1 files changed, 3 insertions, 0 deletions

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 85a2796cac61..4b07acb8293c 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -742,6 +742,9 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
 
         BT_DBG("conn %p", conn);
 
+        if (!(conn->hcon->link_mode & HCI_LM_MASTER))
+                return SMP_CMD_NOTSUPP;
+
         hcon->pending_sec_level = authreq_to_seclevel(rp->auth_req);
 
         if (smp_ltk_encrypt(conn, hcon->pending_sec_level))