linux-kernel - Re: [PATCH] x86/ima: require signed kernel modules

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Date:   Tue, 05 Feb 2019 18:13:26 -0500
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Luis Chamberlain <mcgrof@...nel.org>
Cc:     linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jessica Yu <jeyu@...nel.org>,
        David Howells <dhowells@...hat.com>,
        Seth Forshee <seth.forshee@...onical.com>,
        Justin Forbes <jforbes@...hat.com>,
        Matthew Garrett <mjg59@...gle.com>
Subject: Re: [PATCH] x86/ima: require signed kernel modules

On Tue, 2019-02-05 at 13:13 -0800, Luis Chamberlain wrote:
> Also, do we have selftests implemented to ensure we don't regress with
> your changes?

We're working on a regression test.  "modprobe" currently first
attempts to use finit_module, and then falls back to using
init_module.  Before writing a small program to load kernel modules,
are you aware of any that allows you to specify the syscall?

Mimi