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-rw-r--r--net/bluetooth/l2cap.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 44a8fb0d6c29..0b54b7dd8401 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -1950,6 +1950,11 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
switch (optname) {
case L2CAP_OPTIONS:
+ if (sk->sk_state == BT_CONNECTED) {
+ err = -EINVAL;
+ break;
+ }
+
opts.imtu = l2cap_pi(sk)->imtu;
opts.omtu = l2cap_pi(sk)->omtu;
opts.flush_to = l2cap_pi(sk)->flush_to;
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