Top 5 Bugs from Fuel Attackathon 33519-2.rs

pub(crate) fn copy_from_slice_zero_fill<A: ToAddr, B: ToAddr>(
    memory: &mut Memory,
    owner: H160,
    src: &[u8],
    dst_addr: A,
    src_offset: usize,
    len: usize,
) -> Result<(), Error> {
    let range = memory.write(owner, dst_addr, len)?;

    let src_end = src_offset.saturating_add(range.len()).min(src.len());
    let data = src.get(src_offset..src_end).unwrap_or_default();

    range[..data.len()].copy_from_slice(data);
    range[data.len()..].fill(0);
}