Received-SPF: pass (google.com: domain of linux-wireless+bounces-1783-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223;
From: =?utf-8?B?RGVyZW4gV3UgKOatpuW+t+S7gSk=?= <Deren.Wu@mediatek.com>
To: "mikhail.v.gavrilov@gmail.com" <mikhail.v.gavrilov@gmail.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
	"nbd@nbd.name" <nbd@nbd.name>, "angelogioacchino.delregno@collabora.com"
	<angelogioacchino.delregno@collabora.com>, "linux-kernel@vger.kernel.org"
	<linux-kernel@vger.kernel.org>
Subject: Re: [BUG] Unloading mt7921e module cause use-after-free
Thread-Topic: [BUG] Unloading mt7921e module cause use-after-free
Thread-Index: AQHaQ9fdbKjO/QFV6E6tJMh24OlFD7DVqiSA
Date: Fri, 12 Jan 2024 05:33:48 +0000
Message-ID: <efcb591e162ff0b04a9878f7250ab6ee6907f4a4.camel@mediatek.com>
References: <CABXGCsOdvVwdLmSsC8TZ1jF0UOg_F_W3wqLECWX620PUkvNk=A@mail.gmail.com>
In-Reply-To: <CABXGCsOdvVwdLmSsC8TZ1jF0UOg_F_W3wqLECWX620PUkvNk=A@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?M0tOUzhnRXE2SjBFTEtSSUFxVGVQSkExdjFUK0hZdDdXdXgycyt4WGMxUGVE?=
 =?utf-8?B?VUI2ZitwNmpyamRZMjk1TnhEL1IweG56SlVqVUpOdXErcjNhSitFYzRsZSsz?=
 =?utf-8?B?WFBMWTJ1MFVGbXhQNzJCZ1hvRjMvbTdXTjdyUEhDQnBoOGtHODVCT3E3WEtu?=
 =?utf-8?B?VnluZ1RNK0dRNEM0bGszUHN6ZC9hOEg1VjdXbzJiR1hxbHJjbDBsTDNRTytk?=
 =?utf-8?B?Mktoc0hCaENRNG1QQzlmQTBmN0hCSjNpUjJDbnhBTUNkS2FBNHZOdkZITzZU?=
 =?utf-8?B?TXFRYXpPVFFlbXNrZ1FpU3YyMFlZQmdwdmYyeHFjcGhITVBHeTliVmF0cDlZ?=
 =?utf-8?B?SjNQTmJ5U3cwYTJIVFJwZ2lLZHd6d09PM3RoQ2RLUkZtNWRocmlKY1oyUWpU?=
 =?utf-8?B?U25KeGFUSWNuR3dRdytidE1lZSs1eTlhL2QxWG5RL3VQd1JDd2xQVUloZ0ZP?=
 =?utf-8?B?b0JyRksrUDVLM2g2bllraStqb2hyeVNiN0l6cGJGM3lIVHM4dWsraFVHTS9J?=
 =?utf-8?B?dTdHTHBpa3Z0NkYxZ0s4YzhlVGsrL2g1MEdLSll0NzRzNW1ObUZGVmVXeUIx?=
 =?utf-8?B?L0YrcjRpRDlHWnZIQ2JGWnN1a2p0eDFuWW0vVzF3cGVja1QyRFB0cnVTTkVH?=
 =?utf-8?B?bURFRTh1ZkxPdENkT3lnN1NpM2N4ZkRqeUFZekJYWStyMjBDODRobHBxcnlp?=
 =?utf-8?B?M1N2MkVJbTVWV3RETFE3RVI0dTJkVEwrd0MyZVBnVlVaWG9sQWNjVm9TVU03?=
 =?utf-8?B?ZGN5NnRUK0cxdEE4d25NaytURW1GdlJQS0lGazVwOExqQWV2YjRjUko4WmVZ?=
 =?utf-8?B?bmtURUtmNkJOaEMwdTUrNWV4b0tPZ3Nua3hEVFZ5Qi9QOGMzNExCQ0N4QktJ?=
 =?utf-8?B?ZDlObjFSdXMxRmc5MjVQcmpiUVJwaHlRWDFEWGJhaGxYeVEyYXA4Qk04a2JW?=
 =?utf-8?B?Q1U1ZU1sMDJPZVl1dkRUYjJ3RzQ5OHZ4NjkvdmdJMmVJeWZwbVRQR2JXYlo0?=
 =?utf-8?B?d2R6ckZ5YzFvdU5UNHBlbWZ4MkdhTU8wUDVBTm1ZdFVhdzNlbTRkMkg0Tyti?=
 =?utf-8?B?V2Y3aVJCSUcyOUxvejVzN1I1cVVIRHpWcXNTN1pQbmN0QmNxT1paRy9mQjJm?=
 =?utf-8?B?RFdwWE13ZVg0V3RWNm5WdlV0djJ0ZHVpZ2NvRVhhWDNDMElwS2ZsM3Z0eHFQ?=
 =?utf-8?B?WHh3S3NHcHhiT2YzMXlnREsvekhlZDgrVG52VTJDVFJTc2lUczJUM2pvU2tm?=
 =?utf-8?B?ZFg2QkNERGdmSVBuc0Nxb0NMd2pmS1NHMXY3amcxNTJIMWZQc2Zjc0psWUVD?=
 =?utf-8?B?VGpqSWhUaVZ1Q0k2akx0dyt3c2RqRnE5R1ZPNGxjL1pWTjdtOFRQZGFYWGIr?=
 =?utf-8?B?S1BoQzIzd0dsL0wzbWdTOXlxUXdlU2I2b2VTSWVya0tZZjBLMjN6RlA5S0Rp?=
 =?utf-8?B?SkM5bklXbXl4dXRaRk0rREJYTW9SYkdzdkFpNmpWb3BNZXFBM0NySFE3cG53?=
 =?utf-8?B?SUQ5cHIrSWZ0OTdCMEVtc2NtakNrajYwR3kvTHdIc3ZZSmt2N1BVRHNFNXhO?=
 =?utf-8?B?K1VYSnR4clJyWEN2TE1SdTVBSUQ0YkhxMmp2Wi8yWnNqWk9VcEJXcm5rV2Jz?=
 =?utf-8?B?SnJJT1lDdlYzZy9lcTVRMUF3c3hEVkYzK0R1SWsrOHhXZUJhNlZMbU9VZzRB?=
 =?utf-8?B?cVVBVnB3YWNqVFBvT00vVXF5WFJuWFp5eEcxZkpoTE93S0VYOTNZeTJrOHMw?=
 =?utf-8?B?Z0ZJSFF0VVg0cmJyV3kwZVhXZ1loWnU3T0JTdjhNZklUUDBFUE9WV21iUWYw?=
 =?utf-8?B?Q2lhdG9IMysxdnF2M3FMTHFIRE1HSUZPajU5ZjZSVUZYamJ5ZitoMU9IMy9p?=
 =?utf-8?B?aHlMUWFkbzB1bjZjQ2orMzlFWEFndHRQa05qZ2RQYkRRdDNHK2hFZFRxdGtB?=
 =?utf-8?B?QUJncWN5bUJXeUtxeGhiSGlMNUY5aTRSMUw4dkltY1YyejJ5RjVaMGV2NjY1?=
 =?utf-8?B?NmdTQk50emE2cVprc0lUS29laVV4RnNLcVlTNXVPUGhoekM1YWo5UmRjZlFT?=
 =?utf-8?B?cEtIYm5OdDZIZk1XZmFrd1FqQ0Z3TjJFaVlXRjgrSjQya1gydDlxd2FOTyt2?=
 =?utf-8?B?S3NaM2NNcXl3OGZlc2Z6eGxOdHJYaGVYNU44WkV5SldwWlNOSGhpTjVSbjNt?=
 =?utf-8?B?SHc9PQ==?=
Content-Type: text/plain; charset="utf-8"
Content-ID: <8F81121477260849ADCFD9630518DF27@apcprd03.prod.outlook.com>
Content-Transfer-Encoding: base64
Precedence: bulk
X-Mailing-List: linux-wireless@vger.kernel.org
List-Id: <linux-wireless.vger.kernel.org>
List-Subscribe: <mailto:linux-wireless+subscribe@vger.kernel.org>
List-Unsubscribe: <mailto:linux-wireless+unsubscribe@vger.kernel.org>
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: SI2PR03MB6194.apcprd03.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 27b4cc20-3a4c-404b-b086-08dc13300d63
X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Jan 2024 05:33:48.3553
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: a7687ede-7a6b-4ef6-bace-642f677fbe31
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: UEE4Pmgm1h5y2oLdqXu1cocSZMWZJMZT57zFXknffo6kbgTuHQiaLrZNywMe4HwYX2oUsMN0HxPXt8uEbeKpgQ==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYZPR03MB8615
X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005
X-TM-AS-Result: No-10--7.047000-8.000000
X-TMASE-MatchedRID: dc8Jy61QoRrUL3YCMmnG4v01ZuXoOacdEhHgAtjqBckNcckEPxfz2Iu3
	renu5Y0weAndNL4zv3R0vq5iD4SHzNB/8y3gYF9vAoNa2r+Edw3Mqev3OPqHcaHP/60e74NCalh
	t3nY7gKt6wp2o0sVM4mRdaS26EKBCEd0YyW6tLbm+dJWHbg4ITg2aa5XTqpYWh8BhJvgqWBk1It
	q0yDsRhi5ceACvvcftJsoDhNVKtSopz7oBrDd6eQPZZctd3P4BXcpmQXLhhkSHlDUCu0I+XNqP3
	/FJpX5vcpxEzdYScViRk6XtYogiatLvsKjhs0ldRjjVhf+j/wpKdDgyPBo71yq2rl3dzGQ19+9Z
	qEp9FTg23+jUaFj78lqI5url27E5K2kVdirYdnfSCeg0qIBLTwHsX0ES9qSzMvaSkL8lcbjdA4x
	Y01cYAwxee+piOTT1S9WCdh5u3VkVsGYRo/D4y/p5zpVeeXvdZuS/RYmMlBOzVpyb4QzyoZ6oP1
	a0mRIj
X-TM-AS-User-Approved-Sender: No
X-TM-AS-User-Blocked-Sender: No
X-TMASE-Result: 10--7.047000-8.000000
X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005
X-TM-SNTS-SMTP:
	A4935A3AE8F7348D3105D0D08862E1C829837271568447AC5473B7A862EC93332000:8
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