Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.31 as permitted sender) client-ip=23.128.96.31;
Date:   Mon, 18 Sep 2023 09:21:59 -0400
From:   Daniel Jordan <daniel.m.jordan@oracle.com>
To:     Wang Jinchao <wangjinchao@xfusion.com>
Cc:     Steffen Klassert <steffen.klassert@secunet.com>,
        linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
        nstange@suse.de, tangqingmei@xfusion.com, stone.xulei@xfusion.com
Subject: Re: Issue: padata: UAF in padata_serial_worker reproduce
Message-ID: <lq67pqfz4ucmrpbwmor7h23x2iafsnyh4yuz3mfrfaxrsqbyxz@wqp5rih7grwp>
References: <ZQft1jGSMSTRlxfi@fedora>
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <ZQft1jGSMSTRlxfi@fedora>
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?fTw4pG3JrodhoLnJxq0C35JYd0tzBBhinhH0NqdZojSMETQZm1GM+QpOS9Hb?=
 =?us-ascii?Q?QUgN1l7EltdGct41MWrnfaoUxb491n0R+c3sjNTeSa/Dbjpe81QplNuJfUZ5?=
 =?us-ascii?Q?Vv5wTJbwOmtOeHEOaRXgrk7YThHPl4Jy6Sew3bJ7Ve5W/SRRviYQcdogavej?=
 =?us-ascii?Q?MEfvgoHoufhMIrupPUvQCqzURkwN9JBzZMbxEH/Lb3cpK1dnPRYJjkt+vCMa?=
 =?us-ascii?Q?rPKA/lX+/sftRnrO0ZMwIKBk5K+3f2co0uqsoCRi3LPTzbyGxdDQRAq8AABu?=
 =?us-ascii?Q?rakAQJNGx9QpJ31IUucr8Ik0gSYpe3IXYHKokqJPKjBVLy3DqcV/wAkFvlFf?=
 =?us-ascii?Q?EZjPM7B7IMxkEh9yNFtBEUcXi6AzADh0erNbzuko4kP4NoXpZaz54bKyWHLn?=
 =?us-ascii?Q?0OfU6poqD7mJU22Vd+q55VSF3MKX+zbG4Ndw9o2Z4w5OYQxx8gKE/+74GFKA?=
 =?us-ascii?Q?XTWInqFXQ1/i3B++Q/4+j37qVyWydLoQ+V/kGg2hvJ8lne2JNR13+dRpSio1?=
 =?us-ascii?Q?wtiGHe8FWu/9k/kVVPqBHe+aSVv4K84P0kz/7sjG73WrG3TLeKmJYtNXBeoa?=
 =?us-ascii?Q?PTS1kbtlk/YOxiKNvAJwzC4zTR/gyh3PTYhWCOi/zfBuiPlwfAYu9jnVoj76?=
 =?us-ascii?Q?51gZtwZS0W41+idIsD5uPMUB48e1htm1pvhOEFsrrZfbO7JkhPbi93oNNSdv?=
 =?us-ascii?Q?gSb7QHGYDFAjpWsU2iRGsxv8Y97PhZopWNoEv8BgG4DznC0NzjRuvczMX+L9?=
 =?us-ascii?Q?GnA9Hi37upGaBCpQJt/5HgkV8s+EZkMh+C9qDWVdrimBumeqsxZxJqutSQmi?=
 =?us-ascii?Q?VTQxNMD993QFakv5DTtlja5UMsW3k5ztSyzbupCQ/pMlT/AIa+/6ua1SbFYj?=
 =?us-ascii?Q?SnOND3jnH+m2faJwUs0PpVb8crk3SkdFg1hVIvJkG4FFmD2RCgO/evxVVqfF?=
 =?us-ascii?Q?vmAaJxT1ok6l/Ly9JHgxu9QJUXu46pceXaJDfJXun9GE1PZt7lur1EoPXDeM?=
 =?us-ascii?Q?BrWvo6RbXAnWezy/sqYCxQ0ZMuNAgQ46r4A5YMkpvDQtwOOAXtRaBRCAkirz?=
 =?us-ascii?Q?ijwxtDY3DdKJaqKt8IWqBpzViTD29RB9Hkz8Km47YMOSKP4/2tTuxaRAMNiY?=
 =?us-ascii?Q?MXdGGiYAOIN2EXdxinVB1BXipZPMpILiohVjLU7+LTjU5fJtYXIb+5S2YLm3?=
 =?us-ascii?Q?bM4pJcB+ff2yR9y7ZDfi1U+BHcejFCa2anIOLM7G7Gq7C2pL3gmwG+cv27VT?=
 =?us-ascii?Q?nCh2hZgIi8K5U92OByyD4aLPJ7O2dNgbE/Igw/CXWw9TlegXpAfd7WGtiTT+?=
 =?us-ascii?Q?78rkbh4anaHE4DHwdDDtuXRXCsj2R8XinTmi1XMpYfjW1Sb41teFs2SeivYi?=
 =?us-ascii?Q?Ri9bLSvrLDvFipPF4ODpz60RPtg8ngrn4hnG4Gnh+Ut2Th7pnSEhV26VIpzU?=
 =?us-ascii?Q?8s3n9JtSe3b/dK5Nd7giCW5tZyWd/1A/pzQqBeHK/VtavK2YNwxceVTWDAiz?=
 =?us-ascii?Q?KPdH4h+/xVrh6xvucL5dkgTe49wc5FNhgvqTX8GqF0jc8P5/r3tN7H/DKCQr?=
 =?us-ascii?Q?7rPiHP/P4nrctNezlJOkgo3nPLaZcRfN4SW4DpURYMs/rSNXoZKse9IjyzNG?=
 =?us-ascii?Q?rg=3D=3D?=
X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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
X-OriginatorOrg: oracle.com
X-MS-Exchange-CrossTenant-Network-Message-Id: bf01a2f0-45b6-4381-a38e-08dbb84a4120
X-MS-Exchange-CrossTenant-AuthSource: SA1PR10MB5711.namprd10.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Sep 2023 13:22:06.4731
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: /8a0wADUzAQqPPI43xzxuF6TyMWsBFm89QETPMRn63ix2KmrzuepKMdeibfwmudFL5is0lIgEldRZgthUz90DOROJhcDZJ1IB6HBYVdhynw=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR10MB4576
X-Proofpoint-Virus-Version: vendor=baseguard
 engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.601,FMLib:17.11.176.26
 definitions=2023-09-18_06,2023-09-18_01,2023-05-22_02
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 mlxlogscore=617
 adultscore=0 mlxscore=0 spamscore=0 malwarescore=0 suspectscore=0
 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1
 engine=8.12.0-2308100000 definitions=main-2309180117
X-Proofpoint-GUID: 1jFGDkfpWcEydqRgJBJv4lhCS9r6FEeT
X-Proofpoint-ORIG-GUID: 1jFGDkfpWcEydqRgJBJv4lhCS9r6FEeT
X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID,
	DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,
	SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no
	version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on morse.vger.email
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (morse.vger.email [0.0.0.0]); Mon, 18 Sep 2023 08:25:32 -0700 (PDT)

Hi,

On Mon, Sep 18, 2023 at 02:27:34PM +0800, Wang Jinchao wrote:
> Hello, I have reproduced the issue mentioned by Nicolai Stange on an arm64 server.
> After applying Nicolai Stange's patch, the issue did not reoccur even after running for two days.
> The test tools used were ltp20220121 and stress-ng-0.15.06.tar.gz.
> 
> refurl: https://lore.kernel.org/all/20221028160401.cccypv4euxikusiq@parnassus.localdomain/T/#u

Yeah, this series seems close to being finished, just hasn't made it
over the finish line quite yet.  I wonder if Nicolai has plans to
ressurect or whether someone else should take it over.