From mboxrd@z Thu Jan 1 00:00:00 1970 From: zohar@linux.vnet.ibm.com (Mimi Zohar) Date: Thu, 02 Nov 2017 18:10:41 -0400 Subject: Firmware signing -- Re: [PATCH 00/27] security, efi: Add kernel lockdown In-Reply-To: <14219.1509660259@warthog.procyon.org.uk> References: <1509660086.3416.15.camel@linux.vnet.ibm.com> <150842463163.7923.11081723749106843698.stgit@warthog.procyon.org.uk> <14219.1509660259@warthog.procyon.org.uk> Message-ID: <1509660641.3416.24.camel@linux.vnet.ibm.com> To: linux-security-module@vger.kernel.org List-Id: linux-security-module.vger.kernel.org On Thu, 2017-11-02 at 22:04 +0000, David Howells wrote: > Mimi Zohar wrote: > > > > Only validly signed device firmware may be loaded. > > > > fw_get_filesystem_firmware() calls kernel_read_file_from_path() to > > read the firmware, which calls into the security hooks. Is there > > another place that validates the firmware signatures. ?I'm not seeing > > which patch requires firmware to be signed? > > Luis has a set of patches for this. However, I'm not sure if that's going > anywhere at the moment. Possibly I should remove this from the manpage for > the moment. Or reflect that IMA-appraisal, if enabled, will enforce firmware being validly signed. Mimi -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html