On Tue, Oct 18, 2022 at 03:51:37PM -0700, Andrew Morton wrote: > On Tue, 18 Oct 2022 02:03:29 -0700 Kees Cook <keescook@xxxxxxxxxxxx> wrote: > > > Round up allocations with kmalloc_size_roundup() so that mempool's use > > of ksize() is always accurate and no special handling of the memory is > > needed by KASAN, UBSAN_BOUNDS, nor FORTIFY_SOURCE. > > Confused. If the special handling is not needed, why doesn't the patch > removed the no longer needed special handling? The special handling is in the ksize() implementation, so it can't be removed[1] until all the ksize()-affected users are updated to see their true allocation sizes first. [1] https://lore.kernel.org/lkml/20220923202822.2667581-16-keescook@xxxxxxxxxxxx/ -- Kees Cook
