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5323e918c3
mirror_edk2/MdeModulePkg
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Jian J Wang 5323e918c3 MdeModulePkg: introduce UEFI freed-memory guard bit in HeapGuard PCD 
UAF (Use-After-Free) memory issue is kind of illegal access to memory
which has been freed. It can be detected by a new freed-memory guard
enforced onto freed memory.

BIT4 of following PCD is used to enable the freed-memory guard feature.

  gEfiMdeModulePkgTokenSpaceGuid.PcdHeapGuardPropertyMask

Please note this feature is for debug purpose and should not be enabled
in product BIOS, and cannot be enabled with pool/page heap guard at the
same time. It's disabled by default.

Cc: Star Zeng <star.zeng@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2018-10-26 10:27:20 +08:00
..
Application MdeModulePkg CapsuleApp:Remove two redundant Guids 2018-09-21 11:34:42 +08:00
Bus MdeModulePkg/NvmExpressDxe: Refine PassThru IO queue creation behavior 2018-10-25 12:41:37 +08:00
Core MdeModulePkg/DxeIpl: support more NX related PCDs 2018-09-26 08:55:10 +08:00
Include MdeModulePkg: Removing ipf which is no longer supported from edk2. 2018-09-06 15:25:16 +08:00
Library MdeModulePkg BrotliDecompressLib: Add the checker to avoid array out of bound 2018-10-19 08:21:47 +08:00
Logo MdeModulePkg: Removing ipf which is no longer supported from edk2. 2018-09-06 15:25:16 +08:00
Universal MdeModulePkg/UdfDxe: Avoid possible use of already-freed data 2018-10-23 14:25:04 +08:00
MdeModulePkg.dec MdeModulePkg: introduce UEFI freed-memory guard bit in HeapGuard PCD 2018-10-26 10:27:20 +08:00
MdeModulePkg.dsc MdeModulePkg BrotliCustomDecompressLib: Don't build it for EBC arch 2018-10-15 15:55:55 +08:00
MdeModulePkg.uni MdeModulePkg: introduce UEFI freed-memory guard bit in HeapGuard PCD 2018-10-26 10:27:20 +08:00
MdeModulePkgExtra.uni MdeModulePkg: Clean up source files 2018-06-28 11:19:45 +08:00