Bug 875374 (CVE-2012-5517)

Summary:	CVE-2012-5517 kernel: mm/hotplug: failure in propagating hot-added memory to other nodes
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	agordeev, anton, bhu, davej, dhoward, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jneedle, jonathan, jrusnack, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, mcressma, plougher, rt-maint, rvrbovsk, sforsber, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-08-24 13:27:00 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:	870350, 875382, 875383
Bug Blocks:	875376

Description Petr Matousek 2012-11-10 21:19:17 UTC

A NULL pointer dereference flaw has been found in the way a new node's hot-added memory is propagated to other nodes zonelists. An unprivileged local user can use this flaw to crash the system.

Upstream fix:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=08dff7b7d629807dbb1f398c68dd9cd58dd657a1

Comment 2 Petr Matousek 2012-11-10 21:43:55 UTC

Created kernel tracking bugs for this issue

Affects: fedora-all [bug 875383]

Comment 3 errata-xmlrpc 2012-12-18 22:36:44 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2012:1580 https://rhn.redhat.com/errata/RHSA-2012-1580.html

Comment 5 Petr Matousek 2013-01-25 08:38:52 UTC

Statement:

This issue did affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 6.

This issue did not affect the versions of kernel package as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG.