On 11/6/22, Michael Niedermayer <mich...@niedermayer.cc> wrote:
> No testcase
>
> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
> ---
>  libavcodec/bonk.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/libavcodec/bonk.c b/libavcodec/bonk.c
> index 37ad7854b6..f2427de4f1 100644
> --- a/libavcodec/bonk.c
> +++ b/libavcodec/bonk.c
> @@ -180,6 +180,8 @@ static int intlist_read(BonkContext *s, int *buf, int
> entries, int base_2_part)
>              if (!dominant)
>                  n_zeros += steplet;
>
> +            if (step > INT32_MAX*8LL/9 + 1)
> +                return AVERROR_INVALIDDATA;
>              step += step / 8;
>          } else if (steplet > 0) {
>              int actual_run = read_uint_max(s, steplet - 1);
> --
> 2.17.1

probably ok

>
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