[PATCH 3/4] Bluetooth: L2CAP: CoC: Disconnect if sum of payload sizes exceed SDU

[Christian Eggers]

Core 6.0, Vol 3, Part A, 3.4.3:
"... If the sum of the payload sizes for the K-frames exceeds the
specified SDU length, the receiver shall disconnect the channel."

This fixes L2CAP/LE/CFC/BV-27-C (running together with 'l2test -r -P
0x0027 -V le_public').

Signed-off-by: Christian Eggers <ceggers@xxxxxxx>
---
 net/bluetooth/l2cap_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index c9555b0a3461..69a57b956895 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6729,6 +6729,7 @@ static int l2cap_ecred_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
 
 	if (chan->sdu->len + skb->len > chan->sdu_len) {
 		BT_ERR("Too much LE L2CAP data received");
+		l2cap_send_disconn_req(chan, ECONNRESET);
 		err = -EINVAL;
 		goto failed;
 	}
-- 
2.44.4