Return-Path: linux-nfs-owner@vger.kernel.org Received: from mx2.netapp.com ([216.240.18.37]:38626 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751194Ab2HPNh7 (ORCPT ); Thu, 16 Aug 2012 09:37:59 -0400 From: "Myklebust, Trond" To: Sachin Prabhu CC: "Adamson, Dros" , "Adamson, Andy" , "linux-nfs@vger.kernel.org" Subject: Re: [PATCH 1/3] NFSv4: Fix pointer arithmetic in decode_getacl Date: Thu, 16 Aug 2012 13:37:12 +0000 Message-ID: <4FA345DA4F4AE44899BD2B03EEEC2FA93B2004@SACEXCMBX04-PRD.hq.netapp.com> References: <1344984447-17804-1-git-send-email-Trond.Myklebust@netapp.com> <1345123774.23681.10.camel@localhost> In-Reply-To: <1345123774.23681.10.camel@localhost> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org List-ID: T24gVGh1LCAyMDEyLTA4LTE2IGF0IDE0OjI5ICswMTAwLCBTYWNoaW4gUHJhYmh1IHdyb3RlOg0K PiBPbiBUdWUsIDIwMTItMDgtMTQgYXQgMTg6NDcgLTA0MDAsIFRyb25kIE15a2xlYnVzdCB3cm90 ZToNCj4gPiBSZXNldHRpbmcgdGhlIGN1cnNvciB4ZHItPnAgdG8gYSBwcmV2aW91cyB2YWx1ZSBp cyBub3QgYSBzYWZlDQo+ID4gcHJhY3RpY2U6IGlmIHRoZSB4ZHJfc3RyZWFtIGhhcyBjcm9zc2Vk IG91dCBvZiB0aGUgaW5pdGlhbCBpb3ZlYywNCj4gPiB0aGVuIGEgYnVuY2ggb2Ygb3RoZXIgZmll bGRzIHdvdWxkIG5lZWQgdG8gYmUgcmVzZXQgdG9vLg0KPiA+IA0KPiA+IEZpeCB0aGlzIGlzc3Vl IGJ5IHVzaW5nIHhkcl9lbnRlcl9wYWdlKCkgc28gdGhhdCB0aGUgYnVmZmVyIGdldHMNCj4gPiBw YWdlIGFsaWduZWQgYXQgdGhlIGJpdG1hcCBfYmVmb3JlXyB3ZSBkZWNvZGUgaXQuDQo+ID4gDQo+ ID4gQWxzbyBmaXggdGhlIGNvbmZ1c2lvbiBvZiB0aGUgQUNMIGxlbmd0aCB3aXRoIHRoZSBwYWdl IGJ1ZmZlciBsZW5ndGgNCj4gPiBieSBub3QgYWRkaW5nIHRoZSBiYXNlIG9mZnNldCB0byB0aGUg QUNMIGxlbmd0aC4uLg0KPiA+IA0KPiA+IFNpZ25lZC1vZmYtYnk6IFRyb25kIE15a2xlYnVzdCA8 VHJvbmQuTXlrbGVidXN0QG5ldGFwcC5jb20+DQo+ID4gQ2M6IHN0YWJsZUB2Z2VyLmtlcm5lbC5v cmcNCj4gPiAtLS0NCj4gPiAgZnMvbmZzL25mczRwcm9jLmMgfCAgMiArLQ0KPiA+ICBmcy9uZnMv bmZzNHhkci5jICB8IDIxICsrKysrKystLS0tLS0tLS0tLS0tLQ0KPiA+ICAyIGZpbGVzIGNoYW5n ZWQsIDggaW5zZXJ0aW9ucygrKSwgMTUgZGVsZXRpb25zKC0pDQo+ID4gDQo+ID4gZGlmZiAtLWdp dCBhL2ZzL25mcy9uZnM0cHJvYy5jIGIvZnMvbmZzL25mczRwcm9jLmMNCj4gPiBpbmRleCBjNzdk Mjk2Li4yODZhYjcwIDEwMDY0NA0KPiA+IC0tLSBhL2ZzL25mcy9uZnM0cHJvYy5jDQo+ID4gKysr IGIvZnMvbmZzL25mczRwcm9jLmMNCj4gPiBAQCAtMzgxOSw3ICszODE5LDcgQEAgc3RhdGljIHNz aXplX3QgX19uZnM0X2dldF9hY2xfdW5jYWNoZWQoc3RydWN0IGlub2RlICppbm9kZSwgdm9pZCAq YnVmLCBzaXplX3QgYnUNCj4gPiAgCWlmIChyZXQpDQo+ID4gIAkJZ290byBvdXRfZnJlZTsNCj4g PiAgDQo+ID4gLQlhY2xfbGVuID0gcmVzLmFjbF9sZW4gLSByZXMuYWNsX2RhdGFfb2Zmc2V0Ow0K PiA+ICsJYWNsX2xlbiA9IHJlcy5hY2xfbGVuOw0KPiA+ICAJaWYgKGFjbF9sZW4gPiBhcmdzLmFj bF9sZW4pDQo+ID4gIAkJbmZzNF93cml0ZV9jYWNoZWRfYWNsKGlub2RlLCBOVUxMLCAwLCBhY2xf bGVuKTsNCj4gPiAgCWVsc2UNCj4gPiBkaWZmIC0tZ2l0IGEvZnMvbmZzL25mczR4ZHIuYyBiL2Zz L25mcy9uZnM0eGRyLmMNCj4gPiBpbmRleCBjYTEzNDgzLi41NGQzZjVhIDEwMDY0NA0KPiA+IC0t LSBhL2ZzL25mcy9uZnM0eGRyLmMNCj4gPiArKysgYi9mcy9uZnMvbmZzNHhkci5jDQo+ID4gQEAg LTUwNDksMTggKzUwNDksMTQgQEAgc3RhdGljIGludCBkZWNvZGVfZ2V0YWNsKHN0cnVjdCB4ZHJf c3RyZWFtICp4ZHIsIHN0cnVjdCBycGNfcnFzdCAqcmVxLA0KPiA+ICAJdWludDMyX3QgYXR0cmxl biwNCj4gPiAgCQkgYml0bWFwWzNdID0gezB9Ow0KPiA+ICAJaW50IHN0YXR1czsNCj4gPiAtCXNp emVfdCBwYWdlX2xlbiA9IHhkci0+YnVmLT5wYWdlX2xlbjsNCj4gPiAgDQo+ID4gIAlyZXMtPmFj bF9sZW4gPSAwOw0KPiA+ICAJaWYgKChzdGF0dXMgPSBkZWNvZGVfb3BfaGRyKHhkciwgT1BfR0VU QVRUUikpICE9IDApDQo+ID4gIAkJZ290byBvdXQ7DQo+ID4gIA0KPiA+ICsJeGRyX2VudGVyX3Bh Z2UoeGRyLCB4ZHItPmJ1Zi0+cGFnZV9sZW4pOw0KPiA+ICsNCj4gPiAgCWJtX3AgPSB4ZHItPnA7 DQo+ID4gLQlyZXMtPmFjbF9kYXRhX29mZnNldCA9IGJlMzJfdG9fY3B1cChibV9wKSArIDI7DQo+ ID4gLQlyZXMtPmFjbF9kYXRhX29mZnNldCA8PD0gMjsNCj4gPiAtCS8qIENoZWNrIGlmIHRoZSBh Y2wgZGF0YSBzdGFydHMgYmV5b25kIHRoZSBhbGxvY2F0ZWQgYnVmZmVyICovDQo+ID4gLQlpZiAo cmVzLT5hY2xfZGF0YV9vZmZzZXQgPiBwYWdlX2xlbikNCj4gPiAtCQlyZXR1cm4gLUVSQU5HRTsN Cj4gPiAgDQo+ID4gIAlpZiAoKHN0YXR1cyA9IGRlY29kZV9hdHRyX2JpdG1hcCh4ZHIsIGJpdG1h cCkpICE9IDApDQo+ID4gIAkJZ290byBvdXQ7DQo+ID4gQEAgLTUwNzQsMjMgKzUwNzAsMjAgQEAg c3RhdGljIGludCBkZWNvZGVfZ2V0YWNsKHN0cnVjdCB4ZHJfc3RyZWFtICp4ZHIsIHN0cnVjdCBy cGNfcnFzdCAqcmVxLA0KPiA+ICAJCS8qIFRoZSBiaXRtYXAgKHhkciBsZW4gKyBiaXRtYXBzKSBh bmQgdGhlIGF0dHIgeGRyIGxlbiB3b3Jkcw0KPiA+ICAJCSAqIGFyZSBzdG9yZWQgd2l0aCB0aGUg YWNsIGRhdGEgdG8gaGFuZGxlIHRoZSBwcm9ibGVtIG9mDQo+ID4gIAkJICogdmFyaWFibGUgbGVu Z3RoIGJpdG1hcHMuKi8NCj4gPiAtCQl4ZHItPnAgPSBibV9wOw0KPiA+ICsJCXJlcy0+YWNsX2Rh dGFfb2Zmc2V0ID0gKHhkci0+cCAtIGJtX3ApIDw8IDI7DQo+IA0KPiBUaGUgcHJvYmxlbSBoZXJl IGlzIHdpdGggYW4gdW5ib3VuZGVkIGJpdG1hcC4gSW4gdGhlIGNhc2Ugd2hlcmUgdGhlDQo+IHNl cnZlciBkZWNpZGVzIHRvIHNlbmQgYSBsYXJnZSBiaXRtYXAgYW5kIHRoZSB2YWx1ZSBvZiBiaXRt YXAgYXJyYXkgKyAyDQo+IChmb3IgdGhlIGFjbCBsZW5ndGggYXR0cmlidXRlKSBpcyBncmVhdGVy IHRoYW4gdGhlIGJ1ZmZlciBhbGxvY2F0ZWQsIHdlDQo+IHdpbGwgbW92ZSB0byB0aGUgdGFpbCBz ZWN0aW9uIG9mIHRoZSB4ZHIgYW5kIHRoZSBwb2ludGVyIGFyaXRobWV0aWMgaGVyZQ0KPiB3aWxs IGJlIHdyb25nLiANCg0KPiBNYXliZSB3ZSBhcmUgYmV0dGVyIG9mZiBzZXR0aW5nIHJlcy0+YWNs X2RhdGFfb2Zmc2V0IGFzIGluIHRoZSBlYXJsaWVyDQo+IGJsb2NrLiBXZSB3aWxsIG5vdCBuZWVk IHRoZSB2YXJpYWJsZSBibV9wIGluIHRoYXQgY2FzZS4NCg0KDQpJZiB3ZSBvdmVyZmxvdyB0aGUg cGFnZSB3aGlsZSByZWFkaW5nIHRoZSBiaXRtYXAsIHRoZW4gd2UgYXJlIHNjcmV3ZWQNCmFueXdh eSwgc2luY2UgeGRyX2lubGluZV9kZWNvZGUoKSB3aWxsIGZhaWwuIENoYW5naW5nIHRoZSB3YXkg dGhhdCB0aGUNCmRhdGEgb2Zmc2V0IGlzIGNhbGN1bGF0ZWQgd29uJ3QgZml4IHRoYXQuDQoNCi0t IA0KVHJvbmQgTXlrbGVidXN0DQpMaW51eCBORlMgY2xpZW50IG1haW50YWluZXINCg0KTmV0QXBw DQpUcm9uZC5NeWtsZWJ1c3RAbmV0YXBwLmNvbQ0Kd3d3Lm5ldGFwcC5jb20NCg0K