lightdm does not clean-up password files for guest session until no guest login is possible

[no!chance]

Every login als guest user creates an entry in /etc/password, /etc/group and /etc/shadow but there is no cleanup. Some time, it is not possible to login as a guest, because these password-files are "full".

Only manual deletion of all these guest-entries resolves this issue.

[Robert Ancell (robert-ancell)]

What version of LightDM are you using?

[Robert Ancell (robert-ancell)]

I have also seen left behind guest accounts but I believe they're on some failure case, not the normal case.

[no!chance (ralf-fehlau)]

It ws the lightdm version, which comes with Ubuntu 12.04. It's the computer of a friend of mine. She logs in as a guest *very* often. I will check it again next time, when I get this laptop in my hands.

[no!chance (ralf-fehlau)]

I checked it again ... there are 124 new entries named "guest-..." in /etc/passwd, /etc/group and /etc/shadow. The lastest patches were installed.

[Schlomo Schapiro (sschapiro)]

Same problem on 14.10 utopic. Slowly building up a long list of guest- accounts.

It would be nice if the guest accounts would be cleaned up forcefully on a regular base.

[Schlomo Schapiro (sschapiro)]

I took the liberty of adding the people who appear in /usr/sbin/guest-account in the hope that maybe they can help to get this solved. Or at least know who should be notified of this issue. Thanks a lot for any help!