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Diffstat (limited to 'security/keys/permission.c')
-rw-r--r--security/keys/permission.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/security/keys/permission.c b/security/keys/permission.c
index c35b5229e3cd..5f4c00c0947d 100644
--- a/security/keys/permission.c
+++ b/security/keys/permission.c
@@ -87,20 +87,25 @@ EXPORT_SYMBOL(key_task_permission);
* key_validate - Validate a key.
* @key: The key to be validated.
*
- * Check that a key is valid, returning 0 if the key is okay, -EKEYREVOKED if
- * the key's type has been removed or if the key has been revoked or
- * -EKEYEXPIRED if the key has expired.
+ * Check that a key is valid, returning 0 if the key is okay, -ENOKEY if the
+ * key is invalidated, -EKEYREVOKED if the key's type has been removed or if
+ * the key has been revoked or -EKEYEXPIRED if the key has expired.
*/
int key_validate(struct key *key)
{
struct timespec now;
+ unsigned long flags = key->flags;
int ret = 0;
if (key) {
+ ret = -ENOKEY;
+ if (flags & (1 << KEY_FLAG_INVALIDATED))
+ goto error;
+
/* check it's still accessible */
ret = -EKEYREVOKED;
- if (test_bit(KEY_FLAG_REVOKED, &key->flags) ||
- test_bit(KEY_FLAG_DEAD, &key->flags))
+ if (flags & ((1 << KEY_FLAG_REVOKED) |
+ (1 << KEY_FLAG_DEAD)))
goto error;
/* check it hasn't expired */