On Mon, Nov 9, 2020 at 3:22 AM Alexandre Chartre <[email protected]> wrote: > > Extend PTI user mappings so that more kernel entry code can be executed > with the user page-table. To do so, we need to map syscall and interrupt > entry code,
Probably fine. > per cpu offsets (__per_cpu_offset, which is used some in > entry code), This likely already leaks due to vulnerable CPUs leaking address space layout info. > the stack canary, That's going to be a very tough sell.
