Am Sa., 2. Nov. 2019 um 17:08 Uhr schrieb Michael Niedermayer
<mich...@niedermayer.cc>:
>
> Fixes: Timeout (23sec -> 5ms)
> Fixes: 
> 18517/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_NUV_fuzzer-5753135536013312
>
> Found-by: continuous fuzzing process 
> https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
> ---
>  libavcodec/nuv.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/libavcodec/nuv.c b/libavcodec/nuv.c
> index bb80e3e884..0fa61a239d 100644
> --- a/libavcodec/nuv.c
> +++ b/libavcodec/nuv.c
> @@ -219,6 +219,11 @@ static int decode_frame(AVCodecContext *avctx, void 
> *data, int *got_frame,
>      case NUV_RTJPEG:
>          minsize = c->width/16 * (c->height/16) * 6;
>          break;

> +    case NUV_BLACK: case NUV_COPY_LAST: case NUV_LZO: case NUV_RTJPEG_IN_LZO:

This style is ugly and different from the rest of the file.

> +        break;
> +    default:
> +        av_log(avctx, AV_LOG_ERROR, "unknown compression\n");
> +        return AVERROR_INVALIDDATA;
>      }
>      if (buf_size < minsize / 4)
>          return AVERROR_INVALIDDATA;
> @@ -307,9 +312,6 @@ retry:
>      case NUV_COPY_LAST:
>          /* nothing more to do here */
>          break;
> -    default:
> -        av_log(avctx, AV_LOG_ERROR, "unknown compression\n");
> -        return AVERROR_INVALIDDATA;

Carl Eugen
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