Bug 134941

Summary: gdm fails to reset console user if Xserver is killed with Ctrl-Alt-Backspace
Product: [Fedora] Fedora Reporter: Thomas Woerner <twoerner>
Component: pamAssignee: Tomas Mraz <tmraz>
Status: CLOSED RAWHIDE QA Contact: Mike McLean <mikem>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: nalin, rhbugzilla, rstrode
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2004-10-20 14:20:34 EDT Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On:    
Bug Blocks: 130887    
Attachments:
Description Flags
Don't check existance of TTY when dropping console perms none

Description Thomas Woerner 2004-10-07 09:32:21 EDT 
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 05:20:52 EDT 
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 05:24:37 EDT 
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 08:16:08 EDT 
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 14:20:34 EDT 
patch in rawhide seems to work fine, closing...
Comment 5 Ray Strode [halfline] 2004-11-04 22:03:36 EST 
*** Bug 86481 has been marked as a duplicate of this bug. ***