[PATCH v2 2/6] integrity: ignore keys failing CA restrictions on non-UEFI platform

From: Nayna Jain
Date: Wed Aug 09 2023 - 15:53:52 EST


On non-UEFI platforms, handle restrict_link_by_ca failures differently.

Certificates which do not satisfy CA restrictions on non-UEFI platforms
are ignored.

Signed-off-by: Nayna Jain <nayna@xxxxxxxxxxxxx>
Reviewed-and-tested-by: Mimi Zohar <zohar@xxxxxxxxxxxxx>
---
security/integrity/platform_certs/machine_keyring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/integrity/platform_certs/machine_keyring.c b/security/integrity/platform_certs/machine_keyring.c
index 7aaed7950b6e..389a6e7c9245 100644
--- a/security/integrity/platform_certs/machine_keyring.c
+++ b/security/integrity/platform_certs/machine_keyring.c
@@ -36,7 +36,7 @@ void __init add_to_machine_keyring(const char *source, const void *data, size_t
* If the restriction check does not pass and the platform keyring
* is configured, try to add it into that keyring instead.
*/
- if (rc && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING))
+ if (rc && efi_enabled(EFI_BOOT) && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING))
rc = integrity_load_cert(INTEGRITY_KEYRING_PLATFORM, source,
data, len, perm);

--
2.31.1