Bluetooth: HCI: Fix potential null-ptr-deref

Fix potential null-ptr-deref in hci_le_big_sync_established_evt(). Fixes: f777d88 (Bluetooth: ISO: Notify user space about failed bis connections) Signed-off-by: Sungwoo Kim <[email protected]> Signed-off-by: Luiz Augusto von Dentz <[email protected]>
bluez · May 2, 2024 · 5c7d0f2 · 5c7d0f2
1 parent 93ff8ae
commit 5c7d0f2
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
@@ -7069,6 +7069,8 @@ static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
 			u16 handle = le16_to_cpu(ev->bis[i]);
 
 			bis = hci_conn_hash_lookup_handle(hdev, handle);
+			if (!bis)
+				continue;
 
 			set_bit(HCI_CONN_BIG_SYNC_FAILED, &bis->flags);
 			hci_connect_cfm(bis, ev->status);