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The memory of the nonpaged pool may leak when you enable IPsec on a computer that is running Windows Server 2008 R2 or Windows 7Article ID: 976658 - View products that this article applies to. On This PageSYMPTOMSWhen
you enable Internet
Protocol security (IPsec)
for the
network communication on a computer that is running
Windows Server 2008 R2 or Windows 7, the memory of the nonpaged pool may leak.
This memory
leak can
cause the computer to stop responding. Therefore,
you may
have to restart the computer. Additionally,
the
following event may
be logged
in the Application log: Event Type: Error Consider the following scenario as an example:
CAUSEThe issue is caused by the Tcpip.sys driver. After IPsec is
enabled,
the networking
layer of the TCP/IP stack invokes the IPsec module for each IP datagram.
When the IPsec module asynchronously finishes the call and
reports a failure, the Tcpip.sys driver incorrectly
leaks
the nonpaged pool memory. RESOLUTIONHotfix informationA 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 Web site: http://support.microsoft.com/contactus/?ws=support 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.
(http://support.microsoft.com/contactus/?ws=support)
PrerequisitesTo apply this hotfix, the computer must be running one of the following operating systems:
Restart requirementYou must restart the computer after you apply this hotfix.Hotfix replacement informationThis hotfix does not replace any other hotfix.File informationThe 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.Windows Server 2008 R2 and Windows 7 file information noteThe MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.For all supported x86-based versions of Windows 7Collapse this table
For all supported x64-based versions of Windows Server 2008 R2 and of Windows 7Collapse this table
For all supported IA-64-based versions of Windows Server 2008 R2Collapse this table
STATUSMicrosoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section. MORE INFORMATIONFor more information about
software update terminology, click the following article number to view the
article in the Microsoft Knowledge Base: 824684
(http://support.microsoft.com/kb/824684/LN/
)
Description of the standard terminology that is used to describe Microsoft software updatesAdditional file information for Windows Server 2008 R2 and for Windows 7Additional files for all supported x86-based versions of Windows 7Collapse this table
Additional files for all supported x64-based versions of Windows Server 2008 R2 and of Windows 7Collapse this table
Additional files for all supported IA-64-based versions of Windows Server 2008 R2Collapse this table
REFERENCESFor more information about the IKE
protocol version 2, visit the following
Microsoft Web site: http://technet.microsoft.com/en-us/library/dd469817(WS.10).aspx
(http://technet.microsoft.com/en-us/library/dd469817(WS.10).aspx)
For more information about Request for Comments (RFC) 4306, visit the following Web site: Internet Key Exchange (IKEv2) Protocol: http://www.ietf.org/rfc/rfc4306.txt
(http://support.microsoft.com/?scid=internet%20key%20exchange%20%28ikev2%29%20protocol%3a%20http%3a%2f%2fwww.ietf.org%2frfc%2frfc4306.txt)
PropertiesArticle ID: 976658 - Last Review: December 8, 2009 - Revision: 1.1 APPLIES TO
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