Bug 630564 – kernel: additional stack guard patches [rhel-4.9]

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Bug 630564 - kernel: additional stack guard patches [rhel-4.9]

Summary:	kernel: additional stack guard patches [rhel-4.9]

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 4
Classification:	Red Hat
Component:	kernel (Show other bugs)
Sub Component:
Version:	4.9
Hardware:	All Linux

Priority	high Severity high
Target Milestone:	rc
Target Release:	---
Assigned To:	Johannes Weiner
QA Contact:	Petr Beňas
Docs Contact:

URL:
Whiteboard:
Keywords:	ZStream

Depends On:	630562
Blocks:	630563 632514 632515
	Show dependency tree / graph

Reported:	2010-09-06 04:32 EDT by Eugene Teo (Security Response)
Modified:	2015-01-04 17:59 EST (History)
CC List:	11 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:	630562
Environment:
Last Closed:	2011-02-16 10:52:58 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Backport of upstream patch (1.62 KB, patch) 2010-09-06 12:06 EDT, Jerome Marchand	no flags	Details \| Diff
modified reproducer (830 bytes, text/x-csrc) 2010-09-06 14:49 EDT, Jerome Marchand	no flags	Details
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2011:0263	normal	SHIPPED_LIVE	Important: Red Hat Enterprise Linux 4.9 kernel security and bug fix update	2011-02-16 10:14:55 EST

Groups: None (edit)

Description Eugene Teo (Security Response) 2010-09-06 04:32:27 EDT

+++ 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 04:37:17 EDT

>   guard page for stacks that grow upwards
>   8ca3eb08097f6839b2206e2242db4179aee3cfb3

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

Comment 4 Jerome Marchand 2010-09-06 12:06:45 EDT

Created attachment 443322 [details]
Backport of upstream patch

Comment 5 Jerome Marchand 2010-09-06 14:49:25 EDT

Created attachment 443353 [details]
modified reproducer

I changed the mapping address to resolve EINVAL error of mmap

Comment 11 Vivek Goyal 2010-09-16 13:53:12 EDT

Committed in 89.35.EL . RPMS are available at http://people.redhat.com/vgoyal/rhel4/

Comment 15 Petr Beňas 2010-11-30 11:42:49 EST

Probably wrong fixed-in-version. Reproduced in 89.EL, 89.30.EL and verified in 89.35.EL but also unexpectedly in 89.34.EL.

Comment 21 errata-xmlrpc 2011-02-16 10:52:58 EST

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-2011-0263.html

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