From: Kees Cook <keescook@chromium.org>
To: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: linux-integrity <linux-integrity@vger.kernel.org>,
linux-security-module <linux-security-module@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
"Luis R . Rodriguez" <mcgrof@kernel.org>,
Eric Biederman <ebiederm@xmission.com>,
Kexec Mailing List <kexec@lists.infradead.org>,
Andres Rodriguez <andresx7@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH v6 3/8] ima: based on policy require signed kexec kernel images
Date: Sat, 14 Jul 2018 19:21:38 -0700 [thread overview]
Message-ID: <CAGXu5jKDE0mPzi8RUhsViEwjhZX1=M-xU4DEa70tk3i2tN+rPA@mail.gmail.com> (raw)
In-Reply-To: <1531505163-20227-4-git-send-email-zohar@linux.vnet.ibm.com>
On Fri, Jul 13, 2018 at 11:05 AM, Mimi Zohar <zohar@linux.vnet.ibm.com> wrote:
> The original kexec_load syscall can not verify file signatures, nor can
> the kexec image be measured. Based on policy, deny the kexec_load
> syscall.
>
> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
> Cc: Eric Biederman <ebiederm@xmission.com>
> Cc: Kees Cook <keescook@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
-Kees
--
Kees Cook
Pixel Security
next prev parent reply other threads:[~2018-07-15 2:21 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-13 18:05 [PATCH v6 0/8] kexec/firmware: support system wide policy requiring signatures Mimi Zohar
2018-07-13 18:05 ` [PATCH v6 1/8] security: define new LSM hook named security_kernel_load_data Mimi Zohar
2018-07-15 2:13 ` Kees Cook
2018-07-13 18:05 ` [PATCH v6 2/8] kexec: add call to LSM hook in original kexec_load syscall Mimi Zohar
2018-07-15 2:14 ` Kees Cook
2018-07-13 18:05 ` [PATCH v6 3/8] ima: based on policy require signed kexec kernel images Mimi Zohar
2018-07-15 2:21 ` Kees Cook [this message]
2018-07-13 18:05 ` [PATCH v6 4/8] firmware: add call to LSM hook before firmware sysfs fallback Mimi Zohar
2018-07-15 2:24 ` Kees Cook
2018-07-13 18:06 ` [PATCH v6 5/8] ima: based on policy require signed firmware (sysfs fallback) Mimi Zohar
2018-07-15 2:27 ` Kees Cook
2018-07-13 18:06 ` [PATCH v6 6/8] ima: add build time policy Mimi Zohar
2018-07-15 2:28 ` Kees Cook
2018-07-13 18:06 ` [PATCH v6 7/8] module: replace the existing LSM hook in init_module Mimi Zohar
2018-07-15 2:30 ` Kees Cook
2018-07-16 13:52 ` Mimi Zohar
2018-07-13 18:06 ` [PATCH v6 8/8] ima: based on policy warn about loading firmware (pre-allocated buffer) Mimi Zohar
2018-07-15 2:34 ` Kees Cook
2018-07-16 19:59 ` [PATCH v6 0/8] kexec/firmware: support system wide policy requiring signatures James Morris
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