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authorKees Cook <keescook@chromium.org>2016-07-13 02:19:48 +0300
committerKees Cook <keescook@chromium.org>2016-07-27 00:41:47 +0300
commit0f60a8efe4005ab5e65ce000724b04d4ca04a199 (patch)
treea71bc07c426721394f3156318b2220d8f6299c07 /arch/x86/Kconfig
parent7c15d9bb8231f998ae7dc0b72415f5215459f7fb (diff)
downloadlinux-0f60a8efe4005ab5e65ce000724b04d4ca04a199.tar.xz
mm: Implement stack frame object validation
This creates per-architecture function arch_within_stack_frames() that should validate if a given object is contained by a kernel stack frame. Initial implementation is on x86. This is based on code from PaX. Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d9a94da0c29f..a2865ddfc1ff 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -91,6 +91,7 @@ config X86
select HAVE_ARCH_SOFT_DIRTY if X86_64
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
+ select HAVE_ARCH_WITHIN_STACK_FRAMES
select HAVE_EBPF_JIT if X86_64
select HAVE_CC_STACKPROTECTOR
select HAVE_CMPXCHG_DOUBLE