Note: This is a beta release of Red Hat Bugzilla 5.0. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Also email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback here.
Bug 159921 - CAN-2005-1763 x86_64 crash (x86_64-ptrace-overflow)
Summary: CAN-2005-1763 x86_64 crash (x86_64-ptrace-overflow)
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.0
Hardware: x86_64
OS: Linux
Target Milestone: ---
: ---
Assignee: Peter Staubach
QA Contact: Brian Brock
Whiteboard: reported=20050601,source=vendorsec,pu...
Depends On:
Blocks: 156322
TreeView+ depends on / blocked
Reported: 2005-06-09 09:47 UTC by Mark J. Cox
Modified: 2007-11-30 22:07 UTC (History)
2 users (show)

Fixed In Version: RHSA-2005-514
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2005-10-05 13:24:44 UTC
Target Upstream Version:

Attachments (Terms of Use)
Proposed patch (deleted)
2005-07-22 13:30 UTC, Peter Staubach
no flags Details | Diff

System ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2005:514 qe-ready SHIPPED_LIVE Important: Updated kernel packages available for Red Hat Enterprise Linux 4 Update 2 2005-10-05 04:00:00 UTC

Description Mark J. Cox 2005-06-09 09:47:31 UTC
There was a "off by one quad word" error in x86_64 ptrace. This was originally
thought to be unexploitable because it will only store into a unused area, but
better to plug it.  However Andi Kleen stated that it allows a write to a word
40 bytes into the page above the kernel stack of a process which may be exploitable.;a=commitdiff;h=c4d1fcf3a2ea89b6d6221fa8b4588c77aff50995

Comment 1 Peter Staubach 2005-07-22 13:30:12 UTC
Created attachment 117054 [details]
Proposed patch

Comment 6 Red Hat Bugzilla 2005-10-05 13:24:45 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.

Note You need to log in before you can comment on or make changes to this bug.