Bug 512641 - kernel: security: implement mmap_min_addr infrastructure [rhel-4.9]
Summary: kernel: security: implement mmap_min_addr infrastructure [rhel-4.9]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.9
Hardware: All
OS: Linux
high
high
Target Milestone: rc
: ---
Assignee: Linda Wang
QA Contact: Petr Beňas
URL:
Whiteboard:
Depends On: 512638
Blocks: 517904
TreeView+ depends on / blocked
 
Reported: 2009-07-20 05:58 UTC by Eugene Teo (Security Response)
Modified: 2015-01-04 22:58 UTC (History)
11 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of: 512638
Environment:
Last Closed: 2011-02-16 15:53:31 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:0263 0 normal SHIPPED_LIVE Important: Red Hat Enterprise Linux 4.9 kernel security and bug fix update 2011-02-16 15:14:55 UTC

Description Eugene Teo (Security Response) 2009-07-20 05:58:19 UTC
+++ 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 17:29:43 UTC
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 18:12:34 UTC
Eric, I want to use this bz to implement mmap_min_addr separately from bz508843.

Comment 3 Vivek Goyal 2009-08-11 21:18:28 UTC
Committed in 89.9.EL . RPMS are available at http://people.redhat.com/vgoyal/rhel4/

Comment 8 Petr Beňas 2010-11-22 13:06:47 UTC
Reproduced in 89.8.EL and verified in 89.9.EL.

Comment 10 errata-xmlrpc 2011-02-16 15:53:31 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-2011-0263.html


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