Henri Verbeet : d3dcompiler: Check for minimum bytecode size in d3dcompiler_strip_shader().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 3fbfd1da2ca1523e078382bf30e9c13c3d1ad938
URL:    https://gitlab.winehq.org/wine/wine/-/commit/3fbfd1da2ca1523e078382bf30e9c13...

Author: Henri Verbeet 
Date:   Tue Apr 11 17:58:01 2023 +0200

d3dcompiler: Check for minimum bytecode size in d3dcompiler_strip_shader().

---

dlls/d3dcompiler_43/blob.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/d3dcompiler_43/blob.c b/dlls/d3dcompiler_43/blob.c
index 7a76fa0adce..3477469f9c3 100644
--- a/dlls/d3dcompiler_43/blob.c
+++ b/dlls/d3dcompiler_43/blob.c
@@ -367,7 +367,7 @@ static HRESULT d3dcompiler_strip_shader(const void *data, SIZE_T data_size, UINT
         return E_FAIL;
     }

-    if (!data || !data_size)
+    if (!data || data_size < DXBC_HEADER_SIZE)
     {
         WARN("Invalid arguments: data %p, data_size %Iu.\n", data, data_size);
         return D3DERR_INVALIDCALL;