From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 561A337C0EB; Fri, 4 Sep 2026 22:51:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788562290; cv=none; b=guu4ojhlZXKiUeyXRt/PeGKPIfwX8chR51nPfnLK/eH4k+e6W1OGo22D1qZPqcB0RUf3Wh/mvCu+IzSTLwxZOHZlYgjsOlHv4LvvOOMgubSQRx8V195fQD3Ny6VdamqNax+3Rpd5U2vF2a8FoVtCX6I4PPAduo7W5l6AyKbGk+A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788562290; c=relaxed/simple; bh=/i7p4gHciX25bGYdJiZazeizbBDFsFvWtrFAsmOlwB8=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=pzZPtnM8psPwjC/fyRrllheSQBdY2PWkpcLlkemswZPjsKupRuCTveLHB8gqxEqBlEFQ1rlKF3CVjfnKuOpBPbjFbPjNFIg/EWJg3JgPhhUdYReKj+8GbSDz8rbU1nLEdTVay/QsX7g+8wTQiWG7FohlLzxpMAb0sIEPkDPyvDY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=eTjlLOhC; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="eTjlLOhC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3BF471F00A3D; Fri, 4 Sep 2026 22:51:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788562289; bh=69wPxxkKPd2iCd8JHR6c67dG7OFr6nDG88KCuFs2mzM=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=eTjlLOhC7/0uX+D4fCmDjCubXWc92Vdc3ZhdOcdLsjik0/0DK2Ff8jabK66+np5DC m5ZDD0aJcc9kV+X4PcH/Ml0UURg2JsYmOzveMPLB7A8aSzMu7SarhZQyNBbEEMiDjK 5vjIwILQ3r9jgdfR8bKOSjsN+/o9+yeB2/nOo/j3U94n1+NZI+h0aXMiyYshxQI24A nVbqzceKRc2sKHjnxsZAptIKJC3+w6BpXLa14iujJcaJEgdkTmHl+AUDztANmynZ4W VZc5xijPdZpvQ6b2i9Y8agWqzaG7fNpI5MRCiUhMCRDGxMo97ar3hxXlW08KUxGWfI CBr9MBAX7NVPQ== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 1996D3924A7F; Fri, 4 Sep 2026 22:50:31 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net v3] net: bridge: mcast: properly convert mglist to rcu From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178856222964.1003513.16860802841606767335.git-patchwork-notify@kernel.org> Date: Fri, 04 Sep 2026 22:50:29 +0000 References: <20260903093851.1494297-1-razor@blackwall.org> In-Reply-To: <20260903093851.1494297-1-razor@blackwall.org> To: Nikolay Aleksandrov Cc: netdev@vger.kernel.org, idosch@nvidia.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, linus.luessing@c0d3.blue, bridge@lists.linux.dev Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Thu, 3 Sep 2026 12:38:51 +0300 you wrote: > Sashiko reported a bug [1] that br_multicast_del_port_group unlists the > port group not using proper rcu helper that preserves the next pointer and > after that immediately frees the port group without waiting for rcu grace > period. The only rcu walker of mglist is br_multicast_list_adjacent() and > it turns out that function has always been buggy because mglist was never > properly converted to RCU. Fix it by converting it to rcu and moving its > initialization after eth_addr's. Initializing p->next can use > RCU_INIT_POINTER because we have a barrier from the hlist_add_head_rcu call > later, besides we're initializing an unpublished structure anyway. > > [...] Here is the summary with links: - [net,v3] net: bridge: mcast: properly convert mglist to rcu https://git.kernel.org/netdev/net/c/4b772869a1e5 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html