From 5ad16dc88885d8e4efc19d8371b9c09ae272a78e Mon Sep 17 00:00:00 2001
From: Dibyamartanda Samanta <dibyaxp@noreply.codingworkshop.git>
Date: Fri, 10 May 2024 17:46:45 +0200
Subject: [PATCH] NULL Conondrum  & TypeSystem

---
 NTOSKRNL/CC/ccmdlhandler.cpp | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/NTOSKRNL/CC/ccmdlhandler.cpp b/NTOSKRNL/CC/ccmdlhandler.cpp
index 6d7a02b..5e4fc8b 100644
--- a/NTOSKRNL/CC/ccmdlhandler.cpp
+++ b/NTOSKRNL/CC/ccmdlhandler.cpp
@@ -43,8 +43,8 @@ CcMdlWriteComplete2(IN PFILE_OBJECT FileObject,
 {
 
 PLARGE_INTEGER FOffset = nullptr;
-KIRQL CurrentIrql = NULL;
-NTSTATUS Exception = NULL;
+KIRQL CurrentIrql = {0};
+NTSTATUS Exception = {0};
 PIO_STATUS_BLOCK IoStatus = nullptr;
 
 
@@ -101,14 +101,14 @@ CcMdlRead (
 	ULONG LENGTH_FINAL = Length;
 	PVOID VirtualAddress = nullptr;
 	PVACB VACB  = nullptr;
-	ULONG ReceivedLength = NULL;
-	ULONG Information = NULL;
-	PMDL Allocated = NULL;
-	LARGE_INTEGER FOffset = FileOffset;
+	ULONG ReceivedLength = {0};
+	ULONG Information = {0};
+	PMDL Allocated = nullptr;
+	LARGE_INTEGER FOffset = {0};
 	PSHARED_CACHE_MAP sharedcachmap = FileObject->SectionObjectPointer->SharedCacheMap; 
 	PRIVATE_CACHE_MAP PrivateCacheMap = FileObject->PrivateCacheMap;
 	PVOID VirtualAddress = nullptr;
-	LARGE_INTEGER Offset_Lenghth = NULL;
+	LARGE_INTEGER Offset_Lenghth = {0};
 
 
 _try
@@ -223,7 +223,7 @@ NTAPI
 CcMdlWriteAbort(IN PFILE_OBJECT FileObject,
                 IN PMDL MdlChain)
 {
-KIRQL CurrentIrql = null;
+KIRQL CurrentIrql = {0}; // Underneath a UCHAR
 PSHARED_CACHE_MAP SharedCacheMap = FileObject->SectionObjectPointer->SharedCacheMap;
 
 
@@ -273,12 +273,12 @@ CcPrepareMdlWrite(IN PFILE_OBJECT FileObject,
   PSHARED_CACHE_MAP SharedCacheMap = FileObject->SectionObjectPointer->SharedCacheMap;
   PLARGE_INTEGER FOffset = nullptr;
   PLARGE_INTEGER ReadAheadLenghth = nullptr;
-  LARGE_INTEGER Final_Length = NULL;
-  LARGE_INTEGER ReadAhead_Length = NULL;
-  LARGE_INTEGER Information = NULL;
-  ULONG ReceivedLength = NULL;
-  ULONG SavedState = NULL;
-  ULONG ZeroOpsFlags = NULL;
+  LARGE_INTEGER Final_Length = {0};
+  LARGE_INTEGER ReadAhead_Length =  {0};
+  LARGE_INTEGER Information =  {0};
+  ULONG ReceivedLength =  {0};
+  ULONG SavedState =  {0};
+  ULONG ZeroOpsFlags =  {0};
   PVACB Vacb = nullptr;
   BOOL MapFlag = false;
   if ((FileObject->Flags & 0x10) == 0)