From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-f198.google.com (mail-pg1-f198.google.com [209.85.215.198]) by kanga.kvack.org (Postfix) with ESMTP id DD0A08E0041 for ; Mon, 24 Sep 2018 17:28:05 -0400 (EDT) Received: by mail-pg1-f198.google.com with SMTP id v186-v6so7265030pgb.14 for ; Mon, 24 Sep 2018 14:28:05 -0700 (PDT) Received: from mga11.intel.com (mga11.intel.com. [192.55.52.93]) by mx.google.com with ESMTPS id j16-v6si402754pgg.350.2018.09.24.14.28.04 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 24 Sep 2018 14:28:04 -0700 (PDT) From: "Edgecombe, Rick P" Subject: Re: [PATCH v6 2/4] x86/modules: Increase randomization for modules Date: Mon, 24 Sep 2018 21:27:59 +0000 Message-ID: <1537824509.19013.63.camel@intel.com> References: <1536874298-23492-1-git-send-email-rick.p.edgecombe@intel.com> <1536874298-23492-3-git-send-email-rick.p.edgecombe@intel.com> <1537815484.19013.48.camel@intel.com> In-Reply-To: Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: "keescook@chromium.org" Cc: "linux-kernel@vger.kernel.org" , "daniel@iogearbox.net" , "arjan@linux.intel.com" , "jannh@google.com" , "linux-mm@kvack.org" , "tglx@linutronix.de" , "kristen@linux.intel.com" , "x86@kernel.org" , "hpa@zytor.com" , "mingo@redhat.com" , "alexei.starovoitov@gmail.com" , "kernel-hardening@lists.openwall.com" , "Hansen, Dave" T24gTW9uLCAyMDE4LTA5LTI0IGF0IDEyOjU4IC0wNzAwLCBLZWVzIENvb2sgd3JvdGU6DQo+IE9u IE1vbiwgU2VwIDI0LCAyMDE4IGF0IDExOjU3IEFNLCBFZGdlY29tYmUsIFJpY2sgUA0KPiA8cmlj ay5wLmVkZ2Vjb21iZUBpbnRlbC5jb20+IHdyb3RlOg0KPiA+ID4gSW5zdGVhZCBvZiBoYXZpbmcg dHdvIG9wZW4tY29kZWQgX192bWFsbG9jX25vZGVfcmFuZ2UoKSBjYWxscyBsZWZ0IGluDQo+ID4g PiB0aGlzIGFmdGVyIHRoZSBjaGFuZ2UsIGNhbiB0aGlzIGJlIGRvbmUgaW4gdGVybXMgb2YgYSBj YWxsIHRvDQo+ID4gPiB0cnlfbW9kdWxlX2FsbG9jKCkgaW5zdGVhZD8gSSBzZWUgdGhleSdyZSBz bGlnaHRseSBkaWZmZXJlbnQsIGJ1dCBpdA0KPiA+ID4gbWlnaHQgYmUgbmljZSBmb3IgbWFraW5n IHRoZSB0d28gcGF0aHMgc2hhcmUgbW9yZSBjb2RlLg0KPiA+IE5vdCBzdXJlIHdoYXQgeW91IG1l YW4uIEFjcm9zcyB0aGUgd2hvbGUgY2hhbmdlLCB0aGVyZSBpcyBvbmUgY2FsbA0KPiA+IHRvIF9f dm1hbGxvY19ub2RlX3JhbmdlLCBhbmQgb25lIHRvIF9fdm1hbGxvY19ub2RlX3RyeV9hZGRyLg0K PiBJIGd1ZXNzIEkgbWVhbnQgdGhlIHZtYWxsb2MgY2FsbHMgLS0gb25lIGZvciBub2RlX3Jhbmdl IGFuZCBvbmUgZm9yDQo+IG5vZGVfdHJ5X2FkZHIuIEkgd2FzIHdvbmRlcmluZyBpZiB0aGUgbG9n aWMgY291bGQgYmUgY29tYmluZWQgaW4gc29tZQ0KPiB3YXkgc28gdGhhdCB0aGUgX192bWFsbG9j X25vZGVfcmFuZ2UoKSBjb3VsZCBiZSBtYWRlIGluIHRlcm1zIG9mIHRoZQ0KPiB0aGUgaGVscGVy IHRoYXQgdHJ5X21vZHVsZV9yYW5kb21pemVfZWFjaCgpIHVzZXMuIEJ1dCB0aGlzIGNvdWxkIGp1 c3QNCj4gYmUgbWUgaG9waW5nIGZvciBuaWNlLXRvLXJlYWQgY2hhbmdlcy4gOykNCj4gDQo+IC1L ZWVzDQpPbmUgdGhpbmcgSSBoYWQgYmVlbiBjb25zaWRlcmluZyB3YXMgdG8gbW92ZSB0aGUgd2hv bGUgInRyeSByYW5kb20gbG9jYXRpb25zLA0KdGhlbiB1c2UgYmFja3VwIiBsb2dpYyB0byB2bWFs bG9jLmMsIGFuZCBqdXN0IGhhdmUgcGFyYW1ldGVycyBmb3IgcmFuZG9tIGFyZWENCnNpemUsIG51 bWJlciBvZiB0cmllcywgZXRjLiBUaGlzIHdheSBpdCBjb3VsZCBiZSBwb3NzaWJseSBiZSByZS11 c2VkIGZvciBvdGhlcg0KYXJjaGl0ZWN0dXJlcyBmb3IgbW9kdWxlcy4gQWxzbyBvbiBvdXIgbGlz dCBpcyB0byBsb29rIGF0IHJhbmRvbWl6aW5nIHZtYWxsb2MNCnNwYWNlIChlc3BlY2lhbGx5IHN0 YWNrcyksIHdoaWNoIG1heSBvciBtYXkgbm90IGludm9sdmUgdXNpbmcgYSBzaW1pbGFyIG1ldGhv ZC4NCg0KU28gbWF5YmUgYml0IHByZS1tYXR1cmUgcmVmYWN0b3JpbmcsIGJ1dCB3b3VsZCBhbHNv IGNsZWFuIHVwIHRoZSBjb2RlIGluDQptb2R1bGUuYy4gRG8geW91IHRoaW5rIGl0IHdvdWxkIGJl IHdvcnRoIGl0Pw0KDQpUaGFua3MsDQoNClJpY2s=