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=-5.4 required=3.0 tests=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 13CFDC433DF for ; Sat, 16 May 2020 21:27:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E742320709 for ; Sat, 16 May 2020 21:27:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726730AbgEPV1G (ORCPT ); Sat, 16 May 2020 17:27:06 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:54397 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726693AbgEPV1F (ORCPT ); Sat, 16 May 2020 17:27:05 -0400 Received: by mail-il1-f199.google.com with SMTP id j69so5840939ila.21 for ; Sat, 16 May 2020 14:27:03 -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=f3hko+0TXM3ZTxTzVXQjaXqhvt2WnzZbWWNxH4vk64g=; b=BK3ToBKCxsD1T7O/Ru7OlpqOOqp7tp6eqg97d9yPbQCRLxDN7JGRd/p06AeAoEmkqb fsLqFV9qpPiqimBWgkzcBcupW4xm16C14yO3INvZ7W/e96zV9UCv9xR4c/YK7cEWnvRb r15tCAnofxAmw4fcc2Y9Ro9ofEWZ4KO/2IqSyy1ZdarXIUv+YZS6ygW5Y2PH0gRS1bPV Gf4lQeqlp39pI2Ku6oIEYhJsb7cxgqqEdwho6RIEpCpjTDF8qddDd8SnpKc+l+GFqlN1 1jpC9FaUxgzYTIQihBpVxoJU1eZoOb71oocDuwGnjCcrwLgBTGke8UWgnzQmefJPpf10 au2A== X-Gm-Message-State: AOAM532MUd9ydbcPzIcfq3g7Ym5NWdzIrvOSI7p1uEZTrrV6pR6iubxX EsEwQlnLtFlsH386rVrgTZr71z+M8ynGi85g/TcdFZ3c9aEx X-Google-Smtp-Source: ABdhPJz0cH5oPpV8Crm3N4eRME8yr4YUcg2zWCEKfV1oaXJx6vivQpTeE+zffP6GmIpSFnRS9D7COeZSShOVJTZOtPesbiPzsDog MIME-Version: 1.0 X-Received: by 2002:a02:860e:: with SMTP id e14mr1019310jai.109.1589664423356; Sat, 16 May 2020 14:27:03 -0700 (PDT) Date: Sat, 16 May 2020 14:27:03 -0700 In-Reply-To: <0000000000003692760578e651dd@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000044329005a5ca97eb@google.com> Subject: Re: KASAN: use-after-free Write in hci_sock_release From: syzbot To: bigeasy@linutronix.de, davem@davemloft.net, dvyukov@google.com, jack@suse.cz, johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, mmarek@suse.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, torvalds@linux-foundation.org, xiyou.wangcong@gmail.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 syzbot suspects this bug was fixed by commit: commit f1e67e355c2aafeddf1eac31335709236996d2fe Author: Thomas Gleixner Date: Mon Nov 18 13:28:24 2019 +0000 fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1761ce06100000 start commit: 645ff1e8 Merge branch 'for-linus' of git://git.kernel.org/.. 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 If the result looks correct, please mark the bug fixed by replying with: #syz fix: fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t For information about bisection process see: https://goo.gl/tpsmEJ#bisection