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POSIX subsystem crashes when you try to create a Telnet session in Windows

View products that this article applies to.

Symptoms

Assume that a computer is running a Telnet service of Subsystem for UNIX-based Applications in Windows 8, Windows Server 2012, Windows 7, or Windows Server 2008 R2. You establish a Telnet session on a client, and then close the Telnet session without closing the other processes that were spawned in the same Telnet session. When you try to create a new Telnet session, the Psxss.exe process crashes.

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Cause

This issue occurs because a property of the Psxss.exe process is not updated when the Telnet session is closed. Therefore, when a new session is created, the property is invalid, and it causes the crash.

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Resolution

To resolve this issue, we have released a hotfix for Windows 8, Windows Server 2012, Windows 7, or Windows Server 2008 R2.
Before you apply the hotfix, check out the "Prerequisites" section in this article.

Hotfix information

Important Do not install a language pack after you install this hotfix. If you do, the language-specific changes in the hotfix will not be applied, and you will have to reinstall the hotfix. For more information, see Add language packs to Windows.

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:
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.

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Hotfix detail information

Prerequisites

To apply this hotfix, you must install Service Pack 1 for Windows 7 or Windows Server 2008 R2. And there is no prerequisite for Windows 8 and Windows Server 2012.

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 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:
    Version Product Milestone Service branch
    6.2.920 0.16xxxWindows 8 and Windows Server 2012RTMGDR
    6.2.920 0.21xxxWindows 8 and 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 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
Baseu.dnlNot applicable16602-Jun-201214:54Not applicable
Baseu.prmNot applicable1,15302-Jun-201214:54Not applicable
Desktop.iniNot applicable8102-Jun-201214:54Not applicable
Disablesetuid.iniNot applicable9202-Jun-201214:54Not applicable
Download utilities for subsystem for unix-based applications.lnkNot applicable41225-Jul-201220:37Not applicable
Download.urlNot applicable7102-Jun-201214:54Not applicable
Enablesetuid.iniNot applicable9202-Jun-201214:54Not applicable
Posix.exe6.2.9200.1638482,94426-Jul-201203:20x86
Posixsscom.dll6.2.9200.163846,65626-Jul-201203:19x86
Psxdll.dll6.2.9200.21435289,28002-Apr-201500:40x86
Psxdllsvr.dll6.2.9200.21435339,45602-Apr-201500:40x86
Psxdrv.sys6.2.9200.163848,19226-Jul-201202:38x86
Psxrun.exe6.2.9200.1638441,98426-Jul-201203:20x86
Psxss.exe6.2.9200.21439650,24002-Apr-201500:40x86
Sua-ppdlic.xrm-msNot applicable2,87302-Apr-201501:14Not applicable
Suares.dll6.2.9200.163842,04826-Jul-201202:45x86
What's new in subsystem for unix-based applications.lnkNot applicable1,25625-Jul-201220:37Not applicable
For all supported x64-based versions of Windows 8 and of Windows Server 2012
File nameFile versionFile sizeDateTimePlatform
Baseu.dnlNot applicable16602-Jun-201214:54Not applicable
Baseu.prmNot applicable1,15302-Jun-201214:54Not applicable
Desktop.iniNot applicable8102-Jun-201214:54Not applicable
Disablesetuid.iniNot applicable9202-Jun-201214:54Not applicable
Download utilities for subsystem for unix-based applications.lnkNot applicable41225-Jul-201220:33Not applicable
Download.urlNot applicable7102-Jun-201214:54Not applicable
Enablesetuid.iniNot applicable9202-Jun-201214:54Not applicable
Posix.exe6.2.9200.1638489,08826-Jul-201203:08x64
Psxdll.dll6.2.9200.21435315,90402-Apr-201500:38x64
Psxdllsvr.dll6.2.9200.21435364,03202-Apr-201500:38x64
Psxdrv.sys6.2.9200.163849,72826-Jul-201202:30x64
Psxrun.exe6.2.9200.1638444,54426-Jul-201203:08x64
Psxss.exe6.2.9200.21439837,12002-Apr-201500:39x64
Sua-ppdlic.xrm-msNot applicable2,87302-Apr-201503:41Not applicable
Suares.dll6.2.9200.163842,04826-Jul-201202:35x64
What's new in subsystem for unix-based applications.lnkNot applicable1,25625-Jul-201220:33Not applicable
Posixsscom.dll6.2.9200.163846,65626-Jul-201203:19x86
Psxdll.dll6.2.9200.21435305,15230-Mar-201504:53x86
Psxdllsvr.dll6.2.9200.21435354,30430-Mar-201504:53x86

Windows 7 and Windows Server 2008 R2 file information and 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 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
    6.1.760 1.23xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • 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 7
File nameFile versionFile sizeDateTimePlatform
Baseu.dnlNot applicable16609-Jul-201306:48Not applicable
Baseu.prmNot applicable1,15309-Jul-201306:48Not applicable
Desktop.iniNot applicable8109-Jul-201306:48Not applicable
Disablesetuid.iniNot applicable9209-Jul-201306:48Not applicable
Download.urlNot applicable7109-Jul-201306:48Not applicable
Enablesetuid.iniNot applicable9209-Jul-201306:48Not applicable
Posix.exe6.1.7601.2301580,89602-Apr-201505:15x86
Posixsscom.dll6.1.7601.230155,63202-Apr-201505:16x86
Psxdll.dll6.1.7601.23015309,24802-Apr-201505:16x86
Psxdllsvr.dll6.1.7601.23015357,88802-Apr-201505:16x86
Psxdrv.sys6.1.7601.230159,21602-Apr-201504:07x86
Psxrun.exe6.1.7601.2301540,96002-Apr-201505:15x86
Psxss.exe6.1.7601.23015657,92002-Apr-201505:15x86
Sua-ppdlic.xrm-msNot applicable2,98102-Apr-201505:33Not applicable
Suares.dll6.1.7601.230152,04802-Apr-201505:13x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Baseu.dnlNot applicable16609-Jul-201306:48Not applicable
Baseu.prmNot applicable1,15309-Jul-201306:48Not applicable
Disablesetuid.iniNot applicable9209-Jul-201306:48Not applicable
Download.urlNot applicable7109-Jul-201306:48Not applicable
Enablesetuid.iniNot applicable9209-Jul-201306:48Not applicable
Posix.exe6.1.7601.2301589,08802-Apr-201505:26x64
Psxdll.dll6.1.7601.23015330,24002-Apr-201505:27x64
Psxdllsvr.dll6.1.7601.23015378,36802-Apr-201505:27x64
Psxdrv.sys6.1.7601.2301510,24002-Apr-201504:13x64
Psxrun.exe6.1.7601.2301544,03202-Apr-201505:26x64
Psxss.exe6.1.7601.23015850,43202-Apr-201505:26x64
Suacore-ppdlic.xrm-msNot applicable2,99302-Apr-201505:54Not applicable
Suares.dll6.1.7601.230152,04802-Apr-201505:24x64
Baseu.dnlNot applicable16609-Jul-201306:48Not applicable
Baseu.prmNot applicable1,15309-Jul-201306:48Not applicable
Desktop.iniNot applicable8109-Jul-201306:48Not applicable
Disablesetuid.iniNot applicable9209-Jul-201306:48Not applicable
Download.urlNot applicable7109-Jul-201306:48Not applicable
Enablesetuid.iniNot applicable9209-Jul-201306:48Not applicable
Posix.exe6.1.7601.2301589,08802-Apr-201505:26x64
Psxdll.dll6.1.7601.23015330,24002-Apr-201505:27x64
Psxdllsvr.dll6.1.7601.23015378,36802-Apr-201505:27x64
Psxdrv.sys6.1.7601.2301510,24002-Apr-201504:13x64
Psxrun.exe6.1.7601.2301544,03202-Apr-201505:26x64
Psxss.exe6.1.7601.23015850,43202-Apr-201505:26x64
Sua-ppdlic.xrm-msNot applicable2,98102-Apr-201505:54Not applicable
Suares.dll6.1.7601.230152,04802-Apr-201505:24x64
Posixsscom.dll6.1.7601.230155,63202-Apr-201505:16x86
Psxdll.dll6.1.7601.23015328,19202-Apr-201505:16x86
Psxdllsvr.dll6.1.7601.23015376,83202-Apr-201505:16x86
Posixsscom.dll6.1.7601.230155,63202-Apr-201505:16x86
Psxdll.dll6.1.7601.23015328,19202-Apr-201505:16x86
Psxdllsvr.dll6.1.7601.23015376,83202-Apr-201505:16x86
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Baseu.dnlNot applicable16609-Jul-201306:48Not applicable
Baseu.prmNot applicable1,15309-Jul-201306:48Not applicable
Desktop.iniNot applicable8109-Jul-201306:48Not applicable
Disablesetuid.iniNot applicable9209-Jul-201306:48Not applicable
Download.urlNot applicable7109-Jul-201306:48Not applicable
Enablesetuid.iniNot applicable9209-Jul-201306:48Not applicable
Posix.exe6.1.7601.23015181,24802-Apr-201504:27IA-64
Psxdll.dll6.1.7601.23015718,84802-Apr-201504:28IA-64
Psxdllsvr.dll6.1.7601.23015744,44802-Apr-201504:28IA-64
Psxdrv.sys6.1.7601.2301523,55202-Apr-201503:37IA-64
Psxrun.exe6.1.7601.2301579,36002-Apr-201504:27IA-64
Psxss.exe6.1.7601.230151,650,17602-Apr-201504:27IA-64
Sua-ppdlic.xrm-msNot applicable2,98102-Apr-201504:42Not applicable
Suares.dll6.1.7601.230152,04802-Apr-201504:25IA-64
Posixsscom.dll6.1.7601.230155,63202-Apr-201505:16x86
Psxdll.dll6.1.7601.23015328,19202-Apr-201505:16x86
Psxdllsvr.dll6.1.7601.23015376,83202-Apr-201505:16x86

Additional file information

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 nameX86_43dcf53b7d3fd87cd9459647ef8a92c1_31bf3856ad364e35_6.2.9200.21439_none_fd20da4ee944c9ac.manifest
File versionNot applicable
File size707
Date (UTC)02-Apr-2015
Time (UTC)09:47
File nameX86_subsystem-for-unix-based-applications_31bf3856ad364e35_6.2.9200.21439_none_7157fab7da470d03.manifest
File versionNot applicable
File size65,385
Date (UTC)02-Apr-2015
Time (UTC)09:50
Additional files for all supported x64-based versions of Windows 8 and of Windows Server 2012
File propertyValue
File nameAmd64_5fbd6d1a799a80cdc68ff7f8fa3e90cb_31bf3856ad364e35_6.2.9200.21439_none_9bf15b9c6d72d7f8.manifest
File versionNot applicable
File size1,064
Date (UTC)02-Apr-2015
Time (UTC)09:47
File nameAmd64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.2.9200.21439_none_cd76963b92a47e39.manifest
File versionNot applicable
File size66,405
Date (UTC)02-Apr-2015
Time (UTC)09:47
File nameWow64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.2.9200.21439_none_d7cb408dc7054034.manifest
File versionNot applicable
File size41,529
Date (UTC)02-Apr-2015
Time (UTC)09:47
Additional file information for Windows 7 and for Windows Server 2008 R2
Additional files for all supported x86-based versions of Windows 7
File propertyValue
File nameX86_1578bddc0bcfe600666c5693122a26d5_31bf3856ad364e35_6.1.7601.23015_none_4bf0a3c962ac4a12.manifest
File versionNot applicable
File size707
Date (UTC)02-Apr-2015
Time (UTC)16:55
File nameX86_subsystem-for-unix-based-applications_31bf3856ad364e35_6.1.7601.23015_none_767a25d2674eb25d.manifest
File versionNot applicable
File size61,497
Date (UTC)02-Apr-2015
Time (UTC)05:39
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File propertyValue
File nameAmd64_681a62a98fb57d77028f98965157ee18_31bf3856ad364e35_6.1.7601.23015_none_df2e1768179a9208.manifest
File versionNot applicable
File size1,064
Date (UTC)02-Apr-2015
Time (UTC)16:55
File nameAmd64_999c5376ce00dda44a06742f7608857f_31bf3856ad364e35_6.1.7601.23015_none_a535f352be8937f4.manifest
File versionNot applicable
File size716
Date (UTC)02-Apr-2015
Time (UTC)16:55
File nameAmd64_eac1f5cdf1eda6cddf35823a97954b5f_31bf3856ad364e35_6.1.7601.23015_none_9d5e005d125524d8.manifest
File versionNot applicable
File size716
Date (UTC)02-Apr-2015
Time (UTC)16:55
File nameAmd64_subsystem-for-unix-..d-applications-core_31bf3856ad364e35_6.1.7601.23015_none_530de363d0286731.manifest
File versionNot applicable
File size57,114
Date (UTC)02-Apr-2015
Time (UTC)06:00
File nameAmd64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.1.7601.23015_none_d298c1561fac2393.manifest
File versionNot applicable
File size62,509
Date (UTC)02-Apr-2015
Time (UTC)06:00
File nameWow64_subsystem-for-unix-..d-applications-core_31bf3856ad364e35_6.1.7601.23015_none_5d628db60489292c.manifest
File versionNot applicable
File size41,365
Date (UTC)02-Apr-2015
Time (UTC)05:33
File nameWow64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.1.7601.23015_none_dced6ba8540ce58e.manifest
File versionNot applicable
File size41,411
Date (UTC)02-Apr-2015
Time (UTC)05:34
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File propertyValue
File nameIa64_b51b3aff624e9f021884e2f00d3d6850_31bf3856ad364e35_6.1.7601.23015_none_b47f95c268e801db.manifest
File versionNot applicable
File size1,062
Date (UTC)02-Apr-2015
Time (UTC)16:54
File nameIa64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.1.7601.23015_none_767bc9c8674cbb59.manifest
File versionNot applicable
File size62,506
Date (UTC)02-Apr-2015
Time (UTC)05:36
File nameWow64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.1.7601.23015_none_dced6ba8540ce58e.manifest
File versionNot applicable
File size41,411
Date (UTC)02-Apr-2015
Time (UTC)05:34

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Status

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

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References

See the terminology that Microsoft uses to describe software updates.

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Keywords: kb, kbautohotfix, kbqfe, kbhotfixserver, kbfix, kbsurveynew, kbexpertiseadvanced

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Article Info
Article ID : 3042826
Revision : 1
Created on : 1/7/2017
Published on : 4/30/2015
Exists online : False
Views : 201