From nobody Wed Jun 24 22:14:17 2026 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 64024480DE9; Tue, 5 May 2026 15:01:48 +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=1777993308; cv=none; b=m/fwWY4FFDaDjt0hazlmDgN8AAqqe+W5r5ANXAqp7T4ykWAwWLSndmxwPFCl2bhE3Rq+Kp9LSIfjWw+jrkUSrUfzl3bfTmDxEJZJbP9URcw7wFoFYCyF9PVfPk+zstxDRmo80yiQ1SSf5WE2rKK4xIlkBJtPd38Fnpxz2FSvyV8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777993308; c=relaxed/simple; bh=px53/60EaBdUVwTZLQJAP1uTkFQrxetJqg6JPD78aBU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=s+b6JFJRAXSNljYpghs2eRrX0MNGE394PUrz++T8eKzP/89rSxpZkch4dViMNLBgg0GQR7tQ0pMTOXGx8S2igRHICH7DABgBCubY6JIfmDhaVJZo0PUvad2akcddkOLt+MIUwwwJTBTqnzl1C9hMYPNqEe5zIOcE3eiEH66uD+c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Rx0o0gwQ; 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="Rx0o0gwQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4B985C4AF0B; Tue, 5 May 2026 15:01:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777993308; bh=px53/60EaBdUVwTZLQJAP1uTkFQrxetJqg6JPD78aBU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Rx0o0gwQWhG/4fQfrr3xTjnf8pUAEvGrIsunHN+Txz0ZsKz2yqDWzU54YQsWyKswN kGTNSEoiVm4E4cSIfbQQc67KiE+FHG17HeS9RaCR8+YsmFQkGgZafMbBC+Fc1aSfzp 5QKz9AgBscRPiQquM8hO3N+R8ordcpKwNCSCLFmNiFH5VXWG1R7pUJ84eGGvOkrEf3 63FB7UZElge0IYYx8U7JnEQ8xGOQ4n2jx8/mLgxrHlM8jJiNwp7dqXBXga+Ktm4kku GjcXsvByybD8kjDHdVlUIpUvF53eTvZ8LGU2fPDvaj39EwUvC9sMiJ+H+W73nppQd+ I+whIBKbFhAqw== From: "Matthieu Baerts (NGI0)" Date: Tue, 05 May 2026 17:00:57 +0200 Subject: [PATCH net 09/11] mptcp: pm: prio: skip closed subflows Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260505-net-mptcp-pm-fixes-7-1-rc3-v1-9-fca8091060a4@kernel.org> References: <20260505-net-mptcp-pm-fixes-7-1-rc3-v1-0-fca8091060a4@kernel.org> In-Reply-To: <20260505-net-mptcp-pm-fixes-7-1-rc3-v1-0-fca8091060a4@kernel.org> To: Mat Martineau , Geliang Tang , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Christoph Paasch Cc: netdev@vger.kernel.org, mptcp@lists.linux.dev, linux-kernel@vger.kernel.org, "Matthieu Baerts (NGI0)" , stable@vger.kernel.org X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1155; i=matttbe@kernel.org; h=from:subject:message-id; bh=px53/60EaBdUVwTZLQJAP1uTkFQrxetJqg6JPD78aBU=; b=owGbwMvMwCVWo/Th0Gd3rumMp9WSGDJ/sTmpzs87HKlj/4FjVcu0RTWfwyevUpy//beGibbum wntmZqXOkpZGMS4GGTFFFmk2yLzZz6v4i3x8rOAmcPKBDKEgYtTACbyh4uR4Z9PRtmZXLk5Zofn lK6c+22/h/KcSUU86/c6blvEUBT2qJyR4WYSy6tVcuW/nx9p2/VX3sj1whK7lPW81cfauw1eWTp NYwAA X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 When sending an MP_PRIO, closed subflows need to be skipped. This fixes the case where the initial subflow got closed, re-opened later, then an MP_PRIO is needed for the same local address. Note that explicit MP_PRIO cannot be sent during the 3WHS, so it is fine to use __mptcp_subflow_active(). Fixes: 067065422fcd ("mptcp: add the outgoing MP_PRIO support") Cc: stable@vger.kernel.org Fixes: b29fcfb54cd7 ("mptcp: full disconnect implementation") Reviewed-by: Mat Martineau Signed-off-by: Matthieu Baerts (NGI0) --- net/mptcp/pm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index 4a6e5ab30d80..3c152bf66cd5 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -284,6 +284,9 @@ int mptcp_pm_mp_prio_send_ack(struct mptcp_sock *msk, struct sock *ssk =3D mptcp_subflow_tcp_sock(subflow); struct mptcp_addr_info local, remote; =20 + if (!__mptcp_subflow_active(subflow)) + continue; + mptcp_local_address((struct sock_common *)ssk, &local); if (!mptcp_addresses_equal(&local, addr, addr->port)) continue; --=20 2.53.0