Am Do., 9. Jan. 2020 um 04:54 Uhr schrieb Xingwen.Fang <show...@qq.com>:
>
> From: Xingwen Fang <f...@rock-chips.com>
>
> When the block size is illegal, we don't need to read the
> block data. Otherwise, there will be abnormal memory access
> in dsp.mlp_filter_channel.
>
> Signed-off-by: Xingwen Fang <f...@rock-chips.com>
> ---
> libavcodec/mlpdec.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/libavcodec/mlpdec.c b/libavcodec/mlpdec.c
> index 39c4091..198d3c0 100644
> --- a/libavcodec/mlpdec.c
> +++ b/libavcodec/mlpdec.c
> @@ -1263,6 +1263,11 @@ static int read_access_unit(AVCodecContext *avctx,
> void* data,
> if (!s->restart_seen)
> goto next_substr;
>
> + if (s->blocksize < 8) {
> + av_log(m->avctx, AV_LOG_ERROR, "Block size is too small.\n");
> + goto next_substr;
> + }
Can you provide a sample file that shows the invalid memory access?
Carl Eugen
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
