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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 46245C433F5 for ; Thu, 3 Mar 2022 01:59:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231577AbiCCCA1 (ORCPT ); Wed, 2 Mar 2022 21:00:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231580AbiCCCA0 (ORCPT ); Wed, 2 Mar 2022 21:00:26 -0500 X-Greylist: delayed 932 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Wed, 02 Mar 2022 17:59:40 PST Received: from baidu.com (mx24.baidu.com [111.206.215.185]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9884838BD5; Wed, 2 Mar 2022 17:59:40 -0800 (PST) Received: from BC-Mail-Ex06.internal.baidu.com (unknown [172.31.51.46]) by Forcepoint Email with ESMTPS id AFF197E458F57ABBF49E; Thu, 3 Mar 2022 09:44:01 +0800 (CST) Received: from BJHW-MAIL-EX25.internal.baidu.com (10.127.64.40) by BC-Mail-Ex06.internal.baidu.com (172.31.51.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.20; Thu, 3 Mar 2022 09:44:01 +0800 Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BJHW-MAIL-EX25.internal.baidu.com (10.127.64.40) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.20; Thu, 3 Mar 2022 09:44:01 +0800 Received: from BJHW-MAIL-EX27.internal.baidu.com ([169.254.58.247]) by BJHW-MAIL-EX27.internal.baidu.com ([169.254.58.247]) with mapi id 15.01.2308.020; Thu, 3 Mar 2022 09:44:01 +0800 From: "Cai,Huoqing" To: Jianglei Nie , "davem@davemloft.net" , "kuba@kernel.org" CC: "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH] net: arc_emac: Fix use after free in arc_mdio_probe() Thread-Topic: [PATCH] net: arc_emac: Fix use after free in arc_mdio_probe() Thread-Index: AQHYLp5LKcUpXpLQGUa95DdJWAWshKys4eVw Date: Thu, 3 Mar 2022 01:44:01 +0000 Message-ID: References: <20220303013022.459154-1-niejianglei2021@163.com> In-Reply-To: <20220303013022.459154-1-niejianglei2021@163.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.18.80.46] Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org SGVsbG8sDQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogSmlhbmdsZWkg TmllIDxuaWVqaWFuZ2xlaTIwMjFAMTYzLmNvbT4NCj4gU2VudDogMjAyMsTqM9TCM8jVIDk6MzAN Cj4gVG86IGRhdmVtQGRhdmVtbG9mdC5uZXQ7IGt1YmFAa2VybmVsLm9yZzsgQ2FpLEh1b3FpbmcN Cj4gQ2M6IG5ldGRldkB2Z2VyLmtlcm5lbC5vcmc7IGxpbnV4LWtlcm5lbEB2Z2VyLmtlcm5lbC5v cmc7IEppYW5nbGVpIE5pZQ0KPiBTdWJqZWN0OiBbUEFUQ0hdIG5ldDogYXJjX2VtYWM6IEZpeCB1 c2UgYWZ0ZXIgZnJlZSBpbiBhcmNfbWRpb19wcm9iZSgpDQo+IA0KPiBJZiBidXMtPnN0YXRlIGlz IGVxdWFsIHRvIE1ESU9CVVNfQUxMT0NBVEVELCBtZGlvYnVzX2ZyZWUoYnVzKSB3aWxsIGZyZWUN Cj4gdGhlICJidXMiLiBCdXQgYnVzLT5uYW1lIGlzIHN0aWxsIHVzZWQgaW4gdGhlIG5leHQgbGlu ZSwgd2hpY2ggd2lsbCBsZWFkDQo+IHRvIGEgdXNlIGFmdGVyIGZyZWUuDQo+IA0KPiBXZSBjYW4g Zml4IGl0IGJ5IGFzc2lnbmluZyBkZXZfZXJyX3Byb2JlKCkgdG8gZGV2X2VyciBiZWZvcmUgdGhl IGJ1cyBpcw0KPiBmcmVlZCB0byBhdm9pZCB0aGUgdWFmLg0KQWRkIGZpeCBsb2cgaGVyZTopDQpG aXhlczogOTViNWZjMDNjMTg5ICgibmV0OiBhcmNfZW1hYzogTWFrZSB1c2Ugb2YgdGhlIGhlbHBl ciBmdW5jdGlvbiBkZXZfZXJyX3Byb2JlKCkiKQ0KPiANCj4gU2lnbmVkLW9mZi1ieTogSmlhbmds ZWkgTmllIDxuaWVqaWFuZ2xlaTIwMjFAMTYzLmNvbT4NCj4gLS0tDQo+ICBkcml2ZXJzL25ldC9l dGhlcm5ldC9hcmMvZW1hY19tZGlvLmMgfCA1ICsrKy0tDQo+ICAxIGZpbGUgY2hhbmdlZCwgMyBp bnNlcnRpb25zKCspLCAyIGRlbGV0aW9ucygtKQ0KPiANCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMv bmV0L2V0aGVybmV0L2FyYy9lbWFjX21kaW8uYw0KPiBiL2RyaXZlcnMvbmV0L2V0aGVybmV0L2Fy Yy9lbWFjX21kaW8uYw0KPiBpbmRleCA5YWNmNTg5YjExNzguLjc5NWEyNWM1ODQ4YSAxMDA2NDQN Cj4gLS0tIGEvZHJpdmVycy9uZXQvZXRoZXJuZXQvYXJjL2VtYWNfbWRpby5jDQo+ICsrKyBiL2Ry aXZlcnMvbmV0L2V0aGVybmV0L2FyYy9lbWFjX21kaW8uYw0KPiBAQCAtMTY1LDkgKzE2NSwxMCBA QCBpbnQgYXJjX21kaW9fcHJvYmUoc3RydWN0IGFyY19lbWFjX3ByaXYgKnByaXYpDQo+IA0KPiAg CWVycm9yID0gb2ZfbWRpb2J1c19yZWdpc3RlcihidXMsIHByaXYtPmRldi0+b2Zfbm9kZSk7DQo+ ICAJaWYgKGVycm9yKSB7DQo+IC0JCW1kaW9idXNfZnJlZShidXMpOw0KPiAtCQlyZXR1cm4gZGV2 X2Vycl9wcm9iZShwcml2LT5kZXYsIGVycm9yLA0KPiArCQlpbnQgZGV2X2VyciA9IGRldl9lcnJf cHJvYmUocHJpdi0+ZGV2LCBlcnJvciwNCj4gIAkJCQkgICAgICJjYW5ub3QgcmVnaXN0ZXIgTURJ TyBidXMgJXNcbiIsIGJ1cy0NCj4gPm5hbWUpOw0KPiArCQltZGlvYnVzX2ZyZWUoYnVzKTsNCj4g KwkJcmV0dXJuIGRldl9lcnI7DQo+ICAJfQ0KPiANCj4gIAlyZXR1cm4gMDsNCj4gLS0NCj4gMi4y NS4xDQoNCg==