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xwayland: Fix non-argb cursor conversion

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From the bug: "What happens if bits->width is less than 8? :)"

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=103012
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
This commit is contained in:
Olivier Fourdan 2017-09-27 18:01:01 +02:00 committed by Adam Jackson
parent a4c1e29082
commit 97ac59b1ed
1 changed files with 1 additions and 1 deletions
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hw/xwayland/xwayland-cursor.c
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@ -42,7 +42,7 @@ expand_source_and_mask(CursorPtr cursor, CARD32 *data)
(cursor->foreGreen & 0xff00) | (cursor->foreGreen >> 8);
bg = ((cursor->backRed & 0xff00) << 8) |
(cursor->backGreen & 0xff00) | (cursor->backGreen >> 8);
stride = (bits->width / 8 + 3) & ~3;
stride = BitmapBytePad(bits->width);
for (y = 0; y < bits->height; y++)
for (x = 0; x < bits->width; x++) {
i = y * stride + x / 8;