Bug 594631 – kernel: security: testing the wrong variable in create_by_name() [mrg-1.3]

Bug 594631 - kernel: security: testing the wrong variable in create_by_name() [mrg-1.3]

Summary:	kernel: security: testing the wrong variable in create_by_name() [mrg-1.3]

Status:	CLOSED NOTABUG

Aliases:	None

Product:	Red Hat Enterprise MRG
Classification:	Red Hat
Component:	realtime-kernel (Show other bugs)
Sub Component:
Version:	Development
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	John Kacur
QA Contact:	David Sommerseth
Docs Contact:

URL:
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Depends On:
Blocks:
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Reported:	2010-05-21 04:19 EDT by Eugene Teo (Security Response)
Modified:	2016-05-22 19:30 EDT (History)
CC List:	6 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2010-08-06 06:55:42 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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Description Eugene Teo (Security Response) 2010-05-21 04:19:22 EDT

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 1 Eugene Teo (Security Response) 2010-08-05 23:19:33 EDT

Also need this patch, fa7fe7af146a7b613e36a311eefbbfb5555325d1.

Comment 2 John Kacur 2010-08-06 06:55:42 EDT

fa7fe7af146a7b613e36a311eefbbfb5555325d1 is already present in
2.6.33.7-rt29-mrg35 as
a52298dba1c83b9ea7557c92c0200d325a966a99

b338cc8207eae46640a8d534738fda7b5e48511d is already present in
2.6.33.7-rt29-mrg35
as
4933574421fa12c89c29f95a57c6969be8c9e2d3

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