[FFmpeg-devel] [PATCH 11/12] avcodec/loco: Check for end of input in the first line

[Paul B Mahol]

lgtm

On 9/25/19, Michael Niedermayer <michael at niedermayer.cc> wrote:
> Fixes: Timeout (85sec -> 0.1sec)
> Fixes:
> 17634/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5666410809786368
>
> Found-by: continuous fuzzing process
> https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavcodec/loco.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/libavcodec/loco.c b/libavcodec/loco.c
> index d8bf68a100..e891d83ece 100644
> --- a/libavcodec/loco.c
> +++ b/libavcodec/loco.c
> @@ -155,6 +155,8 @@ static int loco_decode_plane(LOCOContext *l, uint8_t
> *data, int width, int heigh
>      /* restore top line */
>      for (i = 1; i < width; i++) {
>          val = loco_get_rice(&rc);
> +        if (val == INT_MIN)
> +           return AVERROR_INVALIDDATA;
>          data[i] = data[i - 1] + val;
>      }
>      data += stride;
> --
> 2.23.0
>
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