stack smashing detected with 'nvme sanitize-log /dev/nvme0'

[Christoph Hellwig]

On Mon, Aug 21, 2023 at 09:11:38AM -0600, Keith Busch wrote:
> I don't think we want to bounce to kernel memory for the device to
> overwrite it. I suggest just change nvme-cli's stack allocated santize
> log to a use page aligned and sized buffer.

That assumes it actually overwrites it in that case and doesn't just
have a PRP parsing bug when there is not enough alignment.

We should be able to find out by enabling KASAN and then requiring the
larger alignment before re-running the reproducer.