malloc and buffer overflow attacks

[forkit]

On Friday, 31 December 2021 at 00:13:56 UTC, Walter Bright wrote:
> While D offers buffer overflow detection, it does not protect 
> against buffer overflows resulting from an array size 
> calculation overflow:
>
>     T* p = cast(T*)malloc(len * T.sizeof);
>
> What if `len*T.sizeof` overflows? malloc() will succeed, but 
> the result will be too small for the data.
>

but the idea that code is only as safe as the functions it calls, 
is not a new idea...right?