Bug 165547

Summary: CAN-2005-2100 4G/4G split bounds checking
Product: Red Hat Enterprise Linux 4 Reporter: Mark J. Cox <mjc>
Component: kernelAssignee: Ingo Molnar <mingo>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: high Docs Contact:
Priority: medium    
Version: 4.0CC: mingo, security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: reported=20041222,impact=important,public=20051004,source=redhat
Fixed In Version: RHSA-2005-514 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2005-10-05 13:49:57 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:    
Bug Blocks: 156322    
Attachments:
Description Flags
Proposed (revised) patch from Ingo none

Description Mark J. Cox 2005-08-10 12:25:32 UTC 
jbaron said to rhkernel-list "below, is a patch i've been tracking from Ingo,
but i'm not sure its been posted here. Not sure if there is a bugzilla, but it
is a real security issue. Afaict, the check ensures that kernel access to
userspace read and write paths is within its proper bounds for the 4/4 split. i
expect Ingo 
to ack this ;)"
Comment 1 Mark J. Cox 2005-08-10 12:25:33 UTC 
Created attachment 117600 [details]
Proposed (revised) patch from Ingo
Comment 7 Mark J. Cox 2005-10-04 15:30:09 UTC 
Removing embargo
Comment 8 Red Hat Bugzilla 2005-10-05 13:49:58 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-2005-514.html