[PATCH] Bluetooth: Fix memory leak in hci_connect_le_scan

From: Navid Emamdoost
Date: Thu Nov 21 2019 - 15:20:55 EST


In the implementation of hci_connect_le_scan() when conn is added via
hci_conn_add(), if hci_explicit_conn_params_set() fails the allocated
memory for conn is leaked. Use hci_conn_del() to release it.

Fixes: f75113a26008 ("Bluetooth: add hci_connect_le_scan")
Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
---
net/bluetooth/hci_conn.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index ad5b0ac1f9ce..4472ec02c3e2 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1168,8 +1168,10 @@ struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
if (!conn)
return ERR_PTR(-ENOMEM);

- if (hci_explicit_conn_params_set(hdev, dst, dst_type) < 0)
+ if (hci_explicit_conn_params_set(hdev, dst, dst_type) < 0) {
+ hci_conn_del(conn);
return ERR_PTR(-EBUSY);
+ }

conn->state = BT_CONNECT;
set_bit(HCI_CONN_SCANNING, &conn->flags);
--
2.17.1