From: tcharding <me@tobin.cc>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Randy Dunlap <rdunlap@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Kees Cook <keescook@chromium.org>,
Anna-Maria Gleixner <anna-maria@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>,
Theodore Ts'o <tytso@mit.edu>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH 3/3] vsprintf: Add use-early-random-bytes cmd line option
Date: Wed, 2 May 2018 11:27:58 +1000 [thread overview]
Message-ID: <20180502012758.GD3791@eros> (raw)
In-Reply-To: <CA+55aFzuGrp3XGhsj989XS-vAw9S9bzFUX6mNpvPaMfew6v1iA@mail.gmail.com>
On Wed, May 02, 2018 at 01:02:34AM +0000, Linus Torvalds wrote:
> On Tue, May 1, 2018 at 4:34 PM Tobin C. Harding <me@tobin.cc> wrote:
>
>
> > This option should NOT be enabled on production kernels.
>
> I think with your fixes to get_random_bytes_arch(), it's perfectly fine to
> use on production kernels (and doesn't even need a kernel command line
> option).
>
> It was only with the "use weak crypto" (that get_random_bytes_arch() used
> to fall back on) that it was a problem. That fixed "verify that
> get_random_bytes_arch() really uses hw crypto" is certainly not weak crypto.
Ok, I'll wait to see if anyone with a more paranoid disposition adds to
this otherwise will implement as suggested.
thanks,
Tobin.
next prev parent reply other threads:[~2018-05-02 1:27 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-01 23:33 [PATCH 0/3] enable early printing of hashed pointers Tobin C. Harding
2018-05-01 23:33 ` [PATCH 1/3] random: Fix whitespace pre random-bytes work Tobin C. Harding
2018-05-02 0:18 ` Theodore Y. Ts'o
2018-05-01 23:33 ` [PATCH 2/3] random: Return nbytes filled from hw RNG Tobin C. Harding
2018-05-01 23:44 ` Tobin C. Harding
2018-05-02 0:19 ` Theodore Y. Ts'o
2018-05-02 1:39 ` Steven Rostedt
2018-05-02 2:07 ` Tobin C. Harding
2018-05-01 23:33 ` [PATCH 3/3] vsprintf: Add use-early-random-bytes cmd line option Tobin C. Harding
2018-05-02 1:02 ` Linus Torvalds
2018-05-02 1:27 ` tcharding [this message]
2018-05-02 1:45 ` Steven Rostedt
2018-05-02 2:05 ` tcharding
2018-05-02 2:51 ` Linus Torvalds
2018-05-02 21:56 ` Andrew Morton
2018-05-03 2:56 ` Tobin C. Harding
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