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Thu, 01 Oct 2020 12:48:09 -0700 (PDT) Received: from [10.9.0.22] ([185.248.161.177]) by smtp.gmail.com with ESMTPSA id j10sm10435948wrn.2.2020.10.01.12.48.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 01 Oct 2020 12:48:07 -0700 (PDT) Reply-To: alex.popov@linux.com Subject: Re: [PATCH RFC v2 2/6] mm/slab: Perform init_on_free earlier To: Alexander Potapenko Cc: Kees Cook , Jann Horn , Will Deacon , Andrey Ryabinin , Dmitry Vyukov , Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Masahiro Yamada , Masami Hiramatsu , Steven Rostedt , Peter Zijlstra , Krzysztof Kozlowski , Patrick Bellasi , David Howells , Eric Biederman , Johannes Weiner , Laura Abbott , Arnd Bergmann , Greg Kroah-Hartman , Daniel Micay , Andrey Konovalov , Matthew Wilcox , Pavel Machek , Valentin Schneider , kasan-dev , Linux Memory Management List , Kernel Hardening , LKML , notify@kernel.org References: <20200929183513.380760-1-alex.popov@linux.com> <20200929183513.380760-3-alex.popov@linux.com> From: Alexander Popov Autocrypt: addr=alex.popov@linux.com; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit 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: On 30.09.2020 15:50, Alexander Potapenko wrote: > On Tue, Sep 29, 2020 at 8:35 PM Alexander Popov wrote: >> >> Currently in CONFIG_SLAB init_on_free happens too late, and heap >> objects go to the heap quarantine being dirty. Lets move memory >> clearing before calling kasan_slab_free() to fix that. >> >> Signed-off-by: Alexander Popov > Reviewed-by: Alexander Potapenko Thanks for the review, Alexander! Do you have any idea how this patch series relates to Memory Tagging support that is currently developed? Best regards, Alexander