[FFmpeg-devel] [PATCH 4/4] tools/target_dec_fuzzer: Adjust max_pixels for IDCIN

[Paul B Mahol]

Why not fix issues listed in decoder code instead of this hack?

On Thu, Aug 22, 2019 at 12:21 AM Michael Niedermayer <michael at niedermayer.cc>
wrote:

> Fixes: Timeout (128sec -> 6sec)
> Fixes:
> 16568/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IDCIN_fuzzer-5675004095627264
>
> 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>
> ---
>  tools/target_dec_fuzzer.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
> index d83039417c..fd76553ec8 100644
> --- a/tools/target_dec_fuzzer.c
> +++ b/tools/target_dec_fuzzer.c
> @@ -177,6 +177,8 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t
> size) {
>      case AV_CODEC_ID_GDV:       maxpixels /= 256; break;
>          // Postprocessing in C
>      case AV_CODEC_ID_HNM4_VIDEO:maxpixels /= 128; break;
> +        // Unoptimized VLC reading and allows a small input to generate
> gigantic output
> +    case AV_CODEC_ID_IDCIN:     maxpixels /= 2048; break;
>      }
>
>
> --
> 2.23.0
>
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