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[35.200.156.90]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1a75d4887easm12843583c88.9.2026.10.29.00.49.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Oct 2026 00:49:57 -0700 (PDT) From: Anil Kaushik To: Jacob Keller , Jiri Pirko Cc: netdev@vger.kernel.org, "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Ido Schimmel , Nicolas Dichtel , XingWang Xiang , Alice Ryhl , linux-kernel@vger.kernel.org Subject: Re: [PATCH net] genetlink: Reject joining multicast groups no family owns Date: Thu, 29 Oct 2026 07:49:51 +0000 Message-Id: <20261029074951.3413609-1-anilkaushikwireless@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20261029062214.3407223-1-anilkaushikwireless@gmail.com> References: <20261029062214.3407223-1-anilkaushikwireless@gmail.com> X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Adding Jacob and Jiri, I missed them on Cc. On Thu, Oct 29, 2026, Anil Kaushik wrote: > genl_bind() checks the GENL_MCAST_CAP_* flags of a group only when a > family owns it. For a group ID that no family owns, it returns 0, so any > user can join it.