Assume that you enable HkTempdb mode by using ALTER SERVER Data Definition Language (DDL) in SQL Server 2019. You may notice that an access violation occurs when you try to internally fetch the execution context from the Transport Layer Security (TLS) by calling HkError.Throw() in an out of memory (OOM) scenario.


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


This issue is fixed in the following cumulative update for SQL Server:

About cumulative updates for SQL Server:

Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:


Learn about the terminology that Microsoft uses to describe software updates.

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