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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 441A9C04FFE for ; Wed, 8 May 2024 11:52:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9B35C1135FC; Wed, 8 May 2024 11:52:16 +0000 (UTC) X-Greylist: delayed 53337 seconds by postgrey-1.36 at gabe; Wed, 08 May 2024 11:52:15 UTC Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.85.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1F0BB1135FC for ; Wed, 8 May 2024 11:52:14 +0000 (UTC) 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-28-ejStQR8JMFGrAgvUcnec0Q-1; Wed, 08 May 2024 12:52:11 +0100 X-MC-Unique: ejStQR8JMFGrAgvUcnec0Q-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, 8 May 2024 12:51:40 +0100 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Wed, 8 May 2024 12:51:40 +0100 From: David Laight To: =?utf-8?B?J0NocmlzdGlhbiBLw7ZuaWcn?= , "T.J. Mercier" , Charan Teja Kalla , zhiguojiang , Sumit Semwal , "linux-media@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , "linaro-mm-sig@lists.linaro.org" , "linux-kernel@vger.kernel.org" , "opensource.kernel@vivo.com" Subject: RE: [PATCH] dmabuf: fix dmabuf file poll uaf issue Thread-Topic: [PATCH] dmabuf: fix dmabuf file poll uaf issue Thread-Index: AQHaoId+JYKtMQTt+U6dUCQNubR7xbGNNzKw Date: Wed, 8 May 2024 11:51:40 +0000 Message-ID: References: <4fedd80c-d5b6-4478-bfd3-02d1ee1a26e5@vivo.com> <2ebca2fd-9465-4e64-b3cc-ffb88ef87800@vivo.com> <289b9ad6-58a3-aa39-48ae-a244fe108354@quicinc.com> <8ca45837-cbed-28da-4a6f-0dcec8294f51@quicinc.com> <83605228-92ee-b666-d894-1c145af2e5ab@quicinc.com> <8915fcc1-d8f1-48c2-9e51-65159aaa5a3b@amd.com> <44b08793-cf44-4cbd-a3bb-583af351ab9e@amd.com> In-Reply-To: <44b08793-cf44-4cbd-a3bb-583af351ab9e@amd.com> 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 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-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" RnJvbTogQ2hyaXN0aWFuIEvDtm5pZw0KPiBTZW50OiAwNyBNYXkgMjAyNCAxNTowNQ0KLi4uDQo+ IEkgYWN0dWFsbHkgaGF2ZSBiZWVuIHRlbGxpbmcgcGVvcGxlIHRvIChhYil1c2UgdGhlIGVwb2xs IGJlaGF2aW9yIHRvDQo+IGNoZWNrIGlmIHR3byBmaWxlIGRlc2NyaXB0b3JzIHBvaW50IHRvIHRo ZSBzYW1lIHVuZGVybHlpbmcgZmlsZSB3aGVuDQo+IEtDTVAgaXNuJ3QgYXZhaWxhYmxlLg0KDQpJ biB3aGF0IHdheT8NCllvdSBjYW4gYWRkIGJvdGggZmQgdG8gdGhlIHNhbWUgZXBvbGwgZmQuDQpS ZWx5aW5nIG9uIHRoZSBpbXBsaWNpdCBFUE9MTF9DVExfREVMIG5vdCBoYXBwZW5pbmcgdW50aWwg Ym90aCBmZCBhcmUNCmNsb3NlZCBpcyBhIHJlY2lwZSBmb3IgZGlzYXN0ZXIuDQooQW5kIEkgY2Fu J3Qgc2VlIGFuIG9idmlvdXMgd2F5IG9mIHRlc3RpbmcgaXQuKQ0KDQpRNi9BNiBvbiBlcG9sbCg3 KSBzaG91bGQgYWx3YXlzIGhhdmUgaGFkIGEgY2F2ZWF0IHRoYXQgaXQgaXMgYW4NCidpbXBsZW1l bnRhdGlvbiBkZXRhaWwnIGFuZCBzaG91bGRuJ3QgYmUgcmVsaWVkIG9uLg0KKGl0IGlzIHdyaXR0 ZW4gYXMgYSAnYmV3YXJlIG9mJyAuLi4pDQoNClRoZSBvdGhlciBwb2ludCBpcyB0aGF0IHRoZXJl IGFyZSB0d28gd2F5cyB0byBnZXQgbXVsdGlwbGUgZmQgdGhhdA0KcmVmZXJlbmNlIHRoZSBzYW1l IHVuZGVybHlpbmcgZmlsZS4NCmR1cCgpIGZvcmsoKSBldGMgc2hhcmUgdGhlIGZpbGUgb2Zmc2V0 LCBidXQgb3BlbigiL2Rldi9mZC9uIikgYWRkcw0KYSByZWZlcmVuY2UgY291bnQgbGF0ZXIgYW5k IGhhcyBhIHNlcGFyYXRlIGZpbGUgb2Zmc2V0Lg0KDQpJIGRvbid0IGtub3cgd2hpY2ggc3RydWN0 dXJlIGVwb2xsIGlzIHVzaW5nLCBidXQgSSBzdXNwZWN0IGl0IGlzDQp0aGUgZm9ybWVyLg0KU28g aXQgbWF5IG5vdCB0ZWxsIHlvdSB3aGF0IHlvdSB3YW50IHRvIGtub3cuDQoNCglEYXZpZA0KDQot DQpSZWdpc3RlcmVkIEFkZHJlc3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQgRmFybSwg TWlsdG9uIEtleW5lcywgTUsxIDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4NiAoV2Fs ZXMpDQo=