linked_list_allocator vulnerable to out-of-bound writes on `Heap` initialization and `Heap::extend`
What kind of vulnerability is it? Who is impacted? This vulnerability impacts all the initialization functions on the Heap and LockedHeap types, including Heap::new, Heap::init, Heap::init_from_slice, and LockedHeap::new. It also affects multiple uses of the Heap::extend method.