Bug 168791

Summary:	CVE-2006-1528 Possible local crash by dio/mmap sg driver
Product:	Red Hat Enterprise Linux 4	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Doug Ledford <dledford>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	4.0	CC:	alan, jbaron, lwang, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	public=20050830,impact=important
Fixed In Version:	RHSA-2006-0493	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-05-24 09:26:14 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:

Description Mark J. Cox 2005-09-20 10:35:55 UTC

The following commit was made upstream:
http://linux.bkbits.net:8080/linux-2.6/cset@43220081yu9ClBQNuqSSnW_9amW7iQ

This was to fix a flaw that meant that a local? user could attempt a dio/mmap
and cause a sg driver oops, based on this message:
http://marc.theaimsgroup.com/?l=linux-scsi&m=112540053711489&w=2

This may affect RHEL4, it needs a quick sanity check.

Comment 1 Doug Ledford 2005-10-18 17:27:33 UTC

Quick check shows it's needed.  Being built/tested now.

Comment 2 Doug Ledford 2005-10-19 01:14:16 UTC

Submitted for internal review, but I don't currently have appropriate software
to test with, so inclusion may very well not happen this time around.

Comment 6 Daniel Riek 2006-05-17 19:55:27 UTC

PM ack for U4, putting on ProposedList.

Would this be a Beta Blocker?

Comment 10 Jason Baron 2006-05-22 19:12:29 UTC

committed in stream U4 build 36.1. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/

Comment 12 Red Hat Bugzilla 2006-05-24 09:26:14 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 the 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-2006-0493.html