Bug 594632

Summary:	kernel: security: testing the wrong variable in create_by_name() [rhel-4.8.z]
Product:	Red Hat Enterprise Linux 4	Reporter:	Eugene Teo (Security Response) <eteo>
Component:	kernel	Assignee:	Red Hat Kernel Manager <kernel-mgr>
Status:	CLOSED WONTFIX	QA Contact:	Red Hat Kernel QE team <kernel-qe>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.8	CC:	dhoward, eteo, jolsa, lwang, plyons, vmayatsk
Target Milestone:	rc	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-05-21 08:30:35 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:

Description Eugene Teo (Security Response) 2010-05-21 08:19:38 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