From 5201d23cc8e57531e0b17e41c0ae10405ba6abd3 Mon Sep 17 00:00:00 2001 From: Soenke Huster Date: Sun, 23 Jan 2022 06:57:09 +0100 Subject: Bluetooth: msft: fix null pointer deref on msft_monitor_device_evt msft_find_handle_data returns NULL if it can't find the handle. Therefore, handle_data must be checked, otherwise a null pointer is dereferenced. Signed-off-by: Soenke Huster Signed-off-by: Marcel Holtmann --- net/bluetooth/msft.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net/bluetooth/msft.c') diff --git a/net/bluetooth/msft.c b/net/bluetooth/msft.c index 484540855863..9a3d77d3ca86 100644 --- a/net/bluetooth/msft.c +++ b/net/bluetooth/msft.c @@ -704,6 +704,8 @@ static void msft_monitor_device_evt(struct hci_dev *hdev, struct sk_buff *skb) ev->monitor_state, &ev->bdaddr); handle_data = msft_find_handle_data(hdev, ev->monitor_handle, false); + if (!handle_data) + return; switch (ev->addr_type) { case ADDR_LE_DEV_PUBLIC: -- cgit v1.2.3