As many kernel developers and hackers have known for years, loadable/unloadable kernel modules (like user-space applications) are almost never bug-free. With the continuing use and development of ...

Modern CPUs can run in two modes: kernel mode and user mode. When a CPU runs in kernel mode, an extended set of instructions is allowed, as is free access to anywhere in memory and device registers.

Security modules watch the rest of the Linux system for intruders, but if they’re dynamically loadable, qui custodiet ipsos custodes? The ever-contentious Linux Security Modules (LSM) API is being ...