From: Matthew Wilcox <willy@infradead.org>
To: Jonathan Corbet <corbet@lwn.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
jeffxu@chromium.org, keescook@chromium.org, jannh@google.com,
sroettger@google.com, gregkh@linuxfoundation.org,
torvalds@linux-foundation.org, usama.anjum@collabora.com,
Liam.Howlett@oracle.com, surenb@google.com, merimus@google.com,
rdunlap@infradead.org, jeffxu@google.com, jorgelo@chromium.org,
groeck@chromium.org, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-mm@kvack.org,
pedro.falcato@gmail.com, dave.hansen@intel.com,
linux-hardening@vger.kernel.org, deraadt@openbsd.org
Subject: Re: [PATCH v10 0/5] Introduce mseal
Date: Tue, 14 May 2024 22:28:17 +0100 [thread overview]
Message-ID: <ZkPXcT_JuQeZCAv0@casper.infradead.org> (raw)
In-Reply-To: <871q646rea.fsf@meer.lwn.net>
On Tue, May 14, 2024 at 02:59:57PM -0600, Jonathan Corbet wrote:
> Andrew Morton <akpm@linux-foundation.org> writes:
>
> > On Mon, 15 Apr 2024 16:35:19 +0000 jeffxu@chromium.org wrote:
> >
> >> This patchset proposes a new mseal() syscall for the Linux kernel.
> >
> > I have not moved this into mm-stable for a 6.10 merge. Mainly because
> > of the total lack of Reviewed-by:s and Acked-by:s.
> >
> > The code appears to be stable enough for a merge.
> >
> > It's awkward that we're in conference this week, but I ask people to
> > give consideration to the desirability of moving mseal() into mainline
> > sometime over the next week, please.
>
> I hate to be obnoxious, but I *was* copied ... :)
>
> Not taking a position on merging, but I have to ask: are we convinced at
> this point that mseal() isn't a chrome-only system call? Did we ever
> see the glibc patches that were promised?
I think _this_ version of mseal() is OpenBSD's mimmutable() with a
basically unused extra 'flags' argument. As such, we have an existance
proof that it's useful beyond Chrome.
I think Liam still had concerns around the
walk-the-vmas-twice-to-error-out-early part of the implementation?
Although we can always fix the implementation later; changing the API
is hard.
next prev parent reply other threads:[~2024-05-14 21:28 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-15 16:35 [PATCH v10 0/5] Introduce mseal jeffxu
2024-04-15 16:35 ` [PATCH v10 1/5] mseal: Wire up mseal syscall jeffxu
2024-04-15 18:12 ` Muhammad Usama Anjum
2024-04-15 18:21 ` Linus Torvalds
2024-04-15 19:06 ` Jeff Xu
2024-04-15 16:35 ` [PATCH v10 2/5] mseal: add " jeffxu
2024-04-16 14:59 ` Liam R. Howlett
2024-04-16 15:17 ` Jann Horn
2024-04-16 16:42 ` Theo de Raadt
2024-04-15 16:35 ` [PATCH v10 3/5] selftest mm/mseal memory sealing jeffxu
2024-04-15 18:32 ` Muhammad Usama Anjum
2024-04-15 20:27 ` Jeff Xu
2024-04-16 0:34 ` Kees Cook
2024-05-02 11:24 ` Ryan Roberts
2024-05-02 15:18 ` Jeff Xu
2024-05-02 22:39 ` Jeff Xu
2024-05-03 8:30 ` Ryan Roberts
2024-04-15 16:35 ` [PATCH v10 4/5] mseal:add documentation jeffxu
2024-04-15 16:35 ` [PATCH v10 5/5] selftest mm/mseal read-only elf memory segment jeffxu
2024-04-16 15:13 ` [PATCH v10 0/5] Introduce mseal Liam R. Howlett
2024-04-16 19:40 ` Jeff Xu
2024-04-18 20:19 ` Suren Baghdasaryan
2024-04-19 1:22 ` Jeff Xu
2024-04-19 14:57 ` Suren Baghdasaryan
2024-04-19 15:14 ` Jeff Xu
2024-04-19 16:54 ` Suren Baghdasaryan
2024-04-19 17:59 ` Pedro Falcato
2024-04-20 1:23 ` Jeff Xu
2024-05-14 17:46 ` Andrew Morton
2024-05-14 19:52 ` Kees Cook
2024-05-23 23:32 ` Kees Cook
2024-05-23 23:54 ` Andrew Morton
2024-05-24 15:19 ` Linus Torvalds
2024-05-14 20:59 ` Jonathan Corbet
2024-05-14 21:28 ` Matthew Wilcox [this message]
2024-05-14 22:48 ` Theo de Raadt
2024-05-14 23:01 ` Andrew Morton
2024-05-14 23:47 ` Theo de Raadt
2024-05-15 2:58 ` Willy Tarreau
2024-05-15 3:36 ` Linus Torvalds
2024-05-15 4:14 ` Linus Torvalds
2024-05-15 6:14 ` Willy Tarreau
2024-05-15 0:43 ` Linus Torvalds
2024-05-15 0:57 ` Theo de Raadt
2024-05-15 1:20 ` Linus Torvalds
2024-05-15 1:47 ` Theo de Raadt
2024-05-15 2:28 ` Linus Torvalds
2024-05-15 2:42 ` Theo de Raadt
2024-05-15 4:53 ` Liam R. Howlett
2024-05-14 21:28 ` Liam R. Howlett
2024-05-15 17:18 ` Jeff Xu
2024-05-15 22:19 ` Liam R. Howlett
2024-05-16 0:59 ` Jeff Xu
2024-05-21 16:00 ` Liam R. Howlett
2024-05-21 20:55 ` Jeff Xu
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