Bug 512641 – kernel: security: implement mmap_min_addr infrastructure [rhel-4.9]

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Bug 512641 - kernel: security: implement mmap_min_addr infrastructure [rhel-4.9]

Summary:	kernel: security: implement mmap_min_addr infrastructure [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:	Linda Wang
QA Contact:	Petr Beňas
Docs Contact:

URL:
Whiteboard:
Keywords:	ZStream

Depends On:	512638
Blocks:	517904
	Show dependency tree / graph

Reported:	2009-07-20 01:58 EDT by Eugene Teo (Security Response)
Modified:	2015-01-04 17:58 EST (History)
CC List:	11 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:	512638
Environment:
Last Closed:	2011-02-16 10:53:31 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)
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) 2009-07-20 01:58:19 EDT

+++ This bug was initially created as a clone of Bug #512638 +++

Description of problem:
This patch removes the dependency of mmap_min_addr on CONFIG_SECURITY. It also sets a default mmap_min_addr of 4096.

mmapping of addresses below 4096 will only be possible for processes with CAP_SYS_RAWIO.

Upstream commit:
http://git.kernel.org/linus/e0a94c2a63f2644826069044649669b5e7ca75d3

Comment 1 Eric Paris 2009-07-20 13:29:43 EDT

We don't have support for this at all, a proper backport of mmap_min_addr code can include this if it so chooses, but we don't really need a seperate BZ.  We build with CONFIG_SECURITY, as long as the backport is done properly this patch will be meaningless to us.

Comment 2 Vitaly Mayatskikh 2009-07-20 14:12:34 EDT

Eric, I want to use this bz to implement mmap_min_addr separately from bz508843.

Comment 3 Vivek Goyal 2009-08-11 17:18:28 EDT

Committed in 89.9.EL . RPMS are available at http://people.redhat.com/vgoyal/rhel4/

Comment 8 Petr Beňas 2010-11-22 08:06:47 EST

Reproduced in 89.8.EL and verified in 89.9.EL.

Comment 10 errata-xmlrpc 2011-02-16 10:53:31 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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