Messages in this thread | | | Date | Tue, 22 Jul 2014 13:55:19 -0700 | Subject | Re: [PATCH 3/7] security: introduce kernel_fw_from_file hook | From | Kees Cook <> |
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On Tue, Jul 22, 2014 at 12:39 PM, Luis R. Rodriguez <mcgrof@suse.com> wrote: > On Mon, Jul 14, 2014 at 3:31 PM, Kees Cook <keescook@chromium.org> wrote: >> Yup, with this and the module hook, adding a similar hook for kexec >> makes sense as well. A paranoid kernel doesn't want to trust anything >> it's loading from userspace. :) > > Well I'm actually wondering if we could generalize requiring hooks or > not for LSM as part of the general kobject definition. Then we > wouldn't need to keep growing hooks for modules, firmware, kexec > images, etc, but instead using the interfaces for kobjects and who > depend on them. How that would actually look -- I'm not sure, but just > a thought.
Yeah, there does seem to be a repeated "get a thing from userspace" method here, but the interfaces have been rather scattered so far. I haven't seen an obvious way to consolidate them yet.
-Kees
-- Kees Cook Chrome OS Security
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