Bug 630563

Summary:	kernel: additional stack guard patches [rhel-5.6]
Product:	Red Hat Enterprise Linux 5	Reporter:	Eugene Teo (Security Response) <eteo>
Component:	kernel	Assignee:	Johannes Weiner <jweiner>
Status:	CLOSED ERRATA	QA Contact:	Red Hat Kernel QE team <kernel-qe>
Severity:	high	Docs Contact:
Priority:	high
Version:	5.6	CC:	cww, dhoward, eteo, jarod, jpirko, kzhang, lwang, lwoodman, plyons
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:	630562	Environment:
Last Closed:	2011-01-13 21:15:44 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:	630562, 630564
Bug Blocks:	659288, 659289, 659290

Description Eugene Teo (Security Response) 2010-09-06 08:31:26 UTC

+++ This bug was initially created as a clone of Bug #630562 +++

Description of problem:
Please backport:
  mm: make the mlock() stack guard page checks stricter
  7798330ac8114c731cfab83e634c6ecedaa233d7

  guard page for stacks that grow upwards
  8ca3eb08097f6839b2206e2242db4179aee3cfb3

Comment 2 Eugene Teo (Security Response) 2010-09-06 08:37:07 UTC

>   guard page for stacks that grow upwards
>   8ca3eb08097f6839b2206e2242db4179aee3cfb3

  testcase: http://lkml.org/lkml/2010/8/24/326
  https://patchwork.kernel.org/patch/127431/

Comment 6 RHEL Program Management 2010-12-01 20:20:09 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 11 Jarod Wilson 2010-12-07 19:16:26 UTC

in kernel-2.6.18-236.el5
You can download this test kernel (or newer) from http://people.redhat.com/jwilson/el5

Detailed testing feedback is always welcomed.

Comment 15 errata-xmlrpc 2011-01-13 21:15:44 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