KEYS: Drop the permissions argument from __keyring_search_one()

Drop the permissions argument from __keyring_search_one() as the only caller
passes 0 here - which causes all checks to be skipped.

Signed-off-by: David Howells <dhowells@redhat.com>

3 files changed, 5 insertions, 9 deletions

diff --git a/security/keys/internal.h b/security/keys/internal.h
index f4bf938b68b4..73950bf8f875 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -99,8 +99,7 @@ extern void __key_link_end(struct key *keyring,
                            unsigned long prealloc);
 
 extern key_ref_t __keyring_search_one(key_ref_t keyring_ref,
-                                      const struct keyring_index_key *index_key,
-                                      key_perm_t perm);
+                                      const struct keyring_index_key *index_key);
 
 extern struct key *keyring_search_instkey(struct key *keyring,
                                           key_serial_t target_id);
diff --git a/security/keys/key.c b/security/keys/key.c
index 1e23cc288106..7d716b82a61e 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -847,7 +847,7 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
          * update that instead if possible
          */
         if (index_key.type->update) {
-                key_ref = __keyring_search_one(keyring_ref, &index_key, 0);
+                key_ref = __keyring_search_one(keyring_ref, &index_key);
                 if (!IS_ERR(key_ref))
                         goto found_matching_key;
         }
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 87eff32b53f4..eeef1a073db4 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -531,15 +531,14 @@ EXPORT_SYMBOL(keyring_search);
  * RCU is used to make it unnecessary to lock the keyring key list here.
  *
  * Returns a pointer to the found key with usage count incremented if
- * successful and returns -ENOKEY if not found.  Revoked keys and keys not
- * providing the requested permission are skipped over.
+ * successful and returns -ENOKEY if not found.  Revoked and invalidated keys
+ * are skipped over.
  *
  * If successful, the possession indicator is propagated from the keyring ref
  * to the returned key reference.
  */
 key_ref_t __keyring_search_one(key_ref_t keyring_ref,
-                               const struct keyring_index_key *index_key,
-                               key_perm_t perm)
+                               const struct keyring_index_key *index_key)
 {
         struct keyring_list *klist;
         struct key *keyring, *key;
@@ -560,8 +559,6 @@ key_ref_t __keyring_search_one(key_ref_t keyring_ref,
                         if (key->type == index_key->type &&
                             (!key->type->match ||
                              key->type->match(key, index_key->description)) &&
-                            key_permission(make_key_ref(key, possessed),
-                                           perm) == 0 &&
                             !(key->flags & ((1 << KEY_FLAG_INVALIDATED) |
                                             (1 << KEY_FLAG_REVOKED)))
                             )