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 23F8447A87B for ; Tue, 15 Sep 2026 13:21:13 +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=1789478475; cv=none; b=K5yB0PR4ShAGX+LHYXeiazGozT6e7jBtz6XUFeSUSyI9veqoE0g0LTDGfGDlru9YAvbBCxcXuT5hJEuvLV3Vg2x3xjZjpK2r+37AnFULGsuGtf329bTZcen4AcTxH/MX+zvDQPEbkrdAGTlZ26bBQ6OiAdbZn/DguBQcPz3BERc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789478475; c=relaxed/simple; bh=8udZb70xrXvaqD0uK8be4PCq7GR7PadZKFmCEqH0HvI=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=rPMlUmESNyZNNhA4bhnSaOFfYB+WDdQeb2k5ZfZea8DhP+Gndt7IhDT+S5/s6lcbPGO+usN6S8XFH4Aqsj3uU9atpGQx8doPDAcoHPVw4mr4HJFkM9Jf3rG1vJEE5OHUbXRTstdwwC8WcaWuCofT7Adwq8DkS2EOcEzYm3Yuye4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=K3m17NCh; 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="K3m17NCh" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EE8FC1F00899; Tue, 15 Sep 2026 13:21:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789478473; bh=YPg4GSuofNkNxJz0GB9mED5uObtd5fwUi0qZBM18H4Y=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=K3m17NChjiu1ODEGKAINOV/fak901uqw9YtkYEoybPiuSlALqchMmMjt5sjMDz6IS e1/6QBj0jwW9+oYc9OuWwjeWikRM+rsPxgr+SGZNaxbIvQg2PwG/wjtqKUa55q2rVV CbecNUhHDamkRqOCHyj9eNrIP8GD/ro9B+HM8sS1oSj4TzKzmAWpa3sC0dx0j/uCVW Gp+TYgVP9nebXppoCL6ayLJf25pFRmUt0UIyL2w2MKR/36NJCV2YAOUXlz6t6KmcME SS+dAJ4ztMlZS54ioWm6+FkOY2KAy9nAOQ5Xd4xJV7kec12QhLRP7Nir+97pynEKbS 9cLuEXo2of1Sw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id D09E639263A5; Tue, 15 Sep 2026 13:20:08 +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 v1 net] tcp: Don't call skb_clone_and_charge_r() for close()d listener in tcp_v6_do_rcv(). From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178947840749.1617434.5304253932380881350.git-patchwork-notify@kernel.org> Date: Tue, 15 Sep 2026 13:20:07 +0000 References: <20260914011420.115556-1-kuniyu@google.com> In-Reply-To: <20260914011420.115556-1-kuniyu@google.com> To: Kuniyuki Iwashima Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, ncardwell@google.com, horms@kernel.org, kuni1840@gmail.com, netdev@vger.kernel.org, tarasmadan@google.com Hello: This patch was applied to netdev/net.git (main) by Paolo Abeni : On Mon, 14 Sep 2026 01:14:01 +0000 you wrote: > tcp_v6_do_rcv() no longer calls skb_clone_and_charge_r() for > TCP_LISTEN since commit 073d89808c06 ("net: fix data-races around > sk->sk_forward_alloc"). > > However, there is still a small race window between tcp_v6_rcv() > and tcp_v6_do_rcv(), where concurrent close() changes TCP_LISTEN > to TCP_CLOSE, causing skb_clone_and_charge_r() to be called > locklessly and resulting in the splat below. [0] > > [...] Here is the summary with links: - [v1,net] tcp: Don't call skb_clone_and_charge_r() for close()d listener in tcp_v6_do_rcv(). https://git.kernel.org/netdev/net/c/8e759cd1f644 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html