diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 6413593eee51..6d56c77741e1 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -164,6 +164,7 @@ static bool is_filtered_packet(struct sock *sk, struct sk_buff *skb)
 {
 	struct hci_filter *flt;
 	int flt_type, flt_event;
+	u8 event;
 
 	/* Apply filter */
 	flt = &hci_pi(sk)->filter;
@@ -177,7 +178,11 @@ static bool is_filtered_packet(struct sock *sk, struct sk_buff *skb)
 	if (hci_skb_pkt_type(skb) != HCI_EVENT_PKT)
 		return false;
 
-	flt_event = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
+	if (skb->len < 1)
+		return true;
+
+	event = *(__u8 *)skb->data;
+	flt_event = event & HCI_FLT_EVENT_BITS;
 
 	if (!hci_test_bit(flt_event, &flt->event_mask))
 		return true;
@@ -186,11 +191,17 @@ static bool is_filtered_packet(struct sock *sk, struct sk_buff *skb)
 	if (!flt->opcode)
 		return false;
 
-	if (flt_event == HCI_EV_CMD_COMPLETE &&
+	if (event == HCI_EV_CMD_COMPLETE && skb->len < 5)
+		return true;
+
+	if (event == HCI_EV_CMD_COMPLETE &&
 	    flt->opcode != get_unaligned((__le16 *)(skb->data + 3)))
 		return true;
 
-	if (flt_event == HCI_EV_CMD_STATUS &&
+	if (event == HCI_EV_CMD_STATUS && skb->len < 6)
+		return true;
+
+	if (event == HCI_EV_CMD_STATUS &&
 	    flt->opcode != get_unaligned((__le16 *)(skb->data + 4)))
 		return true;