[WIN32K] Add some missing range checks in ftGdiGetGlyphOutline. Fixes some gdi32...

svn path=/trunk/; revision=67947

diff --git a/reactos/win32ss/gdi/ntgdi/freetype.c b/reactos/win32ss/gdi/ntgdi/freetype.c
index f7e1ab3..2486d7f 100644 (file)
--- a/reactos/win32ss/gdi/ntgdi/freetype.c
+++ b/reactos/win32ss/gdi/ntgdi/freetype.c
@@ -2053,6 +2053,9 @@ ftGdiGetGlyphOutline(
         needed = pitch * height;
 
         if (!pvBuf || !cjBuf) break;
+        if (!needed) return GDI_ERROR;  /* empty glyph */
+        if (needed > cjBuf)
+            return GDI_ERROR;
 
         switch (ft_face->glyph->format)
         {
@@ -2108,6 +2111,9 @@ ftGdiGetGlyphOutline(
         needed = pitch * height;
 
         if (!pvBuf || !cjBuf) break;
+        if (!needed) return GDI_ERROR;  /* empty glyph */
+        if (needed > cjBuf)
+            return GDI_ERROR;
 
         switch (ft_face->glyph->format)
         {