Originally posted by robbieduncan
SCO claim (although in my personal opinion whithout any basis in reality) that some of their proprietary code was taken by IBM and added to the Linux kernal (under the GPL) improperly. The actual ownership of the various Unix source code versions is complicated and open to a certain amout of discussion (and the trademark is owned by the Open Group). To make things even muddier SCO were distributing the code they claim is their under the GPL in their version of Linux which may have forfieted their rights anyway.
All the code they have shown so-far is in the Linux kernel, but at the same time is not owned by SCO!