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| author | Ruiyu Ni <ruiyu.ni@intel.com> | 2018-10-25 17:07:12 +0800 |
|---|---|---|
| committer | Ruiyu Ni <ruiyu.ni@intel.com> | 2018-10-29 11:11:02 +0800 |
| commit | c96de1dbaedce11489974c3e977f1de4ec5cfb84 (patch) | |
| tree | b23d8390b8754e5b731b4bc474065cab16a60c50 /BaseTools/Source/Python/Common/caching.py | |
| parent | 2f6693c283b54666def65e5e0d0b84e48b21cfef (diff) | |
| download | edk2-c96de1dbaedce11489974c3e977f1de4ec5cfb84.tar.gz edk2-c96de1dbaedce11489974c3e977f1de4ec5cfb84.tar.bz2 edk2-c96de1dbaedce11489974c3e977f1de4ec5cfb84.zip | |
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
4c034bf62cbc1f3c5f4b5df25de97f0f528132b2
*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>
Diffstat (limited to 'BaseTools/Source/Python/Common/caching.py')
0 files changed, 0 insertions, 0 deletions