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-rw-r--r--EmulatorPkg/EmuGopDxe/GopInput.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/EmulatorPkg/EmuGopDxe/GopInput.c b/EmulatorPkg/EmuGopDxe/GopInput.c
index 1d40b1d7d6..97a5fbc1ad 100644
--- a/EmulatorPkg/EmuGopDxe/GopInput.c
+++ b/EmulatorPkg/EmuGopDxe/GopInput.c
@@ -1,6 +1,6 @@
/*++ @file
-Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2010 0 2011,Apple Inc. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -442,11 +442,20 @@ EmuGopSimpleTextInExSetState (
EFI_STATUS Status;
EFI_TPL OldTpl;
+ if (KeyToggleState == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_EX_THIS (This);
if (Private->EmuGraphicsWindow == NULL) {
return EFI_NOT_READY;
}
+ if (((Private->KeyState.KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID) ||
+ ((*KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID)) {
+ return EFI_UNSUPPORTED;
+ }
+
//
// Enter critical section
//