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@xxxxxxxxxx>
---
security/keys/internal.h | 3 +--
security/keys/key.c | 2 +-
security/keys/keyring.c | 9 +++------
3 files changed, 5 insertions(+), 9 deletions(-)
diff --git a/security/keys/internal.h b/security/keys/internal.h
index f4bf938..73950bf 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 1e23cc2..7d716b8 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 35e21d9..37e0d65 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)))
)
--
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