diff --git a/image/Downscaler.cpp b/image/Downscaler.cpp
index f8578ab0b0a9..b6ec349c123b 100644
--- a/image/Downscaler.cpp
+++ b/image/Downscaler.cpp
@@ -106,11 +106,21 @@ Downscaler::BeginFrame(const nsIntSize& aOriginalSize,
                                0, mTargetSize.width,
                                mXFilter.get());
 
+  if (mXFilter->max_filter() <= 0 || mXFilter->num_values() != mTargetSize.width) {
+    NS_WARNING("Failed to compute filters for image downscaling");
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
   skia::resize::ComputeFilters(resizeMethod,
                                mOriginalSize.height, mTargetSize.height,
                                0, mTargetSize.height,
                                mYFilter.get());
 
+  if (mYFilter->max_filter() <= 0 || mYFilter->num_values() != mTargetSize.height) {
+    NS_WARNING("Failed to compute filters for image downscaling");
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
   // Allocate the buffer, which contains scanlines of the original image.
   // pad by 15 to handle overreads by the simd code
   size_t bufferLen = mOriginalSize.width * sizeof(uint32_t) + 15;