Re: [PATCH v3 0/5] platform/chrome: Fix a possible UAF via revocable

[Krzysztof Kozlowski <krzk@kernel.org>]

On 12/09/2025 10:17, Tzung-Bi Shih wrote:
> This is a follow-up series of [1].  It tries to fix a possible UAF in the
> fops of cros_ec_chardev after the underlying protocol device has gone by
> using revocable.
> 
> The 1st patch introduces the revocable which is an implementation of ideas
> from the talk [2].
> 
> The 2nd and 3rd patches add test cases for revocable in Kunit and selftest.
> 
> The 4th patch converts existing protocol devices to resource providers
> of cros_ec_device.
> 
> The 5th patch converts cros_ec_chardev to a resource consumer of
> cros_ec_device to fix the UAF.
> 
> [1] https://lore.kernel.org/chrome-platform/20250721044456.2736300-6-tzungbi@kernel.org/
> [2] https://lpc.events/event/17/contributions/1627/
> 
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>

Thanks for the work. Just a note, please start using b4, so above Cc
will be propagated to all patches. Folks above received only the cover
letter...

Best regards,
Krzysztof