Bug 159921 - CAN-2005-1763 x86_64 crash (x86_64-ptrace-overflow)
CAN-2005-1763 x86_64 crash (x86_64-ptrace-overflow)
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
x86_64 Linux
medium Severity medium
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Assigned To: Peter Staubach
Brian Brock
: Security
Depends On:
Blocks: 156322
  Show dependency treegraph
Reported: 2005-06-09 05:47 EDT by Mark J. Cox
Modified: 2007-11-30 17:07 EST (History)
2 users (show)

See Also:
Fixed In Version: RHSA-2005-514
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2005-10-05 09:24:44 EDT
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Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Proposed patch (765 bytes, patch)
2005-07-22 09:30 EDT, Peter Staubach
no flags Details | Diff

  None (edit)
Description Mark J. Cox 2005-06-09 05:47:31 EDT
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.

Comment 1 Peter Staubach 2005-07-22 09:30:12 EDT
Created attachment 117054 [details]
Proposed patch
Comment 6 Red Hat Bugzilla 2005-10-05 09:24:45 EDT
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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