Bug 439835

Summary:	gdm login list includes accounts that shouldn't be able to login
Product:	[Fedora] Fedora	Reporter:	Bruno Wolff III <bruno>
Component:	gdm	Assignee:	jmccann
Status:	CLOSED UPSTREAM	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	low
Version:	rawhide	CC:	cschalle, rstrode
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-04-01 03:40:38 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	235705

Description Bruno Wolff III 2008-03-31 17:09:33 UTC

Description of problem:
For a while (during the F9 rawhide period) gdm only listed accounts that had
logged in and 'other'. Now it seems to be listing lots of accounts even those
with a shell of /sbin/nologin which seems wrong. I am not sure of the intention,
but I would expect that accounts with shells of /sbin/nologin would not be
included in the list. (Probably any account with a shell not in /etc/shells
should also be excluded.)

Version-Release number of selected component (if applicable):
gdm-2.21.10-0.2008.03.26.3.fc9.i386

How reproducible:
100%

Steps to Reproduce:
1.Add some accounts with a shell of /sbin/nologin
2.Logout at the console with X running and wait for gdm to start
3.
  
Actual results:
Long list of accounts that aren't allowed to login.

Expected results:
Only mt account and 'other' expected to be in the list.

Additional info:
I am not seeing all of the accounts on the system listed, so I am guessing it
may be doing some filtering based on uid. I don't think that is appropiate
(except maybe for uid 0) as they are arbitrary and aren't necessarily correlated
to which accounts can login.

Comment 1 jmccann 2008-04-01 03:40:38 UTC

Well, we already exclude all users with shells not in /etc/shells.  The problem
is that /sbin/nologin is in /etc/shells.  So, I've patched upstream to
explicitly exclude users with /sbin/nologin and /bin/false as shells.

Comment 2 Bruno Wolff III 2008-04-01 10:38:59 UTC

Thanks! That solution sounds great and will definitely take care of my problem.