From 255c76014af74165428e7aa16414b857e2bdccf2 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Wed, 4 Feb 2009 21:07:19 +0100 Subject: [PATCH] Bluetooth: Don't check encryption for L2CAP raw sockets For L2CAP sockets with medium and high security requirement a missing encryption will enforce the closing of the link. For the L2CAP raw sockets this is not needed, so skip that check. This fixes a crash when pairing Bluetooth 2.0 (and earlier) devices since the L2CAP state machine got confused and then locked up the whole system. Signed-off-by: Marcel Holtmann --- net/bluetooth/l2cap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index 71a064fa0285..b677af671f31 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -2420,6 +2420,9 @@ static int l2cap_disconn_ind(struct hci_conn *hcon, u8 reason) static inline void l2cap_check_encryption(struct sock *sk, u8 encrypt) { + if (sk->sk_type != SOCK_SEQPACKET) + return; + if (encrypt == 0x00) { if (l2cap_pi(sk)->sec_level == BT_SECURITY_MEDIUM) { l2cap_sock_clear_timer(sk); -- 2.39.2