kernel: virtio-blk: fix implicit overflow on virtio_max_dma_size

In the Linux kernel, the following vulnerability has been resolved: virtio-blk: fix implicit overflow on virtiomaxdmasize The following codes have an implicit conversion from sizet to u32: u32maxsize = sizetvirtiomaxdmasizevdev; This may lead overflow, Ex sizet4G - u320. Once virtiomaxdmasize has...