From patchwork Fri Feb 7 01:00:15 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kees Cook X-Patchwork-Id: 863726 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 A2AD913C9A3; Fri, 7 Feb 2025 01:00:23 +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=1738890023; cv=none; b=tY+mEuCqnnjnMdcj0WB/rpeJ5bFZW5JDy77HV+kr+zcFmym40Ovu7T7eQ2/1cbW4Di+DvqQqVqyO4DKAq3mTmnBoXFRpZHA4z2oFUwnaUI0McO83e8PaSw5YCQQ7kXoZPxUPvJZTq2asbDRvl3QZnf1t9+oGf/C6l0NEkiajdc4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738890023; c=relaxed/simple; bh=Opu1xXyyZ3aCe64Oqm1K1/bSvXQOECiF/s4lP93IAgM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Kiy2EQfA+3hnvzVpx/FJQ4id/5Z2g6VOGC1xlQOcihj5+wlpT3sJj2jXYyFjtGlB7HuOj7KIl5zir3uKQ34A/3Nu1CAT9qWuZZJQFwZRCHks98yX982fkU+11tHSb5+8KCMKZhbKdzpL6y/0agp5URd4MX2FP4VVoQy8HVUlHpk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=l5T51yNs; 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="l5T51yNs" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 32F3CC4CEF4; Fri, 7 Feb 2025 01:00:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1738890023; bh=Opu1xXyyZ3aCe64Oqm1K1/bSvXQOECiF/s4lP93IAgM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=l5T51yNscCYGt1Edn/A2clAER9RG9za+q2NWF0ds3FvOGP3Gm64us8UWo6wdz5gRj QwyU/+MHcPG0QHTbSwqSKxEIz91aellUc/HQGKfxhSvse7LXa3QuCM+aq+3osYHNcI S4y2Efpcd62r099O53jJ/nt9YhyM0vIKuUppXrqDuLz2CUCQUJTg1ii7DaabB0t/z6 vRYjzcLLdKRdILI79jwnfg5KvR8kqmOaxDYQObBEGZUVOtstXzPO2t6pQaez3tJDYw PPy2hPh0bWu29g5djjfrJBXi5oBTFPV73BsPJ2RhAmDbh6UWMvsZZgiSGk4SoHUAnP XkcJPHZjzZEjg== From: Kees Cook To: Andy Shevchenko Cc: Kees Cook , "Kirill A. Shutemov" , Dave Hansen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" , linux-coco@lists.linux.dev, Sathya Prakash , Sreekanth Reddy , Suganath Prabu Subramani , Kashyap Desai , Sumit Saxena , "James E.J. Bottomley" , "Martin K. Petersen" , Nilesh Javali , Andrew Morton , Alexey Dobriyan , Sven Eckelmann , Tadeusz Struk , kernel test robot , Erick Archer , Dmitry Antipov , Ryusuke Konishi , Luc Van Oostenryck , linux-kernel@vger.kernel.org, MPT-FusionLinux.pdl@broadcom.com, linux-scsi@vger.kernel.org, mpi3mr-linuxdrv.pdl@broadcom.com, GR-QLogic-Storage-Upstream@marvell.com, linux-hardening@vger.kernel.org, linux-nilfs@vger.kernel.org Subject: [PATCH 06/10] x86/tdx: Mark message.str as nonstring Date: Thu, 6 Feb 2025 17:00:15 -0800 Message-Id: <20250207010022.749952-6-kees@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250207005832.work.324-kees@kernel.org> References: <20250207005832.work.324-kees@kernel.org> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1065; i=kees@kernel.org; h=from:subject; bh=Opu1xXyyZ3aCe64Oqm1K1/bSvXQOECiF/s4lP93IAgM=; b=owGbwMvMwCVmps19z/KJym7G02pJDOlLoxVb/a45ye1N3nZuqsmMqdt3iX/LT7mgOIuZk9miY tKcyQynO0pZGMS4GGTFFFmC7NzjXDzetoe7z1WEmcPKBDKEgYtTACbCoMDwV+aBrT9ffG/FQZ6r uj1PbPwD7nH58IRq8pqwzop7MbOHgZFh6sOyGdatOv9PRHA8uLy6X+Rxw6H7l6a1iEf+kXrNbfm MEwA= X-Developer-Key: i=kees@kernel.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 In preparation for strtomem*() checking that its destination is a nonstring, annotate message.str accordingly. Signed-off-by: Kees Cook Acked-by: Kirill A. Shutemov --- Cc: "Kirill A. Shutemov" Cc: Dave Hansen Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: x86@kernel.org Cc: "H. Peter Anvin" Cc: linux-coco@lists.linux.dev --- arch/x86/coco/tdx/tdx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/coco/tdx/tdx.c b/arch/x86/coco/tdx/tdx.c index 0d9b090b4880..977ab1ffa3fe 100644 --- a/arch/x86/coco/tdx/tdx.c +++ b/arch/x86/coco/tdx/tdx.c @@ -170,7 +170,7 @@ static void __noreturn tdx_panic(const char *msg) /* Define register order according to the GHCI */ struct { u64 r14, r15, rbx, rdi, rsi, r8, r9, rdx; }; - char str[64]; + char str[64] __nonstring; } message; /* VMM assumes '\0' in byte 65, if the message took all 64 bytes */