Re: [PATCH 2/2] gpiolib: cdev: export the consumer's PID

From: Andy Shevchenko
Date: Fri Sep 09 2022 - 09:49:07 EST

+Cc: Kees

On Fri, Sep 09, 2022 at 02:13:29PM +0200, Bartosz Golaszewski wrote:
> It's useful for user-space to be able to know the PIDs of processes
> holding GPIO lines in case they have the permissions and need to kill
> them.
> Extend the gpio_v2_line_info structure with the consumer_pid field
> that's set to the PID of the user-space process or 0 if the user lives
> in the kernel.

I'm wondering if there is any security implications and this PID
can be abused.

With Best Regards,
Andy Shevchenko