Bug 216615

Summary: gnome-screensaver fails to unlock screen if kerberos in use; segfaults on x86_64
Product: Red Hat Enterprise Linux 5 Reporter: Stephan Wiesand <stephan.wiesand>
Component: gnome-screensaverAssignee: Ray Strode [halfline] <rstrode>
Status: CLOSED DUPLICATE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 5.0   
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2006-11-22 06:45:44 UTC Type: ---
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Description Stephan Wiesand 2006-11-21 08:39:26 UTC 
Description of problem:
We're using Kerberos 5 for authentication (and AFS homed directories, if it
matters). With the current pam/krb5 configuration on EL5 beta2, the following
all work as expected:
 - login (gdm)
 - login (console)
 - login (ssh, password)
 - login (ssh, gssapi)
 - kinit, aklog
 - kscreensaver (even does the right thing - refreshs my credentials)

However, gnome-screensaver fails to unlock the screen. Having turned on
debugging for the pam_krb5afs module, I see a success message in the log
for every unlock attempt:

gnome-screensaver-dialog: pam_krb5[4638]: authentication succeeds for ...

On x86_64 only, I see in addition:

kernel: gnome-screensav[8260]: segfault at 0000003456a26730 rip 0000003456a26730
rsp 0000000040a000b8 error 14

On x86, it fails silently.

Accounts with a local password don't have this problem

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

gnome-screensaver-2.16.1-2.el5.x86_64
gnome-screensaver-2.16.1-2.el5.i386

How reproducible:
100%
Comment 1 Ray Strode [halfline] 2006-11-21 19:40:08 UTC 
Hi, does

 rpm -e pkinit-nss  

work around the problem for you?
Comment 2 Stephan Wiesand 2006-11-22 05:55:00 UTC 
Hi, yes it does. Unlocking the screen works, no more segfaults.
Comment 3 Ray Strode [halfline] 2006-11-22 06:45:44 UTC 

*** This bug has been marked as a duplicate of 216718 ***