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Diffstat (limited to 'security/keys/key.c')
-rw-r--r--security/keys/key.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/security/keys/key.c b/security/keys/key.c
index 627697181e6a..a057e3311aad 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -795,12 +795,16 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
goto error_3;
}
- /* search for an existing key of the same type and description in the
- * destination keyring
+ /* if it's possible to update this type of key, search for an existing
+ * key of the same type and description in the destination keyring and
+ * update that instead if possible
*/
- key_ref = __keyring_search_one(keyring_ref, ktype, description, 0);
- if (!IS_ERR(key_ref))
- goto found_matching_key;
+ if (ktype->update) {
+ key_ref = __keyring_search_one(keyring_ref, ktype, description,
+ 0);
+ if (!IS_ERR(key_ref))
+ goto found_matching_key;
+ }
/* decide on the permissions we want */
perm = KEY_POS_VIEW | KEY_POS_SEARCH | KEY_POS_LINK | KEY_POS_SETATTR;