[PATCH v2] gdi32: Avoid visrect that exceed the actual bitmap size.
Huw Davies
huw at codeweavers.com
Thu Nov 12 04:39:19 CST 2020
On Wed, Nov 11, 2020 at 02:04:33PM +0800, Haoyang Chen wrote:
> dlls/gdi32/dib.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/dlls/gdi32/dib.c b/dlls/gdi32/dib.c
> index 10a7a957973..2c83f4127f2 100644
> --- a/dlls/gdi32/dib.c
> +++ b/dlls/gdi32/dib.c
> @@ -824,7 +824,9 @@ INT CDECL nulldrv_SetDIBitsToDevice( PHYSDEV dev, INT x_dst, INT y_dst, DWORD cx
> }
> else if (src.y >= lines) return lines;
> }
> - src_info->bmiHeader.biHeight = top_down ? -lines : lines;
> +
> + if (lines < height)
> + src_info->bmiHeader.biHeight = top_down ? -lines : lines;
> src_info->bmiHeader.biSizeImage = get_dib_image_size( src_info );
> }
Thanks for the patch. I've modified it slightly and sent in a v3.
Huw.
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