diff options
| -rw-r--r-- | drivers/usb/core/config.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 7199adccf444..a6b2cabe7930 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -424,7 +424,8 @@ static int usb_parse_configuration(struct usb_device *dev, int cfgidx, memcpy(&config->desc, buffer, USB_DT_CONFIG_SIZE); if (config->desc.bDescriptorType != USB_DT_CONFIG || - config->desc.bLength < USB_DT_CONFIG_SIZE) { + config->desc.bLength < USB_DT_CONFIG_SIZE || + config->desc.bLength > size) { dev_err(ddev, "invalid descriptor for config index %d: " "type = 0x%X, length = %d\n", cfgidx, config->desc.bDescriptorType, config->desc.bLength); |