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.
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.
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.
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 0.16xxx Windows 8 and Windows Server 2012 RTM GDR 6.2.920 0.21xxx Windows 8 and Windows Server 2012 RTM LDR 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 name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Baseu.dnl | Not applicable | 166 | 02-Jun-2012 | 14:54 | Not applicable |
| Baseu.prm | Not applicable | 1,153 | 02-Jun-2012 | 14:54 | Not applicable |
| Desktop.ini | Not applicable | 81 | 02-Jun-2012 | 14:54 | Not applicable |
| Disablesetuid.ini | Not applicable | 92 | 02-Jun-2012 | 14:54 | Not applicable |
| Download utilities for subsystem for unix-based applications.lnk | Not applicable | 412 | 25-Jul-2012 | 20:37 | Not applicable |
| Download.url | Not applicable | 71 | 02-Jun-2012 | 14:54 | Not applicable |
| Enablesetuid.ini | Not applicable | 92 | 02-Jun-2012 | 14:54 | Not applicable |
| Posix.exe | 6.2.9200.16384 | 82,944 | 26-Jul-2012 | 03:20 | x86 |
| Posixsscom.dll | 6.2.9200.16384 | 6,656 | 26-Jul-2012 | 03:19 | x86 |
| Psxdll.dll | 6.2.9200.21435 | 289,280 | 02-Apr-2015 | 00:40 | x86 |
| Psxdllsvr.dll | 6.2.9200.21435 | 339,456 | 02-Apr-2015 | 00:40 | x86 |
| Psxdrv.sys | 6.2.9200.16384 | 8,192 | 26-Jul-2012 | 02:38 | x86 |
| Psxrun.exe | 6.2.9200.16384 | 41,984 | 26-Jul-2012 | 03:20 | x86 |
| Psxss.exe | 6.2.9200.21439 | 650,240 | 02-Apr-2015 | 00:40 | x86 |
| Sua-ppdlic.xrm-ms | Not applicable | 2,873 | 02-Apr-2015 | 01:14 | Not applicable |
| Suares.dll | 6.2.9200.16384 | 2,048 | 26-Jul-2012 | 02:45 | x86 |
| What's new in subsystem for unix-based applications.lnk | Not applicable | 1,256 | 25-Jul-2012 | 20:37 | Not applicable |
For all supported x64-based versions of Windows 8 and of Windows Server 2012
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Baseu.dnl | Not applicable | 166 | 02-Jun-2012 | 14:54 | Not applicable |
| Baseu.prm | Not applicable | 1,153 | 02-Jun-2012 | 14:54 | Not applicable |
| Desktop.ini | Not applicable | 81 | 02-Jun-2012 | 14:54 | Not applicable |
| Disablesetuid.ini | Not applicable | 92 | 02-Jun-2012 | 14:54 | Not applicable |
| Download utilities for subsystem for unix-based applications.lnk | Not applicable | 412 | 25-Jul-2012 | 20:33 | Not applicable |
| Download.url | Not applicable | 71 | 02-Jun-2012 | 14:54 | Not applicable |
| Enablesetuid.ini | Not applicable | 92 | 02-Jun-2012 | 14:54 | Not applicable |
| Posix.exe | 6.2.9200.16384 | 89,088 | 26-Jul-2012 | 03:08 | x64 |
| Psxdll.dll | 6.2.9200.21435 | 315,904 | 02-Apr-2015 | 00:38 | x64 |
| Psxdllsvr.dll | 6.2.9200.21435 | 364,032 | 02-Apr-2015 | 00:38 | x64 |
| Psxdrv.sys | 6.2.9200.16384 | 9,728 | 26-Jul-2012 | 02:30 | x64 |
| Psxrun.exe | 6.2.9200.16384 | 44,544 | 26-Jul-2012 | 03:08 | x64 |
| Psxss.exe | 6.2.9200.21439 | 837,120 | 02-Apr-2015 | 00:39 | x64 |
| Sua-ppdlic.xrm-ms | Not applicable | 2,873 | 02-Apr-2015 | 03:41 | Not applicable |
| Suares.dll | 6.2.9200.16384 | 2,048 | 26-Jul-2012 | 02:35 | x64 |
| What's new in subsystem for unix-based applications.lnk | Not applicable | 1,256 | 25-Jul-2012 | 20:33 | Not applicable |
| Posixsscom.dll | 6.2.9200.16384 | 6,656 | 26-Jul-2012 | 03:19 | x86 |
| Psxdll.dll | 6.2.9200.21435 | 305,152 | 30-Mar-2015 | 04:53 | x86 |
| Psxdllsvr.dll | 6.2.9200.21435 | 354,304 | 30-Mar-2015 | 04:53 | x86 |
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:
Version Product Milestone Service branch 6.1.760 1.23xxx Windows 7 and Windows Server 2008 R2 SP1 LDR 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 name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Baseu.dnl | Not applicable | 166 | 09-Jul-2013 | 06:48 | Not applicable |
| Baseu.prm | Not applicable | 1,153 | 09-Jul-2013 | 06:48 | Not applicable |
| Desktop.ini | Not applicable | 81 | 09-Jul-2013 | 06:48 | Not applicable |
| Disablesetuid.ini | Not applicable | 92 | 09-Jul-2013 | 06:48 | Not applicable |
| Download.url | Not applicable | 71 | 09-Jul-2013 | 06:48 | Not applicable |
| Enablesetuid.ini | Not applicable | 92 | 09-Jul-2013 | 06:48 | Not applicable |
| Posix.exe | 6.1.7601.23015 | 80,896 | 02-Apr-2015 | 05:15 | x86 |
| Posixsscom.dll | 6.1.7601.23015 | 5,632 | 02-Apr-2015 | 05:16 | x86 |
| Psxdll.dll | 6.1.7601.23015 | 309,248 | 02-Apr-2015 | 05:16 | x86 |
| Psxdllsvr.dll | 6.1.7601.23015 | 357,888 | 02-Apr-2015 | 05:16 | x86 |
| Psxdrv.sys | 6.1.7601.23015 | 9,216 | 02-Apr-2015 | 04:07 | x86 |
| Psxrun.exe | 6.1.7601.23015 | 40,960 | 02-Apr-2015 | 05:15 | x86 |
| Psxss.exe | 6.1.7601.23015 | 657,920 | 02-Apr-2015 | 05:15 | x86 |
| Sua-ppdlic.xrm-ms | Not applicable | 2,981 | 02-Apr-2015 | 05:33 | Not applicable |
| Suares.dll | 6.1.7601.23015 | 2,048 | 02-Apr-2015 | 05:13 | x86 |
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Baseu.dnl | Not applicable | 166 | 09-Jul-2013 | 06:48 | Not applicable |
| Baseu.prm | Not applicable | 1,153 | 09-Jul-2013 | 06:48 | Not applicable |
| Disablesetuid.ini | Not applicable | 92 | 09-Jul-2013 | 06:48 | Not applicable |
| Download.url | Not applicable | 71 | 09-Jul-2013 | 06:48 | Not applicable |
| Enablesetuid.ini | Not applicable | 92 | 09-Jul-2013 | 06:48 | Not applicable |
| Posix.exe | 6.1.7601.23015 | 89,088 | 02-Apr-2015 | 05:26 | x64 |
| Psxdll.dll | 6.1.7601.23015 | 330,240 | 02-Apr-2015 | 05:27 | x64 |
| Psxdllsvr.dll | 6.1.7601.23015 | 378,368 | 02-Apr-2015 | 05:27 | x64 |
| Psxdrv.sys | 6.1.7601.23015 | 10,240 | 02-Apr-2015 | 04:13 | x64 |
| Psxrun.exe | 6.1.7601.23015 | 44,032 | 02-Apr-2015 | 05:26 | x64 |
| Psxss.exe | 6.1.7601.23015 | 850,432 | 02-Apr-2015 | 05:26 | x64 |
| Suacore-ppdlic.xrm-ms | Not applicable | 2,993 | 02-Apr-2015 | 05:54 | Not applicable |
| Suares.dll | 6.1.7601.23015 | 2,048 | 02-Apr-2015 | 05:24 | x64 |
| Baseu.dnl | Not applicable | 166 | 09-Jul-2013 | 06:48 | Not applicable |
| Baseu.prm | Not applicable | 1,153 | 09-Jul-2013 | 06:48 | Not applicable |
| Desktop.ini | Not applicable | 81 | 09-Jul-2013 | 06:48 | Not applicable |
| Disablesetuid.ini | Not applicable | 92 | 09-Jul-2013 | 06:48 | Not applicable |
| Download.url | Not applicable | 71 | 09-Jul-2013 | 06:48 | Not applicable |
| Enablesetuid.ini | Not applicable | 92 | 09-Jul-2013 | 06:48 | Not applicable |
| Posix.exe | 6.1.7601.23015 | 89,088 | 02-Apr-2015 | 05:26 | x64 |
| Psxdll.dll | 6.1.7601.23015 | 330,240 | 02-Apr-2015 | 05:27 | x64 |
| Psxdllsvr.dll | 6.1.7601.23015 | 378,368 | 02-Apr-2015 | 05:27 | x64 |
| Psxdrv.sys | 6.1.7601.23015 | 10,240 | 02-Apr-2015 | 04:13 | x64 |
| Psxrun.exe | 6.1.7601.23015 | 44,032 | 02-Apr-2015 | 05:26 | x64 |
| Psxss.exe | 6.1.7601.23015 | 850,432 | 02-Apr-2015 | 05:26 | x64 |
| Sua-ppdlic.xrm-ms | Not applicable | 2,981 | 02-Apr-2015 | 05:54 | Not applicable |
| Suares.dll | 6.1.7601.23015 | 2,048 | 02-Apr-2015 | 05:24 | x64 |
| Posixsscom.dll | 6.1.7601.23015 | 5,632 | 02-Apr-2015 | 05:16 | x86 |
| Psxdll.dll | 6.1.7601.23015 | 328,192 | 02-Apr-2015 | 05:16 | x86 |
| Psxdllsvr.dll | 6.1.7601.23015 | 376,832 | 02-Apr-2015 | 05:16 | x86 |
| Posixsscom.dll | 6.1.7601.23015 | 5,632 | 02-Apr-2015 | 05:16 | x86 |
| Psxdll.dll | 6.1.7601.23015 | 328,192 | 02-Apr-2015 | 05:16 | x86 |
| Psxdllsvr.dll | 6.1.7601.23015 | 376,832 | 02-Apr-2015 | 05:16 | x86 |
For all supported IA-64-based versions of Windows Server 2008 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Baseu.dnl | Not applicable | 166 | 09-Jul-2013 | 06:48 | Not applicable |
| Baseu.prm | Not applicable | 1,153 | 09-Jul-2013 | 06:48 | Not applicable |
| Desktop.ini | Not applicable | 81 | 09-Jul-2013 | 06:48 | Not applicable |
| Disablesetuid.ini | Not applicable | 92 | 09-Jul-2013 | 06:48 | Not applicable |
| Download.url | Not applicable | 71 | 09-Jul-2013 | 06:48 | Not applicable |
| Enablesetuid.ini | Not applicable | 92 | 09-Jul-2013 | 06:48 | Not applicable |
| Posix.exe | 6.1.7601.23015 | 181,248 | 02-Apr-2015 | 04:27 | IA-64 |
| Psxdll.dll | 6.1.7601.23015 | 718,848 | 02-Apr-2015 | 04:28 | IA-64 |
| Psxdllsvr.dll | 6.1.7601.23015 | 744,448 | 02-Apr-2015 | 04:28 | IA-64 |
| Psxdrv.sys | 6.1.7601.23015 | 23,552 | 02-Apr-2015 | 03:37 | IA-64 |
| Psxrun.exe | 6.1.7601.23015 | 79,360 | 02-Apr-2015 | 04:27 | IA-64 |
| Psxss.exe | 6.1.7601.23015 | 1,650,176 | 02-Apr-2015 | 04:27 | IA-64 |
| Sua-ppdlic.xrm-ms | Not applicable | 2,981 | 02-Apr-2015 | 04:42 | Not applicable |
| Suares.dll | 6.1.7601.23015 | 2,048 | 02-Apr-2015 | 04:25 | IA-64 |
| Posixsscom.dll | 6.1.7601.23015 | 5,632 | 02-Apr-2015 | 05:16 | x86 |
| Psxdll.dll | 6.1.7601.23015 | 328,192 | 02-Apr-2015 | 05:16 | x86 |
| Psxdllsvr.dll | 6.1.7601.23015 | 376,832 | 02-Apr-2015 | 05:16 | x86 |
Additional file information for Windows 8 and for Windows Server 2012
Additional files for all supported x86-based versions of Windows 8
| File property | Value |
|---|---|
| File name | X86_43dcf53b7d3fd87cd9459647ef8a92c1_31bf3856ad364e35_6.2.9200.21439_none_fd20da4ee944c9ac.manifest |
| File version | Not applicable |
| File size | 707 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 09:47 |
| File name | X86_subsystem-for-unix-based-applications_31bf3856ad364e35_6.2.9200.21439_none_7157fab7da470d03.manifest |
| File version | Not applicable |
| File size | 65,385 |
| 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 property | Value |
|---|---|
| File name | Amd64_5fbd6d1a799a80cdc68ff7f8fa3e90cb_31bf3856ad364e35_6.2.9200.21439_none_9bf15b9c6d72d7f8.manifest |
| File version | Not applicable |
| File size | 1,064 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 09:47 |
| File name | Amd64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.2.9200.21439_none_cd76963b92a47e39.manifest |
| File version | Not applicable |
| File size | 66,405 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 09:47 |
| File name | Wow64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.2.9200.21439_none_d7cb408dc7054034.manifest |
| File version | Not applicable |
| File size | 41,529 |
| 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 property | Value |
|---|---|
| File name | X86_1578bddc0bcfe600666c5693122a26d5_31bf3856ad364e35_6.1.7601.23015_none_4bf0a3c962ac4a12.manifest |
| File version | Not applicable |
| File size | 707 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 16:55 |
| File name | X86_subsystem-for-unix-based-applications_31bf3856ad364e35_6.1.7601.23015_none_767a25d2674eb25d.manifest |
| File version | Not applicable |
| File size | 61,497 |
| 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 property | Value |
|---|---|
| File name | Amd64_681a62a98fb57d77028f98965157ee18_31bf3856ad364e35_6.1.7601.23015_none_df2e1768179a9208.manifest |
| File version | Not applicable |
| File size | 1,064 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 16:55 |
| File name | Amd64_999c5376ce00dda44a06742f7608857f_31bf3856ad364e35_6.1.7601.23015_none_a535f352be8937f4.manifest |
| File version | Not applicable |
| File size | 716 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 16:55 |
| File name | Amd64_eac1f5cdf1eda6cddf35823a97954b5f_31bf3856ad364e35_6.1.7601.23015_none_9d5e005d125524d8.manifest |
| File version | Not applicable |
| File size | 716 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 16:55 |
| File name | Amd64_subsystem-for-unix-..d-applications-core_31bf3856ad364e35_6.1.7601.23015_none_530de363d0286731.manifest |
| File version | Not applicable |
| File size | 57,114 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 06:00 |
| File name | Amd64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.1.7601.23015_none_d298c1561fac2393.manifest |
| File version | Not applicable |
| File size | 62,509 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 06:00 |
| File name | Wow64_subsystem-for-unix-..d-applications-core_31bf3856ad364e35_6.1.7601.23015_none_5d628db60489292c.manifest |
| File version | Not applicable |
| File size | 41,365 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 05:33 |
| File name | Wow64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.1.7601.23015_none_dced6ba8540ce58e.manifest |
| File version | Not applicable |
| File size | 41,411 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 05:34 |
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
| File property | Value |
|---|---|
| File name | Ia64_b51b3aff624e9f021884e2f00d3d6850_31bf3856ad364e35_6.1.7601.23015_none_b47f95c268e801db.manifest |
| File version | Not applicable |
| File size | 1,062 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 16:54 |
| File name | Ia64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.1.7601.23015_none_767bc9c8674cbb59.manifest |
| File version | Not applicable |
| File size | 62,506 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 05:36 |
| File name | Wow64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.1.7601.23015_none_dced6ba8540ce58e.manifest |
| File version | Not applicable |
| File size | 41,411 |
| Date (UTC) | 02-Apr-2015 |
| Time (UTC) | 05:34 |
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.