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=-6.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no 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 D9A82C388F7 for ; Thu, 22 Oct 2020 09:28:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 826EE2462E for ; Thu, 22 Oct 2020 09:28:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2509809AbgJVJ2T (ORCPT ); Thu, 22 Oct 2020 05:28:19 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:53827 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2895902AbgJVJ2T (ORCPT ); Thu, 22 Oct 2020 05:28:19 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-274-znM0PVqyMcS7eXta51waCQ-1; Thu, 22 Oct 2020 10:28:14 +0100 X-MC-Unique: znM0PVqyMcS7eXta51waCQ-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Thu, 22 Oct 2020 10:28:13 +0100 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Thu, 22 Oct 2020 10:28:13 +0100 From: David Laight To: 'David Hildenbrand' , Greg KH CC: Al Viro , Nick Desaulniers , Christoph Hellwig , "kernel-team@android.com" , Andrew Morton , Jens Axboe , Arnd Bergmann , David Howells , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "linux-mips@vger.kernel.org" , "linux-parisc@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , "linux-s390@vger.kernel.org" , "sparclinux@vger.kernel.org" , "linux-block@vger.kernel.org" , "linux-scsi@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-aio@kvack.org" , "io-uring@vger.kernel.org" , "linux-arch@vger.kernel.org" , "linux-mm@kvack.org" , "netdev@vger.kernel.org" , "keyrings@vger.kernel.org" , "linux-security-module@vger.kernel.org" Subject: RE: Buggy commit tracked to: "Re: [PATCH 2/9] iov_iter: move rw_copy_check_uvector() into lib/iov_iter.c" Thread-Topic: Buggy commit tracked to: "Re: [PATCH 2/9] iov_iter: move rw_copy_check_uvector() into lib/iov_iter.c" Thread-Index: AQHWqE5GNDfnH4y9nkGWtfqJueR1KKmjTCJQgAAMKYSAAABcMA== Date: Thu, 22 Oct 2020 09:28:13 +0000 Message-ID: References: <20200925045146.1283714-1-hch@lst.de> <20200925045146.1283714-3-hch@lst.de> <20201021161301.GA1196312@kroah.com> <20201021233914.GR3576660@ZenIV.linux.org.uk> <20201022082654.GA1477657@kroah.com> <80a2e5fa-718a-8433-1ab0-dd5b3e3b5416@redhat.com> <5d2ecb24db1e415b8ff88261435386ec@AcuMS.aculab.com> <20201022090155.GA1483166@kroah.com> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org RnJvbTogRGF2aWQgSGlsZGVuYnJhbmQNCj4gU2VudDogMjIgT2N0b2JlciAyMDIwIDEwOjE5DQo+ IA0KPiBPbiAyMi4xMC4yMCAxMTowMSwgR3JlZyBLSCB3cm90ZToNCj4gPiBPbiBUaHUsIE9jdCAy MiwgMjAyMCBhdCAxMDo0ODo1OUFNICswMjAwLCBEYXZpZCBIaWxkZW5icmFuZCB3cm90ZToNCj4g Pj4gT24gMjIuMTAuMjAgMTA6NDAsIERhdmlkIExhaWdodCB3cm90ZToNCj4gPj4+IEZyb206IERh dmlkIEhpbGRlbmJyYW5kDQo+ID4+Pj4gU2VudDogMjIgT2N0b2JlciAyMDIwIDA5OjM1DQo+ID4+ Pj4NCj4gPj4+PiBPbiAyMi4xMC4yMCAxMDoyNiwgR3JlZyBLSCB3cm90ZToNCj4gPj4+Pj4gT24g VGh1LCBPY3QgMjIsIDIwMjAgYXQgMTI6Mzk6MTRBTSArMDEwMCwgQWwgVmlybyB3cm90ZToNCj4g Pj4+Pj4+IE9uIFdlZCwgT2N0IDIxLCAyMDIwIGF0IDA2OjEzOjAxUE0gKzAyMDAsIEdyZWcgS0gg d3JvdGU6DQo+ID4+Pj4+Pj4gT24gRnJpLCBTZXAgMjUsIDIwMjAgYXQgMDY6NTE6MzlBTSArMDIw MCwgQ2hyaXN0b3BoIEhlbGx3aWcgd3JvdGU6DQo+ID4+Pj4+Pj4+IEZyb206IERhdmlkIExhaWdo dCA8RGF2aWQuTGFpZ2h0QEFDVUxBQi5DT00+DQo+ID4+Pj4+Pj4+DQo+ID4+Pj4+Pj4+IFRoaXMg bGV0cyB0aGUgY29tcGlsZXIgaW5saW5lIGl0IGludG8gaW1wb3J0X2lvdmVjKCkgZ2VuZXJhdGlu Zw0KPiA+Pj4+Pj4+PiBtdWNoIGJldHRlciBjb2RlLg0KPiA+Pj4+Pj4+Pg0KPiA+Pj4+Pj4+PiBT aWduZWQtb2ZmLWJ5OiBEYXZpZCBMYWlnaHQgPGRhdmlkLmxhaWdodEBhY3VsYWIuY29tPg0KPiA+ Pj4+Pj4+PiBTaWduZWQtb2ZmLWJ5OiBDaHJpc3RvcGggSGVsbHdpZyA8aGNoQGxzdC5kZT4NCj4g Pj4+Pj4+Pj4gLS0tDQo+ID4+Pj4+Pj4+ICBmcy9yZWFkX3dyaXRlLmMgfCAxNzkgLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tDQo+ID4+Pj4+Pj4+ICBsaWIv aW92X2l0ZXIuYyAgfCAxNzYgKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysrKysrKysNCj4gPj4+Pj4+Pj4gIDIgZmlsZXMgY2hhbmdlZCwgMTc2IGluc2VydGlvbnMoKyks IDE3OSBkZWxldGlvbnMoLSkNCj4gPj4+Pj4+Pg0KPiA+Pj4+Pj4+IFN0cmFuZ2VseSwgdGhpcyBj b21taXQgY2F1c2VzIGEgcmVncmVzc2lvbiBpbiBMaW51cydzIHRyZWUgcmlnaHQgbm93Lg0KPiA+ Pj4+Pj4+DQo+ID4+Pj4+Pj4gSSBjYW4ndCByZWFsbHkgZmlndXJlIG91dCB3aGF0IHRoZSByZWdy ZXNzaW9uIGlzLCBvbmx5IHRoYXQgdGhpcyBjb21taXQNCj4gPj4+Pj4+PiB0cmlnZ2VycyBhICJs YXJnZSBBbmRyb2lkIHN5c3RlbSBiaW5hcnkiIGZyb20gd29ya2luZyBwcm9wZXJseS4gIFRoZXJl J3MNCj4gPj4+Pj4+PiBubyBrZXJuZWwgbG9nIG1lc3NhZ2VzIGFueXdoZXJlLCBhbmQgSSBkb24n dCBoYXZlIGFueSB3YXkgdG8gc3RyYWNlIHRoZQ0KPiA+Pj4+Pj4+IHRoaW5nIGluIHRoZSB0ZXN0 aW5nIGZyYW1ld29yaywgc28gYW55IGhpbnRzIHRoYXQgcGVvcGxlIGNhbiBwcm92aWRlDQo+ID4+ Pj4+Pj4gd291bGQgYmUgbW9zdCBhcHByZWNpYXRlZC4NCj4gPj4+Pj4+DQo+ID4+Pj4+PiBJdCdz IGEgcHVyZSBtb3ZlIC0gbW9kdWxvIGNoYW5nZWQgbGluZSBicmVha3MgaW4gdGhlIGFyZ3VtZW50 IGxpc3RzDQo+ID4+Pj4+PiB0aGUgZnVuY3Rpb25zIGludm9sdmVkIGFyZSBpZGVudGljYWwgYmVm b3JlIGFuZCBhZnRlciB0aGF0IChqdXN0IGNoZWNrZWQNCj4gPj4+Pj4+IHRoYXQgZGlyZWN0bHks IGJ5IGNoZWNraW5nIG91dCB0aGUgdHJlZXMgYmVmb3JlIGFuZCBhZnRlciwgZXh0cmFjdGluZyB0 d28NCj4gPj4+Pj4+IGZ1bmN0aW9ucyBpbiBxdWVzdGlvbiBmcm9tIGZzL3JlYWRfd3JpdGUuYyBh bmQgbGliL2lvdl9pdGVyLmMgKGJlZm9yZSBhbmQNCj4gPj4+Pj4+IGFmdGVyLCByZXNwLikgYW5k IGNoZWNraW5nIHRoZSBkaWZmIGJldHdlZW4gdGhvc2UuDQo+ID4+Pj4+Pg0KPiA+Pj4+Pj4gSG93 IGNlcnRhaW4gaXMgeW91ciBiaXNlY3Rpb24/DQo+ID4+Pj4+DQo+ID4+Pj4+IFRoZSBiaXNlY3Rp b24gaXMgdmVyeSByZXByb2R1Y2FibGUuDQo+ID4+Pj4+DQo+ID4+Pj4+IEJ1dCwgdGhpcyBsb29r cyBub3cgdG8gYmUgYSBjb21waWxlciBidWcuICBJJ20gdXNpbmcgdGhlIGxhdGVzdCB2ZXJzaW9u DQo+ID4+Pj4+IG9mIGNsYW5nIGFuZCBpZiBJIHB1dCAibm9pbmxpbmUiIGF0IHRoZSBmcm9udCBv ZiB0aGUgZnVuY3Rpb24sDQo+ID4+Pj4+IGV2ZXJ5dGhpbmcgd29ya3MuDQo+ID4+Pj4NCj4gPj4+ PiBXZWxsLCB0aGUgY29tcGlsZXIgY2FuIGRvIG1vcmUgaW52YXNpdmUgb3B0aW1pemF0aW9ucyB3 aGVuIGlubGluaW5nLiBJZg0KPiA+Pj4+IHlvdSBoYXZlIGJ1Z2d5IGNvZGUgdGhhdCByZWxpZXMg b24gc29tZSB1bnNwZWNpZmllZCBiZWhhdmlvciwgaW5saW5pbmcNCj4gPj4+PiBjYW4gY2hhbmdl IHRoZSBiZWhhdmlvciAuLi4gYnV0IGdvaW5nIG92ZXIgdGhhdCBjb2RlLCB0aGVyZSBpc24ndCB0 b28NCj4gPj4+PiBtdWNoIGFjdGlvbiBnb2luZyBvbi4gQXQgbGVhc3Qgbm90aGluZyBzY3JlYW1l ZCBhdCBtZS4NCj4gPj4+DQo+ID4+PiBBcGFydCBmcm9tIGFsbCB0aGUgb3B0aW1pc2F0aW9ucyB0 aGF0IGdldCByaWQgb2ZmIHRoZSAncGFzcyBiZSByZWZlcmVuY2UnDQo+ID4+PiBwYXJhbWV0ZXJz IGFuZCBzdHJhbmdlIGNvbmRpdGlvbmFsIHRlc3RzLg0KPiA+Pj4gUGxlbnR5IG9mIHNjb3BlIGZv ciB0aGUgY29tcGlsZXIgZ2V0dGluZyBpdCB3cm9uZy4NCj4gPj4+IEJ1dCBub3RoaW5nIGV2ZW4g dmFndWVseSBpbGxlZ2FsLg0KPiA+Pg0KPiA+PiBOb3QgdGhlIGZpcnN0IHRpbWUgdGhhdCBwZW9w bGUgYmxhbWUgdGhlIGNvbXBpbGVyIHRvIHRoZW4gZmlndXJlIG91dA0KPiA+PiB0aGF0IHNvbWV0 aGluZyBlbHNlIGlzIHdyb25nIC4uLiBidXQgbWF5YmUgdGhpcyB0aW1lIGlzIGRpZmZlcmVudCA6 KQ0KPiA+DQo+ID4gSSBhZ3JlZSwgSSBoYXRlIHRvIGJsYW1lIHRoZSBjb21waWxlciwgdGhhdCdz IGFsbW9zdCBuZXZlciB0aGUgcmVhbA0KPiA+IHByb2JsZW0sIGJ1dCB0aGlzIG9uZSBzdXJlICJm ZWVscyIgbGlrZSBpdC4NCj4gPg0KPiA+IEknbSBydW5uaW5nIHNvbWUgbW9yZSB0ZXN0cywgdHJ5 aW5nIHRvIG5hcnJvdyB0aGluZ3MgZG93biBhcyBqdXN0IGFkZGluZw0KPiA+IGEgIm5vaW5saW5l IiB0byB0aGUgZnVuY3Rpb24gdGhhdCBnb3QgbW92ZWQgaGVyZSBkb2Vzbid0IHdvcmsgb24gTGlu dXMncw0KPiA+IHRyZWUgYXQgdGhlIG1vbWVudCBiZWNhdXNlIHRoZSBmdW5jdGlvbiB3YXMgc3Bs aXQgaW50byBtdWx0aXBsZQ0KPiA+IGZ1bmN0aW9ucy4NCj4gPg0KPiA+IEdpdmUgbWUgYSBmZXcg aG91cnMuLi4NCj4gDQo+IEkgbWlnaHQgYmUgd3JvbmcgYnV0DQo+IA0KPiBhKSBpbXBvcnRfaW92 ZWMoKSB1c2VzOg0KPiAtIHVuc2lnbmVkIG5yX3NlZ3MgLT4gaW50DQo+IC0gdW5zaWduZWQgZmFz dF9zZWdzIC0+IGludA0KPiBiKSByd19jb3B5X2NoZWNrX3V2ZWN0b3IoKSB1c2VzOg0KPiAtIHVu c2lnbmVkIGxvbmcgbnJfc2VncyAtPiBsb25nDQo+IC0gdW5zaWduZWQgbG9uZyBmYXN0X3NlZyAt PiBsb25nDQo+IA0KPiBTbyB3aGVuIGNhbGxpbmcgcndfY29weV9jaGVja191dmVjdG9yKCksIHdl IGhhdmUgdG8gemVyby1leHRlbmQgdGhlDQo+IHJlZ2lzdGVycyB1c2VkIGZvciBwYXNzaW5nIHRo ZSBhcmd1bWVudHMuIFRoYXQncyBkZWZpbml0ZWx5IGRvbmUgd2hlbg0KPiBjYWxsaW5nIHRoZSBm dW5jdGlvbiBleHBsaWNpdGx5LiBNYXliZSB3aGVuIGlubGluaW5nIHNvbWV0aGluZyBpcyBtZXNz ZWQgdXA/DQoNClRoYXQncyBhbHNvIG5vdCBuZWVkZWQgb24geDg2LTY0IC0gdGhlIGhpZ2ggYml0 cyBnZXQgY2xlYXJlZCBieSAzMmJpdCB3cml0ZXMuDQpCdXQsIElJUkMsIGFybTY0IGxlYXZlcyB0 aGVtIHVuY2hhbmdlZCBvciB1bmRlZmluZWQuDQoNCkkgZ3Vlc3NpbmcgdGhhdCBldmVyeSBhcnJh eSBhY2Nlc3MgdXNlcyBhICooUnggKyBSeSkgYWRkcmVzc2luZw0KbW9kZS4gU28gaW5kZXhpbmcg YW4gYXJyYXkgZXZlbiB3aXRoICd1bnNpZ25lZCBpbnQnIHJlcXVpcmVzDQphbiBleHBsaWNpdCB6 ZXJvLWV4dGVuZCBvbiBhcm02ND8NCih4ODYtNjQgZW5kcyB1cCB3aXRoIGFuIGV4cGxpY2l0IHNp Z24gZXh0ZW5kIHdoZW4gaW5kZXhpbmcgYW4NCmFycmF5IHdpdGggJ3NpZ25lZCBpbnQnLikNCg0K CURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBN b3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAx Mzk3Mzg2IChXYWxlcykNCg==