FIX: Memory leak occurs when an application that uses SQL Server Native Client tries to connect and close the connection to a SQL Server 2008 R2 instance

Applies to: SQL Server 2008 R2 Service Pack 2SQL Server 2008 R2 DeveloperSQL Server 2008 R2 Enterprise More


Consider the following scenario:
  • You have an application that uses Microsoft SQL Server Native Client in SQL Server 2008 R2.
  • The application tries to connect to an instance of SQL Server.
  • Perform some actions, then close the connection.
In this scenario, memory leak may occur.
Note The memory leak occurs on the lsass.exe handle.


The issue was first fixed in the following cumulative update of SQL Server.

Cumulative Update 11 for SQL Server 2008 R2 SP2


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