Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

For bugs related to Red Hat Enterprise Linux 5 product line. The current stable release is 5.10. For Red Hat Enterprise Linux 6 and above, please visit Red Hat JIRA https://issues.redhat.com/secure/CreateIssue!default.jspa?pid=12332745 to report new issues.

Bug 689382

Summary:	null pointer dereference crashes tcsh
Product:	Red Hat Enterprise Linux 5	Reporter:	Ondrej Vasik <ovasik>
Component:	tcsh617	Assignee:	Vojtech Vitek <vvitek>
Status:	CLOSED ERRATA	QA Contact:
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	5.5	CC:	bmason, bnater, hripps, jwest, msvoboda, rvokal, tao
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	Previously, under certain circumstances, a null pointer may have been incorrectly dereferenced, causing the tcsh shell to terminate unexpectedly. With this update, the pointer is now tested for the NULL value before it is dereferenced, and tcsh no longer crashes in this circumstance.	Story Points:	---
Clone Of:	624450	Environment:
Last Closed:	2011-07-21 08:47:50 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:	624450
Bug Blocks:	631815

Comment 4 Vojtech Vitek 2011-05-23 15:52:10 UTC

It turned out there was a regression in tcsh-6.17.00, so the bug was still valid. I've reported the issue upstream: http://bugs.gw.com/view.php?id=122

Comment 6 Miroslav Svoboda 2011-07-01 22:06:26 UTC

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Previously, under certain circumstances, a null pointer may have been incorrectly dereferenced, causing the tcsh shell to terminate unexpectedly. With this update, the pointer is now tested for the NULL value before it is dereferenced, and tcsh no longer crashes in this circumstance.

Comment 7 errata-xmlrpc 2011-07-21 08:47:50 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-1072.html

Comment 8 errata-xmlrpc 2011-07-21 12:10:08 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-1072.html