BufAfterReqCompletedWriteA rule (kmdf)
The BufAfterReqCompletedWriteA rule specifies that within the EvtIoWrite callback function, the I/O request buffer retrieved cannot be accessed after the I/O request is completed.
Within the driver's EvtIoWrite callback function, the request buffer that was retrieved by calling
WdfRequestRetrieveInputBuffer or WdfRequestRetrieveUnsafeUserInputBuffer cannot be accessed after calling WdfRequestComplete, WdfRequestCompleteWithInformation, or WdfRequestCompleteWithPriorityBoost on the I/O request.
Driver model: KMDF
How to test
|At compile time|
Run Static Driver Verifier and specify the BufAfterReqCompletedWriteA rule.Use the following steps to run an analysis of your code:
For more information, see Using Static Driver Verifier to Find Defects in Drivers.
WDF_MEMORY_DESCRIPTOR_INIT_BUFFER WdfMemoryAssignBuffer WdfMemoryCopyFromBuffer WdfMemoryCopyToBuffer WdfMemoryCreatePreallocated WdfRequestComplete WdfRequestCompleteWithInformation WdfRequestCompleteWithPriorityBoost WdfRequestRetrieveInputBuffer WdfRequestRetrieveUnsafeUserInputBuffer RtlCompareMemory RtlMoveMemory RtlZeroMemory ZwReadFile