Assume that you have a large database in Microsoft SQL Server 2016. When you run the DBCC CHECKDB command against the database and cancel it, you will notice that the session is in KILLED/ROLLBACK status. Additionally, this situation will last infinitely until you restart the SQL service.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
The 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.