audk/MdePkg
Hao Wu 458cd568b6 MdePkg/UefiLib: Avoid mis-calculate of graphic console size
The commit adds check in function InternalPrintGraphic() to ensure that
the expression:

Blt->Width * Blt->Height * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)

will not overflow in the UINTN range.

The commit also adds an explicit UINT32 type cast for 'Blt->Width' to
avoid possible overflow in the int range for:

Blt->Width * Blt->Height

Since both Blt->Width and Blt->Height are of type UINT16. They will be
promoted to int (signed) first, and then perform the multiplication
operation. If the result of multiplication between Blt->Width and
Blt->Height exceeds the range of type int, a potential incorrect size will
be passed into function AllocateZeroPool().

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2017-04-14 13:16:05 +08:00
..
Include MdePkg/PeCoffGetEntryPointLib: Add PeCoffSerachImageBase() 2017-04-07 09:43:36 +08:00
Library MdePkg/UefiLib: Avoid mis-calculate of graphic console size 2017-04-14 13:16:05 +08:00
Contributions.txt */Contributions.txt: Update example email address 2015-02-03 17:29:14 +00:00
License.txt Update copyright format 2012-04-24 06:49:39 +00:00
MdePkg.dec MdePkg/Include: Add SmiHandlerProfileLib.h 2017-02-22 15:28:09 +08:00
MdePkg.dsc MdePkg: BaseIoLibIntrinsic (IoLib class) library 2017-04-13 13:16:00 +08:00
MdePkg.uni MdePkg/MdePkg.uni: Add description for PcdUartDefaultReceiveFifoDepth 2016-04-05 14:09:32 +08:00
MdePkgExtra.uni MdePkg: Convert all .uni files to utf-8 2015-12-15 04:53:50 +00:00