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-rw-r--r--SecurityPkg/Tcg/TcgDxe/TcgDxe.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/SecurityPkg/Tcg/TcgDxe/TcgDxe.c b/SecurityPkg/Tcg/TcgDxe/TcgDxe.c
index fea59c35b6..5ef34d0ba2 100644
--- a/SecurityPkg/Tcg/TcgDxe/TcgDxe.c
+++ b/SecurityPkg/Tcg/TcgDxe/TcgDxe.c
@@ -352,6 +352,10 @@ TcgDxeLogEvent (
{
TCG_DXE_DATA *TcgData;
+ if (TCGLogData == NULL){
+ return EFI_INVALID_PARAMETER;
+ }
+
TcgData = TCG_DXE_DATA_FROM_THIS (This);
if (TcgData->BsCap.TPMDeactivatedFlag) {
@@ -438,7 +442,11 @@ TcgDxeHashLogExtendEventI (
{
EFI_STATUS Status;
- if (HashDataLen > 0) {
+ if (HashData == NULL && HashDataLen > 0) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (HashDataLen > 0 || HashData != NULL) {
Status = TpmCommHashAll (
HashData,
(UINTN) HashDataLen,
@@ -498,6 +506,10 @@ TcgDxeHashLogExtendEvent (
{
TCG_DXE_DATA *TcgData;
+ if (TCGLogData == NULL || EventLogLastEntry == NULL){
+ return EFI_INVALID_PARAMETER;
+ }
+
TcgData = TCG_DXE_DATA_FROM_THIS (This);
if (TcgData->BsCap.TPMDeactivatedFlag) {