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Date: Wed, 23 Jul 2014 19:53:32 +0100 From: One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk> To: Kees Cook <keescook@...omium.org> Cc: linux-kernel@...r.kernel.org, Ming Lei <ming.lei@...onical.com>, "Luis R. Rodriguez" <mcgrof@...e.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, James Morris <james.l.morris@...cle.com>, David Howells <dhowells@...hat.com>, linux-doc@...r.kernel.org, linux-security-module@...r.kernel.org, linux-firmware@...nel.org, linux-wireless <linux-wireless@...r.kernel.org> Subject: Re: [PATCH 0/7] firmware validation On Mon, 14 Jul 2014 14:38:10 -0700 Kees Cook <keescook@...omium.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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