Bug 594635

Summary:	kernel: security: testing the wrong variable in create_by_name() [rhel-5.6]
Product:	Red Hat Enterprise Linux 5	Reporter:	Eugene Teo (Security Response) <eteo>
Component:	kernel	Assignee:	Don Howard <dhoward>
Status:	CLOSED ERRATA	QA Contact:	Hangbin Liu <haliu>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5.6	CC:	dhoward, eguan, eteo, haliu, jarod, jpirko, lwang
Target Milestone:	rc	Keywords:	ZStream
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-01-13 21:33:37 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:	643347

Description Eugene Teo (Security Response) 2010-05-21 08:20:30 UTC

Description of problem:
There is a typo here.  We should be testing "*dentry" instead of "dentry".  If
"*dentry" is an ERR_PTR, it gets dereferenced in either mkdir() or create()
which would cause an OOPs.

This bug has been in the kernel since 2.6.14-rc2 via b67dbf9d.

Upstream commit:
http://git.kernel.org/linus/b338cc8207eae46640a8d534738fda7b5e48511d

Comment 5 RHEL Program Management 2010-08-17 18:40:04 UTC

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 7 Jarod Wilson 2010-08-31 01:17:22 UTC

in kernel-2.6.18-214.el5
You can download this test kernel from http://people.redhat.com/jwilson/el5

Detailed testing feedback is always welcomed.

Comment 11 Eryu Guan 2010-12-17 05:52:42 UTC

Passed case /kernel/errata/5.5.z/643347-test-wrong-var-in-create_by_name, remove SanityOnly

Comment 13 errata-xmlrpc 2011-01-13 21:33:37 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/RHSA-2011-0017.html