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Thu, 10 Dec 2020 17:17:34 -0800 (PST) MIME-Version: 1.0 References: <20201210183729.1261524-1-alex.popov@linux.com> In-Reply-To: <20201210183729.1261524-1-alex.popov@linux.com> From: Joonsoo Kim Date: Fri, 11 Dec 2020 10:17:23 +0900 Message-ID: Subject: Re: [PATCH] mm/slab: Perform init_on_free earlier To: Alexander Popov Cc: Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Linux Memory Management List , LKML , Alexander Potapenko , Dmitry Vyukov , kasan-dev@googlegroups.com, notify@kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.197669, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 2020=EB=85=84 12=EC=9B=94 11=EC=9D=BC (=EA=B8=88) =EC=98=A4=EC=A0=84 3:37, = Alexander Popov =EB=8B=98=EC=9D=B4 =EC=9E=91=EC=84=B1= : > > Currently in CONFIG_SLAB init_on_free happens too late, and heap > objects go to the heap quarantine not being erased. > > Lets move init_on_free clearing before calling kasan_slab_free(). > In that case heap quarantine will store erased objects, similarly > to CONFIG_SLUB=3Dy behavior. > > Signed-off-by: Alexander Popov > Reviewed-by: Alexander Potapenko Acked-by: Joonsoo Kim