Unsound usages of VecFromRawParts

[llooFlashooll]

Hi, I am scanning the scavenger in the latest version with my own static analyzer tool.

Unsafe conversion found at: src/miner.rs#L141

pub fn new(buffer_size: usize) -> Self {
    let pointer = aligned_alloc::aligned_alloc(buffer_size, page_size::get());
    let data: Vec<u8>;
    unsafe {
        data = Vec::from_raw_parts(pointer as *mut u8, buffer_size, buffer_size);
    }

This unsound implementation of Vec::from_raw_parts would create a dangling pointer issues if the pointer is dropped automatically or is empty. The 'mem::forget' function can be used to avoid the issue.

This would potentially cause undefined behaviors in Rust. If we further manipulate the problematic converted types, it would potentially lead to different consequences such as uaf or double free. I am reporting this issue for your attention.