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[PATCH 3.16.y-ckt 098/126] bluetooth: Validate socket address length in sco_sock_bind().

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  [PATCH 3.16.y-ckt 098/126] bluetooth: Validate socket address length in sco_sock_bind(). Luis Henriques <luis.henriques@canonical.com> - 2016-01-06 12:00 +0100

#1302599 — [PATCH 3.16.y-ckt 098/126] bluetooth: Validate socket address length in sco_sock_bind().

3.16.7-ckt22 -stable review patch.  If anyone has any objections, please let me know.

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

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

commit 5233252fce714053f0151680933571a2da9cbfb4 upstream.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 net/bluetooth/sco.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index dbbbc0292bd0..f9cd2e1e1635 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -459,6 +459,9 @@ 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) {
--
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