linux-kernel - Re: [PATCH] security: new security_file_ioctl

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Message-ID: <CAHC9VhRV9WN_pQgQUvkz7wb_oHO86JRV5r7twG6ropoJaR3Ujw@mail.gmail.com>
Date: Sun, 24 Dec 2023 15:00:46 -0500
From: Paul Moore <paul@...l-moore.com>
To: Eric Biggers <ebiggers@...nel.org>
Cc: Alfred Piccioni <alpic@...gle.com>, Stephen Smalley <stephen.smalley.work@...il.com>, 
	Eric Paris <eparis@...isplace.org>, linux-security-module@...r.kernel.org, 
	linux-fsdevel@...r.kernel.org, stable@...r.kernel.org, 
	selinux@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Casey Schaufler <casey@...aufler-ca.com>, Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Subject: Re: [PATCH] security: new security_file_ioctl_compat() hook

On Sat, Dec 23, 2023 at 10:34 AM Eric Biggers <ebiggers@...nel.org> wrote:
> On Fri, Dec 22, 2023 at 08:23:26PM -0500, Paul Moore wrote:
> > Is it considered valid for a native 64-bit task to use 32-bit
> > FS_IO32_XXX flags?
>
> No, that's not valid.

Excellent, thank you.

> > If not, do we want to remove the FS_IO32_XXX flag
> > checks in selinux_file_ioctl()?
>
> I don't see any such flag checks in selinux_file_ioctl().

Neither do I ... I'm not sure what I was looking at when I made that
comment, I'm going to chalk that up to a bit of holiday fog.  Sorry
for the noise.

> Is there something else you have in mind?

Nope.

-- 
paul-moore.com