Messages in this thread |  | | Date | Mon, 7 Aug 2017 14:16:09 +0100 | From | Will Deacon <> | Subject | Re: [PATCH] arm64: correct modules range of kernel virtual memory layout |
| |
On Mon, Aug 07, 2017 at 07:04:46PM +0800, Miles Chen wrote: > The commit f80fb3a3d508 ("arm64: add support for kernel ASLR") > moved module virtual address to > [module_alloc_base, module_alloc_base + MODULES_VSIZE). > > Display module information of the virtual kernel > memory layout by using module_alloc_base. > > testing output: > 1) Current implementation: > Virtual kernel memory layout: > modules : 0xffffff8000000000 - 0xffffff8008000000 ( 128 MB) > 2) this patch + KASLR: > Virtual kernel memory layout: > modules : 0xffffff8000560000 - 0xffffff8008560000 ( 128 MB) > 3) this patch + KASLR and a dummy seed: > Virtual kernel memory layout: > modules : 0xffffffa7df637000 - 0xffffffa7e7637000 ( 128 MB) > > Signed-off-by: Miles Chen <miles.chen@mediatek.com> > --- > arch/arm64/mm/init.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-)
Does this mean the modules code in our pt dumper is busted (arch/arm64/mm/dump.c)? Also, what about KASAN, which uses these addresses too (in kasan_init)? Should we just remove MODULES_VADDR and MODULES_END altogether?
Will
|  |