From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-f200.google.com (mail-pf1-f200.google.com [209.85.210.200]) by kanga.kvack.org (Postfix) with ESMTP id 270998E0047 for ; Wed, 23 Jan 2019 17:57:49 -0500 (EST) Received: by mail-pf1-f200.google.com with SMTP id p9so2917180pfj.3 for ; Wed, 23 Jan 2019 14:57:49 -0800 (PST) Received: from mail.kernel.org (mail.kernel.org. [198.145.29.99]) by mx.google.com with ESMTPS id x74si8303366pfe.23.2019.01.23.14.57.47 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 23 Jan 2019 14:57:48 -0800 (PST) Date: Wed, 23 Jan 2019 22:57:46 +0000 From: Sasha Levin Subject: Re: [PATCH v3 1/2] mm, oom: fix use-after-free in oom_kill_process In-Reply-To: <20190121215850.221745-1-shakeelb@google.com> References: <20190121215850.221745-1-shakeelb@google.com> Message-Id: <20190123225747.8715120856@mail.kernel.org> Sender: owner-linux-mm@kvack.org List-ID: To: Sasha Levin , Shakeel Butt , Johannes Weiner Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton , David Rientjes , Tetsuo Handa , stable@kernel.orglinux-mm@kvack.orglinux-kernel@vger.kernel.org, stable@vger.kernel.org Hi, [This is an automated email] This commit has been processed because it contains a "Fixes:" tag, fixing commit: 6b0c81b3be11 mm, oom: reduce dependency on tasklist_lock. The bot has tested the following trees: v4.20.3, v4.19.16, v4.14.94, v4.9.151, v4.4.171, v3.18.132. v4.20.3: Build OK! v4.19.16: Build OK! v4.14.94: Failed to apply! Possible dependencies: 5989ad7b5ede ("mm, oom: refactor oom_kill_process()") v4.9.151: Build OK! v4.4.171: Build OK! v3.18.132: Build OK! How should we proceed with this patch? -- Thanks, Sasha From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68253C282C2 for ; Wed, 23 Jan 2019 22:57:50 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1E938218AD for ; Wed, 23 Jan 2019 22:57:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="0epgLqX9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1E938218AD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 7F6A78E005D; Wed, 23 Jan 2019 17:57:49 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 7A73B8E0047; Wed, 23 Jan 2019 17:57:49 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 583768E005D; Wed, 23 Jan 2019 17:57:49 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from mail-pf1-f200.google.com (mail-pf1-f200.google.com [209.85.210.200]) by kanga.kvack.org (Postfix) with ESMTP id 270998E0047 for ; Wed, 23 Jan 2019 17:57:49 -0500 (EST) Received: by mail-pf1-f200.google.com with SMTP id p9so2917180pfj.3 for ; Wed, 23 Jan 2019 14:57:49 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:dkim-signature:date:from:to:to:to:cc:cc:cc:cc:cc :cc:cc:cc:cc:subject:in-reply-to:references:message-id; bh=eJ2UE7TMVX07gqbzPGgBnbf4NCCDIH3t0TlJkTzD02M=; b=n09GS4HrVKI+dVfzvPZt6BKMqNcu5oQtTB1imv0e3V50JZQi/0FY8BbUsfZK5Lng2F FVKa7fpcWu5XAgDvku2ytcHe+cgnPUO8NGjzYLEVEmXBURJ9Rf+aQdjqji//KdmyfVky hw9nSgOwGwQ+8HNKHdWaucCAFapiTi+adhncS5uIb421AXfamLVumvqUialRPNgxkjfI tt3a0PZXBRiV5KbDE5Va3dujx3iQc8Uy6slLVFHOgtU+2Os/EG05Tk103Q9nBEl9r16d KEQ7eJ2AdduJRzG/J0XzhscXkeJy8YdS412KLypjg6/4G7KUN7hO372o6PQk9is8pLoX jg7Q== X-Gm-Message-State: AJcUukc7GzQlp2sanjWPH82HnEWfe8o4s3fKZVoCyvXCyGSXWsYOgPA9 5Il0LSfgHwiivP6sWLr7rPsJaFhpjhICNvkvwLUkSHl13RaXkd/1YnORaVe1feIncmcXkt+xCug 1OrL7wmK0HRQxbnLD7DUl51P1XLxvulG3ETA8vVCL2HQsVhN1w4ppWjWiKWr2h7nvAA== X-Received: by 2002:a17:902:d891:: with SMTP id b17mr4236356plz.80.1548284268790; Wed, 23 Jan 2019 14:57:48 -0800 (PST) X-Google-Smtp-Source: ALg8bN4+q2XtgJXJYO73pALBPi0qfjij7x/eBd8rTlDEfQ1JMSji1MY3Wmk6k4RJPgEtUPsIFXIo X-Received: by 2002:a17:902:d891:: with SMTP id b17mr4236336plz.80.1548284268077; Wed, 23 Jan 2019 14:57:48 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1548284268; cv=none; d=google.com; s=arc-20160816; b=KYQVuvbYsY+T3Eu2EM0bThD6N/81K03tHqiYiebmjTO+YIsLlnZ23dqMC0g/ZNot7J wVUwNUu7tOjLmMNda2mxEU4k4ZX00kC7ozZWjCuYzoXomxiso3J8+wAGrX3QObtFvPc6 8b6Fx2pAS7JiQeKlfYJ8Q2ay06dKkzbv/p7NvwyDAES0YxtfVqqBniSYDPAx1tAqt72e ywrcRtYXgPmL87Tdk6gMEi0XMnQdmtR9cuF0lKp1jZcl8VHXA/Yj872IYB7KZFVdXRwU ZMQDcXuUaEFQFyamXC10fJvxYSrdSjBcqbzAzD8Px+au/b7NsJK04hQLrXRN4RvbXHwE qC1w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=message-id:references:in-reply-to:subject:cc:cc:cc:cc:cc:cc:cc:cc :cc:to:to:to:from:date:dkim-signature; bh=eJ2UE7TMVX07gqbzPGgBnbf4NCCDIH3t0TlJkTzD02M=; b=G2gqpVl311UfcKp8BT7tkKzam3BDeLk+BaI1I9lv6kyy+uWZwuF3nZNpMtYlI9Kls+ oUi8PV0AZub0FyZy+A8bz5JjwTigTlLGgdvZig3ecXetgs5fqZDXtnz6cXHgt4AhmGRY Q+nc2V/947bR46dBFwYScbvAz9dEGZZu3hd8SfMdqWUY++VwgbD2fjpgBnrKFibbXVl2 3SwyMRw7uQ4kChlSfUYd7SYRdgstKuepdqaU/Kt08OSequgK+YvQ14VZTUCdFqx0bVqC N2jFbuwObCLPJmZCh4WDs+I9/0jZYhTKdBlwGZlScj6hX0LHfODko4b9cYhwkmYlbviP 6/4A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=0epgLqX9; spf=pass (google.com: domain of sashal@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=sashal@kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from mail.kernel.org (mail.kernel.org. [198.145.29.99]) by mx.google.com with ESMTPS id x74si8303366pfe.23.2019.01.23.14.57.47 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 23 Jan 2019 14:57:48 -0800 (PST) Received-SPF: pass (google.com: domain of sashal@kernel.org designates 198.145.29.99 as permitted sender) client-ip=198.145.29.99; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=0epgLqX9; spf=pass (google.com: domain of sashal@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=sashal@kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from localhost (unknown [23.100.24.84]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8715120856; Wed, 23 Jan 2019 22:57:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548284267; bh=oLNS/nrnztPm1VAepN8hd9okW6w7EfKR11vWYHLQuUg=; h=Date:From:To:To:To:Cc:Cc:Cc:Cc:Cc:Cc:Cc:Cc:Cc:Subject:In-Reply-To: References:From; b=0epgLqX9XWIjQPs9OkvZWSnPpOKZJgsOnY6EJNwpLUugRbNAsfJ1QpzXIPInOfKR9 1g1uEZtMCeJu9W8kdeYqNCOU1Yb02bxwAm5utKz6dztolXYh+lk7Xp12RcWJxWIB0e U9pM8ZLIKoO4r6zrOMsBuZ1aJQjl3kyJY2Lp4/EU= Date: Wed, 23 Jan 2019 22:57:46 +0000 From: Sasha Levin To: Sasha Levin To: Shakeel Butt To: Johannes Weiner , Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Cc: Andrew Morton Cc: David Rientjes Cc: Johannes Weiner Cc: Tetsuo Handa Cc: stable@kernel.org Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Subject: Re: [PATCH v3 1/2] mm, oom: fix use-after-free in oom_kill_process In-Reply-To: <20190121215850.221745-1-shakeelb@google.com> References: <20190121215850.221745-1-shakeelb@google.com> Message-Id: <20190123225747.8715120856@mail.kernel.org> 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: Content-Type: text/plain; charset="UTF-8" Message-ID: <20190123225746.DWVZuAQLmJ4oJWIT4RgybPOEd0E2UBXwSZop9Q5kg6E@z> Hi, [This is an automated email] This commit has been processed because it contains a "Fixes:" tag, fixing commit: 6b0c81b3be11 mm, oom: reduce dependency on tasklist_lock. The bot has tested the following trees: v4.20.3, v4.19.16, v4.14.94, v4.9.151, v4.4.171, v3.18.132. v4.20.3: Build OK! v4.19.16: Build OK! v4.14.94: Failed to apply! Possible dependencies: 5989ad7b5ede ("mm, oom: refactor oom_kill_process()") v4.9.151: Build OK! v4.4.171: Build OK! v3.18.132: Build OK! How should we proceed with this patch? -- Thanks, Sasha