[FFmpeg-devel] [PATCH] avcodec/fft_template: Fix multiple runtime error: signed integer overflow: -1943918714 - 1935113003 cannot be represented in type 'int'

[wm4]

On Thu, 25 May 2017 16:10:49 +0200
Michael Niedermayer <michael at niedermayer.cc> wrote:

> Fixes: 1735/clusterfuzz-testcase-minimized-5350472347025408
> 
> 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/fft_template.c | 50 +++++++++++++++++++++++------------------------
>  1 file changed, 25 insertions(+), 25 deletions(-)
> 
> diff --git a/libavcodec/fft_template.c b/libavcodec/fft_template.c
> index 480557f49f..e3a37e5d69 100644
> --- a/libavcodec/fft_template.c
> +++ b/libavcodec/fft_template.c
> @@ -249,7 +249,7 @@ static void fft_calc_c(FFTContext *s, FFTComplex *z) {
>  
>      int nbits, i, n, num_transforms, offset, step;
>      int n4, n2, n34;
> -    FFTSample tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8;
> +    SUINT tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8;

I want this SUINT thing gone, not have more of it.