From: Kun Qin <ku...@microsoft.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4491
mAvailableAlgoArray is currently allocated for "RNG_AVAILABLE_ALGO_MAX"
number of bytes, whereas it was dereferenced as "EFI_RNG_ALGORITHM".
This change fixed the buffer allocation logic by allocating a proper size
of buffer before referencing.
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Jian J Wang <jian.j.w...@intel.com>
Cc: Sami Mujawar <sami.muja...@arm.com>
Cc: Pierre Gondois <pierre.gond...@arm.com>
Signed-off-by: Kun Qin <ku...@microsoft.com>
---
SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/AArch64Algo.c | 2 +-
SecurityPkg/RandomNumberGenerator/RngDxe/Arm/ArmAlgo.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/AArch64Algo.c
b/SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/AArch64Algo.c
index de279cdadeea..1d412ecff61d 100644
--- a/SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/AArch64Algo.c
+++ b/SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/AArch64Algo.c
@@ -33,7 +33,7 @@ GetAvailableAlgorithms (
UINT16 MinorRevision;
// Rng algorithms 2 times, one for the allocation, one to populate.
- mAvailableAlgoArray = AllocateZeroPool (RNG_AVAILABLE_ALGO_MAX);
+ mAvailableAlgoArray = AllocateZeroPool (RNG_AVAILABLE_ALGO_MAX * sizeof
(EFI_RNG_ALGORITHM));
if (mAvailableAlgoArray == NULL) {
return EFI_OUT_OF_RESOURCES;
}
diff --git a/SecurityPkg/RandomNumberGenerator/RngDxe/Arm/ArmAlgo.c
b/SecurityPkg/RandomNumberGenerator/RngDxe/Arm/ArmAlgo.c
index 4b24f5c4a69b..5e621df601fb 100644
--- a/SecurityPkg/RandomNumberGenerator/RngDxe/Arm/ArmAlgo.c
+++ b/SecurityPkg/RandomNumberGenerator/RngDxe/Arm/ArmAlgo.c
@@ -32,7 +32,7 @@ GetAvailableAlgorithms (
UINT16 MinorRevision;
// Rng algorithms 2 times, one for the allocation, one to populate.
- mAvailableAlgoArray = AllocateZeroPool (RNG_AVAILABLE_ALGO_MAX);
+ mAvailableAlgoArray = AllocateZeroPool (RNG_AVAILABLE_ALGO_MAX * sizeof
(EFI_RNG_ALGORITHM));
if (mAvailableAlgoArray == NULL) {
return EFI_OUT_OF_RESOURCES;
}
--
2.41.0.windows.1
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