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Tue, 29 Aug 2023 13:22:37 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id SmjUNh3x7WT0WQAAMHmgww (envelope-from ); Tue, 29 Aug 2023 13:22:37 +0000 Message-ID: Date: Tue, 29 Aug 2023 15:22:37 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.14.0 From: Vlastimil Babka Subject: [GIT PULL] slab updates for 6.6 To: Linus Torvalds Cc: David Rientjes , Joonsoo Kim , Christoph Lameter , Pekka Enberg , Andrew Morton , "linux-mm@kvack.org" , LKML , patches@lists.linux.dev, Roman Gushchin , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Kees Cook Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 8AA87C0018 X-Stat-Signature: t11juxiuy1r8futg5n1cnnpmsuwnbp4y X-Rspam-User: X-HE-Tag: 1693315361-265119 X-HE-Meta: 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 2gAUV2Ef 8QyR1tCaPXpe4NTUGQGeIie15ch2QNZBNUTuYoqQohcQvFWCBcPYAMRudtb8S8wtuG6RtCeonhRKsucIexfOVGqOlCo3FjKh/JXZi457iv6WxYSR1cnFONNZN2IilSrSrpmWDBnathDs7ewv7E8/jEy/dfXvU530cmrTCeZqJgheJ4f1yuO4Fz2ybC2mrRwv8V/lRIzp2zYIrO/BPOgRWqloM3yflPn/1HJLfcKp0ZV9tjluzUzPZHG9iVSMI4M+/RkwIljgeToURgtgom4yDsrt29FLPc0r7SktYvAcUVhncG5M22SCsSwzGWKoIl1anE5p8CoBvMZyycEGpKw9+OMwUyo37e7rxeevJ1MjBz6aKZDuS4c3PZ/i+mpATeLGp4eWl/qGd8c+AOeWQGMYXlQFA5+q2AeBl99hy X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi Linus, please pull the latest slab updates from: git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git tags/slab-for-6.6 This happens to be a small one (due to summer I guess), and all hardening related. Thanks, Vlastimil ====================================== * Randomized kmalloc caches, by GONG, Ruiqi. A new opt-in hardening feature to make heap spraying harder. It creates multiple (16) copies of kmalloc caches, reducing the chance of an attacker-controllable allocation site to land in the same slab as e.g. an allocation site with use-after-free vulnerability. The selection of the copy is derived from the allocation site address, including a per-boot random seed. * Stronger typing for hardened freelists in SLUB, by Jann Horn Introduces a custom type for hardened freelist entries instead of "void *" as those are not directly dereferencable. While reviewing this, I've noticed opportunities for further cleanups in that code and added those on top. ---------------------------------------------------------------- GONG, Ruiqi (1): Randomized slab caches for kmalloc() Jann Horn (1): mm/slub: refactor freelist to use custom type Vlastimil Babka (3): mm/slub: remove redundant kasan_reset_tag() from freelist_ptr calculations mm/slub: remove freelist_dereference() Merge branch 'slab/for-6.6/random_kmalloc' into slab/for-next include/linux/percpu.h | 12 +++++++--- include/linux/slab.h | 23 +++++++++++++++++--- mm/Kconfig | 17 +++++++++++++++ mm/kfence/kfence_test.c | 7 ++++-- mm/slab.c | 2 +- mm/slab.h | 2 +- mm/slab_common.c | 49 ++++++++++++++++++++++++++++++++++++----- mm/slub.c | 58 ++++++++++++++++++++++++++++--------------------- 8 files changed, 130 insertions(+), 40 deletions(-) ~