What does NTSTATUS 0xC01C000A (STATUS_FLT_INTERNAL_ERROR) mean?

 
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STATUS_FLT_POST_OPERATION_CLEANUP STATUS_FLT_DELETING_OBJECT

STATUS_FLT_INTERNAL_ERROR

STATUS_FLT_INTERNAL_ERROR is a framework failure that commonly follows an invalid value returned from a pre-operation callback. Treat it as a driver-contract defect first, not as a transient file-access problem.

Audit every callback return against the documented status enum and verify that the completion-context pointer is valid for that return value. The defect may be visible only on a rare major function or cancellation path, so logs should include the callback name, major/minor code, return value, instance altitude, and whether the callback marked data dirty.

Do not hide it

  • Do not translate it into success or blindly retry the user I/O.
  • Do not reuse a completion context after the callback contract says it is no longer owned.
  • Test the exact path with Driver Verifier and checked diagnostics where available.

Writing callback routines | Filter Manager concepts | NTSTATUS reference


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