From: "PaX Team" <pageexec@freemail.hu>
To: David Brown <david.brown@linaro.org>, Kees Cook <keescook@chromium.org>
Cc: Russell King <linux@arm.linux.org.uk>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"kernel-hardening@lists.openwall.com"
<kernel-hardening@lists.openwall.com>,
Ingo Molnar <mingo@redhat.com>,
Andy Lutomirski <luto@amacapital.net>,
"H. Peter Anvin" <hpa@zytor.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Mathias Krause <minipli@googlemail.com>,
Thomas Gleixner <tglx@linutronix.de>,
"x86@kernel.org" <x86@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
Emese Revfy <re.emese@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-arch <linux-arch@vger.kernel.org>
Subject: Re: [PATCH] ARM: vdso: Mark vDSO code as read-only
Date: Thu, 18 Feb 2016 11:46:42 +0100 [thread overview]
Message-ID: <56C5A112.25195.35DDEA@pageexec.freemail.hu> (raw)
In-Reply-To: <CAGXu5jJmpq_2mmTLD0VbnY1SBF5b5Rr04HKWfD1LEaGxnztFdQ@mail.gmail.com>
On 17 Feb 2016 at 15:48, Kees Cook wrote:
> On Wed, Feb 17, 2016 at 3:43 PM, David Brown <david.brown@linaro.org> wrote:
> > Is there a possible future consideration to perhaps make .rodata read
> > only much earlier?
>
> Yeah, this will likely be a future improvement. Some architectures
> already mark .rodata before the mark_rodata_ro() call. Once we start
> to have more use of postinit-readonly, I suspect we'll see more
> clarification of when those things happen.
FYI, PaX had enforced early rodata on i386 during the 2.4 series (i.e.,
decade+ ago) but i abandoned it for 2.6 due to the maintenance burden
coupled with its low benefit...
prev parent reply other threads:[~2016-02-18 10:48 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-19 18:08 [PATCH v4 0/8] introduce post-init read-only memory Kees Cook
2016-01-19 18:08 ` [PATCH v4 1/8] asm-generic: consolidate mark_rodata_ro() Kees Cook
2016-01-19 18:08 ` [PATCH v4 2/8] lib: add "on" and "off" to strtobool Kees Cook
2016-01-20 2:09 ` Joe Perches
2016-01-22 23:29 ` Kees Cook
2016-01-19 18:08 ` [PATCH v4 3/8] param: convert some "on"/"off" users " Kees Cook
2016-01-27 21:11 ` [kernel-hardening] " David Brown
2016-01-27 21:19 ` Kees Cook
2016-01-28 0:09 ` [PATCH] arm64: make CONFIG_DEBUG_RODATA non-optional David Brown
2016-01-28 0:14 ` Kees Cook
2016-01-28 8:20 ` Ard Biesheuvel
2016-01-28 11:06 ` Mark Rutland
2016-01-28 14:06 ` Kees Cook
2016-01-28 14:59 ` Mark Rutland
2016-01-28 15:17 ` Kees Cook
2016-01-19 18:08 ` [PATCH v4 4/8] init: create cmdline param to disable readonly Kees Cook
2016-01-19 18:08 ` [PATCH v4 5/8] x86: make CONFIG_DEBUG_RODATA non-optional Kees Cook
2016-01-19 18:08 ` [PATCH v4 6/8] introduce post-init read-only memory Kees Cook
2016-01-19 18:08 ` [PATCH v4 7/8] lkdtm: verify that __ro_after_init works correctly Kees Cook
2016-01-19 18:08 ` [PATCH v4 8/8] x86, vdso: mark vDSO read-only after init Kees Cook
2016-01-19 19:09 ` Andy Lutomirski
2016-01-20 2:51 ` H. Peter Anvin
2016-01-20 2:56 ` Andy Lutomirski
2016-01-22 17:19 ` [kernel-hardening] [PATCH v4 0/8] introduce post-init read-only memory David Brown
2016-01-22 19:16 ` Laura Abbott
2016-01-22 19:57 ` Kees Cook
2016-01-23 9:49 ` Geert Uytterhoeven
2016-02-16 21:36 ` [PATCH] ARM: vdso: Mark vDSO code as read-only David Brown
2016-02-16 21:52 ` Kees Cook
2016-02-17 5:20 ` David Brown
2016-02-17 23:00 ` Kees Cook
2016-02-17 23:43 ` David Brown
2016-02-17 23:48 ` Kees Cook
2016-02-18 10:46 ` PaX Team [this message]
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