From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 4DDC0314D34; Fri, 3 Apr 2026 22:40:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775256026; cv=none; b=EuWzuV1kAR1Nr97xxqXP571RL3FJOQ5nU1ZG/pj4BPQ14BIvPUD+fM84cfef+h3nI2ekibCx46KWt1jiD7r3X/OD+F6cIW05Ipgz9pCB6NS7mgVZ32NrGIdy3xgThBjMgPctJTS30LveQxaJvdPt162Ayv2ih2BTCQTgUnMtiL8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775256026; c=relaxed/simple; bh=NRwUQxbnX47EhQ/5fV/mrQtkLbjo3YGJ9fBU0uqRu5g=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=suRyi5mGtUzUhNmKSquzkpFnYj14u2B8qhB1XQmVMfZRAnjFlanhUv21ZG4Fa9pPajocPXWUczokNR/AJap6lc/os3VMy1d3rzWBOeO+vE7FO+NCKUeViiNJLiIqQ46gHbNaCNEKqxw8M5QY2isamhhIP7MLuVGTvwkEQWsfsA4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rXtpXNNH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="rXtpXNNH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EBE44C4CEF7; Fri, 3 Apr 2026 22:40:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775256026; bh=NRwUQxbnX47EhQ/5fV/mrQtkLbjo3YGJ9fBU0uqRu5g=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=rXtpXNNHLPGRO5A19k0lxxFpMjAVhc+Mk89IHPgm2NFA7NemGO6/Q7g7Mae3iqWS2 awy2UJbya65l4YzNSc/d9Qj5Zy4pc65/2iEIB6sBSFfUT3lwikyxJvVHjTYTgpcJ+f l0L8oIla7tkGrr5ZeWMRU2RosxewavWmK2D7WSMY51Gu2tyTnjk8uXxU7D9cXWfCwC U05HwZU60KR0ECWJNMdbSomui/mpKEJ6uJHykTlOIZp06ljX5is4vk86zoble24D1k 5rfOQ2GZbuaLrl4A7X01/sqOPmdOQ6JtqcgKM3vpCi82lA5buaPBDiRqBLVTw9LH8l F+OIxrJDxX0hw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id B9DDC3809A14; Fri, 3 Apr 2026 22:40:08 +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] tipc: fix bc_ackers underflow on duplicate GRP_ACK_MSG From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177525600728.1477337.10729716118426836101.git-patchwork-notify@kernel.org> Date: Fri, 03 Apr 2026 22:40:07 +0000 References: <41a4833f368641218e444fdcff822039.security@1seal.org> In-Reply-To: <41a4833f368641218e444fdcff822039.security@1seal.org> To: Oleh Konko Cc: netdev@vger.kernel.org, jmaloy@redhat.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, tipc-discussion@lists.sourceforge.net, linux-kernel@vger.kernel.org, stable@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Thu, 2 Apr 2026 09:48:57 +0000 you wrote: > The GRP_ACK_MSG handler in tipc_group_proto_rcv() currently decrements > bc_ackers on every inbound group ACK, even when the same member has > already acknowledged the current broadcast round. > > Because bc_ackers is a u16, a duplicate ACK received after the last > legitimate ACK wraps the counter to 65535. Once wrapped, > tipc_group_bc_cong() keeps reporting congestion and later group > broadcasts on the affected socket stay blocked until the group is > recreated. > > [...] Here is the summary with links: - [net,v3] tipc: fix bc_ackers underflow on duplicate GRP_ACK_MSG https://git.kernel.org/netdev/net/c/48a5fe38772b You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html