diff --git a/reactos/ntoskrnl/cc/view.c b/reactos/ntoskrnl/cc/view.c
index a19171c9a39..1be81e0383a 100644
--- a/reactos/ntoskrnl/cc/view.c
+++ b/reactos/ntoskrnl/cc/view.c
@@ -1325,6 +1325,10 @@ CcInitView(VOID)
     }
 
   Buffer = ExAllocatePool(NonPagedPool, CI_CACHESEG_MAPPING_REGION_SIZE / (PAGE_SIZE * 8));
+  if (!Buffer)
+  {
+    KeBugCheck(CACHE_MANAGER);
+  }
 
   RtlInitializeBitMap(&CiCacheSegMappingRegionAllocMap, Buffer, CI_CACHESEG_MAPPING_REGION_SIZE / PAGE_SIZE);
   RtlClearAllBits(&CiCacheSegMappingRegionAllocMap);
diff --git a/reactos/ntoskrnl/fstub/disksup.c b/reactos/ntoskrnl/fstub/disksup.c
index 3d87077d12d..d217122309f 100644
--- a/reactos/ntoskrnl/fstub/disksup.c
+++ b/reactos/ntoskrnl/fstub/disksup.c
@@ -452,6 +452,8 @@ xHalIoAssignDriveLetters(IN PLOADER_PARAMETER_BLOCK LoaderBlock,
     PartialInformation = (PKEY_VALUE_PARTIAL_INFORMATION)ExAllocatePool(PagedPool,
         sizeof(KEY_VALUE_PARTIAL_INFORMATION) + sizeof(REG_DISK_MOUNT_INFO));
 
+    if (!Buffer1 || !Buffer2 || !PartialInformation) return;
+
     DiskMountInfo = (PREG_DISK_MOUNT_INFO) PartialInformation->Data;
 
     /* Open or Create the 'MountedDevices' key */
@@ -526,6 +528,14 @@ xHalIoAssignDriveLetters(IN PLOADER_PARAMETER_BLOCK LoaderBlock,
         goto end_assign_disks;
     LayoutArray = ExAllocatePool(NonPagedPool,
         ConfigInfo->DiskCount * sizeof(PDRIVE_LAYOUT_INFORMATION));
+    if (!LayoutArray)
+    {
+        ExFreePool(PartialInformation);
+        ExFreePool(Buffer2);
+        ExFreePool(Buffer1);
+        if (hKey) ZwClose(hKey);
+    }
+
     RtlZeroMemory(LayoutArray,
         ConfigInfo->DiskCount * sizeof(PDRIVE_LAYOUT_INFORMATION));
     for (i = 0; i < ConfigInfo->DiskCount; i++)
diff --git a/reactos/ntoskrnl/io/iomgr/driver.c b/reactos/ntoskrnl/io/iomgr/driver.c
index 7d605d64ead..1264454e04b 100644
--- a/reactos/ntoskrnl/io/iomgr/driver.c
+++ b/reactos/ntoskrnl/io/iomgr/driver.c
@@ -1007,6 +1007,7 @@ IopUnloadDriver(PUNICODE_STRING DriverServiceName, BOOLEAN UnloadPnpDrivers)
    ObjectName.Length = (wcslen(Start) + 8) * sizeof(WCHAR);
    ObjectName.MaximumLength = ObjectName.Length + sizeof(WCHAR);
    ObjectName.Buffer = ExAllocatePool(PagedPool, ObjectName.MaximumLength);
+   if (!ObjectName.Buffer) return STATUS_INSUFFICIENT_RESOURCES;
    wcscpy(ObjectName.Buffer, L"\\Driver\\");
    memcpy(ObjectName.Buffer + 8, Start, ObjectName.Length - 8 * sizeof(WCHAR));
    ObjectName.Buffer[ObjectName.Length/sizeof(WCHAR)] = 0;
diff --git a/reactos/ntoskrnl/io/iomgr/file.c b/reactos/ntoskrnl/io/iomgr/file.c
index d007ace307e..9d2cbc461ca 100644
--- a/reactos/ntoskrnl/io/iomgr/file.c
+++ b/reactos/ntoskrnl/io/iomgr/file.c
@@ -2872,7 +2872,7 @@ NtCancelIoFile(IN HANDLE FileHandle,
     }
     _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
     {
-
+        /* Ignore exception */
     }
     _SEH2_END;
 
diff --git a/reactos/ntoskrnl/io/iomgr/iofunc.c b/reactos/ntoskrnl/io/iomgr/iofunc.c
index 08b600f1151..4c454de3963 100644
--- a/reactos/ntoskrnl/io/iomgr/iofunc.c
+++ b/reactos/ntoskrnl/io/iomgr/iofunc.c
@@ -1015,6 +1015,12 @@ NtFlushBuffersFile(IN HANDLE FileHandle,
     {
         /* Use local event */
         Event = ExAllocatePoolWithTag(NonPagedPool, sizeof(KEVENT), TAG_IO);
+        if (!Event)
+        {
+            /* We failed */
+            ObDereferenceObject(FileObject);
+            return STATUS_INSUFFICIENT_RESOURCES;
+        }
         KeInitializeEvent(Event, SynchronizationEvent, FALSE);
         LocalEvent = TRUE;
     }
@@ -1548,6 +1554,7 @@ NtQueryDirectoryFile(IN HANDLE FileHandle,
         {
             /* Allocate an MDL */
             Mdl = IoAllocateMdl(FileInformation, Length, FALSE, TRUE, Irp);
+            if (!Mdl) ExRaiseStatus(STATUS_INSUFFICIENT_RESOURCES);
             MmProbeAndLockPages(Mdl, PreviousMode, IoWriteAccess);
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
@@ -1636,6 +1643,7 @@ NtQueryInformationFile(IN HANDLE FileHandle,
     PVOID NormalContext;
     KIRQL OldIrql;
     IO_STATUS_BLOCK KernelIosb;
+    PAGED_CODE();
     IOTRACE(IO_API_DEBUG, "FileHandle: %p\n", FileHandle);
 
     /* Check if we're called from user mode */
@@ -1749,6 +1757,11 @@ NtQueryInformationFile(IN HANDLE FileHandle,
     {
         /* Use local event */
         Event = ExAllocatePoolWithTag(NonPagedPool, sizeof(KEVENT), TAG_IO);
+        if (!Event)
+        {
+            ObDereferenceObject(FileObject);
+            return STATUS_INSUFFICIENT_RESOURCES;
+        }
         KeInitializeEvent(Event, SynchronizationEvent, FALSE);
         LocalEvent = TRUE;
     }
@@ -2666,6 +2679,11 @@ NtUnlockFile(IN HANDLE FileHandle,
     {
         /* Use local event */
         Event = ExAllocatePoolWithTag(NonPagedPool, sizeof(KEVENT), TAG_IO);
+        if (!Event)
+        {
+            ObDereferenceObject(FileObject);
+            return STATUS_INSUFFICIENT_RESOURCES;
+        }
         KeInitializeEvent(Event, SynchronizationEvent, FALSE);
         LocalEvent = TRUE;
     }
@@ -3102,6 +3120,11 @@ NtQueryVolumeInformationFile(IN HANDLE FileHandle,
     {
         /* Use local event */
         Event = ExAllocatePoolWithTag(NonPagedPool, sizeof(KEVENT), TAG_IO);
+        if (!Event)
+        {
+            ObDereferenceObject(FileObject);
+            return STATUS_INSUFFICIENT_RESOURCES;
+        }
         KeInitializeEvent(Event, SynchronizationEvent, FALSE);
         LocalEvent = TRUE;
     }
@@ -3263,6 +3286,11 @@ NtSetVolumeInformationFile(IN HANDLE FileHandle,
     {
         /* Use local event */
         Event = ExAllocatePoolWithTag(NonPagedPool, sizeof(KEVENT), TAG_IO);
+        if (!Event)
+        {
+            ObDereferenceObject(FileObject);
+            return STATUS_INSUFFICIENT_RESOURCES;
+        }
         KeInitializeEvent(Event, SynchronizationEvent, FALSE);
         LocalEvent = TRUE;
     }
diff --git a/reactos/ntoskrnl/io/pnpmgr/pnpnotify.c b/reactos/ntoskrnl/io/pnpmgr/pnpnotify.c
index 91ffd138204..c328c80965f 100644
--- a/reactos/ntoskrnl/io/pnpmgr/pnpnotify.c
+++ b/reactos/ntoskrnl/io/pnpmgr/pnpnotify.c
@@ -61,6 +61,11 @@ IopNotifyPlugPlayNotification(
 				PagedPool,
 				sizeof(DEVICE_INTERFACE_CHANGE_NOTIFICATION),
 				TAG_PNP_NOTIFY);
+			if (!NotificationInfos)
+			{
+				KeReleaseGuardedMutex(&PnpNotifyListLock);
+				return;
+			}
 			NotificationInfos->Version = 1;
 			NotificationInfos->Size = sizeof(DEVICE_INTERFACE_CHANGE_NOTIFICATION);
 			RtlCopyMemory(&NotificationInfos->Event, Event, sizeof(GUID));
@@ -75,6 +80,11 @@ IopNotifyPlugPlayNotification(
 				PagedPool,
 				sizeof(HWPROFILE_CHANGE_NOTIFICATION),
 				TAG_PNP_NOTIFY);
+			if (!NotificationInfos)
+			{
+				KeReleaseGuardedMutex(&PnpNotifyListLock);
+				return;
+			}
 			NotificationInfos->Version = 1;
 			NotificationInfos->Size = sizeof(HWPROFILE_CHANGE_NOTIFICATION);
 			RtlCopyMemory(&NotificationInfos->Event, Event, sizeof(GUID));
@@ -87,6 +97,11 @@ IopNotifyPlugPlayNotification(
 				PagedPool,
 				sizeof(TARGET_DEVICE_REMOVAL_NOTIFICATION),
 				TAG_PNP_NOTIFY);
+			if (!NotificationInfos)
+			{
+				KeReleaseGuardedMutex(&PnpNotifyListLock);
+				return;
+			}
 			NotificationInfos->Version = 1;
 			NotificationInfos->Size = sizeof(TARGET_DEVICE_REMOVAL_NOTIFICATION);
 			RtlCopyMemory(&NotificationInfos->Event, Event, sizeof(GUID));
diff --git a/reactos/ntoskrnl/ke/profobj.c b/reactos/ntoskrnl/ke/profobj.c
index 21dda7b6cfc..a4b68e5a052 100644
--- a/reactos/ntoskrnl/ke/profobj.c
+++ b/reactos/ntoskrnl/ke/profobj.c
@@ -62,6 +62,7 @@ KeStartProfile(PKPROFILE Profile,
     SourceBuffer = ExAllocatePoolWithTag(NonPagedPool,
                                           sizeof(KPROFILE_SOURCE_OBJECT),
                                           'forP');
+    if (!SourceBuffer) return;
     RtlZeroMemory(SourceBuffer, sizeof(KPROFILE_SOURCE_OBJECT));
 
     /* Raise to PROFILE_LEVEL */
diff --git a/reactos/ntoskrnl/mm/marea.c b/reactos/ntoskrnl/mm/marea.c
index 7ac02d87140..7923faeff86 100644
--- a/reactos/ntoskrnl/mm/marea.c
+++ b/reactos/ntoskrnl/mm/marea.c
@@ -1006,7 +1006,9 @@ MmCreateMemoryArea(PMMSUPPORT AddressSpace,
                                            sizeof(MEMORY_AREA),
                                            TAG_MAREA);
     }
-    
+
+    if (!MemoryArea) return STATUS_NO_MEMORY;
+
    RtlZeroMemory(MemoryArea, sizeof(MEMORY_AREA));
    MemoryArea->Type = Type;
    MemoryArea->StartingAddress = *BaseAddress;
diff --git a/reactos/ntoskrnl/mm/region.c b/reactos/ntoskrnl/mm/region.c
index c14b6bb142d..66a896597e4 100644
--- a/reactos/ntoskrnl/mm/region.c
+++ b/reactos/ntoskrnl/mm/region.c
@@ -245,6 +245,8 @@ MmInitializeRegion(PLIST_ENTRY RegionListHead, ULONG Length, ULONG Type,
 
    Region = ExAllocatePoolWithTag(NonPagedPool, sizeof(MM_REGION),
                                   TAG_MM_REGION);
+   if (!Region) return;
+
    Region->Type = Type;
    Region->Protect = Protect;
    Region->Length = Length;
diff --git a/reactos/ntoskrnl/mm/section.c b/reactos/ntoskrnl/mm/section.c
index bec21e90e55..ab27cd9474e 100644
--- a/reactos/ntoskrnl/mm/section.c
+++ b/reactos/ntoskrnl/mm/section.c
@@ -2756,6 +2756,10 @@ ExeFmtpReadFile(IN PVOID File,
    Buffer = ExAllocatePoolWithTag(PagedPool,
                                   BufferSize,
                                   'rXmM');
+   if (!Buffer)
+   {
+      KeBugCheck(MEMORY_MANAGEMENT);
+   }
 
    UsedSize = 0;
 
diff --git a/reactos/ntoskrnl/ob/oblink.c b/reactos/ntoskrnl/ob/oblink.c
index c3b0c01e877..5b147474c0c 100644
--- a/reactos/ntoskrnl/ob/oblink.c
+++ b/reactos/ntoskrnl/ob/oblink.c
@@ -123,6 +123,7 @@ ObpParseSymbolicLink(IN PVOID ParsedObject,
     PWSTR NewTargetPath;
     ULONG LengthUsed, MaximumLength;
     NTSTATUS Status;
+    PAGED_CODE();
 
     /* Assume failure */
     *NextObject = NULL;
@@ -169,6 +170,7 @@ ObpParseSymbolicLink(IN PVOID ParsedObject,
         NewTargetPath = ExAllocatePoolWithTag(NonPagedPool,
                                               MaximumLength,
                                               TAG_SYMLINK_TTARGET);
+        if (!NewTargetPath) return STATUS_INSUFFICIENT_RESOURCES;
     }
     else
     {
diff --git a/reactos/ntoskrnl/ps/kill.c b/reactos/ntoskrnl/ps/kill.c
index 71e6f419002..92237434fa6 100644
--- a/reactos/ntoskrnl/ps/kill.c
+++ b/reactos/ntoskrnl/ps/kill.c
@@ -969,6 +969,7 @@ PspTerminateThreadByPointer(IN PETHREAD Thread,
 
     /* Allocate the APC */
     Apc = ExAllocatePoolWithTag(NonPagedPool, sizeof(KAPC), TAG_TERMINATE_APC);
+    if (!Apc) return STATUS_INSUFFICIENT_RESOURCES;
 
     /* Set the Terminated Flag */
     Flags = Thread->CrossThreadFlags | CT_TERMINATED_BIT;
diff --git a/reactos/ntoskrnl/se/semgr.c b/reactos/ntoskrnl/se/semgr.c
index b5bbc02fb15..4ceaa19c4af 100644
--- a/reactos/ntoskrnl/se/semgr.c
+++ b/reactos/ntoskrnl/se/semgr.c
@@ -86,6 +86,8 @@ BOOLEAN
 NTAPI
 SepInitializationPhase0(VOID)
 {
+    PAGED_CODE();
+
     ExpInitLuid();
     if (!SepInitSecurityIDs()) return FALSE;
     if (!SepInitDACLs()) return FALSE;