From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Vyukov Subject: Re: KASAN: use-after-free Read in addr_handler Date: Tue, 26 Mar 2019 10:56:08 +0100 Message-ID: References: <0000000000001f5bce0584d5b095@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: Sender: netdev-owner@vger.kernel.org To: Thomas Gleixner Cc: syzbot , Alexander Duyck , amritha.nambiar@intel.com, andrew@lunn.ch, avagin@gmail.com, danielj@mellanox.com, David Miller , Doug Ledford , Dmitry Torokhov , gregory.clement@bootlin.com, jason@lakedaemon.net, jeffrey.t.kirsher@intel.com, Jason Gunthorpe , Joe Perches , Leon Romanovsky , Linux ARM , LKML , linux-rdma@vger.kernel.org, Marc Zyngier , miquel.raynal@bootlin.com, netdev , parav@mellanox.com, sebastian.hesselbarth@gmail.com, swise@opengridcomputing.com List-Id: linux-rdma@vger.kernel.org On Sun, Mar 24, 2019 at 2:21 PM Thomas Gleixner wrote: > > On Sun, 24 Mar 2019, syzbot wrote: > > > syzbot has bisected this bug to: > > > > commit 4f4c867c91e644fc9d461c8c5cf2f09d6d5bcac2 > > Author: Miquel Raynal > > Date: Tue Oct 2 08:54:16 2018 +0000 > > > > irqchip/irq-mvebu-icu: Support ICU subnodes > > Yet another bogus bisect result. Why? That code is ARM only and cannot > influence x86 by any means. >>From the bisection log it seems the process diverged to a different bug mid way ("WARNING: ODEBUG bug in netdev_freemem"). 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=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_IN_DEF_DKIM_WL 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 1F508C43381 for ; Tue, 26 Mar 2019 09:56:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E15FE20830 for ; Tue, 26 Mar 2019 09:56:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="WfoccSvR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727956AbfCZJ4Y (ORCPT ); Tue, 26 Mar 2019 05:56:24 -0400 Received: from mail-it1-f194.google.com ([209.85.166.194]:38623 "EHLO mail-it1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726111AbfCZJ4V (ORCPT ); Tue, 26 Mar 2019 05:56:21 -0400 Received: by mail-it1-f194.google.com with SMTP id m18so18880407ita.3 for ; Tue, 26 Mar 2019 02:56:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=IgKLibJ/yJtYGJ1gBJqUUq1bLh+TBe+EMq/SQLfeGEI=; b=WfoccSvR3aDEtzUUPcVQr41klURF65S67fDQFrUKV7VKDAUO4BuVKLPqjUEp9PPj1B 1eKFyil584W3zIUybTrV4GvMA1jzOMlASpL25L39oLdwYTmPdPmCuyXtkhAgep2XeeCH rsewBr0bkgVdvARA3kNo+HDG9BMfNSSRIealCYj6etn0GHEWReajNN4O5xiHHC5KWtfM qDq6iFPiyATf9XhE4m47AkOtZtKIJs0BjUK3Z2fzBCsgTFQMtaCBuV42ENRkKwsw2dAG TV+gCQoSDnEDaXz10GQhddY9GQAY6csF/P6oGbf/Z0ob1lpw8iNRtujjT/L43H+IBcI1 klHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=IgKLibJ/yJtYGJ1gBJqUUq1bLh+TBe+EMq/SQLfeGEI=; b=KGWfukR5YfCduUDj8YsZm2TRN3PQQoVvMkdMthZIoNLr2hCtFHoXSmKHHktvM3MbWe Rv1z/7cTiOVuz7cTFbil0pC4p+JUGRFiWzXpMrC9HdesBwMUGrM0c1Vuvbwm0HXpyd04 QDz+GJjihqpv7spX0vE9G7hiPOisIcdFU90nEZD+vJ3e0EWn0X0RocvY/ej3/8d5EVAQ 5HVAnR0ngYvwA8lDTo8kae1R3ATIzJxp3EkrAkD9AKKsgKldlGYyJl6eG1S4tJXjMReX /v7fEunU+vDlRPc2FQ8vDjdpEjolW+IR4gWfLrtVWN2T+Mui/9DxelGXZ8XqseQypV5e ITdw== X-Gm-Message-State: APjAAAXnQHBzeHngpZ8qlda/KiBSQ0LbOUs2S4s5Xc8ecOgTOPQYEki8 tKlM8M0lGLKCINTAC9iBd4g1SmUkpxWFNxrVudoBrA== X-Google-Smtp-Source: APXvYqxV6r5KHsENuMul9ych0mkWdDGlYL6Z7MOBFSJGu5r3f1jeKqjafSc8IFtG7TOmZEFMcRU3qVQ+EEVsCMnEFl8= X-Received: by 2002:a05:6638:211:: with SMTP id e17mr20973287jaq.35.1553594180512; Tue, 26 Mar 2019 02:56:20 -0700 (PDT) MIME-Version: 1.0 References: <0000000000001f5bce0584d5b095@google.com> In-Reply-To: From: Dmitry Vyukov Date: Tue, 26 Mar 2019 10:56:08 +0100 Message-ID: Subject: Re: KASAN: use-after-free Read in addr_handler To: Thomas Gleixner Cc: syzbot , Alexander Duyck , amritha.nambiar@intel.com, andrew@lunn.ch, avagin@gmail.com, danielj@mellanox.com, David Miller , Doug Ledford , Dmitry Torokhov , gregory.clement@bootlin.com, jason@lakedaemon.net, jeffrey.t.kirsher@intel.com, Jason Gunthorpe , Joe Perches , Leon Romanovsky , Linux ARM , LKML , linux-rdma@vger.kernel.org, Marc Zyngier , miquel.raynal@bootlin.com, netdev , parav@mellanox.com, sebastian.hesselbarth@gmail.com, swise@opengridcomputing.com, syzkaller-bugs , tyhicks@canonical.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Mar 24, 2019 at 2:21 PM Thomas Gleixner wrote: > > On Sun, 24 Mar 2019, syzbot wrote: > > > syzbot has bisected this bug to: > > > > commit 4f4c867c91e644fc9d461c8c5cf2f09d6d5bcac2 > > Author: Miquel Raynal > > Date: Tue Oct 2 08:54:16 2018 +0000 > > > > irqchip/irq-mvebu-icu: Support ICU subnodes > > Yet another bogus bisect result. Why? That code is ARM only and cannot > influence x86 by any means. >From the bisection log it seems the process diverged to a different bug mid way ("WARNING: ODEBUG bug in netdev_freemem"). 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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=IgKLibJ/yJtYGJ1gBJqUUq1bLh+TBe+EMq/SQLfeGEI=; b=q34lpUSGEzOg+XCxjLVs4f0K/6ftcqNjE77ojSAElnYrFVCUFCxGe+yaBXGYa4v2BA OjbXqSJh7engES94/3+sTwD0vDXQM2geVXsxgyZDkXoMlsr+FyW8ZI0yl5N0EmdlV7UM 3P3bzg0WNPcLxBBRu6CZhI/kLS+a3wgP90cekJgj28K7SbIfLdmzbylWxfqiqmpZSzdP j88K7nfKSYk39cSO6RhtrJDN4cZ3Z1UlHxQ9hYwzVdptsziEc8hx+9BZMZVU6EFDZ6JF UXEdT2H+nCnFAQUwS6LSv+IDUwwW+ALNRXj1FOVyBdKKviXeGdKrZ6EBLIKzqM8VLF1q mF2g== X-Gm-Message-State: APjAAAXV1A2zINwnJmt3CnVyrFXgwbMbx2EStiS7RzCTghqB6X28UiWJ na3IVTHymsF5G3HRHm2MYkljNU8HZC/SnX2W8CH5Zg== X-Google-Smtp-Source: APXvYqxV6r5KHsENuMul9ych0mkWdDGlYL6Z7MOBFSJGu5r3f1jeKqjafSc8IFtG7TOmZEFMcRU3qVQ+EEVsCMnEFl8= X-Received: by 2002:a05:6638:211:: with SMTP id e17mr20973287jaq.35.1553594180512; Tue, 26 Mar 2019 02:56:20 -0700 (PDT) MIME-Version: 1.0 References: <0000000000001f5bce0584d5b095@google.com> In-Reply-To: From: Dmitry Vyukov Date: Tue, 26 Mar 2019 10:56:08 +0100 Message-ID: Subject: Re: KASAN: use-after-free Read in addr_handler To: Thomas Gleixner X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190326_025623_485446_CB4E9767 X-CRM114-Status: GOOD ( 10.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: andrew@lunn.ch, swise@opengridcomputing.com, avagin@gmail.com, miquel.raynal@bootlin.com, parav@mellanox.com, amritha.nambiar@intel.com, linux-rdma@vger.kernel.org, gregory.clement@bootlin.com, Jason Gunthorpe , Doug Ledford , jeffrey.t.kirsher@intel.com, syzbot , sebastian.hesselbarth@gmail.com, Alexander Duyck , jason@lakedaemon.net, Marc Zyngier , syzkaller-bugs , Linux ARM , Leon Romanovsky , netdev , Dmitry Torokhov , LKML , tyhicks@canonical.com, danielj@mellanox.com, Joe Perches , David Miller Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sun, Mar 24, 2019 at 2:21 PM Thomas Gleixner wrote: > > On Sun, 24 Mar 2019, syzbot wrote: > > > syzbot has bisected this bug to: > > > > commit 4f4c867c91e644fc9d461c8c5cf2f09d6d5bcac2 > > Author: Miquel Raynal > > Date: Tue Oct 2 08:54:16 2018 +0000 > > > > irqchip/irq-mvebu-icu: Support ICU subnodes > > Yet another bogus bisect result. Why? That code is ARM only and cannot > influence x86 by any means. >From the bisection log it seems the process diverged to a different bug mid way ("WARNING: ODEBUG bug in netdev_freemem"). _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel