Re: [PATCH v2] slab: Add POISON_POINTER_DELTA to ZERO_SIZE_PTR

From	Christoph Lameter <cl@linux.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2] slab: Add POISON_POINTER_DELTA to ZERO_SIZE_PTR
Date	2016-11-18 19:40 +0100
Message-ID	<sEWeS-2n0-5@gated-at.bofh.it> (permalink)
References	<sErE6-7my-21@gated-at.bofh.it> <sEVst-1L1-5@gated-at.bofh.it> <sEVCa-1Ow-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On Fri, 18 Nov 2016, Kees Cook wrote:
> In this case, what about the original < ZERO_SIZE_PTR check Michael
> suggested? At least the one use in usercopy.c needs to be fixed, but
> otherwise, it should be fine?

Looks like it.

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[PATCH v2] slab: Add POISON_POINTER_DELTA to ZERO_SIZE_PTR Michael Ellerman <mpe@ellerman.id.au> - 2016-11-17 11:00 +0100
  Re: [PATCH v2] slab: Add POISON_POINTER_DELTA to ZERO_SIZE_PTR Kees Cook <keescook@chromium.org> - 2016-11-17 21:10 +0100
  Re: [PATCH v2] slab: Add POISON_POINTER_DELTA to ZERO_SIZE_PTR Christoph Lameter <cl@linux.com> - 2016-11-18 18:50 +0100
    Re: [PATCH v2] slab: Add POISON_POINTER_DELTA to ZERO_SIZE_PTR Kees Cook <keescook@chromium.org> - 2016-11-18 19:00 +0100
      Re: [PATCH v2] slab: Add POISON_POINTER_DELTA to ZERO_SIZE_PTR Christoph Lameter <cl@linux.com> - 2016-11-18 19:40 +0100

csiph-web