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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=973 Bug 973 just mentions UsbBusDxe, but UsbBusPei has similar issue. HUB descriptor has variable length. But the code uses stack (HubDescriptor in PeiDoHubConfig) with fixed length sizeof(EFI_USB_HUB_DESCRIPTOR) to hold HUB descriptor data. It uses hard code length value (12) for SuperSpeed path. And it uses HubDesc->Length for none SuperSpeed path, then there will be stack overflow when HubDesc->Length is greater than sizeof(EFI_USB_HUB_DESCRIPTOR). The patch updates the code to use a big enough buffer to hold the descriptor data. Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Bret Barkelew <bret.barkelew@microsoft.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Bret Barkelew <bret.barkelew@microsoft.com>
EDK II Project
A modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications from www.uefi.org.
Contributions to the EDK II open source project are covered by the TianoCore Contribution Agreement 1.1
The majority of the content in the EDK II open source project uses a BSD 2-Clause License. The EDK II open source project contains the following components that are covered by additional licenses:
- AppPkg/Applications/Python/Python-2.7.2/Tools/pybench
- AppPkg/Applications/Python/Python-2.7.2
- AppPkg/Applications/Python/Python-2.7.10
- BaseTools/Source/C/BrotliCompress
- MdeModulePkg/Library/BrotliCustomDecompressLib
- OvmfPkg
- CryptoPkg/Library/OpensslLib/openssl
The EDK II Project is composed of packages. The maintainers for each package are listed in Maintainers.txt.