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Commit e57e8669 authored by David Howells's avatar David Howells
Browse files

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: default avatarDavid Howells <dhowells@redhat.com>
parent ccc3e6d9

security/keys/internal.h

+1 −2
Original line number Diff line number Diff line
@@ -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);

security/keys/key.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

	}

security/keys/keyring.c

+3 −6
Original line number Diff line number Diff line
@@ -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)))

			    )