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h=X-UI-Sender-Class:To:Cc:Subject:From:Date; b=M4OCk7h8VaZAvpEVeo/e38GXnm5iumxiqS4WqvuCxA5WNmRMsyLfE5wicRt/VUPo/ 9k7euKr1j8sRHhsXWgEyVG9JizC6XZl/ED+x6No5uhkRKcYaY4EJNaUFW+1RNI/mmJ rvRhHNZbM4v2dR4DnGq2jEL7rD+AASnum8o8jVsQ= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([78.49.160.204]) by smtp.web.de (mrweb003 [213.165.67.108]) with ESMTPSA (Nemesis) id 0MbQLE-1jj0Id3TzY-00InJ6; Sat, 25 Apr 2020 22:24:47 +0200 To: Changbin Du , Andrew Morton , linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Christoph Lameter , David Rientjes , Joonsoo Kim , Kees Cook , Pekka Enberg Subject: Re: [PATCH] mm/slub: do not place freelist pointer to middle of object if redzone is on From: Markus Elfring Autocrypt: addr=Markus.Elfring@web.de; prefer-encrypt=mutual; keydata= mQINBFg2+xABEADBJW2hoUoFXVFWTeKbqqif8VjszdMkriilx90WB5c0ddWQX14h6w5bT/A8 +v43YoGpDNyhgA0w9CEhuwfZrE91GocMtjLO67TAc2i2nxMc/FJRDI0OemO4VJ9RwID6ltwt mpVJgXGKkNJ1ey+QOXouzlErVvE2fRh+KXXN1Q7fSmTJlAW9XJYHS3BDHb0uRpymRSX3O+E2 lA87C7R8qAigPDZi6Z7UmwIA83ZMKXQ5stA0lhPyYgQcM7fh7V4ZYhnR0I5/qkUoxKpqaYLp YHBczVP+Zx/zHOM0KQphOMbU7X3c1pmMruoe6ti9uZzqZSLsF+NKXFEPBS665tQr66HJvZvY GMDlntZFAZ6xQvCC1r3MGoxEC1tuEa24vPCC9RZ9wk2sY5Csbva0WwYv3WKRZZBv8eIhGMxs rcpeGShRFyZ/0BYO53wZAPV1pEhGLLxd8eLN/nEWjJE0ejakPC1H/mt5F+yQBJAzz9JzbToU 5jKLu0SugNI18MspJut8AiA1M44CIWrNHXvWsQ+nnBKHDHHYZu7MoXlOmB32ndsfPthR3GSv jN7YD4Ad724H8fhRijmC1+RpuSce7w2JLj5cYj4MlccmNb8YUxsE8brY2WkXQYS8Ivse39MX BE66MQN0r5DQ6oqgoJ4gHIVBUv/ZwgcmUNS5gQkNCFA0dWXznQARAQABtCZNYXJrdXMgRWxm cmluZyA8TWFya3VzLkVsZnJpbmdAd2ViLmRlPokCVAQTAQgAPhYhBHDP0hzibeXjwQ/ITuU9 Figxg9azBQJYNvsQAhsjBQkJZgGABQsJCAcCBhUICQoLAgQWAgMBAh4BAheAAAoJEOU9Figx g9azcyMP/iVihZkZ4VyH3/wlV3nRiXvSreqg+pGPI3c8J6DjP9zvz7QHN35zWM++1yNek7Ar OVXwuKBo18ASlYzZPTFJZwQQdkZSV+atwIzG3US50ZZ4p7VyUuDuQQVVqFlaf6qZOkwHSnk+ CeGxlDz1POSHY17VbJG2CzPuqMfgBtqIU1dODFLpFq4oIAwEOG6fxRa59qbsTLXxyw+PzRaR LIjVOit28raM83Efk07JKow8URb4u1n7k9RGAcnsM5/WMLRbDYjWTx0lJ2WO9zYwPgRykhn2 sOyJVXk9xVESGTwEPbTtfHM+4x0n0gC6GzfTMvwvZ9G6xoM0S4/+lgbaaa9t5tT/PrsvJiob kfqDrPbmSwr2G5mHnSM9M7B+w8odjmQFOwAjfcxoVIHxC4Cl/GAAKsX3KNKTspCHR0Yag78w i8duH/eEd4tB8twcqCi3aCgWoIrhjNS0myusmuA89kAWFFW5z26qNCOefovCx8drdMXQfMYv g5lRk821ZCNBosfRUvcMXoY6lTwHLIDrEfkJQtjxfdTlWQdwr0mM5ye7vd83AManSQwutgpI q+wE8CNY2VN9xAlE7OhcmWXlnAw3MJLW863SXdGlnkA3N+U4BoKQSIToGuXARQ14IMNvfeKX NphLPpUUnUNdfxAHu/S3tPTc/E/oePbHo794dnEm57LuuQINBFg2+xABEADZg/T+4o5qj4cw nd0G5pFy7ACxk28mSrLuva9tyzqPgRZ2bdPiwNXJUvBg1es2u81urekeUvGvnERB/TKekp25 4wU3I2lEhIXj5NVdLc6eU5czZQs4YEZbu1U5iqhhZmKhlLrhLlZv2whLOXRlLwi4jAzXIZAu 76mT813jbczl2dwxFxcT8XRzk9+dwzNTdOg75683uinMgskiiul+dzd6sumdOhRZR7YBT+xC wzfykOgBKnzfFscMwKR0iuHNB+VdEnZw80XGZi4N1ku81DHxmo2HG3icg7CwO1ih2jx8ik0r riIyMhJrTXgR1hF6kQnX7p2mXe6K0s8tQFK0ZZmYpZuGYYsV05OvU8yqrRVL/GYvy4Xgplm3 DuMuC7/A9/BfmxZVEPAS1gW6QQ8vSO4zf60zREKoSNYeiv+tURM2KOEj8tCMZN3k3sNASfoG fMvTvOjT0yzMbJsI1jwLwy5uA2JVdSLoWzBD8awZ2X/eCU9YDZeGuWmxzIHvkuMj8FfX8cK/ 2m437UA877eqmcgiEy/3B7XeHUipOL83gjfq4ETzVmxVswkVvZvR6j2blQVr+MhCZPq83Ota xNB7QptPxJuNRZ49gtT6uQkyGI+2daXqkj/Mot5tKxNKtM1Vbr/3b+AEMA7qLz7QjhgGJcie qp4b0gELjY1Oe9dBAXMiDwARAQABiQI8BBgBCAAmFiEEcM/SHOJt5ePBD8hO5T0WKDGD1rMF Alg2+xACGwwFCQlmAYAACgkQ5T0WKDGD1rOYSw/+P6fYSZjTJDAl9XNfXRjRRyJSfaw6N1pA Ahuu0MIa3djFRuFCrAHUaaFZf5V2iW5xhGnrhDwE1Ksf7tlstSne/G0a+Ef7vhUyeTn6U/0m +/BrsCsBUXhqeNuraGUtaleatQijXfuemUwgB+mE3B0SobE601XLo6MYIhPh8MG32MKO5kOY hB5jzyor7WoN3ETVNQoGgMzPVWIRElwpcXr+yGoTLAOpG7nkAUBBj9n9TPpSdt/npfok9ZfL /Q+ranrxb2Cy4tvOPxeVfR58XveX85ICrW9VHPVq9sJf/a24bMm6+qEg1V/G7u/AM3fM8U2m tdrTqOrfxklZ7beppGKzC1/WLrcr072vrdiN0icyOHQlfWmaPv0pUnW3AwtiMYngT96BevfA qlwaymjPTvH+cTXScnbydfOQW8220JQwykUe+sHRZfAF5TS2YCkQvsyf7vIpSqo/ttDk4+xc Z/wsLiWTgKlih2QYULvW61XU+mWsK8+ZlYUrRMpkauN4CJ5yTpvp+Orcz5KixHQmc5tbkLWf x0n1QFc1xxJhbzN+r9djSGGN/5IBDfUqSANC8cWzHpWaHmSuU3JSAMB/N+yQjIad2ztTckZY pwT6oxng29LzZspTYUEzMz3wK2jQHw+U66qBFk8whA7B2uAU1QdGyPgahLYSOa4XAEGb6wbI FEE= Message-ID: Date: Sat, 25 Apr 2020 22:24:45 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-GB X-Provags-ID: V03:K1:1mwfetGZNOZtlsPji7sJNMLFJWaqEpHeX5Jbd6dLkiTQ1DNZsoF AfnC79mNI95b3deYaw7R48gsJaFTPxtVjvoaorIAMdgXQ7yVA303Bj8Lrl2HJwctyTOibpn 16JR+mvEODTkwu/0XwKNDId8fC0Jz47jVhiKWDhUX0b6jmGL/9XEh4yDFeHu/kfNWVM5XD/ jAr7lu0QiKu9P1qy+ztkg== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:JvCTt5YtcBE=:NiVQu+yrCgNrDWiFbvLgcw yyzo5GdjJNHr1bFTmsTEWRqLUKDvKtnDQDP3LJDaD+s3d0YNPkSyI6DnQdEQwVspyhHfVHqo+ tG/P1cgP55qau6wCtSMc+jLb2R528j3eusIbP80teCXo7KF9JeXNH5lnuq77P+V48JgFq0Lr8 vnVvJxEoC3H864TuHSxCF3kfzAiJD9mxFaQ5QgzSvHpb7WHc3TiGkNKJ8ZBtPRbDL3tJw2o5k uEFf+8YPnzZG24zK1HiNMEm4/VNdLP3IvrzN643uDP7y65TAM6Jt3YnSyUlHRso5C5khzczLX vfUQ/6nBEBe/yLFuV6H9fPilbgZkO6OjyxgXlJhmlyHxO0aQO2yGLNyAOWmZrB1PZVxoaRH8a CFe+xmhUeguF7xqqHMsX/Ji1WJ2gmj7LyEMeJOYZC6NkZdGnDUZUa8CmD7hvIXzwXEAwTMGF0 BsSoFRVMOIw9tBgPOAyy0m+39c8bm3kgc12tV9v4BydDmjqG1j0tb5NsrTQ8xvi57Ih7azg5K mEfNJttbwKqbECT3RCndrF7P8+Mtc2iOT5m11LwB25+MEoR/o5uzG6LDKGovTLLhpz9hXdLzJ SfhFERkryvTFA5LKBUZ1AhZAdLKyGXkxPHHW3A/2bKvO0f8Mk8vF9vq1Y09IRU2bVOwP004yo hZUUAUE6Ia6GvEUskVWJCMshjtPjzM5PgQ/IeTmy/q1Sl5vaQeGfbh6W0KdBpRsFXhZ9frROL BB8BTxh9lEFn9Xvf2gI1nt6oVURaQCZ38OZclKRFVab9NswJfnB2jK0x8N/78+jPnRd7JH6mA 97yIb9G/ErmP99Eowx9b1+fe4S5j0oneZZxiVBKcRKhiirH8CSCpCQ1zLdRmLzQG/cRnCkinX D3whHwtZHJWli3mjd81HfsVm26f3osQ2sy7qq2+KSZ6rp0aDB4VWxDQ3EVKhZ+993kRBdsmSh HXDI6qftA+h1Xvs5GZcl6eOcmdMTm4wZgwbkLCtNVNMPIGBIwPXhSpk7OT/iSlZBe/q6I72m1 uGic0+J81ca+kd9Rax1OKgCp/Nylb54LIfWXOoHFQXNQu2dh0HHuDs9qRDYhej8hQeNXFYC6P DGIxELsDiHRf4BjNfwRFQ0nOFtaGj3x4l07jALTY7ZDPxPsGyPgycKEut8ExXdeinPlFAyEW/ PGzAlzlG1p+/YpwHAs3wWedMr1m358Q7viZpQKVgtAx4535RVmn4zoRphENIgbO+Emif2IdBO MxpuZvh33AjhlIt5V Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Fixes: 3202fa62fb ("slub: relocate freelist pointer to middle of object") Will a longer commit identifier be safer for the final change description? https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?id=b2768df24ec400dd4f7fa79542f797e904812053#n183 Regards, Markus