Messages in this thread | | | Date | Fri, 15 Jul 2016 12:05:50 +1000 | From | Balbir Singh <> | Subject | Re: [PATCH v2 11/11] mm: SLUB hardened usercopy support |
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On Wed, Jul 13, 2016 at 02:56:04PM -0700, Kees Cook wrote: > Under CONFIG_HARDENED_USERCOPY, this adds object size checking to the > SLUB allocator to catch any copies that may span objects. Includes a > redzone handling fix from Michael Ellerman. > > Based on code from PaX and grsecurity. > > Signed-off-by: Kees Cook <keescook@chromium.org> > --- > init/Kconfig | 1 + > mm/slub.c | 36 ++++++++++++++++++++++++++++++++++++ > 2 files changed, 37 insertions(+) > > diff --git a/init/Kconfig b/init/Kconfig > index 798c2020ee7c..1c4711819dfd 100644 > --- a/init/Kconfig > +++ b/init/Kconfig > @@ -1765,6 +1765,7 @@ config SLAB > > config SLUB > bool "SLUB (Unqueued Allocator)" > + select HAVE_HARDENED_USERCOPY_ALLOCATOR
Should this patch come in earlier from a build perspective? I think patch 1 introduces and uses __check_heap_object.
Balbir Singh.
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