blob: 7ed09bdb2430a2e045699dccba3f1f0fbbae3131 (
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diff --git a/third_party/libusb/src/libusb/os/windows_usb.c b/third_party/libusb/src/libusb/os/windows_usb.c
index 259897e..4469992 100644
--- a/third_party/libusb/src/libusb/os/windows_usb.c
+++ b/third_party/libusb/src/libusb/os/windows_usb.c
@@ -663,6 +663,12 @@ static int windows_assign_endpoints(struct libusb_device_handle *dev_handle, int
return r;
}
+ if (iface >= conf_desc->bNumInterfaces ||
+ altsetting >= conf_desc->interface[iface].num_altsetting) {
+ usbi_dbg("interface %d, altsetting %d out of range", iface, altsetting);
+ return LIBUSB_ERROR_INVALID_PARAM;
+ }
+
if_desc = &conf_desc->interface[iface].altsetting[altsetting];
safe_free(priv->usb_interface[iface].endpoint);
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