Re: [PATCH v2 1/6] uaccess: Add copy_from_user_nul helper

[Steven Rostedt]

On Mon, 12 Jan 2026 15:40:53 +0000
Alice Ryhl <aliceryhl@xxxxxxxxxx> wrote:

> I'm getting the impression that strncpy_from_user() is the real problem
> here. It should append a nul byte.
> 
> That would also be a lot less error-prone than the suggested new API.
> Requiring a length of N+1 is not the most immediately-obvious API.

Should we make a strscpy_from_user() API that acts the same as strscpy()
but from user space?

-- Steve