On 12/15/16, Andreas Cadhalpun <andreas.cadhal...@googlemail.com> wrote:
> Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
> ---
> libavformat/genh.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/libavformat/genh.c b/libavformat/genh.c
> index b683e02..5684352 100644
> --- a/libavformat/genh.c
> +++ b/libavformat/genh.c
> @@ -74,6 +74,11 @@ static int genh_read_header(AVFormatContext *s)
> case 0: st->codecpar->codec_id = AV_CODEC_ID_ADPCM_PSX; break;
> case 1:
> case 11: st->codecpar->bits_per_coded_sample = 4;
> + if (st->codecpar->channels > INT_MAX / 36) {
> + av_log(s, AV_LOG_ERROR, "Overflow during block alignment
> calculation 36 * %d\n",
> + st->codecpar->channels);
> + return AVERROR_INVALIDDATA;
> + }
> st->codecpar->block_align = 36 * st->codecpar->channels;
> st->codecpar->codec_id = AV_CODEC_ID_ADPCM_IMA_WAV; break;
> case 2: st->codecpar->codec_id = AV_CODEC_ID_ADPCM_DTK; break;
> --
> 2.10.2
>
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>
AFAIK codec supports only 1 or 2 channels and nothing more, but patch
if fine anyway.
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