On 2/3/18, Nikolas Bowe <nbowe-at-google....@ffmpeg.org> wrote:
> Previously if ff_outlink_frame_wanted() returned 0 it could dereference a
> null pointer when trying to read nb_samples.
> ---
> libavfilter/af_join.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/libavfilter/af_join.c b/libavfilter/af_join.c
> index cf5131e8dc..4f86e13558 100644
> --- a/libavfilter/af_join.c
> +++ b/libavfilter/af_join.c
> @@ -485,6 +485,9 @@ static int activate(AVFilterContext *ctx)
> return 0;
> }
> }
> + if (!s->input_frames[0]) {
> + return 0;
> + }
> }
>
> nb_samples = s->input_frames[0]->nb_samples;
> --
> 2.16.0.rc1.238.g530d649a79-goog
>
> _______________________________________________
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> ffmpeg-devel@ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
lgtm
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