static int asf_read_metadata(AVFormatContext *s, const char *title, uint16_t len,
                             unsigned char *ch, uint16_t buflen)
{
    AVIOContext *pb = s->pb;

    avio_get_str16le(pb, len, ch, buflen);
    if (ch[0]) {
        if (av_dict_set(&s->metadata, title, ch, 0) < 0)
            av_log(s, AV_LOG_WARNING, "av_dict_set failed.\n");
    }

    return 0;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.