Re: [PATCH] x86/mm/init_32: Don't print out kernel memory layout if KASLR

From: Kees Cook
Date: Sat Feb 29 2020 - 18:51:54 EST


Arvind Sankar said:
> For security, only show the virtual kernel memory layout if KASLR is
> disabled.

These have been entirely removed on other architectures, so let's
just do the same for ia32 and remove it unconditionally.

071929dbdd86 ("arm64: Stop printing the virtual memory layout")
1c31d4e96b8c ("ARM: 8820/1: mm: Stop printing the virtual memory layout")
31833332f798 ("m68k/mm: Stop printing the virtual memory layout")
fd8d0ca25631 ("parisc: Hide virtual kernel memory layout")
adb1fe9ae2ee ("mm/page_alloc: Remove kernel address exposure in free_reserved_area()")

-Kees

--
Kees Cook