diff options
Diffstat (limited to 'libusb/core.c')
| -rw-r--r-- | libusb/core.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/libusb/core.c b/libusb/core.c index 228f898..009d0c8 100644 --- a/libusb/core.c +++ b/libusb/core.c @@ -737,12 +737,13 @@ void usbi_disconnect_device(struct libusb_device *dev) * to the discovered device list. */ int usbi_sanitize_device(struct libusb_device *dev) { - int r; uint8_t num_configurations; - r = usbi_device_cache_descriptor(dev); - if (r < 0) - return r; + if (dev->device_descriptor.bLength != LIBUSB_DT_DEVICE_SIZE || + dev->device_descriptor.bDescriptorType != LIBUSB_DT_DEVICE) { + usbi_err(DEVICE_CTX(dev), "invalid device descriptor"); + return LIBUSB_ERROR_IO; + } num_configurations = dev->device_descriptor.bNumConfigurations; if (num_configurations > USB_MAXCONFIG) { |