selinux: add proper NULL termination to the secclass_map permissions
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.37 by commit 4c0ddc8712d9cd26459091c9f0c9e1a9f64815dc, it was introduced in version v4.15 by commit ec27c3568a34c7fe5fcf4ac0a354eda77687f7eb. For more details please see the references link.