[OS-BUILD PATCH] redhat/configs: Enable CONFIG_INIT_STACK_ALL_ZERO for RHEL

[Josh Poimboeuf (via Email Bridge)]

From: Josh Poimboeuf <jpoimboe(a)redhat.com&gt;

redhat/configs: Enable CONFIG_INIT_STACK_ALL_ZERO for RHEL

CONFIG_INIT_STACK_ALL_ZERO is a hardening feature which is "intended to
eliminate all classes of uninitialized stack variable exploits and
information exposures."

Recent internal benchmark testing has shown negligible performance
impact.

It's already enabled for Fedora.  Enable it for RHEL.

Signed-off-by: Josh Poimboeuf <jpoimboe(a)redhat.com&gt;

diff --git a/redhat/configs/fedora/generic/CONFIG_INIT_STACK_ALL_ZERO
b/redhat/configs/common/generic/CONFIG_INIT_STACK_ALL_ZERO
rename from redhat/configs/fedora/generic/CONFIG_INIT_STACK_ALL_ZERO
rename to redhat/configs/common/generic/CONFIG_INIT_STACK_ALL_ZERO
index blahblah..blahblah 100644
--- a/redhat/configs/fedora/generic/CONFIG_INIT_STACK_ALL_ZERO
+++ b/redhat/configs/common/generic/CONFIG_INIT_STACK_ALL_ZERO
diff --git a/redhat/configs/fedora/generic/CONFIG_INIT_STACK_NONE
b/redhat/configs/common/generic/CONFIG_INIT_STACK_NONE
rename from redhat/configs/fedora/generic/CONFIG_INIT_STACK_NONE
rename to redhat/configs/common/generic/CONFIG_INIT_STACK_NONE
index blahblah..blahblah 100644
--- a/redhat/configs/fedora/generic/CONFIG_INIT_STACK_NONE
+++ b/redhat/configs/common/generic/CONFIG_INIT_STACK_NONE
diff --git a/redhat/configs/rhel/generic/CONFIG_INIT_STACK_ALL_ZERO
b/redhat/configs/rhel/generic/CONFIG_INIT_STACK_ALL_ZERO
deleted file mode 100644
index blahblah..blahblah 0
--- a/redhat/configs/rhel/generic/CONFIG_INIT_STACK_ALL_ZERO
+++ /dev/null
@@ -1 +0,0 @@
-# CONFIG_INIT_STACK_ALL_ZERO is not set
diff --git a/redhat/configs/rhel/generic/CONFIG_INIT_STACK_NONE
b/redhat/configs/rhel/generic/CONFIG_INIT_STACK_NONE
deleted file mode 100644
index blahblah..blahblah 0
--- a/redhat/configs/rhel/generic/CONFIG_INIT_STACK_NONE
+++ /dev/null
@@ -1 +0,0 @@
-CONFIG_INIT_STACK_NONE=y

--
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2400