Re: [EXTERNAL] Re: [PATCH rdma-next v2] RDMA/mana_ib: hardening: Clamp adapter capability values from MANA_IB_GET_ADAPTER_CAP

[Jason Gunthorpe]

On Sat, Mar 21, 2026 at 12:56:39AM +0000, Long Li wrote:

> How we rephrase this in this way: the driver should not corrupt or
> overflow other parts of the kernel if its device is misbehaving (or
> has a bug).

If we are going to do this CC hardening stuff I think I want to see a
more comphrensive approach, like if we detect an attack then the
kernel instantly crashes or something. Or at least an approach in
general agreed to by the CC and kernel community.

Igoring the issue and continuing seems just wrong.

This sprinkling of random checks in this series doesn't feel
comprehensive or cohesive to me.

Jason