On Thu, Dec 17, 2009 at 10:35:17AM -0800, Joe Buck wrote: > Besides, didn't I see a whole bunch of kernel security patches related > to null pointer dereferences lately? If page 0 can be mapped, you > suddenly won't get your trap.
Page 0 can not be mapped on ARM kernels since the late 1990s, and this protection is independent of the generic kernel. Milage may vary on other architectures, but that's not a concern here.
