From 303c42901a24e3e935818bca9720f5f0f012ebd7 Mon Sep 17 00:00:00 2001
From: Conor Patrick <conorpp94@gmail.com>
Date: Mon, 15 Jul 2019 11:32:02 -0400
Subject: [PATCH] limit length of wLength

---
 targets/stm32l432/lib/usbd/usbd_hid.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/targets/stm32l432/lib/usbd/usbd_hid.c b/targets/stm32l432/lib/usbd/usbd_hid.c
index bf329119..c96436bf 100644
--- a/targets/stm32l432/lib/usbd/usbd_hid.c
+++ b/targets/stm32l432/lib/usbd/usbd_hid.c
@@ -342,6 +342,7 @@ static uint8_t  USBD_HID_Setup (USBD_HandleTypeDef *pdev,
   uint8_t *pbuf = NULL;
   uint16_t status_info = 0U;
   USBD_StatusTypeDef ret = USBD_OK;
+  req->wLength = req->wLength & 0x7f;
 
   switch (req->bmRequest & USB_REQ_TYPE_MASK)
   {
@@ -386,6 +387,7 @@ static uint8_t  USBD_HID_Setup (USBD_HandleTypeDef *pdev,
       break;
 
     case USB_REQ_GET_DESCRIPTOR:
+      req->wLength = req->wLength & 0x7f;
       if(req->wValue >> 8 == HID_REPORT_DESC)
       {
         len = MIN(HID_FIDO_REPORT_DESC_SIZE , req->wLength);