Merge tag 'hardening-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...

Pull kernel hardening updates from Kees Cook:

 - Add arm64 Shadow Call Stack support for GCC 12 (Dan Li)

 - Avoid memset with stack offset randomization under Clang (Marco
   Elver)

 - Clean up stackleak plugin to play nice with .noinstr (Kees Cook)

 - Check stack depth for greater usercopy hardening coverage (Kees Cook)

* tag 'hardening-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  arm64: Add gcc Shadow Call Stack support
  m68k: Implement "current_stack_pointer"
  xtensa: Implement "current_stack_pointer"
  usercopy: Check valid lifetime via stack depth
  stack: Constrain and fix stack offset randomization with Clang builds
  stack: Introduce CONFIG_RANDOMIZE_KSTACK_OFFSET
  gcc-plugins/stackleak: Ignore .noinstr.text and .entry.text
  gcc-plugins/stackleak: Exactly match strings instead of prefixes
  gcc-plugins/stackleak: Provide verbose mode

diff --cc arch/arm64/Kconfig
index a555f40,a6733b9..8c54de0
--- 1/arch/arm64/Kconfig
--- 2/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@@ -1257,7 -1236,10 +1258,7 @@@ config HW_PERF_EVENT
        def_bool y
        depends on ARM_PMU
  
- # Supported by clang >= 7.0
 -config ARCH_HAS_FILTER_PGPROT
 -      def_bool y
 -
+ # Supported by clang >= 7.0 or GCC >= 12.0.0
  config CC_HAVE_SHADOW_CALL_STACK
        def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
  

diff --cc arch/m68k/Kconfig
Simple merge

diff --cc arch/x86/Kconfig
Simple merge