[FFmpeg-devel] [PATCH 2/8] tools/target_dec_fuzzer: adjust pixel threshold for MSRLE, as it allows coding gigantic images on tiny input

[Paul B Mahol]

lgtm

On Mon, Aug 12, 2019 at 9:19 PM Michael Niedermayer <michael at niedermayer.cc>
wrote:

> Fixes: Timeout (12sec ->2sec)
> Fixes:
> 16125/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MSRLE_fuzzer-5650846364205056
>
> 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 | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
> index e6eed88781..d83039417c 100644
> --- a/tools/target_dec_fuzzer.c
> +++ b/tools/target_dec_fuzzer.c
> @@ -170,6 +170,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t
> size) {
>      maxpixels = maxpixels_per_frame * maxiteration;
>      switch (c->id) {
>          // Allows a small input to generate gigantic output
> +    case AV_CODEC_ID_MSRLE:     maxpixels /= 16;  break;
>      case AV_CODEC_ID_QTRLE:     maxpixels /= 16;  break;
>      case AV_CODEC_ID_GIF:       maxpixels /= 16;  break;
>          // Performs slow frame rescaling in C
> --
> 2.22.0
>
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request at ffmpeg.org with subject "unsubscribe".