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From: Arjan van de Ven <arjan@linux.intel.com>
To: Ard Biesheuvel <ardb@kernel.org>,
	Kristen Carlson Accardi <kristen@linux.intel.com>
Cc: Kees Cook <keescook@chromium.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	hpa@zytor.com, Jessica Yu <jeyu@kernel.org>,
	X86 ML <x86@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	kernel-hardening@lists.openwall.com, rick.p.edgecomb@intel.com
Subject: Re: [PATCH 9/9] module: Reorder functions
Date: Mon, 20 Apr 2020 06:37:17 -0700	[thread overview]
Message-ID: <cff1fa99-c692-d9f2-f077-60d630bb40bc@linux.intel.com> (raw)
In-Reply-To: <CAMj1kXGbh=0nC_6SGTWjKeDPdwBrEW0_vRbjDzWyqqjY_88S7Q@mail.gmail.com>

On 4/20/2020 5:01 AM, Ard Biesheuvel wrote:
> Is that the only prerequisite? I.e., is it sufficient for another
> architecture to add -ffunction-sections to the module CFLAGS to get
> this functionality? (assuming it defines CONFIG_FG_KASLR=y)

I suspect you also need/want at least normal KASLR enabled as
a "does it even make sense" common sense threshold

  reply	other threads:[~2020-04-20 13:37 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-15 21:04 [PATCH 0/9] Function Granular Kernel Address Space Layout Randomization Kristen Carlson Accardi
2020-04-15 21:04 ` [PATCH 1/9] objtool: do not assume order of parent/child functions Kristen Carlson Accardi
2020-04-22 22:17   ` Josh Poimboeuf
2020-04-15 21:04 ` [PATCH 2/9] x86: tools/relocs: Support >64K section headers Kristen Carlson Accardi
2020-04-15 21:04 ` [PATCH 3/9] x86/boot: Allow a "silent" kaslr random byte fetch Kristen Carlson Accardi
2020-04-15 21:04 ` [PATCH 4/9] x86: Makefile: Add build and config option for CONFIG_FG_KASLR Kristen Carlson Accardi
2020-04-15 21:04 ` [PATCH 5/9] x86: make sure _etext includes function sections Kristen Carlson Accardi
2020-04-15 21:04 ` [PATCH 6/9] x86/tools: Adding relative relocs for randomized functions Kristen Carlson Accardi
2020-04-15 21:04 ` [PATCH 7/9] x86: Add support for function granular KASLR Kristen Carlson Accardi
2020-04-16  0:14   ` kbuild test robot
2020-04-16  0:14     ` kbuild test robot
2020-05-15  5:55   ` Baoquan He
2020-04-15 21:04 ` [PATCH 8/9] kallsyms: hide layout Kristen Carlson Accardi
2020-04-20 11:58   ` Ard Biesheuvel
2020-04-20 11:58     ` Ard Biesheuvel
2020-04-20 17:46     ` Kristen Carlson Accardi
2020-04-20 17:46       ` Kristen Carlson Accardi
2020-04-15 21:04 ` [PATCH 9/9] module: Reorder functions Kristen Carlson Accardi
2020-04-20 12:01   ` Ard Biesheuvel
2020-04-20 12:01     ` Ard Biesheuvel
2020-04-20 13:37     ` Arjan van de Ven [this message]
2020-04-20 13:43       ` Ard Biesheuvel
2020-04-20 13:43         ` Ard Biesheuvel
2020-04-20 13:47         ` Arjan van de Ven
2020-04-20 17:56     ` Kristen Carlson Accardi
2020-04-20 17:56       ` Kristen Carlson Accardi
2020-04-20 17:59       ` Kristen Carlson Accardi
2020-04-20 17:59         ` Kristen Carlson Accardi
2020-04-22 16:22         ` Ard Biesheuvel
2020-04-22 16:22           ` Ard Biesheuvel
2020-04-22 18:02           ` Kristen Carlson Accardi
2020-04-22 18:02             ` Kristen Carlson Accardi
2020-04-20 17:48 ` [PATCH 0/9] Function Granular Kernel Address Space Layout Randomization Kees Cook

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