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Tue, 15 Sep 2020 07:30:25 -0400 Received: from dggeme751-chm.china.huawei.com (unknown [172.30.72.53]) by Forcepoint Email with ESMTP id 196914EC1020076C53C8; Tue, 15 Sep 2020 19:13:21 +0800 (CST) Received: from dggeme753-chm.china.huawei.com (10.3.19.99) by dggeme751-chm.china.huawei.com (10.3.19.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1913.5; Tue, 15 Sep 2020 19:13:20 +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; Tue, 15 Sep 2020 19:13:20 +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: AdaLUCs+MLS2jE7zQmqovK8cDsLrmg== Date: Tue, 15 Sep 2020 11:13:20 +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 c3l6Ym90IDxzeXpib3QrYzVkNWE1MWRjYmI1NThjYTBjYjVAc3l6a2FsbGVyLmFwcHNwb3RtYWls LmNvbT4gd3JvdGU6DQo+IEhlbGxvLA0KPg0KPnN5emJvdCBoYXMgdGVzdGVkIHRoZSBwcm9wb3Nl ZCBwYXRjaCBidXQgdGhlIHJlcHJvZHVjZXIgaXMgc3RpbGwgdHJpZ2dlcmluZyBhbiBpc3N1ZToN Cj5rZXJuZWwgcGFuaWM6IGNvcnJ1cHRlZCBzdGFjayBlbmQgaW4gc3lzX25hbm9zbGVlcA0KPg0K Pktlcm5lbCBwYW5pYyAtIG5vdCBzeW5jaW5nOiBjb3JydXB0ZWQgc3RhY2sgZW5kIGRldGVjdGVk IGluc2lkZSBzY2hlZHVsZXINCj5DUFU6IDAgUElEOiAxMzc5MSBDb21tOiBzeXotZXhlY3V0b3Iu NCBOb3QgdGFpbnRlZCA1LjkuMC1yYzUtc3l6a2FsbGVyICMwIEhhcmR3YXJlIG5hbWU6IEdvb2ds ZSBHb29nbGUgQ29tcHV0ZSBFbmdpbmUvR29vZ2xlIENvbXB1dGUgRW5naW5lLCBCSU9TIEdvb2ds ZSAwMS8wMS8yMDExIENhbGwgVHJhY2U6DQo+IF9fZHVtcF9zdGFjayBsaWIvZHVtcF9zdGFjay5j Ojc3IFtpbmxpbmVdICBkdW1wX3N0YWNrKzB4MTk4LzB4MWZkIGxpYi9kdW1wX3N0YWNrLmM6MTE4 DQo+IHBhbmljKzB4MzQ3LzB4N2MwIGtlcm5lbC9wYW5pYy5jOjIzMQ0KPiBzY2hlZHVsZV9kZWJ1 ZyBrZXJuZWwvc2NoZWQvY29yZS5jOjQyNzggW2lubGluZV0NCj4gX19zY2hlZHVsZSsweDIyMWUv MHgyMjMwIGtlcm5lbC9zY2hlZC9jb3JlLmM6NDQyMg0KPiBzY2hlZHVsZSsweGQwLzB4MmEwIGtl cm5lbC9zY2hlZC9jb3JlLmM6NDYwMiAgZnJlZXphYmxlX3NjaGVkdWxlIGluY2x1ZGUvbGludXgv ZnJlZXplci5oOjE3MiBbaW5saW5lXQ0KPiBkb19uYW5vc2xlZXArMHgyMjIvMHg2NTAga2VybmVs L3RpbWUvaHJ0aW1lci5jOjE4ODMNCj4gaHJ0aW1lcl9uYW5vc2xlZXArMHgxZjkvMHg0MzAga2Vy bmVsL3RpbWUvaHJ0aW1lci5jOjE5MzYgIF9fZG9fc3lzX25hbm9zbGVlcCBrZXJuZWwvdGltZS9o cnRpbWVyLmM6MTk3MCBbaW5saW5lXSAgX19zZV9zeXNfbmFub3NsZWVwIGtlcm5lbC90aW1lL2hy dGltZXIuYzoxOTU3IFtpbmxpbmVdDQo+IF9feDY0X3N5c19uYW5vc2xlZXArMHgxZGMvMHgyNjAg a2VybmVsL3RpbWUvaHJ0aW1lci5jOjE5NTcNCj4gZG9fc3lzY2FsbF82NCsweDJkLzB4NzAgYXJj aC94ODYvZW50cnkvY29tbW9uLmM6NDYNCj4gZW50cnlfU1lTQ0FMTF82NF9hZnRlcl9od2ZyYW1l KzB4NDQvMHhhOQ0KPlJJUDogMDAzMzoweDQ1YmE4MQ0KPkNvZGU6IDc1IDE0IGI4IDIzIDAwIDAw IDAwIDBmIDA1IDQ4IDNkIDAxIGYwIGZmIGZmIDBmIDgzIDg0IGNmIGZiIGZmIGMzIDQ4IDgzIGVj IDA4IGU4IGVhIDQ2IDAwIDAwIDQ4IDg5IDA0IDI0IGI4IDIzIDAwIDAwIDAwIDBmIDA1IDw0OD4g OGIgM2MgMjQgNDggODkgYzIgZTggMzMgNDcgMDAgMDAgNDggODkgZDAgNDggODMgYzQgMDggNDgg M2QgMDENCj5SU1A6IDAwMmI6MDAwMDdmZmNhNmNiNmQ3MCBFRkxBR1M6IDAwMDAwMjkzIE9SSUdf UkFYOiAwMDAwMDAwMDAwMDAwMDIzDQo+UkFYOiBmZmZmZmZmZmZmZmZmZmRhIFJCWDogMDAwMDAw MDAwMDAyZjIyNiBSQ1g6IDAwMDAwMDAwMDA0NWJhODENCj5SRFg6IDAwMDAwMDAwMDAwMDAwMDAg UlNJOiAwMDAwMDAwMDAwMDAwMDAwIFJESTogMDAwMDdmZmNhNmNiNmQ4MA0KPlJCUDogMDAwMDAw MDAwMDAwMDAwMSBSMDg6IDAwMDAwMDAwMDAwMDAwMDAgUjA5OiAwMDAwMDAwMDAwMDAwMDAwDQo+ UjEwOiAwMDAwN2ZmY2E2Y2I2ZTgwIFIxMTogMDAwMDAwMDAwMDAwMDI5MyBSMTI6IDAwMDAwMDAw MDExOGNmNDANCj5SMTM6IDAwMDAwMDAwMDExOGQ5NDAgUjE0OiBmZmZmZmZmZmZmZmZmZmZmIFIx NTogMDAwMDAwMDAwMTE4Y2ZlYyBLZXJuZWwgT2Zmc2V0OiBkaXNhYmxlZCBSZWJvb3RpbmcgaW4g ODY0MDAgc2Vjb25kcy4uDQo+DQo+DQo+VGVzdGVkIG9uOg0KPg0KPmNvbW1pdDogICAgICAgICA3 OTZjZDhmNCBmaXggZ3BmDQo+Z2l0IHRyZWU6ICAgICAgIGh0dHBzOi8vZ2l0aHViLmNvbS9MaW5t aWFvaGUvbGludXgvDQo+Y29uc29sZSBvdXRwdXQ6IGh0dHBzOi8vc3l6a2FsbGVyLmFwcHNwb3Qu Y29tL3gvbG9nLnR4dD94PTEyYjVkNTAxOTAwMDAwDQo+a2VybmVsIGNvbmZpZzogIGh0dHBzOi8v c3l6a2FsbGVyLmFwcHNwb3QuY29tL3gvLmNvbmZpZz94PWY4MmU1OGE2NjYxYTVhYzQNCj5kYXNo Ym9hcmQgbGluazogaHR0cHM6Ly9zeXprYWxsZXIuYXBwc3BvdC5jb20vYnVnP2V4dGlkPWM1ZDVh NTFkY2JiNTU4Y2EwY2I1DQo+Y29tcGlsZXI6ICAgICAgIGdjYyAoR0NDKSAxMC4xLjAtc3l6IDIw MjAwNTA3DQoNClRoaXMgaXNzdWUgbG9va3MgbGlrZSBpcnJlbGV2YW50IHdpdGggbXkgcHJldmlv dXMgY29tbWl0LCBtYXliZSBpdCdzIGJlY2F1c2UgSSBmaXggdGhpcyBvbiB3cm9uZyBjb21taXQu DQpJIHdvdWxkIHJlYmFzZSB0aGlzIG9uIGNvbW1pdCA1OTEyNjkwMSAoIk1lcmdlIHRhZyAncGVy Zi10b29scy1maXhlcy1mb3ItdjUuOS0yMDIwLTA5LTAzJyAuLiIpLg0KVGhhbmtzLg0KDQo=