[FFmpeg-devel] [PATCH] avcodec/mpeg4videodec: Clear interlaced_dct for studio profile

[Kieran Kunhya]

ok

On Fri, 15 Feb 2019 at 00:58 Michael Niedermayer <michael at niedermayer.cc>
wrote:

> Fixes: Out of array access
> Fixes:
> 13090/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG4_fuzzer-5408668986638336
>
> Found-by: continuous fuzzing process
> https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by
> <https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by>:
> Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavcodec/mpeg4videodec.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c
> index f44ee76bd4..ecd028a87c 100644
> --- a/libavcodec/mpeg4videodec.c
> +++ b/libavcodec/mpeg4videodec.c
> @@ -3057,6 +3057,7 @@ static int decode_studio_vop_header(Mpeg4DecContext
> *ctx, GetBitContext *gb)
>          return 0;
>
>      s->partitioned_frame = 0;
> +    s->interlaced_dct = 0;
>      s->decode_mb = mpeg4_decode_studio_mb;
>
>      decode_smpte_tc(ctx, gb);
> --
> 2.20.1
>
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