Re: [PATCH 1/2] module: add syscall to load module from fd
From: Rusty Russell
Date: Sun Sep 09 2012 - 22:31:22 EST
Kees Cook <keescook@xxxxxxxxxxxx> writes:
> On Fri, Sep 7, 2012 at 10:12 AM, Mimi Zohar <zohar@xxxxxxxxxxxxxxxxxx> wrote:
>> This method is a consistent and extensible approach to verifying the
>> integrity of file data/metadata, including kernel modules. The only
>> downside to this approach, I think, is that it requires changes to the
>> userspace tool.
> I'm fine with this -- it's an expected change that I'll pursue with
> glibc, kmod, etc. Without the userspace changes, nothing will use the
> new syscall. :) I've already got kmod (and older module-init-tools)
> patched to do this locally.
A syscall is the right way to do this. But does it need to be done?
1) Do the LSM guys really want this hook?
2) Do we have a userspace which uses it?
If yes to both, and noone comes up with any creative complaints, I will
take the patch.
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