From mboxrd@z Thu Jan 1 00:00:00 1970 From: Damien Le Moal Subject: Re: [PATCH] tcmu: Fix possible overflow for memcpy address in iovec Date: Tue, 11 Jul 2017 09:17:16 +0000 Message-ID: <1499764634.16582.1.camel@wdc.com> References: <1499758843-14159-1-git-send-email-lixiubo@cmss.chinamobile.com> <1499762465.28145.48.camel@haakon3.daterainc.com> <45bc0296-7b3a-c2d5-8e3b-c7b60ff6e2bb@cmss.chinamobile.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <45bc0296-7b3a-c2d5-8e3b-c7b60ff6e2bb@cmss.chinamobile.com> Content-Language: en-US Content-ID: <23CC8263351368408C67E887E8001C1A@namprd04.prod.outlook.com> Sender: target-devel-owner@vger.kernel.org To: "lixiubo@cmss.chinamobile.com" , "nab@linux-iscsi.org" Cc: "linux-scsi@vger.kernel.org" , "mchristi@redhat.com" , "target-devel@vger.kernel.org" , "bryantly@linux.vnet.ibm.com" List-Id: linux-scsi@vger.kernel.org WGl1Ym8sDQoNCk9uIFR1ZSwgMjAxNy0wNy0xMSBhdCAxNzowNCArMDgwMCwgWGl1Ym8gTGkgd3Jv dGU6DQo+ID4gPiA+ID4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvdGFyZ2V0L3RhcmdldF9jb3JlX3Vz ZXIuYw0KPiA+ID4gPiA+IGIvZHJpdmVycy90YXJnZXQvdGFyZ2V0X2NvcmVfdXNlci5jDQo+ID4g PiA+ID4gaW5kZXggOTMwODAwYy4uODZhODQ1YSAxMDA2NDQNCj4gPiA+ID4gPiAtLS0gYS9kcml2 ZXJzL3RhcmdldC90YXJnZXRfY29yZV91c2VyLmMNCj4gPiA+ID4gPiArKysgYi9kcml2ZXJzL3Rh cmdldC90YXJnZXRfY29yZV91c2VyLmMNCj4gPiA+ID4gPiBAQCAtNDM3LDcgKzQzNyw3IEBAIHN0 YXRpYyBpbnQgc2NhdHRlcl9kYXRhX2FyZWEoc3RydWN0IHRjbXVfZGV2DQo+ID4gPiA+ID4gKnVk ZXYsDQo+ID4gPiA+ID4gwqDCoMKgCQkJdG9fb2Zmc2V0ID0gZ2V0X2Jsb2NrX29mZnNldF91c2Vy KHVkZXYsDQo+ID4gPiA+ID4gZGJpLA0KPiA+ID4gPiA+IMKgwqDCoAkJCQkJYmxvY2tfcmVtYWlu aW5nKTsNCj4gPiA+ID4gPiDCoMKgwqAJCQlvZmZzZXQgPSBEQVRBX0JMT0NLX1NJWkUgLQ0KPiA+ ID4gPiA+IGJsb2NrX3JlbWFpbmluZzsNCj4gPiA+ID4gPiAtCQkJdG8gPSAodm9pZCAqKSh1bnNp Z25lZCBsb25nKXRvICsgb2Zmc2V0Ow0KPiA+ID4gPiA+ICsJCQl0byA9ICh2b2lkICopKCh1bnNp Z25lZCBsb25nKXRvICsgb2Zmc2V0KTsNCj4gPiA+ID4gPiDCoMKgwqANCj4gPiA+ID4gPiDCoMKg wqAJCQlpZiAoKmlvdl9jbnQgIT0gMCAmJg0KPiA+ID4gPiA+IMKgwqDCoAkJCcKgwqDCoMKgdG9f b2Zmc2V0ID09IGlvdl90YWlsKHVkZXYsICppb3YpKSB7DQo+ID4gPiA+ID4gQEAgLTUxMCw3ICs1 MTAsNyBAQCBzdGF0aWMgdm9pZCBnYXRoZXJfZGF0YV9hcmVhKHN0cnVjdCB0Y211X2Rldg0KPiA+ ID4gPiA+ICp1ZGV2LCBzdHJ1Y3QgdGNtdV9jbWQgKmNtZCwNCj4gPiA+ID4gPiDCoMKgwqAJCQlj b3B5X2J5dGVzID0gbWluX3Qoc2l6ZV90LCBzZ19yZW1haW5pbmcsDQo+ID4gPiA+ID4gwqDCoMKg CQkJCQlibG9ja19yZW1haW5pbmcpOw0KPiA+ID4gPiA+IMKgwqDCoAkJCW9mZnNldCA9IERBVEFf QkxPQ0tfU0laRSAtDQo+ID4gPiA+ID4gYmxvY2tfcmVtYWluaW5nOw0KPiA+ID4gPiA+IC0JCQlm cm9tID0gKHZvaWQgKikodW5zaWduZWQgbG9uZylmcm9tICsNCj4gPiA+ID4gPiBvZmZzZXQ7DQo+ ID4gPiA+ID4gKwkJCWZyb20gPSAodm9pZCAqKSgodW5zaWduZWQgbG9uZylmcm9tICsNCj4gPiA+ ID4gPiBvZmZzZXQpOw0KPiA+ID4gPiA+IMKgwqDCoAkJCXRjbXVfZmx1c2hfZGNhY2hlX3Jhbmdl KGZyb20sDQo+ID4gPiA+ID4gY29weV9ieXRlcyk7DQo+ID4gPiA+ID4gwqDCoMKgCQkJbWVtY3B5 KHRvICsgc2ctPmxlbmd0aCAtIHNnX3JlbWFpbmluZywNCj4gPiA+ID4gPiBmcm9tLA0KPiA+ID4g PiA+IMKgwqDCoAkJCQkJY29weV9ieXRlcyk7DQo+ID4gDQo+ID4gSSB3YXMganVzdCBsb29raW5n IGF0IHRoaXMgcGF0Y2ggYW5kIGFib3V0IHRvIHRyeSB0byBzZWUgaWYgaXQgZml4ZXMgbXkNCj4g PiBwcm9ibGVtLi4uIEl0IGNhbm5vdCBodXJ0LiBUcnlpbmcuLi4NCj4gDQo+IEhpIERhbWllbiwN Cj4gDQo+IFBsZWFzZSB0ZXN0IGFub3RoZXIgcGF0Y2gsIEkgdGhpbmsgdGhhdCBvbmUgbWF5YmUg Zml4IHRoaXMuDQoNCnZvaWQgKiBwb2ludGVyIGFyaXRobWV0aWMgaXMgT0sgYW5kIGVxdWl2YWxl bnQgdG8gdW5zaWduZWQgbG9uZy4gU28gSSBkbyBub3QNCnRoaW5rIHRoaXMgYWN0dWFsbHkgZml4 ZXMgYW55dGhpbmcgYW5kIGNvdWxkIGJlIHJld3JpdHRlbiBtb3JlIHNpbXBseSBhcw0KDQp0byAr PSBvZmZzZXQ7DQoNCmFuZCANCg0KZnJvbSArPSBvZmZzZXQuDQoNCkFuZCB0aGF0IGNvbXBpbGVz IHdpdGhvdXQgYSB3YXJuaW5nIGFuZCB0aGVyZSBhcmUgbm8gY29tcGxhaW50cyBmcm9tIHNwYXJz ZS4NCg0KQ2hlZXJzLg0KDQoNCi0tIA0KRGFtaWVuIExlIE1vYWwNCldlc3Rlcm4gRGlnaXRhbA==