1 files changed, 8 insertions, 0 deletions

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 54ceb1f2cc9a..d4cad29b033f 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -32,6 +32,7 @@
 
 #include <linux/debugfs.h>
 #include <linux/crc16.h>
+#include <linux/filter.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -5835,6 +5836,9 @@ static int l2cap_reassemble_sdu(struct l2cap_chan *chan, struct sk_buff *skb,
                 if (chan->sdu)
                         break;
 
+                if (!pskb_may_pull(skb, L2CAP_SDULEN_SIZE))
+                        break;
+
                 chan->sdu_len = get_unaligned_le16(skb->data);
                 skb_pull(skb, L2CAP_SDULEN_SIZE);
 
@@ -6610,6 +6614,10 @@ static int l2cap_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
                 goto drop;
         }
 
+        if ((chan->mode == L2CAP_MODE_ERTM ||
+             chan->mode == L2CAP_MODE_STREAMING) && sk_filter(chan->data, skb))
+                goto drop;
+
         if (!control->sframe) {
                 int err;