From 6bbd0d3f0c23fc53c17409dd7476f38ae0ff0cd9 Mon Sep 17 00:00:00 2001 From: Pavel Shpakovskiy Date: Fri, 22 Aug 2025 12:20:55 +0300 Subject: Bluetooth: hci_sync: fix set_local_name race condition Function set_name_sync() uses hdev->dev_name field to send HCI_OP_WRITE_LOCAL_NAME command, but copying from data to hdev->dev_name is called after mgmt cmd was queued, so it is possible that function set_name_sync() will read old name value. This change adds name as a parameter for function hci_update_name_sync() to avoid race condition. Fixes: 6f6ff38a1e14 ("Bluetooth: hci_sync: Convert MGMT_OP_SET_LOCAL_NAME") Signed-off-by: Pavel Shpakovskiy Reviewed-by: Paul Menzel Signed-off-by: Luiz Augusto von Dentz --- include/net/bluetooth/hci_sync.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/bluetooth/hci_sync.h b/include/net/bluetooth/hci_sync.h index 5224f57f6af2..e352a4e0ef8d 100644 --- a/include/net/bluetooth/hci_sync.h +++ b/include/net/bluetooth/hci_sync.h @@ -93,7 +93,7 @@ int hci_update_class_sync(struct hci_dev *hdev); int hci_update_eir_sync(struct hci_dev *hdev); int hci_update_class_sync(struct hci_dev *hdev); -int hci_update_name_sync(struct hci_dev *hdev); +int hci_update_name_sync(struct hci_dev *hdev, const u8 *name); int hci_write_ssp_mode_sync(struct hci_dev *hdev, u8 mode); int hci_get_random_address(struct hci_dev *hdev, bool require_privacy, -- cgit v1.2.3