diff --git a/src/d3d9/d3d9_device.cpp b/src/d3d9/d3d9_device.cpp
index 3fbc0743..315ff6b5 100644
--- a/src/d3d9/d3d9_device.cpp
+++ b/src/d3d9/d3d9_device.cpp
@@ -925,6 +925,12 @@ namespace dxvk {
     blitInfo.srcOffsets[1] = pSourceRect != nullptr
       ? VkOffset3D{ int32_t(pSourceRect->right), int32_t(pSourceRect->bottom), 1 }
       : VkOffset3D{ int32_t(srcExtent.width),    int32_t(srcExtent.height),    1 };
+
+    if (unlikely(IsBlitRegionInvalid(blitInfo.srcOffsets, srcExtent)))
+      return D3DERR_INVALIDCALL;
+
+    if (unlikely(IsBlitRegionInvalid(blitInfo.dstOffsets, dstExtent)))
+      return D3DERR_INVALIDCALL;
     
     VkExtent3D srcCopyExtent =
     { uint32_t(blitInfo.srcOffsets[1].x - blitInfo.srcOffsets[0].x),
diff --git a/src/d3d9/d3d9_util.h b/src/d3d9/d3d9_util.h
index 4d0f78a0..2ef074cc 100644
--- a/src/d3d9/d3d9_util.h
+++ b/src/d3d9/d3d9_util.h
@@ -247,6 +247,16 @@ namespace dxvk {
         || (srcFormat == D3D9Format::A4R4G4B4 && dstFormat == D3D9Format::X4R4G4B4);
   }
 
+  inline bool IsBlitRegionInvalid(VkOffset3D offsets[2], VkExtent3D extent) {
+    // Only bother checking x, y as we don't have 3D blits.
+    return offsets[1].x < offsets[0].x ||
+           offsets[1].y < offsets[0].y ||
+           offsets[0].x < 0             ||
+           offsets[0].y < 0             ||
+           offsets[1].x > extent.width  ||
+           offsets[1].y > extent.height;
+  }
+
   enum D3D9TextureStageStateTypes : uint32_t
   {
       DXVK_TSS_COLOROP        =  0,