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Q311380: Stop Error Message in ObpDereferenceSecurityDescriptor

Article: Q311380
Product(s): Microsoft Windows NT
Version(s): 4.0,4.0 SP6
Operating System(s): 
Keyword(s): kbenv kberrmsg kbtool
Last Modified: 08-MAY-2002

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The information in this article applies to:

- Microsoft Windows NT Server versions 4.0, 4.0 SP6 
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SYMPTOMS
========

During high levels of computer stress, a pointer move/assignment may be
overwritten by another thread before that pointer is used by the owning thread.
When the pointer becomes invalid, you may receive the following error message on
a blue screen:

  Stop 00000050 (0xa8070f7c, 0x00000000, 0x00000000, 0x00000001)

CAUSE
=====

The failure actually occurs in nt!ObSetSecurityDescriptorInfo because of a
pointer move not being under a lock.

RESOLUTION
==========

A supported fix is now available from Microsoft, but it is only intended to
correct the problem described in this article and should be applied only to
systems experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the
fix. For a complete list of Microsoft Product Support Services phone numbers and
information on support costs, please go to the following address on the World
Wide Web:

  http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are normally incurred for support calls may
be canceled, if a Microsoft Support Professional determines that a specific
update will resolve your problem. Normal support costs will apply to additional
support questions and issues that do not qualify for the specific update in
question.

The English version of this fix should have the following file attributes or
later:

  Date       Time   Size         File name       Platform
  -------------------------------------------------------
  07-Dec-01  13:58    957,568    Ntkrnlmp.exe    Intel
  07-Dec-01  13:57    937,280    Nttoskrnl.exe   Intel

  07-Dec-01  13:54  1,403,712    Ntkrnlmp.exe    Alpha
  07-Dec-01  13:54  1,375,680    Nttoskrnl.exe   Alpha

NOTE: Due to file dependencies, this hotfix requires Microsoft Windows NT 4.0
Service Pack 6a.



STATUS
======

Microsoft has confirmed this to be a problem in Windows NT 4.0.


Additional query words:

======================================================================
Keywords          : kbenv kberrmsg kbtool 
Technology        : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400sp6 kbWinNTS400search kbWinNTS400
Version           : :4.0,4.0 SP6
Hardware          : ALPHA x86
Issue type        : kbbug
Solution Type     : kbfix

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