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

From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH 2/3] avformat/lafdec: Check if all data was read
Date: Tue, 31 Jan 2023 12:21:24 +0100
Message-ID: <GV1P250MB073738CE34E0CB69570B5E5E8FD09@GV1P250MB0737.EURP250.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <20230130234527.13149-2-michael@niedermayer.cc>

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@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

_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".