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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_SANE_1 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 E1A6BC33CB7 for ; Mon, 27 Jan 2020 15:12:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B509F215A4 for ; Mon, 27 Jan 2020 15:12:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="TxBbi15s" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729305AbgA0PMm (ORCPT ); Mon, 27 Jan 2020 10:12:42 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:47210 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729146AbgA0PMm (ORCPT ); Mon, 27 Jan 2020 10:12:42 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id 00RF9eHL000915; Mon, 27 Jan 2020 15:12:05 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=corp-2019-08-05; bh=fHfyRYxqrv2GKnEybOSy0pNXaorqVF+m3LA7NpU4Y+A=; b=TxBbi15sPi/V6nRfn13IAtcIKgCb0WeWBlfmPsoGYlIHQ4pw6eVE7EJsopSxiO4H8WjH tX1XpwmJgGqmH+88IZ/Amkc4UTW3e2HEFN3HtsBjJBrwvJfnCHkH1TTCyatnMspBQRn2 SHrufJwDShOtNuC3ARyrhNftW7TudNhQbre0gkCZyC+5TV7LtdaSi69UuKvcmWYHeflP rpJJKoQV0TiVJdIhjDRLmxeacksq+pC4HDtqIixtNcXYM0EZevENMX+2mCai65OFz0k8 hvkUbdfYvYRIJgnB/pQhKX1kxHPiyWajR/5TfV+DXBmIZGZVcHSuHAdNjo2GDHgcDKR1 TA== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by userp2130.oracle.com with ESMTP id 2xrd3tyxqr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 27 Jan 2020 15:12:05 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.27/8.16.0.27) with SMTP id 00RFBfPG131063; Mon, 27 Jan 2020 15:12:04 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userp3020.oracle.com with ESMTP id 2xrytq7aym-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 27 Jan 2020 15:12:03 +0000 Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 00RFBi2v003902; Mon, 27 Jan 2020 15:11:44 GMT Received: from kadam (/129.205.23.165) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 27 Jan 2020 07:11:43 -0800 Date: Mon, 27 Jan 2020 18:11:35 +0300 From: Dan Carpenter To: Dmitry Vyukov Cc: syzkaller , Hillf Danton , syzbot , Andrey Konovalov , Benjamin Tissoires , Jiri Kosina , "open list:HID CORE LAYER" , LKML , USB list , syzkaller-bugs Subject: Re: KASAN: use-after-free Read in hiddev_disconnect Message-ID: <20200127151135.GM1870@kadam> References: <0000000000004dbaf2059c193a36@google.com> <20200126024957.11392-1-hdanton@sina.com> <20200127092850.GX1847@kadam> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9513 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=612 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1911140001 definitions=main-2001270127 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9513 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=675 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1911140001 definitions=main-2001270127 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org One possible option would be to list the similar bugs at the start of the bug report. See also: KASAN: use-after-free Write in hiddev_disconnect https://syzkaller.appspot.com/bug?extid=784ccb935f9900cc7c9e Then we could just copy and paste to the "#syz dup:" command. The bitmap_port_list() stuff was reported something like 15 times so it was really complicated to track. Hopefully if it were easier to mark things as duplicate that would help. regards, dan carpenter