From: David S. Miller <davem@davemloft.net>
Date: Tue, 15 Dec 2015 20:39:08 +0000 (-0500)
Subject: bluetooth: Validate socket address length in sco_sock_bind().
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5233252fce714053f0151680933571a2da9cbfb4;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

bluetooth: Validate socket address length in sco_sock_bind().

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index fe129663bd3f..f52bcbf2e58c 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -526,6 +526,9 @@ static int sco_sock_bind(struct socket *sock, struct sockaddr *addr,
 	if (!addr || addr->sa_family != AF_BLUETOOTH)
 		return -EINVAL;
 
+	if (addr_len < sizeof(struct sockaddr_sco))
+		return -EINVAL;
+
 	lock_sock(sk);
 
 	if (sk->sk_state != BT_OPEN) {