[FONT][WIN32SS] Hold the freetype lock while accessing freetype data

diff --git a/win32ss/gdi/ntgdi/freetype.c b/win32ss/gdi/ntgdi/freetype.c
index 08d164a..93abca4 100644 (file)
--- a/win32ss/gdi/ntgdi/freetype.c
+++ b/win32ss/gdi/ntgdi/freetype.c
@@ -6798,8 +6798,12 @@ NtGdiGetGlyphIndicesW(
         FT_Face Face = FontGDI->SharedFace->Face;
         if (FT_IS_SFNT(Face))
         {
-            TT_OS2 *pOS2 = FT_Get_Sfnt_Table(Face, ft_sfnt_os2);
+            TT_OS2 *pOS2;
+            
+            IntLockFreeType();
+            pOS2 = FT_Get_Sfnt_Table(Face, ft_sfnt_os2);
             DefChar = (pOS2->usDefaultChar ? get_glyph_index(Face, pOS2->usDefaultChar) : 0);
+            IntUnLockFreeType();
         }
         else
         {