Re: [PATCH v2 0/2] gpiolib: don't allow user-space to crash the kernel with hot-unplugs

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Mon, Nov 28, 2022 at 6:52 PM Bartosz Golaszewski <brgl@xxxxxxxx> wrote:

> From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
>
> This is a second iteration of the changes that aim at fixing the situation
> in which the user-space can provoke a NULL-pointer derefence in the kernel
> when a GPIO device that's in use by user-space is removed.
>
> v1 -> v2:
> - add missing gdev->chip checks in patch 1/2
> - add a second patch that protects the structures that can be accessed
>   by user-space calls against concurrent removal

Thanks for looking into this.
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
for the series.

Yours,
Linus Walleij