Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> writes: > On Thu, Jun 22, 2017 at 04:52:51PM +1000, Michael Ellerman wrote: >> The SLB miss handler calls slb_allocate_realmode() in order to create an >> SLB entry for the faulting address. At the very start of that function >> we check that the faulting Effective Address (EA) is less than >> PGTABLE_RANGE (ignoring the region), ie. is it an address which could >> possibly fit in the virtual address space. ... >> --- >> arch/powerpc/mm/slb_low.S | 10 ++++++++++ >> 1 file changed, 10 insertions(+) >> >> Note this patch is not upstream. The bug fix was fixed differently in >> upstream prior to the bug being identified. > > Now applied to 4.4 and 3.18-stable kernels, thanks, Thanks. cheers