aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm64/Kconfig
diff options
context:
space:
mode:
authorLaura Abbott <labbott@redhat.com>2018-07-20 14:41:54 -0700
committerWill Deacon <will.deacon@arm.com>2018-07-26 11:36:34 +0100
commit0b3e336601b82c6afa0e9cf21db9cb8793e25399 (patch)
tree1ea6cdfc5d69f4ad5ad0e60ced11decc74ed0360 /arch/arm64/Kconfig
parentarm64: Add stack information to on_accessible_stack (diff)
downloadlinux-dev-0b3e336601b82c6afa0e9cf21db9cb8793e25399.tar.xz
linux-dev-0b3e336601b82c6afa0e9cf21db9cb8793e25399.zip
arm64: Add support for STACKLEAK gcc plugin
This adds support for the STACKLEAK gcc plugin to arm64 by implementing stackleak_check_alloca(), based heavily on the x86 version, and adding the two helpers used by the stackleak common code: current_top_of_stack() and on_thread_stack(). The stack erasure calls are made at syscall returns. Additionally, this disables the plugin in hypervisor and EFI stub code, which are out of scope for the protection. Acked-by: Alexander Popov <alex.popov@linux.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to '')
-rw-r--r--arch/arm64/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 27fd50e86dfe..1494d5cfd681 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -108,6 +108,7 @@ config ARM64
select HAVE_ARCH_MMAP_RND_BITS
select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT
select HAVE_ARCH_SECCOMP_FILTER
+ select HAVE_ARCH_STACKLEAK
select HAVE_ARCH_THREAD_STRUCT_WHITELIST
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE