On Mon, Aug 17, 2020 at 09:32:10AM +0200, Christoph Hellwig wrote: > Stop providing the possibility to override the address space using > set_fs() now that there is no need for that any more. To properly > handle the TASK_SIZE_MAX checking for 4 vs 5-level page tables on > x86 a new alternative is introduced, which just like the one in > entry_64.S has to use the hardcoded virtual address bits to escape > the fact that TASK_SIZE_MAX isn't actually a constant when 5-level > page tables are enabled. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> Awesome. :) Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook