Michael Niedermayer:
> Fixes: CID1516994 Out-of-bounds access
> Fixes: CID1516996 Out-of-bounds access
> Fixes: CID1516999 Out-of-bounds access
>
> Sponsored-by: Sovereign Tech Fund
> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
> ---
> libavfilter/af_surround.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/libavfilter/af_surround.c b/libavfilter/af_surround.c
> index e37dddc3614..fab39a37ea9 100644
> --- a/libavfilter/af_surround.c
> +++ b/libavfilter/af_surround.c
> @@ -269,6 +269,9 @@ static int config_output(AVFilterLink *outlink)
>
> for (int ch = 0; ch < outlink->ch_layout.nb_channels; ch++) {
> float iscale = 1.f;
> + const int chan =
> av_channel_layout_channel_from_index(&s->out_ch_layout, ch);
> + if (chan >= FF_ARRAY_ELEMS(sc_map))
> + return AVERROR_PATCHWELCOME;
>
> ret = av_tx_init(&s->irdft[ch], &s->itx_fn, AV_TX_FLOAT_RDFT,
> 1, s->win_size, &iscale, 0);
Can this happen?
- Andreas
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