Messages in this thread | | | From | Kees Cook <> | Subject | [PATCH v4 0/3] Actually fix freelist pointer vs redzoning | Date | Tue, 8 Jun 2021 11:39:52 -0700 |
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v4: - remove redundant size check v3: https://lore.kernel.org/lkml/20201015033712.1491731-1-keescook@chromium.org v2: https://lore.kernel.org/lkml/20201009195411.4018141-1-keescook@chromium.org 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, especially since people doing local development keep tripping over it. :)
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/slab_common.c | 3 +-- mm/slub.c | 36 +++++++++++++++--------------------- 3 files changed, 21 insertions(+), 28 deletions(-)
-- 2.25.1
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