Re: [PATCH 5/7] rust: file: add `Kuid` wrapper

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On Wed, Nov 29, 2023 at 01:12:17PM +0000, Alice Ryhl wrote:

> diff --git a/rust/helpers.c b/rust/helpers.c
> index fd633d9db79a..58e3a9dff349 100644
> --- a/rust/helpers.c
> +++ b/rust/helpers.c
> @@ -142,6 +142,51 @@ void rust_helper_put_task_struct(struct task_struct *t)
>  }
>  EXPORT_SYMBOL_GPL(rust_helper_put_task_struct);
>  
> +kuid_t rust_helper_task_uid(struct task_struct *task)
> +{
> +	return task_uid(task);
> +}
> +EXPORT_SYMBOL_GPL(rust_helper_task_uid);
> +
> +kuid_t rust_helper_task_euid(struct task_struct *task)
> +{
> +	return task_euid(task);
> +}
> +EXPORT_SYMBOL_GPL(rust_helper_task_euid);

Aren't these like ideal speculation gadgets? And shouldn't we avoid
functions like this for exactly that reason?





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