diff options
| -rw-r--r-- | security/integrity/platform_certs/load_uefi.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/security/integrity/platform_certs/load_uefi.c b/security/integrity/platform_certs/load_uefi.c index c1c622b4dc78..ee4b4c666854 100644 --- a/security/integrity/platform_certs/load_uefi.c +++ b/security/integrity/platform_certs/load_uefi.c @@ -71,16 +71,38 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid, * Load the certs contained in the UEFI MokListRT database into the * platform trusted keyring. * + * This routine checks the EFI MOK config table first. If and only if + * that fails, this routine uses the MokListRT ordinary UEFI variable. + * * Return: Status */ static int __init load_moklist_certs(void) { + struct efi_mokvar_table_entry *mokvar_entry; efi_guid_t mok_var = EFI_SHIM_LOCK_GUID; void *mok; unsigned long moksize; efi_status_t status; int rc; + /* First try to load certs from the EFI MOKvar config table. + * It's not an error if the MOKvar config table doesn't exist + * or the MokListRT entry is not found in it. + */ + mokvar_entry = efi_mokvar_entry_find("MokListRT"); + if (mokvar_entry) { + rc = parse_efi_signature_list("UEFI:MokListRT (MOKvar table)", + mokvar_entry->data, + mokvar_entry->data_size, + get_handler_for_db); + /* All done if that worked. */ + if (!rc) + return rc; + + pr_err("Couldn't parse MokListRT signatures from EFI MOKvar config table: %d\n", + rc); + } + /* Get MokListRT. It might not exist, so it isn't an error * if we can't get it. */ |