From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Morris Subject: Re: [PATCH v2 7/7] ima: Support platform keyring for kernel appraisal Date: Wed, 12 Dec 2018 05:53:30 +1100 (AEDT) Message-ID: References: <20181208202705.18673-1-nayna@linux.ibm.com> <20181208202705.18673-8-nayna@linux.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Return-path: In-Reply-To: <20181208202705.18673-8-nayna@linux.ibm.com> Sender: linux-kernel-owner@vger.kernel.org To: Nayna Jain Cc: linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, zohar@linux.ibm.com, dhowells@redhat.com, jforbes@redhat.com, seth.forshee@canonical.com, kexec@lists.infradead.org, keyrings@vger.kernel.org, vgoyal@redhat.com, ebiederm@xmission.com, mpe@ellerman.id.au List-Id: linux-efi@vger.kernel.org On Sun, 9 Dec 2018, Nayna Jain wrote: > On secure boot enabled systems, the bootloader verifies the kernel > image and possibly the initramfs signatures based on a set of keys. A > soft reboot(kexec) of the system, with the same kernel image and > initramfs, requires access to the original keys to verify the > signatures. > > This patch allows IMA-appraisal access to those original keys, now > loaded on the platform keyring, needed for verifying the kernel image > and initramfs signatures. > > Signed-off-by: Nayna Jain > Reviewed-by: Mimi Zohar > Acked-by: Serge Hallyn > - replace 'rc' with 'xattr_len' when calling integrity_digsig_verify() > with INTEGRITY_KEYRING_IMA for readability > Suggested-by: Serge Hallyn Reviewed-by: James Morris -- James Morris