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=-9.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 BECFDC433E0 for ; Tue, 11 Aug 2020 03:35:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 92DF6206DA for ; Tue, 11 Aug 2020 03:35:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728237AbgHKDfJ (ORCPT ); Mon, 10 Aug 2020 23:35:09 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:36001 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727066AbgHKDfJ (ORCPT ); Mon, 10 Aug 2020 23:35:09 -0400 Received: by mail-io1-f71.google.com with SMTP id h205so8770376iof.3 for ; Mon, 10 Aug 2020 20:35:08 -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=0XXF4gP00AKnsVQiDFXbJzMYIOYWHxHdd4RVsRPAbhc=; b=GYCl0NXmgNNtW1JpwqYRbD/hyTZhQfr0dnzJrHd6ur6np24PEVnIjg9JIa78DuO4Xb FjH+TroEhCTuKOHL+RmYHt4Xnpp4Bxu5kvKxN8KSnJ0BCoTV/5QCF98YPaJGNCWKAG7L UXj/DzUQbZLXq4TROT7oX/H0Lvva4KocWc3pOxcfkISwgDLM938fSResPEEHw3FlYZM4 XlmeVGCo+iyNlDAOqm1NC4NBrhLGi2ocIA6BAGYURUkTddN0FdKUiK5QqRX7WJMYub37 bb52cGAZCQlTim6Y9k8m/UmMTOktWhq70J9tHpLsSkqRKlo18KDLx9gWNTqFA/AMhZEP RVpQ== X-Gm-Message-State: AOAM532YPNQb4fo9/AB6xBsen0k+PzyiADBWw/W7OFQyDCz0G6vYrujc 5ElGNbQdsKRK1mS/RC8up3MmNmXOy6LtpMKjRL2CkWiUOZl5 X-Google-Smtp-Source: ABdhPJxgP7ejVjnfsazNH0Tqy82Cxwho0b25shTclrrEX2JEZZQVzsMpsyfvz791kmnbkiw1QrmUlfEf4tjZSNi1+1P0jsQ/cPE1 MIME-Version: 1.0 X-Received: by 2002:a6b:5502:: with SMTP id j2mr20825119iob.204.1597116908036; Mon, 10 Aug 2020 20:35:08 -0700 (PDT) Date: Mon, 10 Aug 2020 20:35:08 -0700 In-Reply-To: <000000000000734f2505ac0f2426@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f7ec6f05ac91c11d@google.com> Subject: Re: KASAN: use-after-free Write in hci_conn_del From: syzbot To: clm@fb.com, davem@davemloft.net, dsterba@suse.com, johan.hedberg@gmail.com, josef@toxicpanda.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, nborisov@suse.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has bisected this issue to: commit 6a3c7f5c87854e948c3c234e5f5e745c7c553722 Author: Nikolay Borisov Date: Thu May 28 08:05:13 2020 +0000 btrfs: don't balance btree inode pages from buffered write path bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14f973c2900000 start commit: 5631c5e0 Merge tag 'xfs-5.9-merge-7' of git://git.kernel.o.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=16f973c2900000 console output: https://syzkaller.appspot.com/x/log.txt?x=12f973c2900000 kernel config: https://syzkaller.appspot.com/x/.config?x=afba7c06f91e56eb dashboard link: https://syzkaller.appspot.com/bug?extid=7b1677fecb5976b0a099 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=155d73fa900000 Reported-by: syzbot+7b1677fecb5976b0a099@syzkaller.appspotmail.com Fixes: 6a3c7f5c8785 ("btrfs: don't balance btree inode pages from buffered write path") For information about bisection process see: https://goo.gl/tpsmEJ#bisection