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 9D5F1C433E0 for ; Fri, 5 Jun 2020 04:19:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7DF46207D5 for ; Fri, 5 Jun 2020 04:19:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591330742; bh=VN0ik2TYEZZIvqEvEgU7z+srHbryyBYf8JHFGdryclI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=2ZkHnNYgH+vp4Pf5MrB+xn+0Z4LbTzgOTwN3HD1Yfej+tuJYw9W5OMPAze0js0slA jOzHne4pd5ki8OGnc25wIqZnSEf6fk95KAh3XIUl+LH57QRcYaI96cH2SmRS+ejtbc Vh4A4Zc51j4JhvmTHj24s+qrC2Fs7KC10SOeWBVU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726021AbgFEETB (ORCPT ); Fri, 5 Jun 2020 00:19:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:54366 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725968AbgFEETB (ORCPT ); Fri, 5 Jun 2020 00:19:01 -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 11DCF207D3; Fri, 5 Jun 2020 04:19:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591330741; bh=VN0ik2TYEZZIvqEvEgU7z+srHbryyBYf8JHFGdryclI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=XT0qg7eC5OYl3JEMDNB8eQ9l7V9FVlscmHhItoVJtgB2weYTX2O2AOWsKWkAwgIPO vVpxLZwrMIVNo0PcNAa/IBMuS3c4aUc1YkwClwEKRPtfKCrFbgCPJs+vdF4PK0pePt /3dNEEt8OqMjBEpUjV2k4z2YJrZlstJrUD6uKjww= Date: Thu, 4 Jun 2020 21:18:59 -0700 From: Eric Biggers To: syzbot Cc: Greg KH , brendanhiggins@google.com, dmitry.torokhov@gmail.com, heikki.krogerus@linux.intel.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, rafael.j.wysocki@intel.com, rdunlap@infradead.org, rydberg@bitmath.org, syzkaller-bugs@googlegroups.com Subject: Re: KASAN: use-after-free Read in evdev_cleanup Message-ID: <20200605041859.GJ2667@sol.localdomain> References: <0000000000007ae41505a66243fb@google.com> <20200524112244.GA1919625@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200524112244.GA1919625@kroah.com> Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org On Sun, May 24, 2020 at 01:22:44PM +0200, Greg KH wrote: > On Sun, May 24, 2020 at 03:24:12AM -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=14f54441100000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=3f6dbdea4159fb66 > > dashboard link: https://syzkaller.appspot.com/bug?extid=20458a5eab138777efc9 > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=133e254a100000 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15dbf016100000 > > > > 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 > > All issues that point to this commit can be now marked invalid as it has > been reverted in Linus's tree. > This is the way to invalidate a syzbot bug report: #syz invalid