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From: Kees Cook <keescook@chromium.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Kees Cook <keescook@chromium.org>, Marco Elver <elver@google.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Christoph Lameter <cl@linux.com>,
	Pekka Enberg <penberg@kernel.org>,
	David Rientjes <rientjes@google.com>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Vlastimil Babka <vbabka@suse.cz>, Roman Gushchin <guro@fb.com>,
	linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-mm@kvack.org
Subject: [PATCH v2 0/3] Actually fix freelist pointer vs redzoning
Date: Fri,  9 Oct 2020 12:54:08 -0700	[thread overview]
Message-ID: <20201009195411.4018141-1-keescook@chromium.org> (raw)

v2:
- add additional clean-up patches
- add Tested-by
v1: https://lore.kernel.org/lkml/20201008233443.3335464-1-keescook@chromium.org

This fixes redzoning vs the freelist pointer (both for middle-position
and very small caches). Both are "theoretical" fixes, in that I see no
evidence of such small-sized caches actually be used in the kernel, but
that's no reason to let the bugs continue to exist. :)

Thanks!

-Kees


Kees Cook (3):
  mm/slub: Clarify verification reporting
  mm/slub: Fix redzoning for small allocations
  mm/slub: Actually fix freelist pointer vs redzoning

 Documentation/vm/slub.rst | 10 +++++-----
 mm/slub.c                 | 36 +++++++++++++++---------------------
 2 files changed, 20 insertions(+), 26 deletions(-)

-- 
2.25.1


             reply	other threads:[~2020-10-09 19:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-09 19:54 Kees Cook [this message]
2020-10-09 19:54 ` [PATCH v2 1/3] mm/slub: Clarify verification reporting Kees Cook
2020-10-13 16:13   ` Vlastimil Babka
2020-10-09 19:54 ` [PATCH v2 2/3] mm/slub: Fix redzoning for small allocations Kees Cook
2020-10-12  8:01   ` Christopher Lameter
2020-10-12 20:43     ` Kees Cook
2020-10-09 19:54 ` [PATCH v2 3/3] mm/slub: Actually fix freelist pointer vs redzoning Kees Cook
2020-10-13 16:44   ` Vlastimil Babka

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