Re: [syzbot] [bluetooth?] WARNING in hci_conn_del
From: Edward Adam Davis
Date: Sun Jun 16 2024 - 06:15:18 EST
please test wrn
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 603c04e27c3e
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index a487f9df8145..4130d64d9a80 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -6893,6 +6893,9 @@ 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)
+ continue;
+
bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
HCI_ROLE_SLAVE, handle);
if (IS_ERR(bis))