Messages in this thread | | | From | Thiago Jung Bauermann <> | Subject | Re: [PATCH v2 7/7] ima: Support platform keyring for kernel appraisal | Date | Wed, 12 Dec 2018 22:19:56 -0200 |
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Nayna Jain <nayna@linux.ibm.com> writes:
> 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> > --- > Changelog: > > v2: > - replace 'rc' with 'xattr_len' when calling integrity_digsig_verify() > with INTEGRITY_KEYRING_IMA for readability > > security/integrity/ima/ima_appraise.c | 13 +++++++++++-- > 1 file changed, 11 insertions(+), 2 deletions(-)
With the change to only access the platform keyring when it is enabled:
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
-- Thiago Jung Bauermann IBM Linux Technology Center
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