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 BA0321531F0 for ; Wed, 18 Dec 2024 05:13:32 +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=1734498812; cv=none; b=LsD3CW1hb/5LIvoWwEUTrRKqVDQRL4UCuzzJDk0QQYwjsRgN/f9eiM09tzV5gfRf+woSeuZ6CXFnevT7g7OyrxZH4Sv/mZMPkV/mN1oOir3v4jFzACrOoOjxAnR0nMHKXL8r5E1qW8dOtXVgU2jD5aiINgaN5OVNSDbyXdrQaxg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734498812; c=relaxed/simple; bh=VPTtFnOKIaVkSJH4d+mJXyyCMDm4PV2Y6+2mcEZO76E=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=gZELBqq/FsKw0MKE6oiWWlHY2VF8oU1INnIvcIOILMZ6hvLT2/b82FHj5sHDJo77ggVUOdDD+sasV96Ho6hfJK6H51XJ8YRN/BRsm6o7H1uPaQ259Z0acWLmhVaeFHetXwlLu23ECKaFTWdj5mz1ukLb2sPaXsN9xypxMLAXuLg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=P+EsTW84; 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="P+EsTW84" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2A4EBC4CED0; Wed, 18 Dec 2024 05:13:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734498812; bh=VPTtFnOKIaVkSJH4d+mJXyyCMDm4PV2Y6+2mcEZO76E=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=P+EsTW84x8keIwUTvkRWbYosyLbTo2I6umG0mVCEyDCeegk2KQjQyHtZQ5oRJnCgC yNChtyIr674JyBKPoJLDWldDB/JdJIF8/xB47vAIPHom3J84T5GThkEvHsFZ4Hjypu 1VcI5yKbK2uR84tBs9yULm2AzxBuYopTCT5V6Bwp0yFQheF7v6iDaO7wkzApOXScgX tLgEDapvz5RnDH8MTiauHNSr5eqbVgxisHp1FGdWFzpOX5XUyBGrTC0Frrzt4g44FB PkcWEWKdmOeMWtY2aKQvIPl0j1H2btJPIHtSNdxp0QtQ7zDPizKXLPL0j4dcGXfaqG 76ewPadvNMJKQ== Date: Tue, 17 Dec 2024 21:13:29 -0800 From: Kees Cook To: Hajime Tazaki Cc: linux-um@lists.infradead.org, ricarkol@google.com, Liam.Howlett@oracle.com, Eric Biederman , Alexander Viro , Christian Brauner , Jan Kara , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH v5 02/13] x86/um: nommu: elf loader for fdpic Message-ID: <202412172113.21E002F0@keescook> References: Precedence: bulk X-Mailing-List: linux-fsdevel@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: On Thu, Dec 12, 2024 at 07:12:09PM +0900, Hajime Tazaki wrote: > As UML supports CONFIG_MMU=n case, it has to use an alternate ELF > loader, FDPIC ELF loader. In this commit, we added necessary > definitions in the arch, as UML has not been used so far. It also > updates Kconfig file to use BINFMT_ELF_FDPIC under !MMU environment. > > Cc: Eric Biederman > Cc: Kees Cook > Cc: Alexander Viro > Cc: Christian Brauner > Cc: Jan Kara > Cc: linux-mm@kvack.org > Cc: linux-fsdevel@vger.kernel.org > Signed-off-by: Hajime Tazaki Acked-by: Kees Cook -- Kees Cook