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Commit bd7d46dd authored by Tetsuo Handa's avatar Tetsuo Handa Committed by David S. Miller
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Bluetooth: Check address length before reading address field 



KMSAN will complain if valid address length passed to bind() is shorter
than sizeof(struct sockaddr_sco) bytes.

Signed-off-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a9107a14

net/bluetooth/sco.c

+2 −2
Original line number Diff line number Diff line
@@ -523,12 +523,12 @@ static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, 
	struct sock *sk = sock->sk;

	int err = 0;



	BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr);



	if (!addr || addr_len < sizeof(struct sockaddr_sco) ||

	    addr->sa_family != AF_BLUETOOTH)

		return -EINVAL;



	BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr);



	lock_sock(sk);



	if (sk->sk_state != BT_OPEN) {