Bug#923881: systemd: user session fails when home directory contains /./

[Michael Biebl]

Hi Stephane

Am 06.03.19 um 18:28 schrieb Stephane Chazelas:
> Package: systemd
> Version: 241-1
> Severity: normal
> Tags: patch upstream
> 
> Dear Maintainer,
> 
> At work, users (in LDAP) have home directories set as
> /export/./home/username. The /./ is used for instance by vsftpd
> to indicate the location where the users are chrooted into (not
> relevant to this bug other than it gives some context as to why
> there's a /./ in there).
> 
> With those home directories however, user login sessions don't
> work properly, with for instance lxpolkit complaining about a
> missing session, or network manager complaining about
> insufficient rights. systemd-cgls doesn't show "user" control
> groups. When using gdm3 and gnome, it's impossible to login (log
> back out straight after authentication).
> 
> The auth logs have:
> 
> systemd-logind[1386]: Failed to start session scope session-17.scope: Failed to add required mount "/export/./home/stephane": Success
> 
> Turns out systemd doesn't like that /./. Looking at the code, it
> fails because the path is not "normalized".
> 
> I'm not sure when it stopped working (Ubuntu's 237-3ubuntu10.13
> package doesn't have the problem, 240-2 already had the problem,
> my auth.log doesn't go further back).
> 
> The patch below fixes the problem for me. We call path_simplify
> with a "kill_dots" argument of "true" instead of "false".
> 

Thanks for the patch.
Please consider forwarding it to upstream at
https://github.com/systemd/systemd as pull request

We usually prefer for patches to be applied upstream first.

Regards,
Michael


-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <http://alioth-lists.debian.net/pipermail/pkg-systemd-maintainers/attachments/20190306/41499af6/attachment.sig>