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Tue, 3 Nov 2026 21:07:19 +0000 Message-ID: <373673dc-9eff-4887-b70e-c0d7a17da301@intel.com> Date: Tue, 3 Nov 2026 13:07:17 -0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net v4 1/2] genetlink: Reject joining multicast groups no family owns To: , Anil Kaushik , CC: , "David S . Miller" , Eric Dumazet , Jakub Kicinski , "Paolo Abeni" , Simon Horman , Ido Schimmel , Jiri Pirko , Florian Westphal , Mat Martineau , XingWang Xiang , Alice Ryhl , References: <179372164269.488856.17448970060747076034@kernel.org> <20261103161254.56922-1-anilkaushikwireless@gmail.com> From: Jacob Keller Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-ClientProxiedBy: MW4PR04CA0036.namprd04.prod.outlook.com (2603:10b6:303:6a::11) To DS0PR11MB7381.namprd11.prod.outlook.com (2603:10b6:8:134::14) X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS0PR11MB7381:EE_|IA3PR11MB9109:EE_ X-MS-Office365-Filtering-Correlation-Id: c3992cbc-0cf5-4594-0d49-08df39ee7296 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|23010399003|1800799024|366016|10067099003|22082099003|261102123227099003|18002099003|261026121527099003|56012099006|4143699003|11063799006|261021121427099003|5023799004|261026140227099003|261022105027099003|261028144727099003|261021135927099003; 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I don't know of a program that does this. >> >> Ido, Nicolas, is this OK to keep, or should bind() skip unowned IDs? >> I can send a new version if needed. > It's ok for me, but if a regression occurs, a fix will be needed. > I let others speak. > > Nicolas This sounds like it might fall under the "no breaking user space" even if its quite silly... But I am not an expert here so I am not sure. Thanks, Jake