Computer freezes when WFP leaks nonpaged pool memory in Windows Server 2012 R2 or Windows Server 2012

This article describes an issue in Windows Filtering Platform (WFP) in Windows Server 2012 R2 or Windows Server 2012. A hotfix is available to fix this issue. The hotfix has a prerequisite.
Symptoms
When this issue occurs, you can't access resources reliably, and the computer freezes when the memory is used up. 
Resolution
To resolve this issue, we have released a hotfix. Even though this issue has been observed only in Windows Server 2012 R2 or Windows Server 2012, the hotfix also applies to Windows 8.1, Windows RT 8.1, and Windows 8.

Important If you install a language pack after you install this hotfix, you must reinstall this hotfix. Therefore, we recommend that you install any language packs that you need before you install this hotfix. For more information, see Add language packs to Windows.

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 this specific problem.

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, submit a request to 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 in Windows 8.1 or Windows Server 2012 R2, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed.

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 8.1 and Windows Server 2012 R2 file information and notes

Important Windows 8.1 hotfixes and Windows Server 2012 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8.1/Windows Server 2012 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    VersionProductMilestoneService branch
    6.3.960 0.17xxxWindows 8.1, Windows RT 8.1, and Windows Server 2012 R2RTMGDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.3.9600.17924334,68003-Jul-201505:25x86
Bfe.dll6.3.9600.17924570,36802-Jul-201520:13x86
Fwpuclnt.dll6.3.9600.17924272,38402-Jul-201520:08x86
Ikeext.dll6.3.9600.17924734,20802-Jul-201520:10x86
Nshwfp.dll6.3.9600.17924561,66402-Jul-201519:58x86
Bfe.dll6.3.9600.17924570,36802-Jul-201520:13x86
Fwpuclnt.dll6.3.9600.17924272,38402-Jul-201520:08x86
Ikeext.dll6.3.9600.17924734,20802-Jul-201520:10x86
Networksecurity-ppdlic.xrm-msNot applicable3,05902-Jul-201522:18Not applicable
Nshwfp.dll6.3.9600.17924561,66402-Jul-201519:58x86
Wfplwfs.sys6.3.9600.1748569,44010-Nov-201417:47x86
For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.3.9600.17924471,89603-Jul-201505:21x64
Bfe.dll6.3.9600.17924845,31202-Jul-201519:21x64
Fwpuclnt.dll6.3.9600.17924422,40002-Jul-201519:13x64
Ikeext.dll6.3.9600.179241,084,41602-Jul-201519:21x64
Nshwfp.dll6.3.9600.17924713,21602-Jul-201518:55x64
Bfe.dll6.3.9600.17924845,31202-Jul-201519:21x64
Fwpuclnt.dll6.3.9600.17924422,40002-Jul-201519:13x64
Ikeext.dll6.3.9600.179241,084,41602-Jul-201519:21x64
Networksecurity-ppdlic.xrm-msNot applicable3,05902-Jul-201521:46Not applicable
Nshwfp.dll6.3.9600.17924713,21602-Jul-201518:55x64
Wfplwfs.sys6.3.9600.17485136,51210-Nov-201418:06x64
Fwpuclnt.dll6.3.9600.17924272,38402-Jul-201520:08x86
Nshwfp.dll6.3.9600.17924561,66402-Jul-201519:58x86
For all supported Windows RT 8.1
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.3.9600.17924301,92803-Jul-201505:32Not applicable
Bfe.dll6.3.9600.17924528,89602-Jul-201518:32Not applicable
Fwpuclnt.dll6.3.9600.17924246,78402-Jul-201518:27Not applicable
Ikeext.dll6.3.9600.17924634,36802-Jul-201518:29Not applicable
Nshwfp.dll6.3.9600.17924559,61602-Jul-201518:19Not applicable
Bfe.dll6.3.9600.17924528,89602-Jul-201518:32Not applicable
Fwpuclnt.dll6.3.9600.17924246,78402-Jul-201518:27Not applicable
Ikeext.dll6.3.9600.17924634,36802-Jul-201518:29Not applicable
Networksecurity-ppdlic.xrm-msNot applicable3,05902-Jul-201520:05Not applicable
Nshwfp.dll6.3.9600.17924559,61602-Jul-201518:19Not applicable
Wfplwfs.sys6.3.9600.1748570,98410-Nov-201417:52Not applicable

Windows 8 and Windows Server 2012 file information and notes

Important Windows 8 hotfixes and Windows Server 2012 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8/Windows Server 2012" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    VersionProductMilestoneService branch
    6.2.920 0.21xxxWindows 8 and Windows Server 2012RTMLDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 8
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.2.9200.21615343,36808-Sep-201513:47x86
For all supported x64-based versions of Windows 8 and of Windows Server 2012
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.2.9200.21614442,71208-Sep-201514:58x64

Additional file information

Additional file information for Windows 8.1 and for Windows Server 2012 R2
Additional files for all supported x86-based versions of Windows 8.1
File propertyValue
File nameX86_2339cc3bd3b9bdd613e7240238f0c5bf_31bf3856ad364e35_6.3.9600.17924_none_9007d500091e1373.manifest
File versionNot applicable
File size704
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameX86_a4db4a53b3b05ab5d5581b68cd9dc0d0_31bf3856ad364e35_6.3.9600.17924_none_92319d8e5e4e6974.manifest
File versionNot applicable
File size710
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameX86_b2d69a2056837468e55cd7e380de44b0_31bf3856ad364e35_6.3.9600.17924_none_4a701760ff8760bd.manifest
File versionNot applicable
File size708
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameX86_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.3.9600.17924_none_eb7c0580d0b67d82.manifest
File versionNot applicable
File size2,582
Date (UTC)03-Jul-2015
Time (UTC)05:38
PlatformNot applicable
File nameX86_microsoft-windows-network-security-winpe_31bf3856ad364e35_6.3.9600.17924_none_7ae9ba5f32488e4e.manifest
File versionNot applicable
File size97,109
Date (UTC)02-Jul-2015
Time (UTC)22:19
PlatformNot applicable
File nameX86_microsoft-windows-network-security_31bf3856ad364e35_6.3.9600.17924_none_6205089445f3ce2c.manifest
File versionNot applicable
File size95,167
Date (UTC)03-Jul-2015
Time (UTC)05:38
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2
File propertyValue
File nameAmd64_168a8314bdb5dbd4e9685221fb06a678_31bf3856ad364e35_6.3.9600.17924_none_dcb040cd45ea02a7.manifest
File versionNot applicable
File size712
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameAmd64_2331681934d3a31844c805c9b2ce2344_31bf3856ad364e35_6.3.9600.17924_none_d1286b329ff6322d.manifest
File versionNot applicable
File size708
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameAmd64_a532a088df4289e67a07a17eb70fc1ae_31bf3856ad364e35_6.3.9600.17924_none_08f28afc89cccb5e.manifest
File versionNot applicable
File size712
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameAmd64_bd8e5751fda13141fbef09ff07b65c39_31bf3856ad364e35_6.3.9600.17924_none_8b16e4e1528bec8d.manifest
File versionNot applicable
File size714
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameAmd64_e3936a43690f9376a852317eb0022333_31bf3856ad364e35_6.3.9600.17924_none_5524379b9d3418d7.manifest
File versionNot applicable
File size708
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameAmd64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.3.9600.17924_none_479aa1048913eeb8.manifest
File versionNot applicable
File size2,584
Date (UTC)03-Jul-2015
Time (UTC)05:42
PlatformNot applicable
File nameAmd64_microsoft-windows-network-security-winpe_31bf3856ad364e35_6.3.9600.17924_none_d70855e2eaa5ff84.manifest
File versionNot applicable
File size97,115
Date (UTC)02-Jul-2015
Time (UTC)22:24
PlatformNot applicable
File nameAmd64_microsoft-windows-network-security_31bf3856ad364e35_6.3.9600.17924_none_be23a417fe513f62.manifest
File versionNot applicable
File size95,173
Date (UTC)03-Jul-2015
Time (UTC)05:42
PlatformNot applicable
File nameWow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.3.9600.17924_none_51ef4b56bd74b0b3.manifest
File versionNot applicable
File size1,183
Date (UTC)02-Jul-2015
Time (UTC)22:17
PlatformNot applicable
File nameWow64_microsoft-windows-network-security_31bf3856ad364e35_6.3.9600.17924_none_c8784e6a32b2015d.manifest
File versionNot applicable
File size19,282
Date (UTC)02-Jul-2015
Time (UTC)22:19
PlatformNot applicable
Additional files for all supported Windows RT 8.1
File propertyValue
File nameArm_490d4cbd5af1dffd3e6eaa30b3d8cc6f_31bf3856ad364e35_6.3.9600.17924_none_ed4ff04c54fa4ae4.manifest
File versionNot applicable
File size708
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameArm_a22e1bf0a395b4845012adfbf61876a0_31bf3856ad364e35_6.3.9600.17924_none_5cf7ac0de6f66cf5.manifest
File versionNot applicable
File size710
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameArm_cfcbbaf4012c77600191398070c36c96_31bf3856ad364e35_6.3.9600.17924_none_2383f4fd2149a15d.manifest
File versionNot applicable
File size704
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameArm_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.3.9600.17924_none_eb7e77d8d0b39c48.manifest
File versionNot applicable
File size2,582
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
File nameArm_microsoft-windows-network-security-winpe_31bf3856ad364e35_6.3.9600.17924_none_7aec2cb73245ad14.manifest
File versionNot applicable
File size97,109
Date (UTC)02-Jul-2015
Time (UTC)20:06
PlatformNot applicable
File nameArm_microsoft-windows-network-security_31bf3856ad364e35_6.3.9600.17924_none_62077aec45f0ecf2.manifest
File versionNot applicable
File size95,227
Date (UTC)03-Jul-2015
Time (UTC)05:35
PlatformNot applicable
Additional file information for Windows 8 and for Windows Server 2012
Additional files for all supported x86-based versions of Windows 8
File propertyValue
 File name Update.mum
 File version Not applicable
 File size 1,609
 Date (UTC) 09-Sep-2015
 Time (UTC) 17:01
 Platform Not applicable
 File name X86_985dc7f80bec9cf3b871a477c2feb391_31bf3856ad364e35_6.2.9200.21617_none_0578f6eb0333f390.manifest
 File version Not applicable
 File size 708
 Date (UTC) 09-Sep-2015
 Time (UTC) 17:01
 Platform Not applicable
 File name X86_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.2.9200.21617_none_541eb2d79f968847.manifest
 File version Not applicable
 File size 2,579
 Date (UTC) 08-Sep-2015
 Time (UTC) 13:53
 Platform Not applicable
Additional files for all supported x64-based versions of Windows 8 and of Windows Server 2012
File propertyValue
 File name Amd64_b52e20c4bc400d07ea36f4abd25e8734_31bf3856ad364e35_6.2.9200.21617_none_7269e1778e7f79c2.manifest
 File version Not applicable
 File size 712
 Date (UTC) 09-Sep-2015
 Time (UTC) 17:01
 Platform Not applicable
 File name Amd64_c0ca83fb99b4e83ae25b2b252205a0cc_31bf3856ad364e35_6.2.9200.21617_none_2a1525893e1bb55f.manifest
 File version Not applicable
 File size 712
 Date (UTC) 09-Sep-2015
 Time (UTC) 17:01
 Platform Not applicable
 File name Amd64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.2.9200.21617_none_b03d4e5b57f3f97d.manifest
 File version Not applicable
 File size 2,581
 Date (UTC) 08-Sep-2015
 Time (UTC) 15:02
 Platform Not applicable
 File name Update.mum
 File version Not applicable
 File size 2,492
 Date (UTC) 09-Sep-2015
 Time (UTC) 17:01
 Platform Not applicable
 File name Wow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.2.9200.21617_none_ba91f8ad8c54bb78.manifest
 File version Not applicable
 File size 1,183
 Date (UTC) 08-Sep-2015
 Time (UTC) 13:52
 Platform Not applicable
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
See the terminology that Microsoft uses to describe software updates.
Properties

Article ID: 3077354 - Last Review: 10/13/2015 23:08:00 - Revision: 2.0

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1, Windows Server 2012 Datacenter, Windows Server 2012 Standard, Windows Server 2012 Essentials, Windows Server 2012 Foundation, Windows 8 Enterprise, Windows 8 Pro, Windows 8

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