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=-2.4 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,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 67CC1C2D0DB for ; Tue, 28 Jan 2020 16:16:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3BE6024683 for ; Tue, 28 Jan 2020 16:16:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="Vg+Ekxju" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726034AbgA1QQb (ORCPT ); Tue, 28 Jan 2020 11:16:31 -0500 Received: from userp2120.oracle.com ([156.151.31.85]:40672 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726007AbgA1QQb (ORCPT ); Tue, 28 Jan 2020 11:16:31 -0500 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id 00SGDVk1014825; Tue, 28 Jan 2020 16:16:09 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=qy22FaHfum9y12gC/r49okFpviWfxvUrEe5zPiGQYQI=; b=Vg+EkxjuU4sJv1Dre6mWsetm78pjlhTpv6+JULUxOraq0/AUP/xB+PMzTVkaG5mGSh0h 5xfa2Shcvi6mWYlbsHTHBsVZvp4bdxnDJOUUkDavG6UikSirDcKGYsKUWSueGSksau4J oRWB6lTmVnXqa0M2cOuceA+AQO+ihTctumAY5IlGnhVic5olqzbCsRY3ot1UvRyi0Ikr 16RplOaZIXi5BQs12EFRNwEBAsdKuQiotuK/MQzHMMh36pGdUuM/55O+SUnOM5qZ7kwi gyB5FlatEHYDnJ7TqH/QzMVOjV+xCEKYf3BljgHijaThYZoKn4p/vWZTggel/VqwserC tQ== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by userp2120.oracle.com with ESMTP id 2xrear78ab-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 28 Jan 2020 16:16:09 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.27/8.16.0.27) with SMTP id 00SGEQcd124833; Tue, 28 Jan 2020 16:16:08 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserp3030.oracle.com with ESMTP id 2xtg7v6v81-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 28 Jan 2020 16:16:08 +0000 Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 00SGG7j6005880; Tue, 28 Jan 2020 16:16:07 GMT Received: from kadam (/129.205.23.165) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 28 Jan 2020 08:16:06 -0800 Date: Tue, 28 Jan 2020 19:15:56 +0300 From: Dan Carpenter To: Saar Amar Cc: Tony Luck , Borislav Petkov , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , "x86@kernel.org" , "linux-edac@vger.kernel.org" , "security@kernel.org" Subject: Re: [EXTERNAL] [PATCH] x86/MCE/AMD: Fix use after free in error handling Message-ID: <20200128161556.GB1754@kadam> References: <20190813100752.GM1935@kadam> <20200128140846.phctkvx5btiexvbx@kili.mountain> 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=9514 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=735 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1911140001 definitions=main-2001280126 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9514 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=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=799 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1911140001 definitions=main-2001280126 Sender: linux-edac-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-edac@vger.kernel.org On Tue, Jan 28, 2020 at 03:59:08PM +0000, Saar Amar wrote: > Actually, if we are at it - Dan, given the fact there is an actual use > (a dereference) for that pointer after the free, shouldn't we assign a > CVE for it? > We don't give CVEs, you'd have to contact someone else. I don't think this has a security impact because you already have to be root to trigger it. regards, dan carpenter