sfnt2fon: Avoid out-of-bounds read (AddressSanitizer).

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45422Signed-off-by: Anton Baskanov <baskanov@gmail.com> Signed-off-by: Huw Davies <huw@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

sfnt2fon: Avoid out-of-bounds read (AddressSanitizer).
2e260908 · Anton Baskanov · Alexandre Julliard · 3a54b341 · 2e260908
Commit 2e260908 authored Aug 29, 2021 by Anton Baskanov Committed by Alexandre Julliard Aug 31, 2021
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sfnt2fon.c tools/sfnt2fon/sfnt2fon.c +1 -1

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--- a/tools/sfnt2fon/sfnt2fon.c
+++ b/tools/sfnt2fon/sfnt2fon.c
@@ -743,7 +743,7 @@ static struct fontinfo *fill_fontinfo( const char *face_name, int ppem, int enc,
        for(x = 0; x < ((info->dfCharTable[i].width + 7) / 8); x++) {
            for(y = 0; y < ppem; y++) {
                if(y < ascent - face->glyph->bitmap_top ||
-                   y >=  face->glyph->bitmap.rows + ascent - face->glyph->bitmap_top) {
+                   y >= (int)face->glyph->bitmap.rows + ascent - face->glyph->bitmap_top) {
                    info->data[data_pos++] = 0;
                    continue;
                }