So What If Linux Infringes On Microsoft IP?

Mr Men writes to mention a ZDNet blog entry by Adrian Kingsley-Hughes wondering aloud if maybe, just maybe, Microsoft isn't lying about having patents that are part of Linux. "Come on, no matter how much of a Linux fan you are, you have to admit that there's at least a chance that Linux does indeed infringe on Microsoft's patents. After all, Microsoft does hold a lot of patents and while Linux is open source and we can all take a look at the source code, only Microsoft has access to most of its source code so it isn't all that difficult for it to prove — to itself at any rate — that there are IP infringements contained in Linux. After all, before IBM handed over some 500 patents to the open source community, it's pretty clear that Linux was infringing some of them. Given that, why is it so hard to believe that the same isn't going on with Microsoft?" Even then, he goes on to say, so what if they do? It's not like they're going to go after us with a 'Linux tax.' Kingsley-Hughes imagines that, for the most part, Microsoft is just going to sit on this info and use it to form more and more profitable deals. Better than the alternative, I guess.

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Read the license

[msobkow]

From GPL v2:

2.b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License.

All direct or derived GPL source is subject to the GPL.

4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance.

If there are licensing problems with the software, you do not have permission to use or distribute it.

7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program.

If there are problems with IP conflicts, the GPL explicitly does not apply to the source code in question. That means NO ONE has the right to distribute that software except the AUTHOR/OWNER, and they must use a license other than the GPL to do so.