Prevent amp_read_loc_assoc_final_data() from dereferencing `mgr` as NULL.
Reported-and-tested-by: syzbot+f4fb0eaafdb51c32a153@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 9495b2ee757f ("Bluetooth: AMP: Process Chan Selected event")
Signed-off-by: Peilin Ye <yepeilin.cs@xxxxxxxxx>
---
net/bluetooth/amp.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
index 9c711f0dfae3..be2d469d6369 100644
--- a/net/bluetooth/amp.c
+++ b/net/bluetooth/amp.c
@@ -297,6 +297,9 @@ void amp_read_loc_assoc_final_data(struct hci_dev *hdev,
struct hci_request req;
int err;
+ if (!mgr)
+ return;
+
cp.phy_handle = hcon->handle;
cp.len_so_far = cpu_to_le16(0);
cp.max_len = cpu_to_le16(hdev->amp_assoc_size);
--
2.25.1
