On Mon, Apr 20, 2020 at 07:59:03PM -0700, Andrew Morton wrote: > On Mon, 23 Mar 2020 14:29:29 +0100 agordeev@xxxxxxxxxxxxx wrote: > > > It is possible to request a fixed mapping address below > > mmap_min_addr and succeed. This update adds early checks > > of mmap_min_addr and mmap_end boundaries and fixes the > > above issue. > > Does this solve any known problems? If not, what is the motivation for > the change? One can set a lowest possible address in /proc/sys/vm/mmap_min_addr and mmap below that bound nevertheless. Apart from it is wrong I am not aware of any existing issue. Thanks!
