Assume that you execute a query that uses a linked server in Microsoft SQL Server 2016 and 2017. When the query is cancelled during execution an assertion error may occur rarely and SQL Server may shut down unexpectedly. Additonally, you will receive an error message that resembles the following:
DateTime spid82 Error: 17066, Severity: 16, State: 1.
DateTime spid82 SQL Server Assertion: File:FileName\FilePath, line=LineNumber Failed Assertion = 'pilb->m_cRef == 0'. This error may be timing-related. If the error persists after rerunning the statement, use DBCC CHECKDB to check the database for structural integrity, or restart the server to ensure in-memory data structures are not corrupted.
DateTime spid82 Error: 3624, Severity: 20, State: 1.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.