1 files changed, 7 insertions, 1 deletions

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 01117ae84f1d..a2ddae2f37d7 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -2296,8 +2296,14 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
         else
                 sec_level = authreq_to_seclevel(auth);
 
-        if (smp_sufficient_security(hcon, sec_level, SMP_USE_LTK))
+        if (smp_sufficient_security(hcon, sec_level, SMP_USE_LTK)) {
+                /* If link is already encrypted with sufficient security we
+                 * still need refresh encryption as per Core Spec 5.0 Vol 3,
+                 * Part H 2.4.6
+                 */
+                smp_ltk_encrypt(conn, hcon->sec_level);
                 return 0;
+        }
 
         if (sec_level > hcon->pending_sec_level)
                 hcon->pending_sec_level = sec_level;