[PATCH 3.18 12/50] Bluetooth: bnep: bnep_add_connection() should verify that its dealing with l2cap socket
From: Greg Kroah-Hartman
Date: Fri Aug 04 2017 - 19:34:06 EST
3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
commit 71bb99a02b32b4cc4265118e85f6035ca72923f0 upstream.
same story as cmtp
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/bluetooth/bnep/core.c | 3 +++
1 file changed, 3 insertions(+)
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -533,6 +533,9 @@ int bnep_add_connection(struct bnep_conn
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);