diff --git a/drivers/usb/dwc_otg_310/dwc_otg_hcd.c b/drivers/usb/dwc_otg_310/dwc_otg_hcd.c
index 01ef21b8ec62..b4db2e44342a 100644
--- a/drivers/usb/dwc_otg_310/dwc_otg_hcd.c
+++ b/drivers/usb/dwc_otg_310/dwc_otg_hcd.c
@@ -1240,6 +1240,7 @@ static int assign_and_init_hc(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh)
 		uint32_t buf_size;
 		if (hc->ep_type != DWC_OTG_EP_TYPE_ISOC) {
 			buf_size = hcd->core_if->core_params->max_transfer_size;
+			buf_size = buf_size > 65536 ? 65536 : buf_size;
 		} else {
 			buf_size = 4096;
 		}
diff --git a/drivers/usb/dwc_otg_310/dwc_otg_hcd_queue.c b/drivers/usb/dwc_otg_310/dwc_otg_hcd_queue.c
index 8816160156e6..a291ff127eba 100644
--- a/drivers/usb/dwc_otg_310/dwc_otg_hcd_queue.c
+++ b/drivers/usb/dwc_otg_310/dwc_otg_hcd_queue.c
@@ -69,6 +69,7 @@ void dwc_otg_hcd_qh_free(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh)
 			buf_size = 4096;
 		} else {
 			buf_size = hcd->core_if->core_params->max_transfer_size;
+			buf_size = buf_size > 65536 ? 65536 : buf_size;
 		}
 		DWC_DEV_DMA_FREE(buf_size, qh->dw_align_buf,
 				 qh->dw_align_buf_dma);