Function hci_mgmt_cmd() may pass hdev with null pointer to hci_mgmt_handler->func()
like below code:
err = handler->func(sk, hdev, cp, len);
Add hdev check to avoid passing null pointer.
Signed-off-by: Fugang Duan <[email protected]>
---
net/bluetooth/hci_sock.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 1298d72..7fdfc80 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -1186,6 +1186,8 @@ static int hci_mgmt_cmd(struct hci_mgmt_chan *chan, struct sock *sk,
if (hdev && chan->hdev_init)
chan->hdev_init(sk, hdev);
+ else if (!hdev)
+ goto done;
cp = buf + sizeof(*hdr);
--
1.9.1