Bug 146083 - 20041212 Clear ebp on sysenter return
Summary: 20041212 Clear ebp on sysenter return
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.0
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: Dave Jones
QA Contact:
Whiteboard: public=20041212,impact=low
Depends On:
Blocks: 144195
TreeView+ depends on / blocked
Reported: 2005-01-25 09:42 UTC by Mark J. Cox
Modified: 2015-01-04 22:16 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2005-02-18 17:20:54 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2005:092 0 important SHIPPED_LIVE Important: kernel security update 2005-02-18 05:00:00 UTC

Description Mark J. Cox 2005-01-25 09:42:45 UTC
A small information leak was found by Brad Spengler, but it isn't thought to be
useful for exploitation.  Since this was fixed in FC* adding a tracking bug for EL4.

Fixed in 2.6: 

Comment 1 Arjan van de Ven 2005-02-10 02:21:08 UTC
this patch is bogus for rhel4 since we don't enable sysenter at all.

Comment 2 Dave Jones 2005-02-10 03:43:08 UTC
we do if we run 32bit OS on a CPU with NX.

Comment 3 Josh Bressers 2005-02-18 17:20:54 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.


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