CVE-2024-10041: fix possibility of leakage of secret information
stored in memory
CVE-2025-6020: take the vendor's fix and carry the parts of ours it
omits: upstream 976c2007, namespace.init path-safety flags, helper fd
sanitizing
CVE-2024-22365 is now fixed by the vendor's pam_namespace rewrite, which
replaces protect_dir() with secure_opendir(); the TuxCare duplicate is dropped