March 1, 2018 - KB4091290
Applies to: Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1
Summary
This update addresses a known issue previously called out in
KB4075211 where the LSM.EXE process and applications that call SCardEstablishContext or SCardReleaseContext may experience a handle leak. Once the leaked handle count reaches a certain threshold, smart card based operations fail with error with SCARD_E_NO_SERVICE
Known issues
Symptom
Because of an issue that affects some versions of antivirus software, this fix is being applied only to the computers on which the antivirus ISV have updated the ALLOW REGKEY.
Workaround
Contact your antivirus manufacturer to verify that their software is compatible and that they have set the following REGKEY on the computer:
Key="HKEY_LOCAL_MACHINE"Subkey="SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat"
Value Name="cadca5fe-87d3-4b96-b7fb-a231484277cc"
Type="REG_DWORD”
Data="0x00000000”
Symptom
After installing this update, SMB servers may experience a memory leak.
Workaround
Microsoft is working on a resolution and will provide an update in an upcoming release.
Update replacement information
This update replaces the previously released update
KB4075211.
How to get this update
This is provided as an update on
Windows Update. For more information about how to run Windows Update, see
How to get an update through Windows Update. To get the standalone package for this update, go to the
Microsoft Update Catalog website.
File information
For a list of the files that are provided in this update, download the
file information for update 4091290.