diff --git a/src/data-model-providers/codegen/EmberAttributeDataBuffer.cpp b/src/data-model-providers/codegen/EmberAttributeDataBuffer.cpp
index 84ad9de070ff2d..f8f041f6ee2e38 100644
--- a/src/data-model-providers/codegen/EmberAttributeDataBuffer.cpp
+++ b/src/data-model-providers/codegen/EmberAttributeDataBuffer.cpp
@@ -244,6 +244,7 @@ CHIP_ERROR EmberAttributeDataBuffer::DecodeAsString(chip::TLV::TLVReader & reade
     // data copy
     const uint8_t * tlvData;
     ReturnErrorOnFailure(reader.GetDataPtr(tlvData));
+    VerifyOrReturnError(tlvData != nullptr, CHIP_ERROR_INVALID_TLV_ELEMENT);
     writer.Put(tlvData, stringLength);
 
     return CHIP_NO_ERROR;