linux-kernel - [PATCH 2.6.32 12/42] bluetooth: Validate socket address length in sco_sock

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Message-Id: <20160123141222.492634534@1wt.eu>
Date:	Sat, 23 Jan 2016 15:12:33 +0100
From:	Willy Tarreau <w@....eu>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	"David S. Miller" <davem@...emloft.net>,
	Ben Hutchings <ben@...adent.org.uk>, Willy Tarreau <w@....eu>
Subject: [PATCH 2.6.32 12/42] bluetooth: Validate socket address length in
 sco_sock_bind().

2.6.32-longterm review patch.  If anyone has any objections, please let me know.

------------------

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

commit 5233252fce714053f0151680933571a2da9cbfb4 upstream.

Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Signed-off-by: Willy Tarreau <w@....eu>
---
 net/bluetooth/sco.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index e52443c..735b5fb 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -463,6 +463,9 @@ 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) {
-- 
1.7.12.2.21.g234cd45.dirty