CVE-2026-107446 [MEDIUM] – containerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overf

containerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overflow (and resultant out-of-bounds heap access) for index_bytes, if an untrusted overlaybd blob from a registry is used in a scenario with multiple overlaybd-backed containers.