Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-04 04:02:26 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Kconfig: Make STRICT_DEVMEM default-y on x86 and arm64

Browse Source 
Distros have been shipping with CONFIG_STRICT_DEVMEM=y for years now. It
is probably time to flip this default for x86 and arm64.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Laura Abbott <labbott@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: kernel-hardening@lists.openwall.com
Link: http://lkml.kernel.org/r/20171201201000.GA44539@beast
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Kees Cook 2017-12-01 12:10:00 -08:00 committed by Ingo Molnar
parent 50c4c4e268
commit 0f7cda2b82
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/Kconfig.debug
View File

@ -1985,7 +1985,7 @@ config STRICT_DEVMEM
bool "Filter access to /dev/mem"
depends on MMU && DEVMEM
depends on ARCH_HAS_DEVMEM_IS_ALLOWED
default y if TILE || PPC
default y if TILE || PPC || X86 || ARM64
---help---
If this option is disabled, you allow userspace (root) access to all
of memory, including kernel and userspace memory. Accidental