"John Johansen, a developer with commercial Ubuntu sponsor
Canonical, has submitted an updated version of the AppArmor
security framework to the Linux kernel developers for inspection.
Johansen writes that, like the SELinux and Tomoyo solutions already
integrated into the kernel, this fourth general posting of AppArmor
uses Linux Security Modules (LSM) to hook into the kernel. Some,
but not all of the characteristics criticised by the kernel
developers when AppArmor was posted last have reportedly been
corrected in the new posting..."