadow.org /etc/group /etc/gshadow /etc/shadow /etc/passwd I'm running unity-greeter 14.04.11-0ubuntu1 on trusty. ** Affects: lightdm (Ubuntu) Importance: Undecided Status: New ** Tags: trusty -- guest session leaves cruft behind https://bugs.launchpad.net/bugs/1647943 You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lightdm in Ubuntu. -- 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