struct usb_os_desc_header *h, void *data,
unsigned len, void *priv)
{
struct ffs_function *func = priv;
u8 length = 0;
switch (type) {
...
ext_prop->type = le32_to_cpu(desc->dwPropertyDataType);
ext_prop->name_len = le16_to_cpu(desc->wPropertyNameLength);
ext_prop->data_len = le32_to_cpu(*(u32 *)
usb_ext_prop_data_len_ptr(data, ext_prop->name_len));
length = ext_prop->name_len + ext_prop->data_len + 14;
length is almost certain not able to hold the correct size if name_len and data_len are not small. considering that name_len comes from le16 and data_len comes from le32, it seems likely that they won't always be trivially small.