From: Kees Cook <keescook@chromium.org>
To: Jeff Xu <jeffxu@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Peter Xu <peterx@redhat.com>,
jeffxu@chromium.org, skhan@linuxfoundation.org,
dmitry.torokhov@gmail.com, dverkamp@chromium.org,
hughd@google.com, jorgelo@chromium.org,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-mm@kvack.org, jannh@google.com,
linux-hardening@vger.kernel.org,
kernel test robot <lkp@intel.com>
Subject: Re: [PATCH v6 3/6] mm/memfd: add MFD_NOEXEC_SEAL and MFD_EXEC
Date: Fri, 16 Dec 2022 12:35:10 -0800 [thread overview]
Message-ID: <202212161233.85C9783FB@keescook> (raw)
In-Reply-To: <CALmYWFsNp87a5uVQUAb4PG0khFN8Xxd=ibh9Q7g-Y0XW1Mn-8Q@mail.gmail.com>
On Fri, Dec 16, 2022 at 10:11:44AM -0800, Jeff Xu wrote:
> Once per boot seems too little, it would be nice if we can list all processes.
> I agree ratelimited might be too much.
> There is a feature gap here for logging.
>
> Kees, what do you think ?
I agree once per boot is kind of frustrating "I fixed the one warning,
oh, now it's coming from a different process". But ratelimit is, in
retrospect, still too often.
Let's go with per boot -- this should be noisy "enough" to get the
changes in API into the callers without being too much of a hassle.
--
Kees Cook
next prev parent reply other threads:[~2022-12-16 20:35 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-07 15:49 [PATCH v6 0/6] mm/memfd: introduce MFD_NOEXEC_SEAL and MFD_EXEC jeffxu
2022-12-07 15:49 ` [PATCH v6 1/6] mm/memfd: add F_SEAL_EXEC jeffxu
2022-12-08 16:16 ` Kees Cook
2022-12-07 15:49 ` [PATCH v6 2/6] selftests/memfd: add tests for F_SEAL_EXEC jeffxu
2022-12-08 16:21 ` Kees Cook
2022-12-07 15:49 ` [PATCH v6 3/6] mm/memfd: add MFD_NOEXEC_SEAL and MFD_EXEC jeffxu
2022-12-08 16:27 ` Kees Cook
2022-12-08 22:55 ` Jeff Xu
2022-12-16 15:46 ` Peter Xu
2022-12-16 17:15 ` Jeff Xu
2022-12-16 17:42 ` Andrew Morton
2022-12-16 18:11 ` Jeff Xu
2022-12-16 20:35 ` Kees Cook [this message]
2022-12-16 21:46 ` Jeff Xu
2022-12-16 22:06 ` Andrew Morton
2022-12-16 23:40 ` Jeff Xu
2022-12-20 16:55 ` Shuah Khan
2022-12-23 18:06 ` Jeff Xu
2022-12-07 15:49 ` [PATCH v6 4/6] mm/memfd: Add write seals when apply SEAL_EXEC to executable memfd jeffxu
2022-12-08 16:27 ` Kees Cook
2022-12-07 15:49 ` [PATCH v6 5/6] selftests/memfd: add tests for MFD_NOEXEC_SEAL MFD_EXEC jeffxu
2022-12-08 16:30 ` Kees Cook
2022-12-07 15:49 ` [PATCH v6 6/6] mm/memfd: security hook for memfd_create jeffxu
2022-12-08 16:32 ` Kees Cook
2022-12-08 16:46 ` Kees Cook
2022-12-08 16:13 ` [PATCH v6 0/6] mm/memfd: introduce MFD_NOEXEC_SEAL and MFD_EXEC Kees Cook
2022-12-08 18:33 ` Jeff Xu
2022-12-08 20:55 ` Kees Cook
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