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 B0AB5229B2B; Mon, 31 Mar 2025 14:36:48 +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=1743431808; cv=none; b=gg+yLmdO2Ae585ug4d4BT+I/9th8mRjLotP3skrEg2UKI+8ekCLbLSRHoSxT8lYmLdsLPe/jvqIDw+gabyQ9jqk30undQ2M7y9lPdWegMH7O4of7bLxfU8TTQIG9gHM2htBlpypzsAHUaSDzeVl9pMGUx8lJcwpZ0HCpX4BR11U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743431808; c=relaxed/simple; bh=xaEMZxbQp1Qr9ivAjB59KF4a/0OwWMSbOUS1BmmeD7w=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=NKdKxDJsENGnJLkYEmzULb4kXYl6EKnDfPfyC07ZdycESZiUKZ3KJ81ja9kFGY76wE6eRfit8QoJcJO3XP8yxNVppUAUWFASkNBNrEoBX9ccb1A7z6tXTcUqVU2yHsbBVVcgMmwTJuJGJdCvhXtBrb3myW44VEEwHcsfFjXm1Z0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=eN1eq0Yt; 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="eN1eq0Yt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 95D72C4CEEE; Mon, 31 Mar 2025 14:36:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1743431808; bh=xaEMZxbQp1Qr9ivAjB59KF4a/0OwWMSbOUS1BmmeD7w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eN1eq0YtD4BVRafaWoALnEDXnSwnTuH7VOLwWEq/b4QMqGVUQNp48de4M0d4s/5Xb EzSeGLaNg0fEdSTB8xE2rldw9pzhUcYVAyq7Y7RRiug4SBU5+lJ2qYOb4NLCUeV6e6 2DckbF+gqjk47QZYDAeHo2mQeG5NUH8UI1pMV3UG96FYRom0EvsN7dfBw4eNh9syFb cjVBMfuYP8Itt0GQd2mdU69TprsqI+xtQLXS7vrwPGxnvUqTDG4wx66sjkG7AHtfZg incyNnNjWco0DVUQMYl1OYqbvqZP0Y216SF+zqx9BDC1PrJThHLyOItk2g7lWo1xdC Aps8Cd/NJeO9Q== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Kees Cook , Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko , xen-devel@lists.xenproject.org, Sasha Levin Subject: [PATCH AUTOSEL 6.1 5/6] xen/mcelog: Add __nonstring annotations for unterminated strings Date: Mon, 31 Mar 2025 10:36:31 -0400 Message-Id: <20250331143634.1686409-5-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250331143634.1686409-1-sashal@kernel.org> References: <20250331143634.1686409-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.1.132 Content-Transfer-Encoding: 8bit From: Kees Cook [ Upstream commit 1c3dfc7c6b0f551fdca3f7c1f1e4c73be8adb17d ] When a character array without a terminating NUL character has a static initializer, GCC 15's -Wunterminated-string-initialization will only warn if the array lacks the "nonstring" attribute[1]. Mark the arrays with __nonstring to and correctly identify the char array as "not a C string" and thereby eliminate the warning. Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117178 [1] Cc: Juergen Gross Cc: Stefano Stabellini Cc: Oleksandr Tyshchenko Cc: xen-devel@lists.xenproject.org Signed-off-by: Kees Cook Acked-by: Juergen Gross Message-ID: <20250310222234.work.473-kees@kernel.org> Signed-off-by: Juergen Gross Signed-off-by: Sasha Levin --- include/xen/interface/xen-mca.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/xen/interface/xen-mca.h b/include/xen/interface/xen-mca.h index 464aa6b3a5f92..1c9afbe8cc260 100644 --- a/include/xen/interface/xen-mca.h +++ b/include/xen/interface/xen-mca.h @@ -372,7 +372,7 @@ struct xen_mce { #define XEN_MCE_LOG_LEN 32 struct xen_mce_log { - char signature[12]; /* "MACHINECHECK" */ + char signature[12] __nonstring; /* "MACHINECHECK" */ unsigned len; /* = XEN_MCE_LOG_LEN */ unsigned next; unsigned flags; -- 2.39.5