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

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Date: Sat, 23 Dec 2023 09:34:11 -0600
From: Eric Biggers <ebiggers@...nel.org>
To: Paul Moore <paul@...l-moore.com>
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 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.

> 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().

Is there something else you have in mind?

- Eric