From: Jason Cooper <jason@lakedaemon.net>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Kees Cook <keescook@chromium.org>,
"Roberts, William C" <william.c.roberts@intel.com>,
Yann Droneaud <ydroneaud@opteya.com>,
Linux-MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
"kernel-hardening@lists.openwall.com"
<kernel-hardening@lists.openwall.com>,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Theodore Ts'o <tytso@mit.edu>, Arnd Bergmann <arnd@arndb.de>,
Greg KH <gregkh@linuxfoundation.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Ralf Baechle <ralf@linux-mips.org>,
"benh@kernel.crashing.org" <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
"David S. Miller" <davem@davemloft.net>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
"x86@kernel.org" <x86@kernel.org>,
Al Viro <viro@zeniv.linux.org.uk>,
Nick Kralevich <nnk@google.com>,
Jeffrey Vander Stoep <jeffv@google.com>,
Daniel Cashman <dcashman@android.com>
Subject: Re: [kernel-hardening] Re: [PATCH v2 1/7] random: Simplify API for random address requests
Date: Wed, 3 Aug 2016 18:42:47 +0000 [thread overview]
Message-ID: <20160803184247.GR4541@io.lakedaemon.net> (raw)
In-Reply-To: <878twfonbi.fsf@concordia.ellerman.id.au>
On Tue, Aug 02, 2016 at 01:35:13PM +1000, Michael Ellerman wrote:
> Jason Cooper <jason@lakedaemon.net> writes:
> > On Mon, Aug 01, 2016 at 12:47:59PM -0700, Kees Cook wrote:
> >> On Sun, Jul 31, 2016 at 1:56 PM, Jason Cooper <jason@lakedaemon.net> wrote:
> >>
> >> I have no new call sites in mind, but it seems safe to add a BUG_ON to
> >> verify we don't gain callers that don't follow the correct
> >> expectations. (Or maybe WARN and return start.)
> >
> > No, I think BUG_ON is appropriate. afaict, the only time this will be
> > encountered is during the development process.
>
> Unless it's not.
>
> Why crash someone's system when you could just page align the value
> you're given?
Ack, v3 on it's way.
thx,
Jason.
next prev parent reply other threads:[~2016-08-03 18:42 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-28 20:47 [kernel-hardening] [PATCH 0/7] char/random: Simplify random address requests Jason Cooper
2016-07-28 20:47 ` [kernel-hardening] [PATCH 1/7] random: Simplify API for " Jason Cooper
2016-07-29 8:59 ` [kernel-hardening] " Yann Droneaud
2016-07-29 18:20 ` Jason Cooper
2016-07-28 20:47 ` [kernel-hardening] [PATCH 2/7] x86: Use simpler " Jason Cooper
2016-07-28 20:47 ` [kernel-hardening] [PATCH 3/7] ARM: " Jason Cooper
2016-07-28 20:47 ` [kernel-hardening] [PATCH 4/7] arm64: " Jason Cooper
2016-07-29 13:48 ` [kernel-hardening] " Will Deacon
2016-07-28 20:47 ` [kernel-hardening] [PATCH 5/7] tile: " Jason Cooper
2016-07-28 20:47 ` [kernel-hardening] [PATCH 6/7] unicore32: " Jason Cooper
2016-07-28 20:47 ` [kernel-hardening] [PATCH 7/7] random: Remove unused randomize_range() Jason Cooper
2016-07-30 15:42 ` [kernel-hardening] [PATCH v2 0/7] char/random: Simplify random address requests Jason Cooper
2016-07-30 15:42 ` [kernel-hardening] [PATCH v2 1/7] random: Simplify API for " Jason Cooper
2016-07-31 16:46 ` [kernel-hardening] " Kees Cook
2016-07-31 20:56 ` Jason Cooper
2016-08-01 19:47 ` Kees Cook
2016-08-01 23:17 ` Jason Cooper
2016-08-02 3:35 ` Michael Ellerman
2016-08-03 18:42 ` Jason Cooper [this message]
2016-07-30 15:42 ` [kernel-hardening] [PATCH v2 2/7] x86: Use simpler " Jason Cooper
2016-07-30 15:42 ` [kernel-hardening] [PATCH v2 3/7] ARM: " Jason Cooper
2016-07-30 15:42 ` [kernel-hardening] [PATCH v2 4/7] arm64: " Jason Cooper
2016-07-30 15:42 ` [kernel-hardening] [PATCH v2 5/7] tile: " Jason Cooper
2016-07-30 15:42 ` [kernel-hardening] [PATCH v2 6/7] unicore32: " Jason Cooper
2016-07-30 15:42 ` [kernel-hardening] [PATCH v2 7/7] random: Remove unused randomize_range() Jason Cooper
2016-08-03 23:39 ` [kernel-hardening] [PATCH v3 0/7] char/random: Simplify random address requests Jason Cooper
2016-08-03 23:39 ` [kernel-hardening] [PATCH v3 1/7] random: Simplify API for " Jason Cooper
2016-08-04 12:47 ` [kernel-hardening] " Yann Droneaud
2016-08-03 23:39 ` [kernel-hardening] [PATCH v3 2/7] x86: Use simpler " Jason Cooper
2016-08-03 23:39 ` [kernel-hardening] [PATCH v3 3/7] ARM: " Jason Cooper
2016-08-03 23:39 ` [kernel-hardening] [PATCH v3 4/7] arm64: " Jason Cooper
2016-08-03 23:39 ` [kernel-hardening] [PATCH v3 5/7] tile: " Jason Cooper
2016-08-03 23:39 ` [kernel-hardening] [PATCH v3 6/7] unicore32: " Jason Cooper
2016-08-03 23:39 ` [kernel-hardening] [PATCH v3 7/7] random: Remove unused randomize_range() Jason Cooper
2016-08-03 23:48 ` [kernel-hardening] " Andrew Morton
2016-08-04 0:19 ` Jason Cooper
2016-08-04 2:41 ` [kernel-hardening] Re: [PATCH v3 0/7] char/random: Simplify random address requests Kees Cook
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160803184247.GR4541@io.lakedaemon.net \
--to=jason@lakedaemon.net \
--cc=akpm@linux-foundation.org \
--cc=arnd@arndb.de \
--cc=benh@kernel.crashing.org \
--cc=catalin.marinas@arm.com \
--cc=davem@davemloft.net \
--cc=dcashman@android.com \
--cc=gregkh@linuxfoundation.org \
--cc=hpa@zytor.com \
--cc=jeffv@google.com \
--cc=keescook@chromium.org \
--cc=kernel-hardening@lists.openwall.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux@arm.linux.org.uk \
--cc=mingo@redhat.com \
--cc=mpe@ellerman.id.au \
--cc=nnk@google.com \
--cc=paulus@samba.org \
--cc=ralf@linux-mips.org \
--cc=tglx@linutronix.de \
--cc=tytso@mit.edu \
--cc=viro@zeniv.linux.org.uk \
--cc=will.deacon@arm.com \
--cc=william.c.roberts@intel.com \
--cc=x86@kernel.org \
--cc=ydroneaud@opteya.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).