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Bug 134941 - gdm fails to reset console user if Xserver is killed with Ctrl-Alt-Backspace
Summary: gdm fails to reset console user if Xserver is killed with Ctrl-Alt-Backspace
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: pam
Version: rawhide
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Tomas Mraz
QA Contact: Mike McLean
URL:
Whiteboard:
: 86481 (view as bug list)
Depends On:
Blocks: FC3Blocker
TreeView+ depends on / blocked
 
Reported: 2004-10-07 13:32 UTC by Thomas Woerner
Modified: 2007-11-30 22:10 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2004-10-20 18:20:34 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)
Don't check existance of TTY when dropping console perms (deleted)
2004-10-20 09:24 UTC, Ray Strode [halfline] 		no flags Details | Diff
View All

Description Thomas Woerner 2004-10-07 13:32:21 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.3) Gecko/20041001
Firefox/0.10

Description of problem:
gdm should set console user back to root if Xserver gets killed.

Version-Release number of selected component (if applicable):
gdm-2.6.0.5-2

How reproducible:
Always

Steps to Reproduce:
1. Go to runlevel 5
2. Log in as user1
3. Kill Xserver with Ctrl-Alt-Backspace
5. Login as an user2: Files from /etc/security/console.perms still
belong to user1


Actual Results:  No reset of file permissions.

Expected Results:  Reset of file permissions.

Additional info:
This also happens on RHEL3 etc.
Comment 1 Ray Strode [halfline] 2004-10-20 09:20:52 UTC 
Hi so this actually looks like it may be a problem with pam_console.so and not
GDM.  Basically pam_console checks to make sure the display socket is around
before unref'n console priveleges.  Of course, if the user ctrl-alt-backspaces
then the display socket will be wiped.
Comment 2 Ray Strode [halfline] 2004-10-20 09:24:37 UTC 
Created attachment 105500 [details]
Don't check existance of TTY when dropping console perms

Here's a patch that inhibits the checks when dropping console perms.  It needs
to be reviewed by someone who knows pam better than me.
Comment 3 Tomas Mraz 2004-10-20 12:16:08 UTC 
I think the patch should be harmless however I'll modify it to skip
the check only on X logins not console logins.
Comment 4 Ray Strode [halfline] 2004-10-20 18:20:34 UTC 
patch in rawhide seems to work fine, closing...
Comment 5 Ray Strode [halfline] 2004-11-05 03:03:36 UTC 
*** Bug 86481 has been marked as a duplicate of this bug. ***
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