On 11/22/2018 02:04 PM, Russell Currey wrote:
Kernel Userspace Access Prevention utilises a feature of
the Radix MMU which disallows read and write access to userspace
addresses. By utilising this, the kernel is prevented from accessing
user data from outside of trusted paths that perform pro
Kernel Userspace Access Prevention utilises a feature of
the Radix MMU which disallows read and write access to userspace
addresses. By utilising this, the kernel is prevented from accessing
user data from outside of trusted paths that perform proper safety checks,
such as copy_{to/from}_user() an
