From: Kees Cook <keescook@chromium.org>
To: Alyssa Ross <hi@alyssa.is>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Eric Biederman <ebiederm@xmission.com>,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] exec: allow executing block devices
Date: Wed, 11 Oct 2023 08:59:12 -0700 [thread overview]
Message-ID: <202310110857.522FAFCA@keescook> (raw)
In-Reply-To: <87o7h5vcao.fsf@alyssa.is>
On Wed, Oct 11, 2023 at 07:38:39AM +0000, Alyssa Ross wrote:
> Is it possible to have a file-backed memfd? Strange name if so!
Not that I'm aware, but a program could just read the ELF from the block
device and stick it in a memfd and execute the result.
--
Kees Cook
next prev parent reply other threads:[~2023-10-11 15:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-10 9:21 [PATCH] exec: allow executing block devices Alyssa Ross
2023-10-10 22:48 ` Kees Cook
2023-10-11 7:38 ` Alyssa Ross
2023-10-11 15:59 ` Kees Cook [this message]
2023-10-20 6:06 ` kernel test robot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202310110857.522FAFCA@keescook \
--to=keescook@chromium.org \
--cc=brauner@kernel.org \
--cc=ebiederm@xmission.com \
--cc=hi@alyssa.is \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=penguin-kernel@i-love.sakura.ne.jp \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.