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=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 A509AC43381 for ; Fri, 22 Mar 2019 09:36:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7148A21917 for ; Fri, 22 Mar 2019 09:36:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727816AbfCVJgC (ORCPT ); Fri, 22 Mar 2019 05:36:02 -0400 Received: from mail-it1-f198.google.com ([209.85.166.198]:37590 "EHLO mail-it1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727658AbfCVJgC (ORCPT ); Fri, 22 Mar 2019 05:36:02 -0400 Received: by mail-it1-f198.google.com with SMTP id m70so1573587ita.2 for ; Fri, 22 Mar 2019 02:36:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=6UX/TgGDLibE8vTJYl3LV3CO8yMVAlVvPPDilbU+4Xs=; b=iMlCRtrdNMaHBZLLKTyRL5lL1NTLaGJOd9Ft7TGymRezjiELr1YtwZCmP6yHHbY6Xn 1WcrdzeHQ6SzTfuD3f+v0OJoSET1V9jYvhxyyDu3ihyyv9aaaRQkOknj05/Dj3pQQAFd E3JsR35gkaQ2ylZE12WjGOGOuhHVduU6IVEwdiALMYQxmjkk0y7ylrJj6MV4UmWUoq7m a1EOzWv+DDBbC43pu5sfac5u7LUxouHPTvSbXk5cVoNDt2iuq5ugcD9uTWPls1o92sOa +a29WwNOJcdGX3hyAXq7EiRcuGGgemihRp3sNAHs4bRdBDYAGIlN/UJqQ6mUsFoOmkl0 TiQA== X-Gm-Message-State: APjAAAX+4Xaf0LKr0A1x8B5p/xE+crHz3taqvMdDH2EJ3AutTFe2mdOq FU2qoFABn4sGl8IdzrIQ0rThkgAhBgZMlhufnuc0k4zcrNgk X-Google-Smtp-Source: APXvYqzMAvq5h5tuI8AFCrBQB9bsrog7Ubvr5HoFyyOpwxjOaS0CGLcPugujchKTBIdK8BoQ36vtRG4nBXk8UQdBEqmLQ/eiqzRQ MIME-Version: 1.0 X-Received: by 2002:a6b:e307:: with SMTP id u7mr6079118ioc.208.1553247361157; Fri, 22 Mar 2019 02:36:01 -0700 (PDT) Date: Fri, 22 Mar 2019 02:36:01 -0700 In-Reply-To: <000000000000601367057a095de4@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000035d0e70584ab952b@google.com> Subject: Re: KASAN: use-after-free Read in get_mem_cgroup_from_mm From: syzbot To: aarcange@redhat.com, akpm@linux-foundation.org, cgroups@vger.kernel.org, dvyukov@google.com, hannes@cmpxchg.org, hughd@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mgorman@suse.de, mhocko@kernel.org, peterx@redhat.com, rientjes@google.com, rppt@linux.ibm.com, rppt@linux.vnet.ibm.com, syzkaller-bugs@googlegroups.com, vbabka@suse.cz, vdavydov.dev@gmail.com, willy@infradead.org, zhongjiang@huawei.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Bisection is inconclusive: the first bad commit could be any of: 2c43838c sched/isolation: Enable CONFIG_CPU_ISOLATION=y by default bf29cb23 sched/isolation: Make CONFIG_NO_HZ_FULL select CONFIG_CPU_ISOLATION d94d1053 sched/isolation: Document boot parameters dependency on CONFIG_CPU_ISOLATION=y 4c470317 Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1592b037200000 start commit: 0072a0c1 git tree: upstream dashboard link: https://syzkaller.appspot.com/bug?extid=cbb52e396df3e565ab02 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12835e25400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=172fa5a3400000 For information about bisection process see: https://goo.gl/tpsmEJ#bisection