1 files changed, 2 insertions, 0 deletions

diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index e26f860e5f2e..eff88a5f5d40 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -37,6 +37,8 @@ static int key_get_type_from_user(char *type,
                 return ret;
         if (ret == 0 || ret >= len)
                 return -EINVAL;
+        if (type[0] == '.')
+                return -EPERM;
         type[len - 1] = '\0';
         return 0;
 }