Re: [PATCH v3 1/2] arch/ima: extend secure boot check to include trusted boot
From: Mimi Zohar
Date: Fri Jun 26 2020 - 16:23:23 EST
On Tue, 2020-06-23 at 17:26 -0300, Bruno Meneguele wrote:
<snip>
> diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
> index c1583d98c5e5..a760094e8f8d 100644
> --- a/security/integrity/ima/ima_main.c
> +++ b/security/integrity/ima/ima_main.c
> @@ -694,7 +694,7 @@ int ima_load_data(enum kernel_load_data_id id)
> switch (id) {
> case LOADING_KEXEC_IMAGE:
> if (IS_ENABLED(CONFIG_KEXEC_SIG)
> - && arch_ima_get_secureboot()) {
> + && arch_ima_secure_or_trusted_boot()) {
> pr_err("impossible to appraise a kernel image without a file descriptor; try using kexec_file_load syscall.\n");
> return -EACCES;
> }
Only IMA-appraisal enforces file integrity based on policy.
Mimi