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Bruce Perens - Warning: Grsecurity: Potential contributory infringement risk for customers

Accepted submission by Anonymous Coward at 2017-07-05 21:43:02
Software

Bruce Perens warns of potential contributory infringement and breach of contract risk for customers of GRSecurity:
http://perens.com/blog/2017/06/28/warning-grsecurity-potential-contributory-infringement-risk-for-customers/ [perens.com]

Warning: Grsecurity: Potential contributory infringement and breach of contract risk for customers

It’s my strong opinion that your company should avoid the Grsecurity product sold at grsecurity.net because it presents a contributory infringement and breach of contract risk.

Grsecurity is a patch for the Linux kernel which, it is claimed, improves its security. It is a derivative work of the Linux kernel which touches the kernel internals in many different places. It is inseparable from Linux and can not work without it. it would fail a fair-use test (obviously, ask offline if you don’t understand). Because of its strongly derivative nature of the kernel, it must be under the GPL version 2 license, or a license compatible with the GPL and with terms no more restrictive than the GPL. Earlier versions were distributed under GPL version 2.

Currently, Grsecurity is a commercial product and is distributed only to paying customers. My understanding from several reliable sources is that customers are verbally or otherwise warned that if they redistribute the Grsecurity patch, as would be their right under the GPL, that they will be assessed a penalty: they will no longer be allowed to be customers, and will not be granted access to any further versions of Grsecurity. GPL version 2 section 6 explicitly prohibits the addition of terms such as this redistribution prohibition.

By operating under their policy of terminating customer relations upon distribution of their GPL-licensed software, Open Source Security Inc., the owner of Grsecurity, creates an expectation that the customer’s business will be damaged by losing access to support and later versions of the product, if that customer exercises their re-distribution right under the GPL license. This is tantamount to the addition of a term to the GPL prohibiting distribution or creating a penalty for distribution. GPL section 6 specifically prohibits any addition of terms. Thus, the GPL license, which allows Grsecurity to create its derivative work of the Linux kernel, terminates, and the copyright of the Linux Kernel is infringed. The contract from the Linux kernel developers to both Grsecurity and the customer which is inherent in the GPL is breached.

As a customer, it’s my opinion that you would be subject to both contributory infringement and breach of contract by employing this product in conjunction with the Linux kernel under the no-redistribution policy currently employed by Grsecurity.

I have previously endorsed a company that distributes enhanced versions of GPL software to paying customers, but that company operated differently (and in a way that I would recommend to Grsecurity). They did not make any threat to customers regarding redistribution. They publicly distributed their commercial version within 9 months to one year after its customer-only distribution.

This other company was essentially receiving payment from its customers for the work of making new GPL software available to the public after a relatively short delay, and thus they were doing a public benefit and were, IMO, in compliance with the letter of GPL though perhaps not the spirit. In contrast, Grsecurity does no redeeming public service, and does not allow any redistribution of their Linux derivative, in direct contravention to the GPL terms.

In the public interest, I am willing to discuss this issue with companies and their legal counsel, under NDA, without charge.

I am an intellectual property and technology specialist who advises attorneys, not an attorney. This is my opinion and is offered as advice to your attorney. Please show this to him or her. Under the law of most states, your attorney who is contracted to you is the only party who can provide you with legal advice.


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