Application can't connect to iSCSI servers in Windows Server 2012 R2 or Windows Server 2012

This article describes an issue that occurs when iSCSI APIs are called in Windows Server 2012 R2 or Windows Server 2012 R2. A hotfix is available to fix this issue. The hotfix has a prerequisite.
Symptoms
When this issue occurs, iSCSI discovery library API calls fail even though there are no buffer parameters for the failing API call. Additionally, you receive an error message that resembles the following:

The data area passed to a system call is too small.
Resolution
To fix this issue, we have released a hotfix. Even though this issue is observed only in Windows Server 2012 R2 or Windows Server 2012, the hotfix also applies to Windows 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 have to have 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's described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there's a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section doesn't appear, submit a request to Microsoft Customer Service and Support to get 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 don't qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, go to the following Microsoft website: Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you don't see your language, it's because a hotfix isn't available for that language.

Prerequisites

To apply this hotfix on Windows 8.1 or Windows Server 2012 R2, you must have the April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed.

Registry information

To apply this hotfix, you don't 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 doesn't replace a previously released hotfix.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology that Microsoft uses to describe software updates.
File Information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). Be aware that dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time bias. The dates and times may also change when you run certain operations on the files.

Windows 8 and Windows Server 2012

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.

Notes
  • 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:
    Version Product Milestone Service branch
    6.2.920 0.16 xxxWindows 8 or Windows Server 2012RTMGDR
    6.2.920 0.21xxxWindows 8 or Windows Server 2012RTMLDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed 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.
x86 Windows 8
File nameFile versionFile sizeDateTimePlatform
Iscsi.psd1Not applicable93102-Jun-201214:33Not applicable
Iscsicli.exe6.2.9200.16384146,94426-Jul-201203:20x86
Iscsiconnection.cdxmlNot applicable12,92702-Jun-201214:33Not applicable
Iscsidsc.dll6.2.9200.2168853,24810-Nov-201514:40x86
Iscsied.dll6.2.9200.163849,72826-Jul-201203:18x86
Iscsiexe.dll6.2.9200.21688115,20010-Nov-201514:40x86
Iscsisession.cdxmlNot applicable9,38702-Jun-201220:26Not applicable
Iscsitarget.cdxmlNot applicable14,98202-Jun-201220:26Not applicable
Iscsitargetportal.cdxmlNot applicable12,94302-Jun-201220:26Not applicable
Iscsium.dll6.2.9200.1638429,69626-Jul-201203:18x86
Iscsiwmi.dll6.2.9200.1638467,07226-Jul-201203:18x86
Iscsiwmiv2.dll6.2.9200.1638492,67226-Jul-201203:18x86
x64 Windows 8 and Windows Server 2012
File nameFile versionFile sizeDateTimePlatform
Iscsi.psd1Not applicable93102-Jun-201214:33Not applicable
Iscsicli.exe6.2.9200.16384151,55226-Jul-201203:08x64
Iscsiconnection.cdxmlNot applicable12,92702-Jun-201214:33Not applicable
Iscsidsc.dll6.2.9200.2168875,77610-Nov-201514:29x64
Iscsied.dll6.2.9200.1638410,75226-Jul-201203:05x64
Iscsiexe.dll6.2.9200.21688151,55210-Nov-201514:29x64
Iscsisession.cdxmlNot applicable9,38702-Jun-201220:26Not applicable
Iscsitarget.cdxmlNot applicable14,98202-Jun-201220:26Not applicable
Iscsitargetportal.cdxmlNot applicable12,94302-Jun-201220:26Not applicable
Iscsium.dll6.2.9200.1638437,37626-Jul-201203:05x64
Iscsiwmi.dll6.2.9200.1638479,87226-Jul-201203:05x64
Iscsiwmiv2.dll6.2.9200.16384126,97626-Jul-201203:05x64
Iscsi.psd1Not applicable93102-Jun-201214:33Not applicable
Iscsicli.exe6.2.9200.16384146,94426-Jul-201203:20x86
Iscsiconnection.cdxmlNot applicable12,92702-Jun-201214:33Not applicable
Iscsidsc.dll6.2.9200.2168853,24810-Nov-201514:40x86
Iscsied.dll6.2.9200.163849,72826-Jul-201203:18x86
Iscsisession.cdxmlNot applicable9,38702-Jun-201220:26Not applicable
Iscsitarget.cdxmlNot applicable14,98202-Jun-201220:26Not applicable
Iscsitargetportal.cdxmlNot applicable12,94302-Jun-201220:26Not applicable
Iscsium.dll6.2.9200.1638429,69626-Jul-201203:18x86
Iscsiwmi.dll6.2.9200.1638467,07226-Jul-201203:18x86
Iscsiwmiv2.dll6.2.9200.1638492,67226-Jul-201203:18x86

Windows 8.1 and Windows Server 2012 R2

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.

Notes
  • 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:
    Version Product Milestone Service branch
    6.3.960 0.17 xxxWindows 8.1 or Windows Server 2012 R2RTMGDR
    6.3.960 0.18 xxxWindows 8.1 or Windows Server 2012 R2RTMGDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed 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.
x86 Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Iscsi.psd1Not applicable93118-Jun-201312:31Not applicable
Iscsicli.exe6.3.9600.17415147,45629-Oct-201401:48x86
Iscsiconnection.cdxmlNot applicable12,92718-Jun-201312:31Not applicable
Iscsidsc.dll6.3.9600.1812155,29606-Nov-201521:37x86
Iscsied.dll6.3.9600.174159,72829-Oct-201401:58x86
Iscsiexe.dll6.3.9600.18121116,22406-Nov-201521:27x86
Iscsisession.cdxmlNot applicable9,38718-Jun-201312:31Not applicable
Iscsitarget.cdxmlNot applicable14,98218-Jun-201312:31Not applicable
Iscsitargetportal.cdxmlNot applicable12,94318-Jun-201312:31Not applicable
Iscsium.dll6.3.9600.1741527,13629-Oct-201401:53x86
Iscsiwmi.dll6.3.9600.1741567,58429-Oct-201401:34x86
Iscsiwmiv2.dll6.3.9600.1741595,74429-Oct-201401:58x86
x64 Windows 8.1 and Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Iscsi.psd1Not applicable93118-Jun-201314:53Not applicable
Iscsicli.exe6.3.9600.17415151,55229-Oct-201402:29x64
Iscsiconnection.cdxmlNot applicable12,92718-Jun-201314:53Not applicable
Iscsidsc.dll6.3.9600.1812175,26406-Nov-201522:10x64
Iscsied.dll6.3.9600.1741511,26429-Oct-201402:43x64
Iscsiexe.dll6.3.9600.18121151,04006-Nov-201521:59x64
Iscsisession.cdxmlNot applicable9,38718-Jun-201314:53Not applicable
Iscsitarget.cdxmlNot applicable14,98218-Jun-201314:53Not applicable
Iscsitargetportal.cdxmlNot applicable12,94318-Jun-201314:53Not applicable
Iscsium.dll6.3.9600.1741533,79229-Oct-201402:36x64
Iscsiwmi.dll6.3.9600.1741576,80029-Oct-201402:12x64
Iscsiwmiv2.dll6.3.9600.17415130,56029-Oct-201402:42x64
Iscsi.psd1Not applicable93118-Jun-201312:31Not applicable
Iscsicli.exe6.3.9600.17415147,45629-Oct-201401:48x86
Iscsiconnection.cdxmlNot applicable12,92718-Jun-201312:31Not applicable
Iscsidsc.dll6.3.9600.1812155,29606-Nov-201521:37x86
Iscsied.dll6.3.9600.174159,72829-Oct-201401:58x86
Iscsisession.cdxmlNot applicable9,38718-Jun-201312:31Not applicable
Iscsitarget.cdxmlNot applicable14,98218-Jun-201312:31Not applicable
Iscsitargetportal.cdxmlNot applicable12,94318-Jun-201312:31Not applicable
Iscsium.dll6.3.9600.1741527,13629-Oct-201401:53x86
Iscsiwmi.dll6.3.9600.1741567,58429-Oct-201401:34x86
Iscsiwmiv2.dll6.3.9600.1741595,74429-Oct-201401:58x86

Additional file information

x86 Windows 8
File propertyValue
File nameUpdate.mum
File versionNot applicable
File size1,988
Date (UTC)10-Nov-2015
Time (UTC)22:09
PlatformNot applicable
File nameX86_266d44647d23124d42203603d80a2f67_31bf3856ad364e35_6.2.9200.21688_none_39e98cc6228a4192.manifest
File versionNot applicable
File size711
Date (UTC)10-Nov-2015
Time (UTC)22:09
PlatformNot applicable
File nameX86_microsoft-windows-i..i_initiator_service_31bf3856ad364e35_6.2.9200.21688_none_d7ac4215ff98ce1b.manifest
File versionNot applicable
File size28,405
Date (UTC)10-Nov-2015
Time (UTC)22:33
PlatformNot applicable
x86 Windows 8.1
File propertyValue
File nameUpdate.mum
File versionNot applicable
File size1,798
Date (UTC)07-Nov-2015
Time (UTC)11:16
PlatformNot applicable
File nameX86_ce4170de9f21e56b6e722495a1008c7d_31bf3856ad364e35_6.3.9600.18121_none_7c382ec662a29989.manifest
File versionNot applicable
File size711
Date (UTC)07-Nov-2015
Time (UTC)11:16
PlatformNot applicable
File nameX86_microsoft-windows-i..i_initiator_service_31bf3856ad364e35_6.3.9600.18121_none_6f511d133083cacc.manifest
File versionNot applicable
File size28,405
Date (UTC)07-Nov-2015
Time (UTC)11:19
PlatformNot applicable
x64 Windows 8.1 and Windows Server 2012 R2
File propertyValue
File nameAmd64_2be2ff8963400b5a69b5492f3de54a72_31bf3856ad364e35_6.3.9600.18121_none_62157778ff94b0e3.manifest
File versionNot applicable
File size715
Date (UTC)07-Nov-2015
Time (UTC)11:16
PlatformNot applicable
File nameAmd64_56138fd755cc76d61c555f7a24cb3258_31bf3856ad364e35_6.3.9600.18121_none_b494a15b09b17081.manifest
File versionNot applicable
File size715
Date (UTC)07-Nov-2015
Time (UTC)11:16
PlatformNot applicable
File nameAmd64_microsoft-windows-i..i_initiator_service_31bf3856ad364e35_6.3.9600.18121_none_cb6fb896e8e13c02.manifest
File versionNot applicable
File size28,409
Date (UTC)07-Nov-2015
Time (UTC)11:16
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,930
Date (UTC)07-Nov-2015
Time (UTC)11:16
PlatformNot applicable
File nameWow64_microsoft-windows-i..i_initiator_service_31bf3856ad364e35_6.3.9600.18121_none_d5c462e91d41fdfd.manifest
File versionNot applicable
File size14,638
Date (UTC)07-Nov-2015
Time (UTC)11:16
PlatformNot applicable
x64 Windows 8 and Windows Server 2012
File propertyValue
File nameAmd64_224260c0457cbf2d328cfe6ef077330b_31bf3856ad364e35_6.2.9200.21688_none_6ec6392757ea0add.manifest
File versionNot applicable
File size715
Date (UTC)10-Nov-2015
Time (UTC)22:09
PlatformNot applicable
File nameAmd64_93f55da3e27c68478336369b216ede2a_31bf3856ad364e35_6.2.9200.21688_none_97caf055c8bd2a5b.manifest
File versionNot applicable
File size1,072
Date (UTC)10-Nov-2015
Time (UTC)22:09
PlatformNot applicable
File nameAmd64_b06fb9eaa69addccb02eb47671e9d273_31bf3856ad364e35_6.2.9200.21688_none_c63172eed9808c2b.manifest
File versionNot applicable
File size715
Date (UTC)10-Nov-2015
Time (UTC)22:09
PlatformNot applicable
File nameAmd64_microsoft-windows-i..i_initiator_service_31bf3856ad364e35_6.2.9200.21688_none_33cadd99b7f63f51.manifest
File versionNot applicable
File size28,409
Date (UTC)10-Nov-2015
Time (UTC)22:09
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,673
Date (UTC)10-Nov-2015
Time (UTC)22:09
PlatformNot applicable
File nameWow64_microsoft-windows-i..i_initiator_service_31bf3856ad364e35_6.2.9200.21688_none_3e1f87ebec57014c.manifest
File versionNot applicable
File size14,638
Date (UTC)10-Nov-2015
Time (UTC)22:09
PlatformNot applicable
Properties

Article ID: 3102998 - Last Review: 12/08/2015 23:56:00 - Revision: 1.0

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 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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