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SubjectRe: [PATCH v2 7/7] ima: Support platform keyring for kernel appraisal
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 <nayna@linux.ibm.com>
> Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
> Acked-by: Serge Hallyn <serge@hallyn.com>
> - replace 'rc' with 'xattr_len' when calling integrity_digsig_verify()
> with INTEGRITY_KEYRING_IMA for readability
> Suggested-by: Serge Hallyn <serge@hallyn.com>


Reviewed-by: James Morris <james.morris@microsoft.com>

--
James Morris
<jmorris@namei.org>

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