Nikolay Sivov : dwrite: Validate buffer size passed to CreateAlphaTexture( ) against analysis texture type.
Alexandre Julliard
julliard at winehq.org
Tue Sep 5 15:18:50 CDT 2017
Module: wine
Branch: master
Commit: 0a633908410f8ecd815ab8c897768a0dfad1028e
URL: http://source.winehq.org/git/wine.git/?a=commit;h=0a633908410f8ecd815ab8c897768a0dfad1028e
Author: Nikolay Sivov <nsivov at codeweavers.com>
Date: Tue Sep 5 13:35:28 2017 +0300
dwrite: Validate buffer size passed to CreateAlphaTexture() against analysis texture type.
Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/dwrite/font.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/dlls/dwrite/font.c b/dlls/dwrite/font.c
index 4dfb47f..9af46be 100644
--- a/dlls/dwrite/font.c
+++ b/dlls/dwrite/font.c
@@ -5092,7 +5092,7 @@ static HRESULT WINAPI glyphrunanalysis_CreateAlphaTexture(IDWriteGlyphRunAnalysi
/* make sure buffer is large enough for requested texture type */
required = (bounds->right - bounds->left) * (bounds->bottom - bounds->top);
- if (type == DWRITE_TEXTURE_CLEARTYPE_3x1)
+ if (This->texture_type == DWRITE_TEXTURE_CLEARTYPE_3x1)
required *= 3;
if (size < required)
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