CVE-2025-55159 slab allows out-of-bounds access in `get_disjoint_mut` due to incorrect bounds check

slab is a pre-allocated storage for a uniform data type. In version 0.4.10, the getdisjointmut method incorrectly checked if indices were within the slab's capacity instead of its length, allowing access to uninitialized memory. This could lead to undefined behavior or potential crashes. This has...