diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 180473d..d370b43 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2605,7 +2605,16 @@
 	return false;
 }
 
-struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8])
+static bool ltk_type_master(u8 type)
+{
+	if (type == HCI_SMP_STK || type == HCI_SMP_LTK)
+		return true;
+
+	return false;
+}
+
+struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8],
+			     bool master)
 {
 	struct smp_ltk *k;
 
@@ -2614,6 +2623,9 @@
 		    memcmp(rand, k->rand, sizeof(k->rand)))
 			continue;
 
+		if (ltk_type_master(k->type) != master)
+			continue;
+
 		return k;
 	}
 
@@ -2621,13 +2633,14 @@
 }
 
 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
-				     u8 addr_type)
+				     u8 addr_type, bool master)
 {
 	struct smp_ltk *k;
 
 	list_for_each_entry(k, &hdev->long_term_keys, list)
 		if (addr_type == k->bdaddr_type &&
-		    bacmp(bdaddr, &k->bdaddr) == 0)
+		    bacmp(bdaddr, &k->bdaddr) == 0 &&
+		    ltk_type_master(k->type) == master)
 			return k;
 
 	return NULL;
@@ -2691,8 +2704,9 @@
 		ediv, u8 rand[8])
 {
 	struct smp_ltk *key, *old_key;
+	bool master = ltk_type_master(type);
 
-	old_key = hci_find_ltk_by_addr(hdev, bdaddr, addr_type);
+	old_key = hci_find_ltk_by_addr(hdev, bdaddr, addr_type, master);
 	if (old_key)
 		key = old_key;
 	else {
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 8c44bbe..7bb8094 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -3650,7 +3650,7 @@
 	if (conn == NULL)
 		goto not_found;
 
-	ltk = hci_find_ltk(hdev, ev->ediv, ev->random);
+	ltk = hci_find_ltk(hdev, ev->ediv, ev->random, conn->out);
 	if (ltk == NULL)
 		goto not_found;
 
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 9b11670..efe51cc 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -699,7 +699,8 @@
 	struct smp_ltk *key;
 	struct hci_conn *hcon = conn->hcon;
 
-	key = hci_find_ltk_by_addr(hcon->hdev, &hcon->dst, hcon->dst_type);
+	key = hci_find_ltk_by_addr(hcon->hdev, &hcon->dst, hcon->dst_type,
+				   hcon->out);
 	if (!key)
 		return 0;