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https://github.com/tianocore/edk2
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As reported in CVE-2024-13745 via oss-sec, DxeTpm2MeasureBootLib can measure a partition table that differs from the one parsed by the PartitionDxe driver. To address this, the more complete GPT parsing logic from PartitionDxe is extracted into a standalone GptLib library so it can be shared between PartitionDxe and DxeTpm2MeasureBootLib. This ensures that the exact same partition table measured into PCR[5] is the one parsed and used by the system. PartitionDxe behavior is unchanged. Ref: https://seclists.org/oss-sec/2026/q2/727 Signed-off-by: Richard Lyu <richard.lyu@suse.com>
49 lines
1.5 KiB
INI
49 lines
1.5 KiB
INI
## @file
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# Shared GUID Partition Table (GPT) parsing and validation library.
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#
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# Provides the GPT table parsing, validation and restore routines that are
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# shared between the Partition driver and other consumers that must parse the
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# same on-disk GPT layout.
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#
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# Caution: This library requires additional review when modified.
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# This library will have external input - disk partition.
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# This external input must be validated carefully to avoid security issue like
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# buffer overflow, integer overflow.
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#
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# Copyright (c) 2026, SUSE LLC. All rights reserved.<BR>
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# Copyright (c) 2018 Qualcomm Datacenter Technologies, Inc.
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# Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = GptLib
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FILE_GUID = E228F30C-C7D5-4A93-BBA7-B4E22327E289
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MODULE_TYPE = DXE_DRIVER
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VERSION_STRING = 1.0
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LIBRARY_CLASS = GptLib
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#
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# The following information is for reference only and not required by the build tools.
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#
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# VALID_ARCHITECTURES = IA32 X64 EBC AARCH64 RISCV64 LOONGARCH64
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#
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[Sources]
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Gpt.c
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[Packages]
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MdePkg/MdePkg.dec
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MdeModulePkg/MdeModulePkg.dec
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[LibraryClasses]
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BaseLib
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BaseMemoryLib
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DebugLib
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MemoryAllocationLib
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UefiBootServicesTableLib
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[Guids]
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gEfiPartTypeUnusedGuid ## SOMETIMES_CONSUMES ## GUID
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