Bug 680000 (CVE-2011-1016)

Summary:	CVE-2011-1016 kernel: drm/radeon/kms: check AA resolve registers on r300
Product:	[Other] Security Response	Reporter:	Eugene Teo (Security Response) <eteo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	arozansk, bhu, dhoward, jkacur, kernel-mgr, kmcmartin, lgoncalv, lwang, rt-maint, tcallawa, vkrizan, 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:	2015-07-29 13:57:39 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:	680001, 680002, 680003
Bug Blocks:

Description Eugene Teo (Security Response) 2011-02-24 03:39:07 UTC

Check values passed in to AARESOLVE_OFFSET on r300. It can be used to write
arbitrary data to VRAM, GTT, etc. This is specific to a range of GPUs only.

drm/radeon/kms: check AA resolve registers on r300
http://git.kernel.org/linus/fff1ce4dc6113b6fdc4e3a815ca5fd229408f8ef

[PATCH] drm/radeon: fix regression with AA resolve checking
https://patchwork.kernel.org/patch/576101/ ->
http://git.kernel.org/linus/45e4039c3aea597ede44a264cea322908cdedfe9

Comment 3 Eugene Teo (Security Response) 2011-02-25 01:15:58 UTC

Both patches have been committed to the upstream kernel.

Comment 4 Vincent Danen 2011-02-28 17:56:15 UTC

This was assigned CVE-2011-1016:

The Radeon GPU drivers in the Linux kernel before 2.6.38-rc5 do not properly validate data related to the AA resolve registers, which allows local users to write to arbitrary memory locations associated with (1) Video RAM (aka VRAM) or (2) the Graphics Translation Table (GTT) via crafted values.

http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.38-rc5

Comment 5 errata-xmlrpc 2011-05-10 18:10:45 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0498 https://rhn.redhat.com/errata/RHSA-2011-0498.html

Comment 6 Eugene Teo (Security Response) 2011-07-19 05:48:13 UTC

Statement:

This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, and Red Hat Enterprise MRG as they did not backport the upstream commits fff1ce4d and 45e4039c that introduced this issue. This has been addressed in Red Hat Enterprise Linux 6 via https://rhn.redhat.com/errata/RHSA-2011-0498.html.