static int update_streams_from_subdemuxer(AVFormatContext *s, struct playlist *pls)
{
    int err;

    while (pls->n_main_streams < pls->ctx->nb_streams) {
        int ist_idx = pls->n_main_streams;
        AVStream *st = avformat_new_stream(s, NULL);
        AVStream *ist = pls->ctx->streams[ist_idx];

        if (!st)
            return AVERROR(ENOMEM);

        st->id = pls->index;
        dynarray_add(&pls->main_streams, &pls->n_main_streams, st);

        add_stream_to_programs(s, pls, st);

        err = set_stream_info_from_input_stream(st, pls, ist);
        if (err < 0)
            return err;
    }

    return 0;
}

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.