static int decode_tdlt(GetByteContext *gb, uint8_t *frame, int width, int height)
{
    const uint8_t *frame_end = frame + width * height;
    uint32_t segments = bytestream2_get_le32(gb);
    int skip, copy;

    while (segments--) {
        if (bytestream2_get_bytes_left(gb) < 2)
            return AVERROR_INVALIDDATA;
        copy = bytestream2_get_byteu(gb) * 2;
        skip = bytestream2_get_byteu(gb) * 2;
        if (frame_end - frame < copy + skip ||
            bytestream2_get_bytes_left(gb) < copy)
            return AVERROR_INVALIDDATA;
        frame += skip;
        bytestream2_get_buffer(gb, frame, copy);
        frame += copy;
    }

    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.