Grsecurity® is an extensive security enhancement to the Linux kernel that defends against a wide range of security threats through intelligent access control, memory corruption-based exploit prevention, and a host of other system hardening that generally require no configuration. It has been actively developed and maintained for the past 14 years. Commercial support for grsecurity is available through Open Source Security, Inc.
In a big red block at the top of their home page is the following warning:
Important Notice Regarding Public Availability of Stable Patches
Due to continued violations by several companies in the embedded industry of grsecurity®'s trademark and registered copyrights, effective September 9th 2015 stable patches of grsecurity will be permanently unavailable to the general public. For more information, read the full announcement.
And I thought GRSecurity was based on the GPL'd work called "Linux". Guess I was wrong.
(Score: -1, Troll) by Anonymous Coward on Monday September 07 2015, @10:42AM
The GPL isn't just commercial cancer, it's blatantly communist. Programmers are supposed to work for the government and be paid through taxation. We joke about the Microsoft Tax, yet such a tax is exactly what Stallman proposed in the GNU Manifesto.
All sorts of development can be funded with a Software Tax:
Suppose everyone who buys a computer has to pay x percent of the price as a software tax. The government gives this to an agency like the NSF to spend on software development.
The only differences are Microsoft isn't a government agency and Microsoft rarely shares source code.