[neophiite]

That's the business model of grsecurity (selling security patches for the linux kernel). They have an additional clause that if you re-sell/re-release the patches, you lose access to future patches. It's controversial.

[dwohnitmok]

grsecurity's policy is such a fascinating end-run against the usual redistribution freedom associated with open source.

"Sure you can redistribute the software. We'll just cut you off if you do."

But suing Bruce Perens for saying that this is a legal risk is a pretty bad look for grsecurity...

https://www.theregister.com/2020/03/27/grsecurity_bruce_pere...