We should verify the bound of the array to assure that host
may not manipulate the index to point past endpoint array.
Signed-off-by: Ma Ke <make_ruc2021@xxxxxxx>
---
drivers/usb/gadget/udc/fsl_qe_udc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index 3b1cc8fa30c8..f4e5cbd193b7 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -1959,6 +1959,8 @@ static void ch9getstatus(struct qe_udc *udc, u8 request_type, u16 value,
} else if ((request_type & USB_RECIP_MASK) == USB_RECIP_ENDPOINT) {
/* Get endpoint status */
int pipe = index & USB_ENDPOINT_NUMBER_MASK;
+ if (pipe >= USB_MAX_ENDPOINTS)
+ goto stall;
struct qe_ep *target_ep = &udc->eps[pipe];
u16 usep;
--
2.37.2
