Thread (2 messages) flat view 2 messages, 2 authors, 2019-11-22
STALE2460d

[PATCH] Bluetooth: Fix memory leak in hci_connect_le_scan

From: Navid Emamdoost <hidden>
Date: 2019-11-21 20:20:55
Also in: linux-bluetooth, lkml
Subsystem: bluetooth subsystem, the rest · Maintainers: Marcel Holtmann, Luiz Augusto von Dentz, Linus Torvalds

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 <redacted>
---
 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
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