Reviewed-by: [email protected] > -----Original Message----- > From: Zeng, Star > Sent: Saturday, February 24, 2018 6:21 PM > To: [email protected] > Cc: Zeng, Star <[email protected]>; Yao, Jiewen <[email protected]> > Subject: [PATCH] MdeModulePkg SmmLockBox: Return updated Length for > EFI_BUFFER_TOO_SMALL > > The updated Length value should be returned > for EFI_BUFFER_TOO_SMALL case. > > Cc: Jiewen Yao <[email protected]> > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Star Zeng <[email protected]> > --- > MdeModulePkg/Universal/LockBox/SmmLockBox/SmmLockBox.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/MdeModulePkg/Universal/LockBox/SmmLockBox/SmmLockBox.c > b/MdeModulePkg/Universal/LockBox/SmmLockBox/SmmLockBox.c > index 2dc8815f2eb5..d4183ca4b057 100644 > --- a/MdeModulePkg/Universal/LockBox/SmmLockBox/SmmLockBox.c > +++ b/MdeModulePkg/Universal/LockBox/SmmLockBox/SmmLockBox.c > @@ -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 ; > -- > 2.7.0.windows.1
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