The inheritable ACEs may not be propagated correctly to the child object on an NFS share when you enable the KeepInheritance registry value in Windows Server 2008 R2

Applies to: Windows 7Windows Server 2008 R2

Symptoms


Consider the following scenario:
  • You start the Services for Network File System (NFS) on a server that is running Windows Server 2008 R2.
  • You share a folder on the NFS server.
  • You enable the KeepInheritance registry value to set inheritable access control entries (ACEs).
  • You create a child object on the NFS share from an NFS client. For example, you create a file or sub-folder on the NFS share.
In this scenario, the inheritable ACEs may not be propagated correctly to the child object. If a legitimate user tries to access the child object on a client, the user receives an “Access is denied” error message.

Note The issue does not occur in Windows Server 2008.

Cause


This issue occurs because of an issue in the Server for NFS kernel driver that is included in Windows Server 2008 R2. Therefore, some flags are not set correctly on the child objects.

Resolution


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 Server 2008 R2. Additionally, you must have Services for NFS installed.

Registry information

To use the hotfix, you do not have to change the registry.

Restart requirement

You do not have to restart the computer after you apply this hotfix if the affected files are not used.

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 Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 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 7/Windows Server 2008 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 MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Msnfsflt.mofNot applicable4,46010-Jun-200921:00Not applicable
Msnfsflt.sys6.1.7600.1638531,23213-Jul-200923:24x64
Nfs-servercore-ppdlic.xrm-msNot applicable3,00120-Aug-201005:57Not applicable
Nfssvc.exe6.1.7600.1638539,93614-Jul-200901:39x64
Nfssvr.mofNot applicable6,19510-Jun-200921:00Not applicable
Nfssvr.sys6.1.7600.20785739,32820-Aug-201003:04x64
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Msnfsflt.mofNot applicable4,46010-Jun-200921:06Not applicable
Msnfsflt.sys6.1.7600.1638570,65613-Jul-200923:19IA-64
Nfs-servercore-ppdlic.xrm-msNot applicable3,00120-Aug-201004:35Not applicable
Nfssvc.exe6.1.7600.1638588,06414-Jul-200901:44IA-64
Nfssvr.mofNot applicable6,19510-Jun-200921:06Not applicable
Nfssvr.sys6.1.7600.207851,584,12820-Aug-201002:07IA-64

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 Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2
File nameAmd64_microsoft-windows-nfs-servercore_31bf3856ad364e35_6.1.7600.20785_none_b8233c983a1a50e4.manifest
File versionNot applicable
File size41,883
Date (UTC)20-Aug-2010
Time (UTC)09:43
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameIa64_microsoft-windows-nfs-servercore_31bf3856ad364e35_6.1.7600.20785_none_5c06450a81bae8aa.manifest
File versionNot applicable
File size41,881
Date (UTC)20-Aug-2010
Time (UTC)09:40