[FFmpeg-devel] [PATCH v3 2/3] avfilter/vf_mix: Check sscanf() return value

[lance.lmwang at gmail.com]

will apply the patchset 2 and 3.

On Sun, Mar 29, 2020 at 09:08:13AM +0800, lance.lmwang at gmail.com wrote:
> From: Limin Wang <lance.lmwang at gmail.com>
> 
> Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> ---
>  libavfilter/vf_mix.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/libavfilter/vf_mix.c b/libavfilter/vf_mix.c
> index 9e1ae79..9bb1b7a 100644
> --- a/libavfilter/vf_mix.c
> +++ b/libavfilter/vf_mix.c
> @@ -108,7 +108,10 @@ static av_cold int init(AVFilterContext *ctx)
>              break;
>  
>          p = NULL;
> -        av_sscanf(arg, "%f", &s->weights[i]);
> +        if (av_sscanf(arg, "%f", &s->weights[i]) != 1) {
> +            av_log(ctx, AV_LOG_ERROR, "Invalid syntax for weights[%d].\n", i);
> +            return AVERROR(EINVAL);
> +        }
>          s->wfactor += s->weights[i];
>          last = i;
>      }
> -- 
> 2.9.5
> 

-- 
Thanks,
Limin Wang