Data corruption and network issues when you run a WFP-based application on a computer that is running Windows

Symptoms

Consider the following scenario:
  • You have a computer that is running Windows 7 or Windows Server 2008 R2 and that has hotfix 2735855 installed. Or, you have a computer that is running Windows 8 or Windows Server 2012. 
  • You run an application that was developed by using the Windows Filtering Platform (WFP) API. For example, you run antivirus or security software that provides network filtering capabilities by using third-party WFP callout drivers.
In this scenario, data corruption occurs, and the network connection disconnects unexpectedly.

Cause

This issue occurs because the delivery state variables are updated incorrectly when data is in delivery. Additionally, data is not copied in a low memory situation. Therefore, the application does not receive the pending delivery data that is already acknowledged.

Resolution

Cumulative Update information

To resolve this issue in Windows 8 or Windows Server 2012, install the cumulative update 2811660. For more information about how to obtain this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2811660 Windows 8 and Windows Server 2012 cumulative update: March 2013

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 SP1.

For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply this hotfix, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.
File information

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about software update terminology, 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 file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
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Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
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Additional files for all supported IA-64-based versions of Windows Server 2008 R2
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Özellikler

Makale No: 2789397 - Son İnceleme: 13 Mar 2013 - Düzeltme: 1

Windows 7 Service Pack 1, Windows 7 Enterprise, Windows 7 Home Basic, Windows 7 Professional, Windows 7 Starter, Windows 7 Ultimate, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Datacenter, Windows Server 2008 R2 Enterprise, Windows Server 2008 R2 for Itanium-Based Systems, Windows Server 2008 R2 Foundation, Windows Server 2008 R2 Standard, Windows Web Server 2008 R2, Windows 8, Windows 8 Enterprise, Windows 8 Pro, Windows Server 2012 Datacenter, Windows Server 2012 Datacenter, Windows Server 2012 Essentials, Windows Server 2012 Foundation, Windows Server 2012 Foundation, Windows Server 2012 Standard, Windows Server 2012 Standard

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