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: 5, Insightful) by Runaway1956 on Monday September 07 2015, @08:59AM
"We don't like to be plagiarized, so we're not giving our stuff away anymore. It's to expensive to defend our trademark and copyright, so we're changing the rules of the game."
I kinda think these guys have an inflated sense of their own importance. Personally, I've never used their products. I guess I can probably survive the rest of my life without their product.
(Score: 2, Informative) by Anonymous Coward on Monday September 07 2015, @10:41AM
"several very large companies in the embedded Linux world who have gone beyond simply taking advantage of our work. Not only has the entire embedded industry as a whole not contributed a single dime toward our continued development and maintenance (despite our work being critical to the security of the millions of devices using our code: streaming media players, credit card processing systems, etc), the companies we've identified have actively violated the GPL and even our trademark. These transgressions have continued despite their awareness and our legal action."