On Mon, Dec 15, 2014 at 10:54 AM, Anton Khirnov <[email protected]> wrote:
> From: Michael Niedermayer <[email protected]>
>
> Fixes invalid memory access.
>
> CC: [email protected]
> Bug-ID: CVE-2014-8549
> Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
> Signed-off-by: Anton Khirnov <[email protected]>
> ---
>  libavcodec/on2avc.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/libavcodec/on2avc.c b/libavcodec/on2avc.c
> index deaa2b4..12f1ef6 100644
> --- a/libavcodec/on2avc.c
> +++ b/libavcodec/on2avc.c
> @@ -918,6 +918,10 @@ static av_cold int on2avc_decode_init(AVCodecContext 
> *avctx)
>          av_log(avctx, AV_LOG_ERROR, "0x500 version should be mono\n");
>          return AVERROR_INVALIDDATA;
>      }
> +    if (avctx->channels > 2) {
> +        avpriv_request_sample(avctx, "Decoding more than 2 channels");
> +        return AVERROR_PATCHWELCOME;

iirc this format supports only mono and stereo, no?
-- 
Vittorio
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