Microsoft KB Archive/921604

= FIX: WMI corrupts the pool from which the CommandLine buffer is allocated in Windows Services for UNIX 3.5 =

Article ID: 921604

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft Windows Services for UNIX 3.5

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SYMPTOMS
When you enumerate a Microsoft Win32 process in Microsoft Windows Services for UNIX 3.5, Windows Management Instrumentation (WMI) corrupts the pool from which the CommandLine buffer is allocated.



CAUSE
This problem occurs because the CommandLine buffer in the RTL_USER_PROCESS_PARAMETERS structure is of the UNICODE_STRING type. Because the buffer is of a wide-character type, the MaximumLength property is always even. The Microsoft Interix process CommandLine buffer is of a character type. Therefore, the MaximumLength property can be either odd or even. Because WMI assumes that the MaximumLength property is even, WMI corrupts the pool from which the CommandLine buffer is allocated when you enumerate the Win32 process.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that this article describes. Apply this hotfix only to systems that are experiencing this specific problem.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
No prerequisites are required.

Restart requirement
You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: Unix

Keywords: kbfix kbbug kbhotfixserver kbqfe kbpubtypekc KB921604

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