Files
system76-edk2/MdeModulePkg
Ruiyu Ni c96de1dbae MdeModulePkg/UsbBusPei: Fix out-of-bound read access to descriptors
Today's implementation reads the Type/Length field in the USB
descriptors data without checking whether the offset to read is
beyond the data boundary.

The patch fixes this issue by syncing the fix in commit
4c034bf62c
*MdeModulePkg/UsbBus: Fix out-of-bound read access to descriptors

ParsedBytes in UsbBusPei.GetExpectedDescriptor() is different from
Consumed in UsbBusDxe.UsbCreateDesc().
ParsedBytes is the offset of found descriptor while Consumed is
offset of next descriptor of found one.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
2018-10-29 11:11:02 +08:00
..