From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 553E822F0B for ; Wed, 19 Jul 2023 21:38:50 +0000 (UTC) Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B9251FD5 for ; Wed, 19 Jul 2023 14:38:48 -0700 (PDT) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with both STARTTLS and AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-321-Rz-uIRDPNRGmb65ChaqQQA-1; Wed, 19 Jul 2023 22:38:45 +0100 X-MC-Unique: Rz-uIRDPNRGmb65ChaqQQA-1 Received: from AcuMS.Aculab.com (10.202.163.4) by AcuMS.aculab.com (10.202.163.4) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Wed, 19 Jul 2023 22:38:44 +0100 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Wed, 19 Jul 2023 22:38:44 +0100 From: David Laight To: 'Willem de Bruijn' , Kuniyuki Iwashima CC: "davem@davemloft.net" , "edumazet@google.com" , "gustavoars@kernel.org" , "keescook@chromium.org" , "kuba@kernel.org" , "kuni1840@gmail.com" , "kuniyu@amazon.com" , "leitao@debian.org" , "netdev@vger.kernel.org" , "pabeni@redhat.com" , "syzkaller@googlegroups.com" Subject: RE: [PATCH v1 net 2/2] af_packet: Fix warning of fortified memcpy() in packet_getname(). Thread-Topic: [PATCH v1 net 2/2] af_packet: Fix warning of fortified memcpy() in packet_getname(). Thread-Index: AQHZuojKKXmXWzaE7kCaTSM9ZQwyvq/BnRaw Date: Wed, 19 Jul 2023 21:38:44 +0000 Message-ID: References: <64b8525db522_2831cb294d@willemb.c.googlers.com.notmuch> <20230719212709.63492-1-kuniyu@amazon.com> <64b856d553b5b_2842f2294f0@willemb.c.googlers.com.notmuch> In-Reply-To: <64b856d553b5b_2842f2294f0@willemb.c.googlers.com.notmuch> 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] Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net RnJvbTogV2lsbGVtIGRlIEJydWlqbg0KPiBTZW50OiAxOSBKdWx5IDIwMjMgMjI6MzQNCj4gDQo+ ID4gPg0KPiA+ID4gPiBUaGUgd3JpdGUgc2VlbXMgdG8gb3ZlcmZsb3csIGJ1dCBhY3R1YWxseSBu b3Qgc2luY2Ugd2UgdXNlIHN0cnVjdA0KPiA+ID4gPiBzb2NrYWRkcl9zdG9yYWdlIGRlZmluZWQg aW4gX19zeXNfZ2V0c29ja25hbWUoKS4NCj4gPiA+DQo+ID4gPiBXaGljaCBnaXZlcyBfS19TU19N QVhTSVpFID09IDEyOCwgbWludXMgb2Zmc2V0b2Yoc3RydWN0IHNvY2thZGRyX2xsLCBzbGxfYWRk cikuDQo+ID4gPg0KPiA+ID4gRm9yIGZ1biwgdGhlcmUgaXMgYW5vdGhlciBjYWxsZXIuIGdldHNv Y2tvcHQgU09fUEVFUk5BTUUgYWxzbyBjYWxscw0KPiA+ID4gc29jay0+b3BzLT5nZXRuYW1lLCB3 aXRoIGEgYnVmZmVyIGhhcmRjb2RlZCB0byAxMjguIFNob3VsZCBwcm9iYWJseQ0KPiA+ID4gdXNl IHNpemVvZihzb2NrYWRkcl9zdG9yYWdlKSBmb3IgZG9jdW1lbnRhdGlvbiwgYXQgbGVhc3QuDQo+ ID4gPg0KPiA+ID4gLi4gYW5kIEkganVzdCBub3RpY2VkIHRoYXQgdGhhdCB3YXMgYXR0ZW1wdGVk LCBidXQgbm90IGNvbXBsZXRlZA0KPiA+ID4gaHR0cHM6Ly9sb3JlLmtlcm5lbC5vcmcvbGttbC8y MDE0MDkyODEzNTU0NS5HQTIzMjIwQHR5cGUueW91cGkucGVyc28uYXF1aWxlbmV0LmZyLw0KPiA+ DQo+ID4gWWVzLCBhY3V0YWxseSBteSBmaXJzdCBkcmFmdCBoYWQgdGhlIGRpZmYgYmVsb3csIGJ1 dCBJIGRyb3BwZWQgaXQNCj4gPiBiZWNhdXNlIHBhY2tldF9nZXRuYW1lKCkgZG9lcyBub3QgY2Fs bCBtZW1jcHkoKSBmb3IgU09fUEVFUk5BTUUgYXQNCj4gPiBsZWFzdCwgYW5kIHNhbWUgZm9yIGdl dHBlZXJuYW1lKCkuDQo+ID4NCj4gPiBBbmQgaW50ZXJlc3RpbmdseSB0aGVyZSB3YXMgYSByZXZp dmFsIHRocmVhZC4NCj4gPiBodHRwczovL2xvcmUua2VybmVsLm9yZy9uZXRkZXYvMjAyMzA3MTkw ODQ0MTUuMTM3ODY5Ni0xLWxlaXRhb0BkZWJpYW4ub3JnLw0KPiANCj4gQWggaW50ZXJlc3Rpbmcg OikgVG9waWNhbC4NCj4gDQo+ID4gSSBjYW4gaW5jbHVkZSB0aGlzIGluIHYyIGlmIG5lZWRlZC4N Cj4gPiBXaGF0IGRvIHlvdSB0aGluayA/DQo+ID4NCj4gPiAtLS04PC0tLQ0KPiA+IGRpZmYgLS1n aXQgYS9uZXQvY29yZS9zb2NrLmMgYi9uZXQvY29yZS9zb2NrLmMNCj4gPiBpbmRleCA5MzcwZmQ1 MGFhMmMuLmYxZTg4N2MzMTE1ZiAxMDA2NDQNCj4gPiAtLS0gYS9uZXQvY29yZS9zb2NrLmMNCj4g PiArKysgYi9uZXQvY29yZS9zb2NrLmMNCj4gPiBAQCAtMTgxNSwxNCArMTgxNSwxNCBAQCBpbnQg c2tfZ2V0c29ja29wdChzdHJ1Y3Qgc29jayAqc2ssIGludCBsZXZlbCwgaW50IG9wdG5hbWUsDQo+ ID4NCj4gPiAgCWNhc2UgU09fUEVFUk5BTUU6DQo+ID4gIAl7DQo+ID4gLQkJY2hhciBhZGRyZXNz WzEyOF07DQo+ID4gKwkJc3RydWN0IHNvY2thZGRyX3N0b3JhZ2UgYWRkcmVzczsNCj4gPg0KPiA+ IC0JCWx2ID0gc29jay0+b3BzLT5nZXRuYW1lKHNvY2ssIChzdHJ1Y3Qgc29ja2FkZHIgKilhZGRy ZXNzLCAyKTsNCj4gPiArCQlsdiA9IHNvY2stPm9wcy0+Z2V0bmFtZShzb2NrLCAoc3RydWN0IHNv Y2thZGRyICopJmFkZHJlc3MsIDIpOw0KPiA+ICAJCWlmIChsdiA8IDApDQo+ID4gIAkJCXJldHVy biAtRU5PVENPTk47DQo+ID4gIAkJaWYgKGx2IDwgbGVuKQ0KPiA+ICAJCQlyZXR1cm4gLUVJTlZB TDsNCj4gPiAtCQlpZiAoY29weV90b19zb2NrcHRyKG9wdHZhbCwgYWRkcmVzcywgbGVuKSkNCj4g PiArCQlpZiAoY29weV90b19zb2NrcHRyKG9wdHZhbCwgJmFkZHJlc3MsIGxlbikpDQo+ID4gIAkJ CXJldHVybiAtRUZBVUxUOw0KPiA+ICAJCWdvdG8gbGVub3V0Ow0KPiA+ICAJfQ0KPiA+IC0tLTg8 LS0tDQo+IA0KPiBJIGFncmVlIHRoYXQgaXQncyBhIHdvcnRod2hpbGUgY2hhbmdlLiBJIHRoaW5r IGl0IHNob3VsZCBiZSBhbg0KPiBpbmRlcGVuZGVudCBjb21taXQuIEFuZCBzaW5jZSBpdCBkb2Vz IG5vdCBmaXggYSBidWcsIHRhcmdldCBuZXQtbmV4dC4NCg0KSXQgaXMgcG90ZW50aWFsbHkgYSBi dWcuDQpUaGVyZSBpcyBubyByZXF1aXJlbWVudCB0aGF0IHRoZSBjb21waWxlciBhbGlnbiAnY2hh ciBhZGRyZXNzWzEyOF0nLg0KU28gdGhlIGFjY2Vzc2VzIGNvdWxkIGZhdWx0IGxhdGVyIG9uLg0K DQpJbiBwcmFjdGlzZSBpdCB3aWxsIGJlIGFsaWduZWQgLSB1bmxlc3MgdGhlIGNvbXBpbGVyIGlz IGJlaW5nDQpwZXJ2ZXJzZS4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtl c2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBV Sw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==