From 2ed1778df9ea5d81fff22f76f125b08995454847 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Thu, 2 Nov 2023 17:49:38 +0100
Subject: [PATCH] [d3d11] Handle potential integer overflow when validating
 draw offsets

Apparently some games use -1 as an argument offset, which is nonsensical
and leads to issues.
---
 src/d3d11/d3d11_context.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/d3d11/d3d11_context.h b/src/d3d11/d3d11_context.h
index 618c07d69..7383507f0 100644
--- a/src/d3d11/d3d11_context.h
+++ b/src/d3d11/d3d11_context.h
@@ -1130,7 +1130,7 @@ namespace dxvk {
       if (likely(pBuffer != nullptr))
         bufferSize = static_cast<D3D11Buffer*>(pBuffer)->Desc()->ByteWidth;
 
-      return bufferSize >= Offset + Size;
+      return uint64_t(bufferSize) >= uint64_t(Offset) + uint64_t(Size);
     }
 
   private: