From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta22.hihonor.com (mta22.hihonor.com [81.70.192.198]) (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 8FE6D16D9AF for ; Wed, 19 Feb 2025 06:23:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=81.70.192.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739946234; cv=none; b=b+Z8uARcGEMBqBrEJ7Ox4Jy4JsYu9wk3m4hh6F0HMw1uU/3/spVK45kyK3heqPwFNlTMNQPhS9zHUNdrHbbZL4mrLoJOsSNHyUiodddKS0Qque6lwo9f5Z9k8Kvi8Jw4HNl6RCbKe1q/r71kdRbGQED1GQNbZ9sa5LHTSRlaE1I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739946234; c=relaxed/simple; bh=1hIJCWwGC953Ijo4lalx+UZSk476OHtXAIu9d88Nxy0=; h=From:To:CC:Subject:Date:Message-ID:References:In-Reply-To: Content-Type:MIME-Version; b=bwsthJlLc1fwZ/JnzfUTEo/lVC3tVf+bwkUSH4+6k1M4Hd5AmiWNTut+LUTC+OjjTuKIC6qdX+XuDOE517yUifOKVVv+Ez0IE3pIoN3IbiFuQnH0cXy2z9aXE3vCVK6IzyTCXeUbWtWS96fJIBuv8AcHzHfiL2rT9b03vmR6yhE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=honor.com; spf=pass smtp.mailfrom=honor.com; arc=none smtp.client-ip=81.70.192.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=honor.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=honor.com Received: from w001.hihonor.com (unknown [10.68.25.235]) by mta22.hihonor.com (SkyGuard) with ESMTPS id 4YyRCx3dqnzYlZ3B; Wed, 19 Feb 2025 14:23:25 +0800 (CST) Received: from a008.hihonor.com (10.68.30.56) by w001.hihonor.com (10.68.25.235) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Wed, 19 Feb 2025 14:23:43 +0800 Received: from a007.hihonor.com (10.68.22.31) by a008.hihonor.com (10.68.30.56) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Wed, 19 Feb 2025 14:23:43 +0800 Received: from a007.hihonor.com ([fe80::e866:83ac:f23b:c25c]) by a007.hihonor.com ([fe80::e866:83ac:f23b:c25c%10]) with mapi id 15.02.1544.011; Wed, 19 Feb 2025 14:23:42 +0800 From: gaoxu To: Andrew Morton , Barry Song <21cnbao@gmail.com> CC: "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Suren Baghdasaryan , Yosry Ahmed Subject: =?utf-8?B?5Zue5aSNOiBbUEFUQ0ggdjRdIG1tOiBGaXggcG9zc2libGUgTlVMTCBwb2lu?= =?utf-8?B?dGVyIGRlcmVmZXJlbmNlIGluIF9fc3dhcF9kdXBsaWNhdGU=?= Thread-Topic: [PATCH v4] mm: Fix possible NULL pointer dereference in __swap_duplicate Thread-Index: AduCcQRTKSEr86o5RfKgi/48SSQ2J///g8MAgAAaroD//1MYUA== Date: Wed, 19 Feb 2025 06:23:42 +0000 Message-ID: References: <20250218200355.959a79bf9b6253772a95e782@linux-foundation.org> In-Reply-To: <20250218200355.959a79bf9b6253772a95e782@linux-foundation.org> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 PiANCj4gT24gV2VkLCAxOSBGZWIgMjAyNSAxNToyODoyNiArMTMwMCBCYXJyeSBTb25nIDwyMWNu YmFvQGdtYWlsLmNvbT4NCj4gd3JvdGU6DQo+IA0KPiA+ID4gVGhlIHBhdGNoIHNlZW1zIHRvIG9u bHkgcHJvdmlkZSBhIHdvcmthcm91bmQsIGJ1dCB0aGVyZSBhcmUgbm8gbW9yZQ0KPiA+ID4gZWZm ZWN0aXZlIHNvZnR3YXJlIHNvbHV0aW9ucyB0byBoYW5kbGUgdGhlIGJpdCBmbGlwcyBwcm9ibGVt LiBUaGlzDQo+ID4gPiBwYXRoIHdpbGwgY2hhbmdlIHRoZSBpc3N1ZSBmcm9tIGEgc3lzdGVtIGNy YXNoIHRvIGEgcHJvY2Vzcw0KPiA+ID4gZXhjZXB0aW9uLCB0aGVyZWJ5IHJlZHVjaW5nIHRoZSBp bXBhY3Qgb24gdGhlIGVudGlyZSBtYWNoaW5lLg0KPiA+ID4NCj4gPiA+IFNpZ25lZC1vZmYtYnk6 IGdhbyB4dSA8Z2FveHUyQGhvbm9yLmNvbT4NCj4gPg0KPiA+IFJlZ2FyZGxlc3Mgb2Ygd2hldGhl ciB0aGUgYWJvdmUgc3RhdGVtZW50IGlzIDEwMCUgYWNjdXJhdGUgb3Igd2hldGhlcg0KPiA+IGEg Yml0LWZsaXAgYWN0dWFsbHkgZXhpc3RzLCBwcm92aWRpbmcgdGhpcyBjaGVjayBzdGlsbCBzZWVt cyB1c2VmdWwsDQo+ID4gYXQgbGVhc3QgZm9yIGRlZmVuc2l2ZSBwcm9ncmFtbWluZy4NCj4gDQo+ IEknbSBkb3VidGZ1bCBhcyB3ZWxsLg0KPiANCj4gSG93IG9mdGVuIGhhcyB0aGlzIGNyYXNoIGJl ZW4gb2JzZXJ2ZWQ/DQpUaGUgcHJvYmFiaWxpdHkgb2YgdGhpcyBpc3N1ZSBvY2N1cnJpbmcgaXMg YXBwcm94aW1hdGVseSAxIGluIDUwMCwwMDAgcGVyIHdlZWsuDQo=