MdeModulePkg/HiiDB: Avoid incorrect results of multiplication

An example:
The codes in function Output8bitPixel in Image.c:
OffsetY = BITMAP_LEN_8_BIT ((UINT32) Image->Width, Ypos);

Both Image->Width and Ypos are of type UINT16. They will be promoted to
int (signed) first, and then perform the multiplication defined by macro
BITMAP_LEN_8_BIT. If the result of multiplication between Image->Width and
Ypos exceeds the range of type int, a potential incorrect results
will be assigned to OffsetY.

This commit adds explicit UINT32 type cast for 'Image->Width' to avoid
possible overflow in the int range. And also fix similar issues in
HiiDatabase.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>

1 files changed, 12 insertions, 12 deletions

diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/Image.c b/MdeModulePkg/Universal/HiiDatabaseDxe/Image.c
index e2fa16e..431a5b8 100644
--- a/MdeModulePkg/Universal/HiiDatabaseDxe/Image.c
+++ b/MdeModulePkg/Universal/HiiDatabaseDxe/Image.c
@@ -105,7 +105,7 @@ GetImageIdOrAddress (
     case EFI_HII_IIBT_IMAGE_8BIT_TRANS:

       Length = sizeof (EFI_HII_IIBT_IMAGE_8BIT_BLOCK) - sizeof (UINT8) +

                BITMAP_LEN_8_BIT (

-                 ReadUnaligned16 (&((EFI_HII_IIBT_IMAGE_8BIT_BLOCK *) CurrentImageBlock)->Bitmap.Width),

+                 (UINT32) ReadUnaligned16 (&((EFI_HII_IIBT_IMAGE_8BIT_BLOCK *) CurrentImageBlock)->Bitmap.Width),

                  ReadUnaligned16 (&((EFI_HII_IIBT_IMAGE_8BIT_BLOCK *) CurrentImageBlock)->Bitmap.Height)

                  );

       ImageIdCurrent++;

@@ -115,7 +115,7 @@ GetImageIdOrAddress (
     case EFI_HII_IIBT_IMAGE_24BIT_TRANS:

       Length = sizeof (EFI_HII_IIBT_IMAGE_24BIT_BLOCK) - sizeof (EFI_HII_RGB_PIXEL) +

                BITMAP_LEN_24_BIT (

-                 ReadUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) CurrentImageBlock)->Bitmap.Width),

+                 (UINT32) ReadUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) CurrentImageBlock)->Bitmap.Width),

                  ReadUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) CurrentImageBlock)->Bitmap.Height)

                  );

       ImageIdCurrent++;

@@ -453,7 +453,7 @@ Output8bitPixel (
   // Convert the pixel from 8 bits to corresponding color.

   //

   for (Ypos = 0; Ypos < Image->Height; Ypos++) {

-    OffsetY = BITMAP_LEN_8_BIT (Image->Width, Ypos);

+    OffsetY = BITMAP_LEN_8_BIT ((UINT32) Image->Width, Ypos);

     //

     // All bits are meaningful since the bitmap is 8 bits per pixel.

     //

@@ -493,7 +493,7 @@ Output24bitPixel (
   BitMapPtr = Image->Bitmap;

 

   for (Ypos = 0; Ypos < Image->Height; Ypos++) {

-    OffsetY = BITMAP_LEN_8_BIT (Image->Width, Ypos);

+    OffsetY = BITMAP_LEN_8_BIT ((UINT32) Image->Width, Ypos);

     CopyRgbToGopPixel (&BitMapPtr[OffsetY], &Data[OffsetY], Image->Width);

   }

 

@@ -650,7 +650,7 @@ HiiNewImage (
   }

 

   NewBlockSize = sizeof (EFI_HII_IIBT_IMAGE_24BIT_BLOCK) - sizeof (EFI_HII_RGB_PIXEL) +

-                 BITMAP_LEN_24_BIT (Image->Width, Image->Height);

+                 BITMAP_LEN_24_BIT ((UINT32) Image->Width, Image->Height);

 

   //

   // Get the image package in the package list,

@@ -753,7 +753,7 @@ HiiNewImage (
   }

   WriteUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) ImageBlocks)->Bitmap.Width, Image->Width);

   WriteUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) ImageBlocks)->Bitmap.Height, Image->Height);

-  CopyGopToRgbPixel (((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) ImageBlocks)->Bitmap.Bitmap, Image->Bitmap, Image->Width * Image->Height);

+  CopyGopToRgbPixel (((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) ImageBlocks)->Bitmap.Bitmap, Image->Bitmap, (UINT32) Image->Width * Image->Height);

 

   //

   // Append the block end

@@ -896,7 +896,7 @@ IGetImage (
     //

     CopyMem (&Iibt1bit, CurrentImageBlock, sizeof (EFI_HII_IIBT_IMAGE_1BIT_BLOCK));

     ImageLength = sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL) *

-                  (Iibt1bit.Bitmap.Width * Iibt1bit.Bitmap.Height);

+                  ((UINT32) Iibt1bit.Bitmap.Width * Iibt1bit.Bitmap.Height);

     Image->Bitmap = AllocateZeroPool (ImageLength);

     if (Image->Bitmap == NULL) {

       return EFI_OUT_OF_RESOURCES;

@@ -947,7 +947,7 @@ IGetImage (
   case EFI_HII_IIBT_IMAGE_24BIT:

     Width = ReadUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) CurrentImageBlock)->Bitmap.Width);

     Height = ReadUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) CurrentImageBlock)->Bitmap.Height);

-    ImageLength = sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL) * (Width * Height);

+    ImageLength = sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL) * ((UINT32) Width * Height);

     Image->Bitmap = AllocateZeroPool (ImageLength);

     if (Image->Bitmap == NULL) {

       return EFI_OUT_OF_RESOURCES;

@@ -1095,7 +1095,7 @@ HiiSetImage (
   case EFI_HII_IIBT_IMAGE_8BIT_TRANS:

     OldBlockSize = sizeof (EFI_HII_IIBT_IMAGE_8BIT_BLOCK) - sizeof (UINT8) +

                    BITMAP_LEN_8_BIT (

-                     ReadUnaligned16 (&((EFI_HII_IIBT_IMAGE_8BIT_BLOCK *) CurrentImageBlock)->Bitmap.Width),

+                     (UINT32) ReadUnaligned16 (&((EFI_HII_IIBT_IMAGE_8BIT_BLOCK *) CurrentImageBlock)->Bitmap.Width),

                      ReadUnaligned16 (&((EFI_HII_IIBT_IMAGE_8BIT_BLOCK *) CurrentImageBlock)->Bitmap.Height)

                      );

     break;

@@ -1103,7 +1103,7 @@ HiiSetImage (
   case EFI_HII_IIBT_IMAGE_24BIT_TRANS:

     OldBlockSize = sizeof (EFI_HII_IIBT_IMAGE_24BIT_BLOCK) - sizeof (EFI_HII_RGB_PIXEL) +

                    BITMAP_LEN_24_BIT (

-                     ReadUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) CurrentImageBlock)->Bitmap.Width),

+                     (UINT32) ReadUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) CurrentImageBlock)->Bitmap.Width),

                      ReadUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) CurrentImageBlock)->Bitmap.Height)

                      );

     break;

@@ -1115,7 +1115,7 @@ HiiSetImage (
   // Create the new image block according to input image.

   //

   NewBlockSize = sizeof (EFI_HII_IIBT_IMAGE_24BIT_BLOCK) - sizeof (EFI_HII_RGB_PIXEL) +

-                 BITMAP_LEN_24_BIT (Image->Width, Image->Height);

+                 BITMAP_LEN_24_BIT ((UINT32) Image->Width, Image->Height);

   //

   // Adjust the image package to remove the original block firstly then add the new block.

   //

@@ -1140,7 +1140,7 @@ HiiSetImage (
   WriteUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) NewImageBlock)->Bitmap.Width, Image->Width);

   WriteUnaligned16 ((VOID *) &((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) NewImageBlock)->Bitmap.Height, Image->Height);

   CopyGopToRgbPixel (((EFI_HII_IIBT_IMAGE_24BIT_BLOCK *) NewImageBlock)->Bitmap.Bitmap,

-                       Image->Bitmap, Image->Width * Image->Height);

+                       Image->Bitmap, (UINT32) Image->Width * Image->Height);

 

   CopyMem ((UINT8 *) NewImageBlock + NewBlockSize, (UINT8 *) CurrentImageBlock + OldBlockSize, Part2Size);