d3d10: Validate the DXBC version.

Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

d3d10: Validate the DXBC version.
8553df47 · Henri Verbeet · Alexandre Julliard · e72db8de · 8553df47
Commit 8553df47 authored Jan 19, 2018 by Henri Verbeet Committed by Alexandre Julliard Jan 19, 2018
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utils.c dlls/d3d10/utils.c +8 -1

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--- a/dlls/d3d10/utils.c
+++ b/dlls/d3d10/utils.c
@@ -159,6 +159,7 @@ HRESULT parse_dxbc(const char *data, SIZE_T data_size,
    DWORD chunk_count;
    DWORD total_size;
    unsigned int i;
+    DWORD version;
    DWORD tag;

    if (!data)
@@ -179,7 +180,13 @@ HRESULT parse_dxbc(const char *data, SIZE_T data_size,
    /* checksum? */
    skip_dword_unknown("DXBC header", &ptr, 4);

-    skip_dword_unknown("DXBC header", &ptr, 1);
+    read_dword(&ptr, &version);
+    TRACE("version: %#x.\n", version);
+    if (version != 0x00000001)
+    {
+        WARN("Got unexpected DXBC version %#x.\n", version);
+        return E_FAIL;
+    }

    read_dword(&ptr, &total_size);
    TRACE("total size: %#x\n", total_size);