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Groups > linux.kernel > #1443874
| From | Balbir Singh <bsingharora@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2 11/11] mm: SLUB hardened usercopy support |
| Date | 2016-07-15 04:10 +0200 |
| Message-ID | <rV0JH-Qj-3@gated-at.bofh.it> (permalink) |
| References | <rUAmd-nH-3@gated-at.bofh.it> <rUAmd-nH-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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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[PATCH v2 11/11] mm: SLUB hardened usercopy support Kees Cook <keescook@chromium.org> - 2016-07-14 00:00 +0200
Re: [PATCH v2 11/11] mm: SLUB hardened usercopy support Balbir Singh <bsingharora@gmail.com> - 2016-07-15 04:10 +0200
Re: [PATCH v2 11/11] mm: SLUB hardened usercopy support Kees Cook <keescook@chromium.org> - 2016-07-15 06:30 +0200
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