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From: Kees Cook <kees@kernel.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: "Kees Cook" <kees@kernel.org>,
	"Dr. David Alan Gilbert" <linux@treblig.org>,
	"Mark Brown" <broonie@kernel.org>,
	WangYuli <wangyuli@uniontech.com>,
	"Mickaël Salaün" <mic@digikod.net>,
	"Günther Noack" <gnoack@google.com>,
	"Bill Wendling" <morbo@google.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Nathan Chancellor" <nathan@kernel.org>,
	"Nick Desaulniers" <nick.desaulniers+lkml@gmail.com>,
	"Justin Stitt" <justinstitt@google.com>,
	"Petr Mladek" <pmladek@suse.com>,
	"David Gow" <davidgow@google.com>, "Rae Moar" <rmoar@google.com>,
	"Tamir Duberstein" <tamird@gmail.com>,
	"Diego Vieira" <diego.daniel.professional@gmail.com>,
	"Luis Chamberlain" <mcgrof@kernel.org>,
	"Gustavo A. R. Silva" <gustavoars@kernel.org>,
	"Paul Moore" <paul@paul-moore.com>,
	"James Morris" <jmorris@namei.org>,
	"Serge E. Hallyn" <serge@hallyn.com>,
	linux-kernel@vger.kernel.org, llvm@lists.linux.dev,
	linux-hardening@vger.kernel.org,
	linux-security-module@vger.kernel.org
Subject: [PATCH 3/3] Revert "hardening: Disable GCC randstruct for COMPILE_TEST"
Date: Sat, 26 Apr 2025 18:38:35 -0700	[thread overview]
Message-ID: <20250427013836.877214-3-kees@kernel.org> (raw)
In-Reply-To: <20250427013604.work.926-kees@kernel.org>

This reverts commit f5c68a4e84f9feca3be578199ec648b676db2030.

It is again possible to build "allmodconfig" with the randstruct GCC
plugin, so enable it for COMPILE_TEST to catch future bugs.

Signed-off-by: Kees Cook <kees@kernel.org>
---
 security/Kconfig.hardening | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/Kconfig.hardening b/security/Kconfig.hardening
index 3fe9d7b945c4..c17366ce8224 100644
--- a/security/Kconfig.hardening
+++ b/security/Kconfig.hardening
@@ -344,7 +344,7 @@ config CC_HAS_RANDSTRUCT
 
 choice
 	prompt "Randomize layout of sensitive kernel structures"
-	default RANDSTRUCT_FULL if COMPILE_TEST && CC_HAS_RANDSTRUCT
+	default RANDSTRUCT_FULL if COMPILE_TEST && (GCC_PLUGINS || CC_HAS_RANDSTRUCT)
 	default RANDSTRUCT_NONE
 	help
 	  If you enable this, the layouts of structures that are entirely
-- 
2.34.1


  parent reply	other threads:[~2025-04-27  1:38 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-27  1:38 [PATCH 0/3] randstruct: gcc-plugin: Remove bogus void member Kees Cook
2025-04-27  1:38 ` [PATCH 1/3] " Kees Cook
2025-04-27  1:38 ` [PATCH 2/3] lib/tests: Add randstruct KUnit test Kees Cook
2025-04-27  3:47   ` kernel test robot
2025-04-27  3:47   ` kernel test robot
2025-04-30 18:56     ` Kees Cook
2025-04-27  6:04   ` kernel test robot
2025-04-29  7:44   ` David Gow
2025-04-30 18:56     ` Kees Cook
2025-04-27  1:38 ` Kees Cook [this message]
2025-05-30  0:06   ` [PATCH 3/3] Revert "hardening: Disable GCC randstruct for COMPILE_TEST" Thiago Jung Bauermann
2025-05-30  5:12     ` Kees Cook
2025-05-30 19:09       ` Nathan Chancellor
2025-05-30 19:37         ` Kees Cook
2025-05-30 22:31         ` Kees Cook
2025-05-20 15:18 ` [PATCH 0/3] randstruct: gcc-plugin: Remove bogus void member Mickaël Salaün
2025-05-20 16:14   ` Kees Cook

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