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authorKees Cook <keescook@chromium.org>2022-05-03 23:55:02 +0300
committerKees Cook <keescook@chromium.org>2022-05-08 11:33:07 +0300
commitbe2b34fa9be31c60a95989f984c9a5d40cd781b6 (patch)
treea1b5f247ac20de2866d52ea68930b47268366efc /security
parent613f4b3ed7902d1dbbc6ade6401e452a63dfbc21 (diff)
downloadlinux-be2b34fa9be31c60a95989f984c9a5d40cd781b6.tar.xz
randstruct: Move seed generation into scripts/basic/
To enable Clang randstruct support, move the structure layout randomization seed generation out of scripts/gcc-plugins/ into scripts/basic/ so it happens early enough that it can be used by either compiler implementation. The gcc-plugin still builds its own header file, but now does so from the common "randstruct.seed" file. Cc: linux-hardening@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220503205503.3054173-6-keescook@chromium.org
Diffstat (limited to 'security')
-rw-r--r--security/Kconfig.hardening9
1 files changed, 5 insertions, 4 deletions
diff --git a/security/Kconfig.hardening b/security/Kconfig.hardening
index 364e3f8c6eea..0277ba578779 100644
--- a/security/Kconfig.hardening
+++ b/security/Kconfig.hardening
@@ -284,10 +284,11 @@ choice
tools like Volatility against the system (unless the kernel
source tree isn't cleaned after kernel installation).
- The seed used for compilation is located at
- scripts/randomize_layout_seed.h. It remains after a "make clean"
- to allow for external modules to be compiled with the existing
- seed and will be removed by a "make mrproper" or "make distclean".
+ The seed used for compilation is in scripts/basic/randomize.seed.
+ It remains after a "make clean" to allow for external modules to
+ be compiled with the existing seed and will be removed by a
+ "make mrproper" or "make distclean". This file should not be made
+ public, or the structure layout can be determined.
config RANDSTRUCT_NONE
bool "Disable structure layout randomization"