From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7B82D26A1B1; Tue, 22 Apr 2025 02:18:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745288320; cv=none; b=dZAbv2bf34AX1TD4me01hFwd4aP+nHRCWpfrd1KpKdfNEj5ZosT9TgXQ6Ww0UqOMM44Af6JLzXm8mOtnkqCkjayZgtZOAL21D//46xLXupnl1VQhJl3siChnC5nA8mvbx0zkQ75dthtSLmxWWq5TJx2WlNYTF5Z5rXt33Ls53ss= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745288320; c=relaxed/simple; bh=EiBywMglqTtZn0m2XECVj77kVL4VtMf5fxBX/VdScno=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=TNPVKcMRC5CYs2zOuzKjpDK6U80HgdKAoQGu8u9PUnUVo2ITbazS4jJfH1LA1R7dkNKT1llT62HCuQtvnp/VmZXCCqbJKcevM/EqZDe9oC+7mtSOTp/riekLnRlzqwuJPAepzSZg5krhPWyuxlty8KmdagRsgLpHvaTSA9tJJkU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WIUlAawY; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WIUlAawY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0EC14C4CEEF; Tue, 22 Apr 2025 02:18:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745288320; bh=EiBywMglqTtZn0m2XECVj77kVL4VtMf5fxBX/VdScno=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WIUlAawYaOcDR3z8p8NVLjKENJcRcJND2RgYVr5tTS8nuP8nMEpMWKvgZblVGrAAt PWnRrVMDzSDU6KzJvMfV//0KSW9esb8sI20DcALVO0uiYC6Le5p7CsgvOm0Wx84hdH EBpYD4vFlHCtLG2QZGubbs2Jlxq5LWLw3n1vfkRDR08A7ciRysYwi/Wof397rhbfep PI30TKOa7x2F3GCxeUN08ga4dRZd4Nix5jcEVjwoEVrMa25BBRkmo9MzoWz9qulC3M pFpVltWzUMv1y+CXGESo2OKIPVm3UKUNL7TLSsuYRy+7wEldJ8oMlrnXqezih+KyBv v8VAezwt1yHyg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Kees Cook , Mark Brown , Arnd Bergmann , Sasha Levin , paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, mic@digikod.net, linux-hardening@vger.kernel.org, linux-security-module@vger.kernel.org Subject: [PATCH AUTOSEL 6.1 08/12] hardening: Disable GCC randstruct for COMPILE_TEST Date: Mon, 21 Apr 2025 22:18:22 -0400 Message-Id: <20250422021826.1941778-8-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250422021826.1941778-1-sashal@kernel.org> References: <20250422021826.1941778-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.1.134 Content-Transfer-Encoding: 8bit From: Kees Cook [ Upstream commit f5c68a4e84f9feca3be578199ec648b676db2030 ] There is a GCC crash bug in the randstruct for latest GCC versions that is being tickled by landlock[1]. Temporarily disable GCC randstruct for COMPILE_TEST builds to unbreak CI systems for the coming -rc2. This can be restored once the bug is fixed. Suggested-by: Mark Brown Link: https://lore.kernel.org/all/20250407-kbuild-disable-gcc-plugins-v1-1-5d46ae583f5e@kernel.org/ [1] Acked-by: Mark Brown Acked-by: Arnd Bergmann Link: https://lore.kernel.org/r/20250409151154.work.872-kees@kernel.org Signed-off-by: Kees Cook Signed-off-by: Sasha Levin --- security/Kconfig.hardening | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/security/Kconfig.hardening b/security/Kconfig.hardening index 0f295961e7736..12e7e836a3f12 100644 --- a/security/Kconfig.hardening +++ b/security/Kconfig.hardening @@ -287,7 +287,7 @@ config CC_HAS_RANDSTRUCT choice prompt "Randomize layout of sensitive kernel structures" - default RANDSTRUCT_FULL if COMPILE_TEST && (GCC_PLUGINS || CC_HAS_RANDSTRUCT) + default RANDSTRUCT_FULL if COMPILE_TEST && CC_HAS_RANDSTRUCT default RANDSTRUCT_NONE help If you enable this, the layouts of structures that are entirely -- 2.39.5