diff --git a/services/surfaceflinger/DisplayHardware/ComposerHal.cpp b/services/surfaceflinger/DisplayHardware/ComposerHal.cpp
index dbdffec..a3f1b52 100644
--- a/services/surfaceflinger/DisplayHardware/ComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/ComposerHal.cpp
@@ -1676,6 +1676,7 @@
     if (found == mReturnData.end()) {
         outClientTargetProperty->pixelFormat = PixelFormat::RGBA_8888;
         outClientTargetProperty->dataspace = Dataspace::UNKNOWN;
+        return;
     }
 
     ReturnData& data = found->second;
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.cpp b/services/surfaceflinger/DisplayHardware/HWC2.cpp
index 8ac0561..08559bd 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWC2.cpp
@@ -894,6 +894,10 @@
             mComposer.setLayerPerFrameMetadata(mDisplayId, mId, perFrameMetadatas));
 
     if (validTypes & HdrMetadata::HDR10PLUS) {
+        if (CC_UNLIKELY(mHdrMetadata.hdr10plus.size() == 0)) {
+            return Error::BAD_PARAMETER;
+        }
+
         std::vector<Hwc2::PerFrameMetadataBlob> perFrameMetadataBlobs;
         perFrameMetadataBlobs.push_back(
                 {Hwc2::PerFrameMetadataKey::HDR10_PLUS_SEI, mHdrMetadata.hdr10plus});