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[23.128.96.18]) by mx.google.com with ESMTP id cw27si2999082edb.289.2020.04.29.01.02.53; Wed, 29 Apr 2020 01:03:17 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b=hlwP5D3R; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726705AbgD2IBK (ORCPT + 99 others); Wed, 29 Apr 2020 04:01:10 -0400 Received: from mout.web.de ([212.227.17.12]:50205 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726175AbgD2IBK (ORCPT ); Wed, 29 Apr 2020 04:01:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1588147254; bh=9QDM0Gu4JTamtmtUcXKNKff1o8EUfWMQ4dR3JBPTuVM=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=hlwP5D3Rv0lACcuTGQbAwApX8J1jXiab9t61Z8jcduuZM3VJWtJZ6tz/Agg6rphny lpfDfvU3kHQjmvHjnCrXjVFyFPsVroZgvmbinNIYKqABqIO3N/umY7L8u1/+89fRSB JAgYjNMv5cBuIO9OQYnqrbVsAZoMMlnqhGOwb9MI= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([93.133.72.72]) by smtp.web.de (mrweb101 [213.165.67.124]) with ESMTPSA (Nemesis) id 0MFtH8-1jQtoe0vx8-00Er1F; Wed, 29 Apr 2020 10:00:54 +0200 Subject: Re: mm/slub: do not place freelist pointer to middle of object if redzone is on To: Changbin Du , linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Andrew Morton , Christoph Lameter , David Rientjes , Joonsoo Kim , Kees Cook , Pekka Enberg , Waiman Long References: <20200425235105.sye7fsbndbv24b46@mail.google.com> <20200428231855.5czf4penpbowliz6@mail.google.com> 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: Wed, 29 Apr 2020 10:00:52 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <20200428231855.5czf4penpbowliz6@mail.google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB X-Provags-ID: V03:K1:rzMxGYTtGgAI8tT2Xt3UGt8m5LySzn7oR3wcK87V29rNqnKiTWF 8iburajuA7iwAdpJ+xj7Gm46wUOgbEBz0CUDEuzir3dMyEC4OvotNdwhgW9/7yCD196JWRK JixGyRIkGu+vCrSOzjgDKVMgqIMa6G90lcvONEzZPLk6XJ8fVQ2laz1wCWOfRZeNzb2OzYG yNOFGzhkCKUbn/Yo0fnRw== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:0QUR8JtCDyI=:C0Kr+x1qj3GNq44pAzSNBY cwmOEhz0tOgidlPXFZ2ahpIf5JXpfTzjb0tJf6ovI5xGnYzgWKa+vvlAKQCdNLBErfhVKluau /qEXTmjiB4dtrwFto1buf2P021eUm9h6H0Qzk9kNL09mRsxEXVT69F/UgVp1qiu7pfFRbnSY+ VOfLl5U9olWGMfL0F7B5FmRnzxaC1gPHVJSAFXGrRoVrgqSBt0P6sG7//XJvGwyvKOuM5qSWX NOD2uHEp0SftSnlknP0aAp8iV0lIbyWHkg8OTAnRBq5xpEqb2605CuTMngWQrV0+daTr3C2Os CG8Dt9DCZjp0GSQydxQgj/uMvKO8jqFJi6y2w3zBFZ+HRZ20bUQ4H3IjpqjpU7hGBUbZHim5w GfO8d0QC4l5BUP0X3OhraDSFjIZYl1AujN41XwOHA9nK7eAtfksOk1sz21v6dzEi/jarNimxA 0NI91CgZXCuD96yn/ATwQnjMUZcPVBkPztfF8peBAusB2ytX4W/yhzW36oVcBjgzFhPLocHb3 i/NQHwzG6Wt1YXXWs5HEJWYreDwb5yGgCfZYCVP9nbtROUtM1TqxmsHdQavIz43wtgRV4U0gZ dabq85mVN4w8WsowgsgbVZuS4mIArGHspb+RB2WVGI4G/uxEfTNZ4HoGSP27bhSU4spNTiw83 y00PXBthWPqvy+DiOdd5a8k6SpVDfanH9bdBlj8qmCbLC2jH7mimtqoOCanxDE0ypHMGveI+b o1vNLbzKmfMO6wFJgt33B2mQnVk7JS5kN9NV7rhdV8dakgLYq8nOGMxmRI1fussXeqfXxC0yY pwJPyCSN/H1r9QucB4PuqvUKrNuFtB2uuqc1BCOPAGG2K+zFpq3voEVd8JtZxYys9F40cNGe5 bO8ekd3fl/KtUdQCPkwdNr2y3StVj7upbpypaIduA81UUyZSxyWi3Pwlpwsbol1XKbaH9Qbgz 81yF9s5US1cBF9RrIVx32sHS5CfdZEoBT99QZVfkIVhJbfP2wViigJeYehAvP28MA+J/TJe9G FnWiooC/w795Coso73luP3aoXt1L8/RDC1R+4N/5RmVaO3s7XMnlC3cmpGlolHl3T4dB+oErY kW8cPrsGK8/oEXJaPlbylPBOQ3FvJvsjRzfFj89OOFlB6UlWfFxQKvO/j6YvgpbA4fl4q4VmW xt+X0G97o4xwBEPgkZ2Uew+dTVpxk78bdeWrnqWjZhX6gh2UDivcWSsd4aTg7grG2z1U7yaFC 6bkZ7WExdrJU5/xdJ Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Waiman just posted another fix for this issue. Let's use that patch instead. With which patches should the situation be finally improved also for this software component? https://lore.kernel.org/patchwork/project/lkml/list/?submitter=21412 Regards, Markus