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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 E7E0FC433E0 for ; Sun, 24 May 2020 11:22:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B975120823 for ; Sun, 24 May 2020 11:22:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590319368; bh=vxjidV+o2Zato0RAyIvJcJditbT+FyBOCaV10Y80YQA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=eputkTxhRW5I0jy5KEPAC6m20tQ9UZfsgWF/Gi3XMNn0S7D+N4AfyLkEhxuJhYwCB pzoGqZjUKjdybY5nmVpX4YKIc46YpBglZgI5dPc+OKvDjIVPU+GqD8CQXh4r/r9LtN NNVpxKBrPPDLjIAVeMILjHO7D7D53zoT5ZZa+yFA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729016AbgEXLWs (ORCPT ); Sun, 24 May 2020 07:22:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:50426 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728405AbgEXLWs (ORCPT ); Sun, 24 May 2020 07:22:48 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 6C0FF2076C; Sun, 24 May 2020 11:22:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590319367; bh=vxjidV+o2Zato0RAyIvJcJditbT+FyBOCaV10Y80YQA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Im33GO9LfLxWwBjtMKGvnzdPvsLx2KCug4xfziF2buJwpIRRH1AJW+Gl0a+FVubuj SmdxHyT7QCnuLc+nmAXSAjCbEqziNmy7YCwakN/uS+p+2p4FUsj/Rv4SvRGOoNc6bG uf4o0tti7P7Ulw7CWsD3MU0CvIyBlNyTtvNTs7Q4= Date: Sun, 24 May 2020 13:22:44 +0200 From: Greg KH To: syzbot Cc: 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: <20200524112244.GA1919625@kroah.com> References: <0000000000007ae41505a66243fb@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000000000007ae41505a66243fb@google.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 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. thanks, greg k-h