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//0x30 bytes (sizeof)
struct _MDL
{
    struct _MDL* Next;                                                      //0x0
    SHORT Size;                                                             //0x8
    SHORT MdlFlags;                                                         //0xa
    USHORT AllocationProcessorNumber;                                       //0xc
    USHORT Reserved;                                                        //0xe
    struct _EPROCESS* Process;                                              //0x10
    VOID* MappedSystemVa;                                                   //0x18
    VOID* StartVa;                                                          //0x20
    ULONG ByteCount;                                                        //0x28
    ULONG ByteOffset;                                                       //0x2c
};