On Sat, 16 Nov 2024 at 13:38, David Laight <david.lai...@aculab.com> wrote: > > If __get_user() is the same as get_user() [..]
No, the problem is that it's the same from a performance angle (and
now it's actually slower), but some hacky code paths depend on
__get_user() not checking the address.
They then use that to read from either user space _or_ kernel space.
Wrong? Yes. Architecture-specific? Yes. But it sadly happens.
Linus
