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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 E7A5CC06510 for ; Mon, 1 Jul 2019 23:27:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BD76D21721 for ; Mon, 1 Jul 2019 23:27:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726966AbfGAX1C (ORCPT ); Mon, 1 Jul 2019 19:27:02 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:41574 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726347AbfGAX1C (ORCPT ); Mon, 1 Jul 2019 19:27:02 -0400 Received: by mail-io1-f70.google.com with SMTP id x17so16675673iog.8 for ; Mon, 01 Jul 2019 16:27:02 -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=16MzlxsLoFahnav4RXFf2V4QcAW527kx82O9tJkyXRY=; b=U7vt/jv3zvyWPuyQCGubu9s7XltzcKn2WZbAZUybyB5kbZ8xucHNiXOyI+QTKm919r oMq6Qca1x5myIjMKhYM/n38BZtVAcsMLHWsU36KyH7pqVxYFw53gZ4VAHr59+O63cdou PnrPTQEJ0YxczHuvaDm/OwVwDcvvJGHTLuF/D9T1AxZv7aKfRgjbqde+O5S3CrL434rI oCPmdYoXaeX/FjZ9qf0ETef1mK2h57y1m0xFL8d9QGHy8s57pyOfToiMiQT7tA/rpUiS qWhKWaKXcIqdeUbKXZky0ST1cFUjp/LX0OmgaDWgnwi/8tHDu6uL+sfSVhvxd81b3t5y edeg== X-Gm-Message-State: APjAAAWpljlupYkgjFh56l4Wn2kjW6nu+El3u2OfI4PvkXj3sqUrCnRy 2qfFjEGzN0+zXo4NO1dDJ+F56aD4L+IRP5a+n/zcZN/776rS X-Google-Smtp-Source: APXvYqw4/1btu4o4HeW4FhB45ddTChwJ7CLo1NPm8Ve4SzwndfeUaP71iUs3Tpz6mTqCEklpBP5PaEjdpGiQZAFQK7+3PA6sx7zE MIME-Version: 1.0 X-Received: by 2002:a6b:6f09:: with SMTP id k9mr5684537ioc.223.1562023621055; Mon, 01 Jul 2019 16:27:01 -0700 (PDT) Date: Mon, 01 Jul 2019 16:27:01 -0700 In-Reply-To: <0000000000009b1944058ca3e4a8@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000106b11058ca6f7f2@google.com> Subject: Re: WARNING: refcount bug in kobject_add_internal From: syzbot To: benh@kernel.crashing.org, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org 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 syzbot has bisected this bug to: commit 726e41097920a73e4c7c33385dcc0debb1281e18 Author: Benjamin Herrenschmidt Date: Tue Jul 10 00:29:10 2018 +0000 drivers: core: Remove glue dirs from sysfs earlier bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=140d6739a00000 start commit: 6fbc7275 Linux 5.2-rc7 git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=160d6739a00000 console output: https://syzkaller.appspot.com/x/log.txt?x=120d6739a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=bff6583efcfaed3f dashboard link: https://syzkaller.appspot.com/bug?extid=32259bb9bc1a487ad206 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=115bad39a00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1241bdd5a00000 Reported-by: syzbot+32259bb9bc1a487ad206@syzkaller.appspotmail.com Fixes: 726e41097920 ("drivers: core: Remove glue dirs from sysfs earlier") For information about bisection process see: https://goo.gl/tpsmEJ#bisection