| Message ID | tencent_E43E1B2F25E4BA5EBBEC33229E5E1BEB4B08@qq.com |
|---|---|
| State | Accepted |
| Commit | 94a60402b1c1fee5459e19387f33ab1ab5cd82d7 |
| Headers | show |
| Series | [v2] Bluetooth: Ignore too large handle values in BIG | expand |
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index a487f9df8145..3966fbc38df9 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -6893,6 +6893,10 @@ static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data, bis = hci_conn_hash_lookup_handle(hdev, handle); if (!bis) { + if (handle > HCI_CONN_HANDLE_MAX) { + bt_dev_dbg(hdev, "ignore too large handle %u", handle); + continue; + } bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY, HCI_ROLE_SLAVE, handle); if (IS_ERR(bis))
hci_le_big_sync_established_evt is necessary to filter out cases where the handle value is belonging to ida id range, otherwise ida will be erroneously released in hci_conn_cleanup. Fixes: 181a42edddf5 ("Bluetooth: Make handle of hci_conn be unique") Reported-by: syzbot+b2545b087a01a7319474@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=b2545b087a01a7319474 Signed-off-by: Edward Adam Davis <eadavis@qq.com> --- net/bluetooth/hci_event.c | 4 +++ 1 file changed, 4 insertions(+)