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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 931C2C433DF for ; Fri, 5 Jun 2020 04:21:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5BB8A207D3 for ; Fri, 5 Jun 2020 04:21:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591330874; bh=HPBz3bEE1JJprSdQmAaivjDc+V/hPAnqgVqPd5/obIw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=tDVpv2fyvKXI5CUUKuq+PJBBlSeKtI+b4OyR5Wqqv6G59G6zgtjXm+hLSdq8yoHHk pIkWQZd+Fqqgh6pnwRWMVVDchOSpBhyJEpOUATsQaSZZiuyxXzcCooW/pkJxp0hI5I ziVqle7yDC+CRyyPGNpdivongKxbXDKh15+o42dg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726016AbgFEEVN (ORCPT ); Fri, 5 Jun 2020 00:21:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:55680 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725280AbgFEEVN (ORCPT ); Fri, 5 Jun 2020 00:21:13 -0400 Received: from sol.localdomain (c-107-3-166-239.hsd1.ca.comcast.net [107.3.166.239]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 260B8206E6; Fri, 5 Jun 2020 04:21:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591330873; bh=HPBz3bEE1JJprSdQmAaivjDc+V/hPAnqgVqPd5/obIw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=bkhq0XGSCLnXIpq4nIRYxNClZQvfffiRaSb12Dtoe/sRGAwQ+Bv05ax2wuPmEK/pd gkGURJ93CPxS0jgxWt0lDY2qo80L4TxQMnXDR9OK94GVRERWppy7Wf5bZKRdwXUZqg TfH71+6nTMgEr16DkIBo4qHQlT8crSIpbHYqdlzY= Date: Thu, 4 Jun 2020 21:21:11 -0700 From: Eric Biggers To: syzbot Cc: brendanhiggins@google.com, dmitry.torokhov@gmail.com, gregkh@linuxfoundation.org, heikki.krogerus@linux.intel.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, rafael.j.wysocki@intel.com, rdunlap@infradead.org, syzkaller-bugs@googlegroups.com Subject: Re: KASAN: use-after-free Read in mousedev_cleanup Message-ID: <20200605042111.GN2667@sol.localdomain> References: <00000000000041728005a653bcd7@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <00000000000041728005a653bcd7@google.com> Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org On Sat, May 23, 2020 at 10:04:14AM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: c11d28ab Add linux-next specific files for 20200522 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=119c3f06100000 > kernel config: https://syzkaller.appspot.com/x/.config?x=3f6dbdea4159fb66 > dashboard link: https://syzkaller.appspot.com/bug?extid=29b33f3f410e564731f1 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=135ffa9a100000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1076acba100000 > > The bug was bisected to: > > commit 4ef12f7198023c09ad6d25b652bd8748c965c7fa > Author: Heikki Krogerus > Date: Wed May 13 15:18:40 2020 +0000 > > kobject: Make sure the parent does not get released before its children > Commit was reverted. #syz invalid