New Linux kernel "lockdown" module to limit high-privileged users -- even root -- from tampering with some kernel functionality.

The Linux kernel mailing list (LKML) has returned to the oft-discussed topic of binary kernel modules. Considered by some to be a violation of the open source license used by the Linux kernel ...

In January 2019, senior kernel developer Greg Kroah-Hartman fierily defended a Linux kernel commit which disabled exporting certain kernel symbols to non-GPL loadable kernel modules.

Debugging Modules Once you have UML up and running, it's time to play. I've written a very simple kernel module for testing. It uses four devices, /dev/gentest [0-3]. The module treats each device a ...

Remote code execution flaw patched in Linux Kernel TIPC module The bug was spotted within a year of introduction to the codebase.

The kernel, however, including modules, has no such restriction. That can make debugging modules tricky because you can easily bring the system to its knees.

Once loaded, modules are identified by their base name only. A module may, and usually does, contain references to external symbols such as printk. How do these external references get resolved?

In this second excerpt, Abbott discusses kernel modules and device drivers. In Part 1 of this excerpt the author worked through an example of a simple kernel module. In this installment, Abbott ...

This article presents a cracker idea—the kernel module exploit—and shows how you can improve your system's security by using some of the same ideas and techniques. First, I will discuss the origin of ...