[linux-morello] Re: [PATCH 1/9] linux/user_ptr.h: Introduce uaccess-related helpers

On 24/03/2023 16:20, Kevin Brodsky wrote:

+bool check_user_ptr_read(void __user *ptr, size_t len); +bool check_user_ptr_write(void __user *ptr, size_t len); +bool check_user_ptr_rw(void __user *ptr, size_t len);

Hi Kevin,

I've been testing your patch with some explicit checking and I see that this may not work in every situation. In some cases the capability to be checked has a const qualifier, resulting in a compiler error when passsing it along to one of these.

Best, Luca