Bug 126126 - CAN-2004-0565 Information leak on Linux/ia64
Summary: CAN-2004-0565 Information leak on Linux/ia64
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: kernel
Version: 3.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Jason Baron
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2004-06-16 12:40 UTC by Mark J. Cox
Modified: 2013-03-06 05:57 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2004-12-23 20:48:00 UTC


Attachments (Terms of Use)


Links
System ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2004:689 normal SHIPPED_LIVE Important: kernel security update 2004-12-23 05:00:00 UTC

Description Mark J. Cox 2004-06-16 12:40:40 UTC
Linux ia64 kernels have a floating point leak because the context
switch code checks just the psr.mfh bit and doesn't look at who the
FPH owner is.  This allows a malicious program to set the MFH bit and
look at the 
registers of another possibly sensitive process.

Patch available and committed:

http://lia64.bkbits.net:8080/to-linus-2.5/cset@1.1726.29.7

CAN-2004-0565 Affects: 3AS 3ES 3WS

Comment 1 Josh Bressers 2004-06-18 15:15:49 UTC

*** This bug has been marked as a duplicate of 124734 ***

Comment 2 Ernie Petrides 2004-12-21 01:38:31 UTC
A fix for this problem has just been committed to the RHEL3 E5
patch pool this evening (in kernel version 2.4.21-27.0.1.EL).


Comment 3 Ernie Petrides 2004-12-22 21:58:18 UTC
A fix for this problem has also been committed to the RHEL3 U5
patch pool this evening (in kernel version 2.4.21-27.4.EL).


Comment 4 Josh Bressers 2004-12-23 20:48:00 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-2004-689.html



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