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Re: [Xen-devel] [PATCH v2] fix potential int overflow in efi/boot

To: "Stefano Stabellini" <stefano@xxxxxxxxxxx>
From: "Jan Beulich" <JBeulich@xxxxxxxx>
Date: Mon, 12 Dec 2016 01:20:11 -0700
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, julien.grall@xxxxxxx, sstabellini@xxxxxxxxxx
Delivery-date: Mon, 12 Dec 2016 08:20:22 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

>>> On 09.12.16 at 20:52, <stefano@xxxxxxxxxxx> wrote:
> HorizontalResolution and VerticalResolution are 32bit, while size is
> 64bit. As it stands multiplications are evaluated with 32bit arithmetic,
> which could overflow. Cast HorizontalResolution to 64bit to avoid that.
> 
> Coverity-ID: 1381858
> 
> Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>

Acked-by: Jan Beulich <jbeulich@xxxxxxxx>


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References:
- [Xen-devel] [PATCH v2] fix potential int overflow in efi/boot
  - From: Stefano Stabellini

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