linux-kernel - [PATCH 3.19.y-ckt 019/160] bluetooth: Validate socket address length in sco_sock

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Date:	Tue, 19 Jan 2016 17:04:57 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	"David S. Miller" <davem@...emloft.net>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 019/160] bluetooth: Validate socket address length in sco_sock_bind().

3.19.8-ckt13 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: "David S. Miller" <davem@...emloft.net>

[ Upstream commit 5233252fce714053f0151680933571a2da9cbfb4 ]

Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 net/bluetooth/sco.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 30e5ea3..d050224 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -520,6 +520,9 @@ static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le
 	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) {
-- 
1.9.1