From: Kees Cook <keescook@chromium.org>
To: "Mickaël Salaün" <mic@digikod.net>
Cc: linux-kernel@vger.kernel.org, "Aleksa Sarai" <cyphar@cyphar.com>,
"Alexei Starovoitov" <ast@kernel.org>,
"Al Viro" <viro@zeniv.linux.org.uk>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Andy Lutomirski" <luto@kernel.org>,
"Christian Brauner" <christian.brauner@ubuntu.com>,
"Christian Heimes" <christian@python.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Deven Bowers" <deven.desai@linux.microsoft.com>,
"Dmitry Vyukov" <dvyukov@google.com>,
"Eric Biggers" <ebiggers@kernel.org>,
"Eric Chiang" <ericchiang@google.com>,
"Florian Weimer" <fweimer@redhat.com>,
"James Morris" <jmorris@namei.org>, "Jan Kara" <jack@suse.cz>,
"Jann Horn" <jannh@google.com>,
"Jonathan Corbet" <corbet@lwn.net>,
"Lakshmi Ramasubramanian" <nramas@linux.microsoft.com>,
"Matthew Garrett" <mjg59@google.com>,
"Matthew Wilcox" <willy@infradead.org>,
"Michael Kerrisk" <mtk.manpages@gmail.com>,
"Mimi Zohar" <zohar@linux.ibm.com>,
"Philippe Trébuchet" <philippe.trebuchet@ssi.gouv.fr>,
"Scott Shell" <scottsh@microsoft.com>,
"Sean Christopherson" <sean.j.christopherson@intel.com>,
"Shuah Khan" <shuah@kernel.org>,
"Steve Dower" <steve.dower@python.org>,
"Steve Grubb" <sgrubb@redhat.com>,
"Tetsuo Handa" <penguin-kernel@I-love.SAKURA.ne.jp>,
"Thibaut Sautereau" <thibaut.sautereau@clip-os.org>,
"Vincent Strubel" <vincent.strubel@ssi.gouv.fr>,
kernel-hardening@lists.openwall.com, linux-api@vger.kernel.org,
linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v7 7/7] ima: add policy support for the new file open MAY_OPENEXEC flag
Date: Fri, 24 Jul 2020 12:04:38 -0700 [thread overview]
Message-ID: <202007241204.3DD9B905E@keescook> (raw)
In-Reply-To: <20200723171227.446711-8-mic@digikod.net>
On Thu, Jul 23, 2020 at 07:12:27PM +0200, Mickaël Salaün wrote:
> From: Mimi Zohar <zohar@linux.ibm.com>
>
> The kernel has no way of differentiating between a file containing data
> or code being opened by an interpreter. The proposed O_MAYEXEC
> openat2(2) flag bridges this gap by defining and enabling the
> MAY_OPENEXEC flag.
>
> This patch adds IMA policy support for the new MAY_OPENEXEC flag.
>
> Example:
> measure func=FILE_CHECK mask=^MAY_OPENEXEC
> appraise func=FILE_CHECK appraise_type=imasig mask=^MAY_OPENEXEC
>
> Signed-off-by: Mickaël Salaün <mic@digikod.net>
^^^ this S-o-b should the last in the fields.
> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
> Reviewed-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
> Link: https://lore.kernel.org/r/1588167523-7866-3-git-send-email-zohar@linux.ibm.com
Reviewed-by: Kees Cook <keescook@chromium.org>
--
Kees Cook
next prev parent reply other threads:[~2020-07-24 19:04 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-23 17:12 [PATCH v7 0/7] Add support for O_MAYEXEC Mickaël Salaün
2020-07-23 17:12 ` [PATCH v7 1/7] exec: Change uselib(2) IS_SREG() failure to EACCES Mickaël Salaün
2020-08-11 18:59 ` Eric W. Biederman
2020-08-11 19:14 ` Eric W. Biederman
2020-07-23 17:12 ` [PATCH v7 2/7] exec: Move S_ISREG() check earlier Mickaël Salaün
2020-08-11 19:27 ` Eric W. Biederman
2020-07-23 17:12 ` [PATCH v7 3/7] exec: Move path_noexec() " Mickaël Salaün
2020-08-11 19:36 ` Eric W. Biederman
2020-08-13 15:31 ` Mickaël Salaün
2020-07-23 17:12 ` [PATCH v7 4/7] fs: Introduce O_MAYEXEC flag for openat2(2) Mickaël Salaün
2020-07-24 19:03 ` Kees Cook
2020-07-27 4:21 ` Al Viro
2020-07-27 5:27 ` Florian Weimer
2020-07-27 19:46 ` Mickaël Salaün
2020-08-11 19:51 ` Eric W. Biederman
2020-08-13 14:36 ` Mickaël Salaün
2020-07-23 17:12 ` [PATCH v7 5/7] fs,doc: Enable to enforce noexec mounts or file exec through O_MAYEXEC Mickaël Salaün
2020-07-24 19:03 ` Kees Cook
2020-08-11 19:58 ` Eric W. Biederman
2020-08-13 14:49 ` Mickaël Salaün
2020-07-23 17:12 ` [PATCH v7 6/7] selftest/openat2: Add tests for O_MAYEXEC enforcing Mickaël Salaün
2020-07-24 19:03 ` Kees Cook
2020-07-23 17:12 ` [PATCH v7 7/7] ima: add policy support for the new file open MAY_OPENEXEC flag Mickaël Salaün
2020-07-24 19:04 ` Kees Cook [this message]
2020-07-24 11:20 ` [PATCH v7 0/7] Add support for O_MAYEXEC Thibaut Sautereau
2020-07-24 19:06 ` Kees Cook
2020-07-25 11:15 ` Christian Brauner
2020-08-10 20:11 ` Mickaël Salaün
2020-08-10 20:21 ` Al Viro
2020-08-10 22:09 ` David Laight
2020-08-10 22:28 ` Al Viro
2020-08-10 22:47 ` Mickaël Salaün
2020-08-11 8:09 ` David Laight
2020-08-11 8:50 ` Mickaël Salaün
2020-08-11 13:07 ` Steve Grubb
2020-08-10 22:43 ` Mickaël Salaün
2020-08-10 23:03 ` Jann Horn
2020-08-11 8:48 ` Mickaël Salaün
2020-08-11 13:56 ` Mimi Zohar
2020-08-11 14:02 ` Matthew Wilcox
2020-08-11 14:30 ` Mimi Zohar
2020-08-11 17:18 ` Deven Bowers
2020-08-10 23:05 ` Al Viro
2020-08-11 8:49 ` Mickaël Salaün
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