V1:
This patch is to fix the issue that StandaloneMmCore fails to detect
uncompressed inner FV.
PR: https://github.com/tianocore/edk2/pull/4943
V2:
Based on V1, fix some other issues
1. Add Missing object size checks before casting pointers to header types
a. InnerFvHeader = (EFI_FIRMWARE_VOLUME_HEADER *)SectionData;
This is introduced in V1, add the size check on SectionDataSize against
EFI_FIRMWARE_VOLUME_HEADER
b. Section = (EFI_COMMON_SECTION_HEADER *)(FileHeader + 1);
Use FfsFindSection instead of FfsFindSectionData to avoid pointer casting.
2. Fix potential memory leak issue that ScratchBuffer is not freed when page
allocation for DstBuffer fails.
PR: https://github.com/tianocore/edk2/pull/4965
V3:
1. Separate patch per individual issue fix on patch V2.
2. Fix one more issue: Limit FwVol encapsulation section recursion in
MmCoreFfsFindMmDriver().
PR: https://github.com/tianocore/edk2/pull/4975
V4:
Patch (1/4): Move the declaration of MmCoreFfsFindMmDriver() from source file
to the header file "StandaloneMmCore.h"
Patch (2/4): Handle the case that ExtractGuidedSectionDecode()'s decoded buffer
is identical to the data in InputSection
Patch (3/4): Fix the issue 'Section + 1' migth be a wrong address for
InnerFvHeader if Section is EFI_COMMON_SECTION_HEADER2.
Patch (4/4): 'Continue' if an EFI_SECTION_FIRMWARE_VOLUME_IMAGE is found, do
not look for an EFI_SECTION_GUID_DEFINED again.
PR: https://github.com/tianocore/edk2/pull/5004
For the recursion logic improvement, Let's do it in other patch set in future
after this patch is committed.
Cc: Laszlo Ersek <ler...@redhat.com>
Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org>
Cc: Sami Mujawar <sami.muja...@arm.com>
Cc: Ray Ni <ray...@intel.com>
Wei6 Xu (4):
StandaloneMmPkg/Core: Limit FwVol encapsulation section recursion
StandaloneMmPkg/Core: Fix potential memory leak issue
StandaloneMmPkg/Core: Fix issue that offset calculation might be wrong
StandaloneMmPkg/Core: Fix the failure to find uncompressed inner FV
StandaloneMmPkg/Core/Dispatcher.c | 5 --
StandaloneMmPkg/Core/FwVol.c | 88 +++++++++++++++++------
StandaloneMmPkg/Core/StandaloneMmCore.c | 7 +-
StandaloneMmPkg/Core/StandaloneMmCore.h | 26 +++++++
StandaloneMmPkg/Core/StandaloneMmCore.inf | 3 +
StandaloneMmPkg/StandaloneMmPkg.dec | 5 ++
6 files changed, 103 insertions(+), 31 deletions(-)
--
2.29.2.windows.2
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