Bug 512638

Summary:	kernel: security: use mmap_min_addr independently of security models [rhel-5.4]
Product:	Red Hat Enterprise Linux 5	Reporter:	Eugene Teo (Security Response) <eteo>
Component:	kernel	Assignee:	Vitaly Mayatskikh <vmayatsk>
Status:	CLOSED WONTFIX	QA Contact:	Red Hat Kernel QE team <kernel-qe>
Severity:	high	Docs Contact:
Priority:	high
Version:	5.4	CC:	dzickus, eparis, jmorris, jpirko, jskrabal, lwang, pankaj_behl, security-response-team
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	512641 512642 512643 (view as bug list)		Environment:
Last Closed:	2009-07-27 05:39:18 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:	508842
Bug Blocks:	512641, 512642, 512643

Description Eugene Teo (Security Response) 2009-07-20 05:49:21 UTC

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 17:28:21 UTC

NAK, this is useless for RHEL.  We already build with CONFIG_SECURITY (selinux=0 does not change this)

This patch is a waste of time and fixes nothing.

Comment 2 Eugene Teo (Security Response) 2009-07-27 05:39:18 UTC

As per comment #1.