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Message-ID: <20200923182134.GA8990@openwall.com>
Date: Wed, 23 Sep 2020 20:21:34 +0200
From: Solar Designer <solar@...nwall.com>
To: Pavel Machek <pavel@....cz>
Cc: madvenka@...ux.microsoft.com, kernel-hardening@...ts.openwall.com,
linux-api@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-fsdevel@...r.kernel.org, linux-integrity@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org,
oleg@...hat.com, x86@...nel.org, luto@...nel.org,
David.Laight@...LAB.COM, fweimer@...hat.com, mark.rutland@....com,
mic@...ikod.net, Rich Felker <dalias@...c.org>
Subject: Re: [PATCH v2 0/4] [RFC] Implement Trampoline File Descriptor
On Wed, Sep 23, 2020 at 08:00:07PM +0200, Solar Designer wrote:
> A couple of other things Brad kindly pointed out:
>
> SELinux already has similar protections (execmem, execmod):
>
> http://lkml.iu.edu/hypermail/linux/kernel/0508.2/0194.html
> https://danwalsh.livejournal.com/6117.html
Actually, that's right in Madhavan's "Introduction": "LSMs such as
SELinux implement W^X" and "The W^X implementation today is not
complete." I'm sorry I jumped into this thread out of context.
Alexander
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