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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 18B39C433E2 for ; Wed, 16 Sep 2020 01:48:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D1C5720936 for ; Wed, 16 Sep 2020 01:48:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726269AbgIPBsM (ORCPT ); Tue, 15 Sep 2020 21:48:12 -0400 Received: from szxga01-in.huawei.com ([45.249.212.187]:3603 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726023AbgIPBsM (ORCPT ); Tue, 15 Sep 2020 21:48:12 -0400 Received: from dggeme702-chm.china.huawei.com (unknown [172.30.72.56]) by Forcepoint Email with ESMTP id A39656185BC785536EC8; Wed, 16 Sep 2020 09:48:09 +0800 (CST) Received: from dggeme753-chm.china.huawei.com (10.3.19.99) by dggeme702-chm.china.huawei.com (10.1.199.98) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1913.5; Wed, 16 Sep 2020 09:48:09 +0800 Received: from dggeme753-chm.china.huawei.com ([10.7.64.70]) by dggeme753-chm.china.huawei.com ([10.7.64.70]) with mapi id 15.01.1913.007; Wed, 16 Sep 2020 09:48:09 +0800 From: linmiaohe To: syzbot CC: "akpm@linux-foundation.org" , "hdanton@sina.com" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "syzkaller-bugs@googlegroups.com" Subject: Re: general protection fault in unlink_file_vma Thread-Topic: general protection fault in unlink_file_vma Thread-Index: AdaLyqUwCHihR92YQfeHMgqL8TkOUA== Date: Wed, 16 Sep 2020 01:48:09 +0000 Message-ID: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.174.176.109] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PiBIZWxsbywNCj4NCj4gc3l6Ym90IGhhcyB0ZXN0ZWQgdGhlIHByb3Bvc2VkIHBhdGNoIGJ1dCB0 aGUgcmVwcm9kdWNlciBpcyBzdGlsbCB0cmlnZ2VyaW5nIGFuIGlzc3VlOg0KPiBrZXJuZWwgcGFu aWM6IGNvcnJ1cHRlZCBzdGFjayBlbmQgaW4gc3lzX25hbm9zbGVlcA0KPg0KPiBLZXJuZWwgcGFu aWMgLSBub3Qgc3luY2luZzogY29ycnVwdGVkIHN0YWNrIGVuZCBkZXRlY3RlZCBpbnNpZGUgc2No ZWR1bGVyDQo+IENQVTogMCBQSUQ6IDEzNzkxIENvbW06IHN5ei1leGVjdXRvci40IE5vdCB0YWlu dGVkIDUuOS4wLXJjNS1zeXprYWxsZXIgIzAgSGFyZHdhcmUgbmFtZTogR29vZ2xlIEdvb2dsZSBD b21wdXRlIEVuZ2luZS9Hb29nbGUgQ29tcHV0ZSBFbmdpbmUsIEJJT1MgR29vZ2xlIDAxLzAxLzIw MTEgQ2FsbCBUcmFjZToNCj4gIF9fZHVtcF9zdGFjayBsaWIvZHVtcF9zdGFjay5jOjc3IFtpbmxp bmVdICBkdW1wX3N0YWNrKzB4MTk4LzB4MWZkIGxpYi9kdW1wX3N0YWNrLmM6MTE4DQo+ICBwYW5p YysweDM0Ny8weDdjMCBrZXJuZWwvcGFuaWMuYzoyMzENCj4gIHNjaGVkdWxlX2RlYnVnIGtlcm5l bC9zY2hlZC9jb3JlLmM6NDI3OCBbaW5saW5lXQ0KPiAgX19zY2hlZHVsZSsweDIyMWUvMHgyMjMw IGtlcm5lbC9zY2hlZC9jb3JlLmM6NDQyMg0KPiAgc2NoZWR1bGUrMHhkMC8weDJhMCBrZXJuZWwv c2NoZWQvY29yZS5jOjQ2MDIgIGZyZWV6YWJsZV9zY2hlZHVsZSBpbmNsdWRlL2xpbnV4L2ZyZWV6 ZXIuaDoxNzIgW2lubGluZV0NCj4gIGRvX25hbm9zbGVlcCsweDIyMi8weDY1MCBrZXJuZWwvdGlt ZS9ocnRpbWVyLmM6MTg4Mw0KPiAgaHJ0aW1lcl9uYW5vc2xlZXArMHgxZjkvMHg0MzAga2VybmVs L3RpbWUvaHJ0aW1lci5jOjE5MzYgIF9fZG9fc3lzX25hbm9zbGVlcCBrZXJuZWwvdGltZS9ocnRp bWVyLmM6MTk3MCBbaW5saW5lXSAgX19zZV9zeXNfbmFub3NsZWVwIGtlcm5lbC90aW1lL2hydGlt ZXIuYzoxOTU3IFtpbmxpbmVdDQo+ICBfX3g2NF9zeXNfbmFub3NsZWVwKzB4MWRjLzB4MjYwIGtl cm5lbC90aW1lL2hydGltZXIuYzoxOTU3DQo+ICBkb19zeXNjYWxsXzY0KzB4MmQvMHg3MCBhcmNo L3g4Ni9lbnRyeS9jb21tb24uYzo0Ng0KPiAgZW50cnlfU1lTQ0FMTF82NF9hZnRlcl9od2ZyYW1l KzB4NDQvMHhhOQ0KPiBSSVA6IDAwMzM6MHg0NWJhODENCj4gQ29kZTogNzUgMTQgYjggMjMgMDAg MDAgMDAgMGYgMDUgNDggM2QgMDEgZjAgZmYgZmYgMGYgODMgODQgY2YgZmIgZmYgYzMgNDggODMg ZWMgMDggZTggZWEgNDYgMDAgMDAgNDggODkgMDQgMjQgYjggMjMgMDAgMDAgMDAgMGYgMDUgPDQ4 PiA4YiAzYyAyNCA0OCA4OSBjMiBlOCAzMyA0NyAwMCAwMCA0OCA4OSBkMCA0OCA4MyBjNCAwOCA0 OCAzZCAwMQ0KPiBSU1A6IDAwMmI6MDAwMDdmZmNhNmNiNmQ3MCBFRkxBR1M6IDAwMDAwMjkzIE9S SUdfUkFYOiAwMDAwMDAwMDAwMDAwMDIzDQo+IFJBWDogZmZmZmZmZmZmZmZmZmZkYSBSQlg6IDAw MDAwMDAwMDAwMmYyMjYgUkNYOiAwMDAwMDAwMDAwNDViYTgxDQo+IFJEWDogMDAwMDAwMDAwMDAw MDAwMCBSU0k6IDAwMDAwMDAwMDAwMDAwMDAgUkRJOiAwMDAwN2ZmY2E2Y2I2ZDgwDQo+IFJCUDog MDAwMDAwMDAwMDAwMDAwMSBSMDg6IDAwMDAwMDAwMDAwMDAwMDAgUjA5OiAwMDAwMDAwMDAwMDAw MDAwDQo+IFIxMDogMDAwMDdmZmNhNmNiNmU4MCBSMTE6IDAwMDAwMDAwMDAwMDAyOTMgUjEyOiAw MDAwMDAwMDAxMThjZjQwDQo+IFIxMzogMDAwMDAwMDAwMTE4ZDk0MCBSMTQ6IGZmZmZmZmZmZmZm ZmZmZmYgUjE1OiAwMDAwMDAwMDAxMThjZmVjIEtlcm5lbCBPZmZzZXQ6IGRpc2FibGVkIFJlYm9v dGluZyBpbiA4NjQwMCBzZWNvbmRzLi4NCj4NCj4NCj4gVGVzdGVkIG9uOg0KPg0KPiBjb21taXQ6 ICAgICAgICAgNzk2Y2Q4ZjQgZml4IGdwZg0KPiBnaXQgdHJlZTogICAgICAgaHR0cHM6Ly9naXRo dWIuY29tL0xpbm1pYW9oZS9saW51eC8NCj4gY29uc29sZSBvdXRwdXQ6IGh0dHBzOi8vc3l6a2Fs bGVyLmFwcHNwb3QuY29tL3gvbG9nLnR4dD94PTEyYjVkNTAxOTAwMDAwDQo+IGtlcm5lbCBjb25m aWc6ICBodHRwczovL3N5emthbGxlci5hcHBzcG90LmNvbS94Ly5jb25maWc/eD1mODJlNThhNjY2 MWE1YWM0DQo+IGRhc2hib2FyZCBsaW5rOiBodHRwczovL3N5emthbGxlci5hcHBzcG90LmNvbS9i dWc/ZXh0aWQ9YzVkNWE1MWRjYmI1NThjYTBjYjUNCj4gY29tcGlsZXI6ICAgICAgIGdjYyAoR0ND KSAxMC4xLjAtc3l6IDIwMjAwNTA3DQo+DQoNCiNzeXogdGVzdDogaHR0cHM6Ly9naXRodWIuY29t L0xpbm1pYW9oZS9saW51eCB2bWFfbWVyZ2VfZml4DQoNCg==