On Fri, Sep 29, 2023 at 09:11:58PM +0000, Sami Tolvanen wrote: > ARCH_MMAP_RND_BITS_MAX is based on Sv39, which leaves a few > potential bits of mmap randomness on the table if we end up enabling > 4/5-level paging. Update mmap_rnd_bits_max to take the final address > space size into account. This increases mmap_rnd_bits_max from 24 to > 33 with Sv48/57. > > Signed-off-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx> I like this. Is RISCV the only arch where the paging level can be chosen at boot time? Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
