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 A1494265CA8; Tue, 22 Apr 2025 02:18:17 +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=1745288297; cv=none; b=EnqUlkMNYOMPYyLTajmhLJn79gcPFLABmypW4bWNMwitlQMNCWb5aO2ieZU/z/CVhsf38Dq1mWzamEKWB/F67WLck5pHtyPO/v00J5JAyY83JjJd/RDhLQbfvUc4FRRoll8OMsLYmjIrouX5xNFSnf/XzcL8NVVCc9ijzvCRp1w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745288297; c=relaxed/simple; bh=/Y+EBwSCQzDGbUyJxbJPpMMbsba07Pgv+rdAzk/ck0U=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Pu5E4kV9uqmdEmlrXDD3F/OTEPEshIJRvxoEKlj4y8MByykf1fNJv1wnRNiUt5mD5xjj6U1uCDrmrLLbjdvi5CqxMjn1HUdmdQZLxJCx7sqDw3eENCaVghnZ5m+0OM+bcOflrrC5fnKOcTx0pzkJ8h3ZOvD9eFycFUqz6Pkdwr0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=sa1yEVJF; 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="sa1yEVJF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 35BDDC4CEF0; Tue, 22 Apr 2025 02:18:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745288297; bh=/Y+EBwSCQzDGbUyJxbJPpMMbsba07Pgv+rdAzk/ck0U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sa1yEVJFuzGjItcs1pPhFc29DACdHsYChrly6XhiH4rwfAMTuq+G1SbcXZ0VIgfrJ fxcEWhm+MwFDNM5aDADTmvMk/GPqoJMfMsCLIjzHLusPwMlDc71fsk47FuBW50BqG1 +45oFPYmYfoTxW56JTMOBtvEemTHAx5G/CyVKJqcoPhjTQ4YJ05WbBqA0Kz8APiqkO UM+JIwF102aMhr9YpRJq9DGrIJoOgbhasnRMMf6+/l7i0otqLyVzOyIlewrWOee9w1 jGVqKgnZzcYu/R2mWCFnuOR2qcTXX4W9slB+oB1m51us39F+aDW6WqKwqXNS27uxRj 8Mc+sKaLmIXdw== 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 6.6 10/15] hardening: Disable GCC randstruct for COMPILE_TEST Date: Mon, 21 Apr 2025 22:17:54 -0400 Message-Id: <20250422021759.1941570-10-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250422021759.1941570-1-sashal@kernel.org> References: <20250422021759.1941570-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.6.87 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 2cff851ebfd7e..f1ba84812ab22 100644 --- a/security/Kconfig.hardening +++ b/security/Kconfig.hardening @@ -310,7 +310,7 @@ 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