[FFmpeg-devel] [PATCH] libavcodec/vp9: fix ref-frame size judging method

[Ronald S. Bultje]

Hi,

On Mon, Apr 29, 2019 at 10:03 PM Yan Cen <mryancen at gmail.com> wrote:

> From: Yan Cen <cenx.yan at intel.com>
>
> There is no need all reference frame demension is valid in libvpx.


I think you're touching on a bigger issue here: libvpx allows having
invalid (or even missing) references, and we don't. Note that this means we
lack per-block reference validity checks in the block reconstruction code,
and your patch is not adding them, thus exposing us to potential security
issues there.

Ronald