netdev - [PATCH 3/3] bnep: bnep_add_connection() should verify that it's dealing with l2cap socket

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Message-Id: <1418970059-32486-3-git-send-email-viro@ZenIV.linux.org.uk>
Date:	Fri, 19 Dec 2014 06:20:59 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	David Miller <davem@...emloft.net>
Cc:	Marcel Holtmann <marcel@...tmann.org>, netdev@...r.kernel.org,
	linux-bluetooth@...r.kernel.org
Subject: [PATCH 3/3] bnep: bnep_add_connection() should verify that it's dealing with l2cap socket

From: Al Viro <viro@...iv.linux.org.uk>

same story as cmtp

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 net/bluetooth/bnep/core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index 85bcc21..ce82722d0 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -533,6 +533,9 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
 
 	BT_DBG("");
 
+	if (!l2cap_is_socket(sock))
+		return -EBADFD;
+
 	baswap((void *) dst, &l2cap_pi(sock->sk)->chan->dst);
 	baswap((void *) src, &l2cap_pi(sock->sk)->chan->src);
 
-- 
2.1.3

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