This interpretation could imply that any software running on a GPL OS that lacks memory protection would also be forced to be GPL. The GPL has exceptions for G

This interpretation could imply that any software running on a GPL OS that lacks memory protection would also be forced to be GPL. The GPL has exceptions for GPL programs using proprietary OS components, but does it have the reverse? It's easy enough to claim that a kernel module is more analogous to a program running on an OS than to a library linked into a program.