diff --git a/services/viz/public/cpp/compositing/bitmap_in_shared_memory_mojom_traits.cc b/services/viz/public/cpp/compositing/bitmap_in_shared_memory_mojom_traits.cc
index aac9ee18fb5c96ae6518c4d99e619f56787b8e17..9ff3e3120fde2672609575544ddbe285213d659d 100644
--- a/services/viz/public/cpp/compositing/bitmap_in_shared_memory_mojom_traits.cc
+++ b/services/viz/public/cpp/compositing/bitmap_in_shared_memory_mojom_traits.cc
@@ -76,6 +76,10 @@ bool StructTraits<viz::mojom::BitmapInSharedMemoryDataView, SkBitmap>::Read(
   if (!mapping_ptr->IsValid())
     return false;
 
+  if (mapping_ptr->size() < image_info.computeByteSize(data.row_bytes())) {
+    return false;
+  }
+
   if (!sk_bitmap->installPixels(image_info, mapping_ptr->memory(),
                                 data.row_bytes(), &DeleteSharedMemoryMapping,
                                 mapping_ptr.get())) {