static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
{
    AVPacket pkt;
    AVStream *st;
    MOVStreamContext *sc;
    enum AVCodecID id;
    int ret;

    switch (type) {
    case 0xd:  id = AV_CODEC_ID_MJPEG; break;
    case 0xe:  id = AV_CODEC_ID_PNG;   break;
    case 0x1b: id = AV_CODEC_ID_BMP;   break;
    default:
        av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
        avio_skip(pb, len);
        return 0;
    }

    st = avformat_new_stream(c->fc, NULL);
    if (!st)
        return AVERROR(ENOMEM);
    sc = av_mallocz(sizeof(*sc));
    if (!sc)
        return AVERROR(ENOMEM);
    st->priv_data = sc;

    ret = av_get_packet(pb, &pkt, len);
    if (ret < 0)
        return ret;

    if (pkt.size >= 8 && id != AV_CODEC_ID_BMP) {
        if (AV_RB64(pkt.data) == 0x89504e470d0a1a0a) {
            id = AV_CODEC_ID_PNG;
        } else {
            id = AV_CODEC_ID_MJPEG;
        }
    }

    st->disposition              |= AV_DISPOSITION_ATTACHED_PIC;

    st->attached_pic              = pkt;
    st->attached_pic.stream_index = st->index;
    st->attached_pic.flags       |= AV_PKT_FLAG_KEY;

    st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
    st->codecpar->codec_id   = id;

    return 0;
}

The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.