[FFmpeg-devel] [PATCH 2/3] avformat/lafdec: Check if all data was read

[Andreas Rheinhardt]

Michael Niedermayer:
> Fixes: OOM
> Fixes: 54572/clusterfuzz-testcase-minimized-ffmpeg_dem_LAF_fuzzer-4974038870523904
> 
> Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavformat/lafdec.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/libavformat/lafdec.c b/libavformat/lafdec.c
> index d02b479c4d..b78ec3649c 100644
> --- a/libavformat/lafdec.c
> +++ b/libavformat/lafdec.c
> @@ -208,6 +208,8 @@ again:
>          ret = avio_read(pb, s->data, st_count * st->codecpar->sample_rate * bpp);
>          if (ret < 0)
>              return ret;
> +        if (ret != st_count * st->codecpar->sample_rate * bpp)
> +            return AVERROR_INVALIDDATA;
>      }
>  
>      st = ctx->streams[s->index];

ffio_read()

- Andreas