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-rw-r--r--security/integrity/ima/ima_appraise.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index deec1804a00a..a2baa85ea2f5 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -8,7 +8,7 @@
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2 of the License.
*/
-#include <linux/module.h>
+#include <linux/init.h>
#include <linux/file.h>
#include <linux/fs.h>
#include <linux/xattr.h>
@@ -289,12 +289,22 @@ int ima_appraise_measurement(enum ima_hooks func,
case EVM_IMA_XATTR_DIGSIG:
set_bit(IMA_DIGSIG, &iint->atomic_flags);
rc = integrity_digsig_verify(INTEGRITY_KEYRING_IMA,
- (const char *)xattr_value, rc,
+ (const char *)xattr_value,
+ xattr_len,
iint->ima_hash->digest,
iint->ima_hash->length);
if (rc == -EOPNOTSUPP) {
status = INTEGRITY_UNKNOWN;
- } else if (rc) {
+ break;
+ }
+ if (IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING) && rc &&
+ func == KEXEC_KERNEL_CHECK)
+ rc = integrity_digsig_verify(INTEGRITY_KEYRING_PLATFORM,
+ (const char *)xattr_value,
+ xattr_len,
+ iint->ima_hash->digest,
+ iint->ima_hash->length);
+ if (rc) {
cause = "invalid-signature";
status = INTEGRITY_FAIL;
} else {