Bluetooth: Check the tx_window size on setsockopt
We have to check if the proposed tx_window value is not greater that
maximum value supported.
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Reviewed-by: João Paulo Rechi Vita <jprvita@profusion.mobi>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index f0441b0..6094870 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -1912,6 +1912,11 @@
break;
}
+ if (opts.txwin_size > L2CAP_DEFAULT_TX_WINDOW) {
+ err = -EINVAL;
+ break;
+ }
+
l2cap_pi(sk)->mode = opts.mode;
switch (l2cap_pi(sk)->mode) {
case L2CAP_MODE_BASIC:
