Re: [PATCH 3/8] usb: typec: ucsi: glink: check message data sizes

[Konrad Dybcio]

On 4/16/24 04:20, Dmitry Baryshkov wrote:
> The driver gets data from the DSP firmware. Sanitize data size before
> reading corresponding message structures.
>
> Fixes: 62b5412b1f4a ("usb: typec: ucsi: add PMIC Glink UCSI driver")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> ---

I think more backstory would be beneficial here.. Does this happen often?
What are the consequences? What are the causes? Can there be one-off invalid
messages, or does that mean the firwmare has entered some unstable state?

And I suppose, if answer to the last question is "unstable state", are we
doing something incorrectly in Linux that causes it to happen?

Konrad