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
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