Messages in this thread Patch in this message | | | From | Eric Snowberg <> | Subject | [RFC PATCH 2/2] ima: Change default secure_boot policy to include appended signatures | Date | Thu, 6 Feb 2020 11:42:26 -0500 |
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Change the default secure_boot policy from:
appraise func=MODULE_CHECK appraise_type=imasig appraise func=FIRMWARE_CHECK appraise_type=imasig appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig appraise func=POLICY_CHECK appraise_type=imasig
to
appraise func=MODULE_CHECK appraise_type=imasig|modsig appraise func=FIRMWARE_CHECK appraise_type=imasig appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig|modsig appraise func=POLICY_CHECK appraise_type=imasig
This will allow appended signatures to work with the default secure_boot policy.
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com> --- security/integrity/ima/ima_policy.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index ef8dfd47c7e3..5d835715b472 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -189,11 +189,11 @@ static struct ima_rule_entry build_appraise_rules[] __ro_after_init = { static struct ima_rule_entry secure_boot_rules[] __ro_after_init = { {.action = APPRAISE, .func = MODULE_CHECK, - .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED}, + .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED | IMA_MODSIG_ALLOWED}, {.action = APPRAISE, .func = FIRMWARE_CHECK, .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED}, {.action = APPRAISE, .func = KEXEC_KERNEL_CHECK, - .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED}, + .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED | IMA_MODSIG_ALLOWED}, {.action = APPRAISE, .func = POLICY_CHECK, .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED}, }; -- 2.18.1
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