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 BE1068BEA; Sat, 14 Dec 2024 00:47:27 +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=1734137247; cv=none; b=u/sqdGJzc7LEjwkbQW1F2WleG4HULDmLQu1YuXLDgmXEoM2rrHybsj1qYWrPo4RmGwheSz2c0hzE784/3c81uxKLBI989c+QD2IFtB0t2otunHtnku8q5xfKPoweW7LhY6QQn6NHZfno4BzIH0D6LzRU5fSYsLCBoDhst7xLwZ4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734137247; c=relaxed/simple; bh=f/cGxHEBgEAswVErS6yOfLz3KX5La9tpLLWKDmDDBTA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=msD8ZEnF5afXDKfbskRsvV4JWDpnUAQ4hLyoJl1jD/RuL28wMLsIKIXr7CEKuBkXHdx7MLpuuA1G+yRQhJU8xkXFP1NOHFnj6Iot990nrTr5cBYU+nPBI4Q0P5TMdZjpw9g/vUZgOxoPFWX54biemG5ehGYKqMkUwRGYelNQI3Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OvQl4Iaj; 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="OvQl4Iaj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4B503C4CED0; Sat, 14 Dec 2024 00:47:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734137247; bh=f/cGxHEBgEAswVErS6yOfLz3KX5La9tpLLWKDmDDBTA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=OvQl4IajUd1IvkCmYAOLtCSL5J5lYUk4QKVX/Wxu8h2XzhdvJdpu/we1XRLtWstFx dHPv7+cwzDS2BwZw/wbGAEzHx3vlZGKVBbtGzQK5dTXbHshhCOz0f+0HggLTQG8X3T rk212XIk+ss4aVU/cgUIrv0TBralW/+fOtcxN0psolDcZbCvUdf9PHcsGpMSM8GgGS NRxytRh2imu0ecmpFm7rTkkrX6cSKh8yAzO4zf9Ir7emM8/V/YQCXcwwb7Mu3jZXj7 Ezv2Dx5fUegHQEcIOiCQqBWAcWql6RYI6LI+esS0U5DBluCM1mnWaAyblVoOW8WS9M 7GBuyE2m164Ww== Date: Fri, 13 Dec 2024 16:47:23 -0800 From: Kees Cook To: Nilay Shroff Cc: Nathan Chancellor , Thomas =?iso-8859-1?Q?Wei=DFschuh?= , Yury Norov , Qing Zhao , linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org, "gjoyce@linux.ibm.com" Subject: Re: [PATCH] fortify: Hide run-time copy size from value range tracking Message-ID: <202412131646.54417C4E6@keescook> References: <20241213020929.work.498-kees@kernel.org> <3fa35755-f822-4a54-b8fb-4fdc16579c2f@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3fa35755-f822-4a54-b8fb-4fdc16579c2f@linux.ibm.com> On Fri, Dec 13, 2024 at 02:49:20PM +0530, Nilay Shroff wrote: > ./include/linux/fortify-string.h:620:63: error: void value not ignored as it ought to be Whoops! Thanks, I had only spot-checked padata.o :( I will fix this up and send a v2. -- Kees Cook