Messages in this thread | | | Date | Wed, 23 Jul 2014 19:53:32 +0100 | From | One Thousand Gnomes <> | Subject | Re: [PATCH 0/7] firmware validation |
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On Mon, 14 Jul 2014 14:38:10 -0700 Kees Cook <keescook@chromium.org> wrote:
> This creates a new LSM hook to validate the contents (and origin) of > component firmware being provided to the kernel from userspace via the > request_firmware() interface. > > Additionally creates a test module and test cases for all of the existing > interfaces as well as the new "fd" interface.
There is a specific reason that this is a good idea. On any system with basic capabilities only anyone owning DAC capabilities can replace the firmware file on disk. So for some devices DAC implies a route to RAWIO which is not good.
Alan
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