Merge branch 'x86-syscall-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

Pull syscall updates from Ingo Molnar:
 "Improve the security of set_fs(): we now check the address limit on a
  number of key platforms (x86, arm, arm64) before returning to
  user-space - without adding overhead to the typical system call fast
  path"

* 'x86-syscall-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  arm64/syscalls: Check address limit on user-mode return
  arm/syscalls: Check address limit on user-mode return
  x86/syscalls: Check address limit on user-mode return

diff --cc arch/arm/include/asm/uaccess.h
Simple merge

diff --cc arch/arm/kernel/signal.c
Simple merge

diff --cc arch/arm64/include/asm/uaccess.h
Simple merge

diff --cc arch/arm64/kernel/signal.c
index 089c3747995dc40b726fbe9f53450ddb5c350f95,0f0279148bdc08a62f10f142c598b3ce9e144025..e3e3293d1123957d9529160f068f2cc07b69705e
--- 1/arch/arm64/kernel/signal.c
--- 2/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@@ -23,12 -22,10 +23,13 @@@
  #include <linux/signal.h>
  #include <linux/personality.h>
  #include <linux/freezer.h>
 +#include <linux/stddef.h>
  #include <linux/uaccess.h>
 +#include <linux/sizes.h>
 +#include <linux/string.h>
  #include <linux/tracehook.h>
  #include <linux/ratelimit.h>
+ #include <linux/syscalls.h>
  
  #include <asm/debug-monitors.h>
  #include <asm/elf.h>

diff --cc arch/x86/include/asm/uaccess.h
Simple merge

diff --cc include/linux/syscalls.h
Simple merge