linux-kernel - Re: [PATCH 1/2] module: add syscall to load module from fd

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Message-ID: <87obl2ptq0.fsf@rustcorp.com.au>
Date:	Wed, 19 Sep 2012 13:08:47 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Kees Cook <keescook@...omium.org>,
	linux-kernel@...r.kernel.org,
	Serge Hallyn <serge.hallyn@...onical.com>,
	James Morris <james.l.morris@...cle.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Eric Paris <eparis@...hat.com>, Jiri Kosina <jkosina@...e.cz>,
	linux-security-module@...r.kernel.org
Subject: Re: [PATCH 1/2] module: add syscall to load module from fd

Mimi Zohar <zohar@...ux.vnet.ibm.com> writes:

> On Wed, 2012-09-12 at 17:04 +0930, Rusty Russell wrote:
>> "H. Peter Anvin" <hpa@...or.com> writes:
>> 
>> > On 09/06/2012 11:13 AM, Kees Cook wrote:
>> >> Instead of (or in addition to) kernel module signing, being able to reason
>> >> about the origin of a kernel module would be valuable in situations
>> >> where an OS already trusts a specific file system, file, etc, due to
>> >> things like security labels or an existing root of trust to a partition
>> >> through things like dm-verity.
>> >>
>> >> This introduces a new syscall (currently only on x86), similar to
>> >> init_module, that has only two arguments. The first argument is used as
>> >> a file descriptor to the module and the second argument is a pointer to
>> >> the NULL terminated string of module arguments.
>> >>
>> >
>> > Please use the standard naming convention, which is an f- prefix (i.e. 
>> > finit_module()).
>> 
>> Good point; I just did a replace here.
>
> Have you pushed out the changes?  And if so, to where?

No, I kept them in my patch series but out of linux-next, since I
thought you disliked the placement of the security hooks?

Cheers,
Rusty.
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