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=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS,URIBL_BLOCKED,USER_IN_DEF_DKIM_WL 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 2AEC0C10F03 for ; Fri, 22 Mar 2019 12:31:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F280F218B0 for ; Fri, 22 Mar 2019 12:31:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="WDKi5kGg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390310AbfCVMQ7 (ORCPT ); Fri, 22 Mar 2019 08:16:59 -0400 Received: from mail-it1-f196.google.com ([209.85.166.196]:38667 "EHLO mail-it1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390293AbfCVMQ4 (ORCPT ); Fri, 22 Mar 2019 08:16:56 -0400 Received: by mail-it1-f196.google.com with SMTP id m18so2900666ita.3 for ; Fri, 22 Mar 2019 05:16:56 -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=YW0V78Vu4h5rSxMfAZ1y6bOUKJxVXX904UGaBFUKQa8=; b=WDKi5kGgQoYwzYVeTQGYAfCluHUyqqkQr4L8XoBUwwRZ3Rg+07S302dhmtQ+U8cm7l T64sdCX78UXmCrajT2z1ppLdxsApxO4uxZBxOFTnwyWEw+tnwsKrJ2UhxFyXM4G+wPUw 0UrCAaHqC/wLO1N8dvoxsuLcjUV3ClatF+q/UQGQFpLxhoSF1y3CPuartj6QbQ3yVGio eOFkathweuzmY2hzgwHobGIs1BFTiTcZaiHbO1J2wSsRaKjB5L6MwxiZ4lzY+sz/3MPW uwHa3CUIpQ4FmfXzen4U2NLHa/AcRR562jzCzurIy7A+KTL6C7w7HryfziZNyiMUPr5M mcGw== 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=YW0V78Vu4h5rSxMfAZ1y6bOUKJxVXX904UGaBFUKQa8=; b=Hr7VRHL9sAfk1ngHrNVO7YDFHQEfiJcPyFoSVPB4TK4ltP976ZVniPFgGEvg9hrysp a41SHnOWBRs+ZQuq9smjCHgIAYa5vUGUvE4IjSncAChfJF7IpKyP4laUeNIXrryW8Qt+ MxcVfCUCSM2Bw3ab1Yklj4Nl4FN8CWywNeDSPXNQH435d2COIRQE/Gpn6p7I+VX0jtno 2/scF+kYxmK5yLW246vUZ0viI82e0D0Sr5p5fA0yT0ALAaO4u2J5CmTxKm9A/3LHxOMm 524gAT9593F0HH+gzmSqw4FnRgvuKtqrymLo+i9YiHfvzcLZFWOfrecyZIlJ6z3w40DB KloQ== X-Gm-Message-State: APjAAAWPiTtnq51JMi3iJqRPwuJcyeVoKshiBhAhuOPyh39nptK3xix8 1mrtOGR4e4SMpUjQsJ7TbrYwZsUaY8sTp0DvL4xjeQ== X-Google-Smtp-Source: APXvYqxW+fbLoSgmqWDCRVDgW60p0UzonxKZfDmM1G9AzaUHotxUW5g5bfKL4XCdaufNXQCj6gvKPUNBytz7C3jvfbM= X-Received: by 2002:a02:84ab:: with SMTP id f40mr6306106jai.72.1553257015828; Fri, 22 Mar 2019 05:16:55 -0700 (PDT) MIME-Version: 1.0 References: <0000000000003692760578e651dd@google.com> <0000000000007917ff0584ada6e7@google.com> In-Reply-To: <0000000000007917ff0584ada6e7@google.com> From: Dmitry Vyukov Date: Fri, 22 Mar 2019 13:16:44 +0100 Message-ID: Subject: Re: KASAN: use-after-free Write in hci_sock_release To: syzbot Cc: David Miller , Johan Hedberg , linux-bluetooth , "open list:KERNEL BUILD + fi..." , LKML , Marcel Holtmann , Michal Marek , netdev , syzkaller-bugs , Linus Torvalds Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Fri, Mar 22, 2019 at 1:04 PM syzbot wrote: > > syzbot has bisected this bug to: > > commit c470abd4fde40ea6a0846a2beab642a578c0b8cd > Author: Linus Torvalds > Date: Sun Feb 19 22:34:00 2017 +0000 > > Linux 4.10 > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1664c6df200000 > start commit: c470abd4 Linux 4.10 > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=7308e68273924137 > dashboard link: https://syzkaller.appspot.com/bug?extid=b364ed862aa07c74bc62 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=152532bb400000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13f73320c00000 > > Reported-by: syzbot+b364ed862aa07c74bc62@syzkaller.appspotmail.com > Fixes: c470abd4fde4 ("Linux 4.10") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection The same story of HCI being broken before v4.10, so this is bisected to the release.