[PATCH v3] nvme: fix memory corruption for passthrough metadata

[Christoph Hellwig]

On Wed, Oct 11, 2023 at 10:56:44AM +0530, Kanchan Joshi wrote:
> > Fixing just a subset of these problems is pointless.  If people want
> > to use metadata on vendor specific commands they need to work with
> > NVMe to figure out a generic way to pass the length.
> 
> Do you suggest that vendor specific opcodes should be blocked here?

We have to block everything that we can't calculate the length for.
Otherwise you still leave the hole open.