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Unloading a Windows Driver

SteveSelvaSteveSelva Member Posts: 4

I am creating a Network driver using Windows KMDF Driver and Windows Filtering Platform(WFP) API.

While unloading the driver, I should deallocate all the memory allocated by the driver to avoid memory leaks.

I have an object X which gets allocated and deallocated within Driver itself. There is no problem with that object.

I have another object Y which is getting allocated in Driver using ExAllocatePoolWithTag() and I am setting that address in localRedirectContext of FWPS_CONNECT_REQUEST0 struct.

And then I am fetching that data using WSAIoctl and using it in the User-mode application. Should I need to handle the deallocation of object Y. But if I deallocate the object Y, it throws an error in WinDbg, so I assumed that it should not be deallocated.

Am I doing it correct or not?

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