sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

MdeModulePkg SmmLockBox: Return updated Length for EFI_BUFFER_TOO_SMALL

Browse Source 
The updated Length value should be returned
for EFI_BUFFER_TOO_SMALL case.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
(cherry picked from commit f068aa038d)
This commit is contained in:
Star Zeng
2018-02-24 16:02:07 +08:00
parent cf7481e2f6
commit 04da8cbd1f
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
MdeModulePkg/Universal/LockBox/SmmLockBox/SmmLockBox.c
View File

@ -9,7 +9,7 @@
SmmLockBoxHandler(), SmmLockBoxRestore(), SmmLockBoxUpdate(), SmmLockBoxSave()
will receive untrusted input and do basic validation.
Copyright (c) 2010 - 2017, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions
@ -217,6 +217,9 @@ SmmLockBoxRestore (
(VOID *)(UINTN)TempLockBoxParameterRestore.Buffer,
(UINTN *)&TempLockBoxParameterRestore.Length
);
if (Status == EFI_BUFFER_TOO_SMALL) {
LockBoxParameterRestore->Length = TempLockBoxParameterRestore.Length;
}
}
LockBoxParameterRestore->Header.ReturnStatus = (UINT64)Status;
return ;