[Qemu-devel] Re: [PATCH] do boundary check based on absolute value

[Anthony Liguori]

Glauber Costa wrote:
> For backward operations, dstpitch and srcpitch can
> be negative. This leads BLTUNSAFE macro into an
> overflow, and as a result, it avoids performing
> operations that are perfectly valid.
>
> The visible effect that led to that patch was the gnome-panel
> bar in Fedora10. Before this patch, you could see garbage
> clobbering a big portion of the bar.
>
> After this patch, this garbage is gone.
>
>   

Applied.  Thanks.

Regards,

Anthony Liguori