From: Dan Carpenter <dan.carpenter@oracle.com>
To: Kees Cook <keescook@chromium.org>
Cc: "open list:ANDROID DRIVERS" <devel@driverdev.osuosl.org>,
"Jann Horn" <jannh@google.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
LKML <linux-kernel@vger.kernel.org>,
"Arve Hjønnevåg" <arve@android.com>,
"Ingo Molnar" <mingo@redhat.com>,
"Alexander Potapenko" <glider@google.com>,
"Joe Perches" <joe@perches.com>,
"Dmitriy Vyukov" <dvyukov@google.com>,
"Todd Kjos" <tkjos@google.com>
Subject: Re: [PATCH v2 2/3] binder: do not initialize locals passed to copy_from_user()
Date: Thu, 5 Mar 2020 11:07:56 +0300 [thread overview]
Message-ID: <20200305080756.GB19839@kadam> (raw)
In-Reply-To: <202003040951.7857DFD936@keescook>
On Wed, Mar 04, 2020 at 10:13:40AM -0800, Kees Cook wrote:
> On Tue, Mar 03, 2020 at 12:38:32PM +0300, Dan Carpenter wrote:
> > The real fix is to initialize everything manually, the automated
> > initialization is a hardenning feature which many people will disable.
>
> I cannot disagree more with this sentiment. Linus has specifically said he
> wants this initialization on by default[1],
Fine, but as long as it's a configurable thing then we need to manually
initialize as well or it's still a CVE etc. It will take a while before
we drop support for old versions of GCC as well.
regards,
dan carpenter
next prev parent reply other threads:[~2020-03-05 8:08 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-02 13:04 [PATCH v2 1/3] compiler.h: define __no_initialize glider
2020-03-02 13:04 ` [PATCH v2 2/3] binder: do not initialize locals passed to copy_from_user() glider
2020-03-02 13:09 ` Joe Perches
2020-03-02 13:25 ` Alexander Potapenko
2020-03-02 13:52 ` Dan Carpenter
2020-03-02 13:58 ` Joe Perches
2020-03-02 18:17 ` Alexander Potapenko
2020-03-02 18:31 ` Jann Horn
2020-03-05 9:03 ` Rasmus Villemoes
2020-03-05 12:45 ` Jann Horn
2020-03-06 2:29 ` Al Viro
2020-03-02 18:50 ` Joe Perches
2020-03-03 9:14 ` Alexander Potapenko
2020-03-03 9:38 ` Dan Carpenter
2020-03-03 13:56 ` Joe Perches
2020-03-03 14:15 ` Dan Carpenter
2020-03-04 18:13 ` Kees Cook
2020-03-05 8:07 ` Dan Carpenter [this message]
2020-03-05 8:26 ` Kees Cook
2020-03-05 8:33 ` Alexander Potapenko
2020-03-02 17:38 ` Greg KH
2020-03-02 18:28 ` Alexander Potapenko
2020-03-02 13:04 ` [PATCH v2 3/3] sched/wait: avoid double initialization in ___wait_event() glider
2020-03-02 16:56 ` Todd Kjos
2020-03-02 18:03 ` Alexander Potapenko
2020-03-02 18:39 ` Greg Kroah-Hartman
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