From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794279306; b=JYOCxyH+mMLeeUM6W3s6KiAqicfdSOacxe8A30/J6/+6xv8pykhtSk1ugtfizshoxxNq 5nL9+BDSYY2YX4jaFmS6xh1ee2Su7O7TnsxksLHqI06OiDZ7HRFEYpiim1QgeHQpsGdxL D4BAhCLEiQPKTnE4SyzzkwZVauGc9fT6URuqukBnQLNnKNBqrektLNReUIDQsItgldGvA kesMCzK3o1nzG/jh9tDl5eDcPjfuelVcM0fzCzb1hLE/0go+2I70H92/Gr+3JLsGG69ID EBL+fE+aK3x0n5XC0N3TIQaxXhPoDMLX7qa9mhXykA0sMcNVxCGayZ6GgY4YStw8mig== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794279306; h=Received:DKIM-Signature:Received:Content-Type:MIME-Version: Content-Transfer-Encoding:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; bh=3n572mO1vWHbrUT40EU2i5Mk6sLDXAheIiNLOL8Aqt8=; b=C69manjjmNgn6wEbU75/s1FlMXRLHL/MR4/igM1j+PCMWHxZcYNAfehCM6LKVCRX6yY1 RIhR07gm7Hnrlcclvjli94pXmJiTA+sN85Mn3STK7OaWPfqgK0ltOIHiH+qScKAsf81ni MYbtVKVeJH4OXxAJvZPHyNhB6W3NGhuiMkEOmoFRO09aSXL2tAxryyNfSKwLVHO2mT9j2 1PmYYMPjrwXqeeJAP4fcDMpYfA904TApxDFHclZIrzbPI2FYW9YFHHXP8cFfDhxzkMF61 QkBCmmrHoXRe7pRtKoYcN3cpFyFBqeQ87PHGmcO9NLgis2aQKqyDgRaWDSxMAaLyGTA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=EjtVTBwH; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D442460A6F76; Tue, 10 Nov 2026 02:55:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=EjtVTBwH Received: by smtp.kernel.org (Postfix) with ESMTPSA id A4DB91F0089F; Tue, 10 Nov 2026 02:55:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794279305; bh=3n572mO1vWHbrUT40EU2i5Mk6sLDXAheIiNLOL8Aqt8=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=EjtVTBwHM6cRw01Z5w6fT8+MtxUfEwCjABoTc9s4ONsBVRMAK1zlzfodb4AtrGCIe jg6HR+6GX+K56GRPrnYxsQvPMGI2AhJullh3T1WodOkQXm93ALKdah+wT2j6feJqKj hX7ie7LF0sKZdFGaNAwucLOTY1SjCBsGhZ4LuopIqw6WLLKWa7i7ig8zG80dDs5yBy Nc1CBN/42JF7Yaslbh+KDVRtOBdK5maSb4D+xhB2m76opyWl9RAfMpwmnQHvLjbgsU bXac8Mgy3u9qzr0TF8h9y/t61cQgNd6VMKTp9lWzYRU6OYYOPEEj77i9Thb4ZTO07F NM1Y33SGbRvYg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 9B131391AFCB; Tue, 10 Nov 2026 02:55:05 +0000 (UTC) Content-Type: text/plain; charset="utf-8" X-Mailing-List: linux-kernel@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 Subject: Re: [PATCH net v3] tcp: free saved_syn after an RCU grace period From: patchwork-bot+netdevbpf@kernel.org Message-Id: <179427930421.3612825.1201326223779642356.git-patchwork-notify@kernel.org> Date: Tue, 10 Nov 2026 02:55:04 +0000 References: <38fa9f2cc476502e9b1c1fef09ebba1df5dd5901.1793795528.git.x-professor@outlook.com> In-Reply-To: <38fa9f2cc476502e9b1c1fef09ebba1df5dd5901.1793795528.git.x-professor@outlook.com> To: Yingjie Wang Cc: edumazet@kernel.org, ncardwell@google.com, kuniyu@google.com, davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com, sdf@fomichev.me, martin.lau@linux.dev, ast@kernel.org, andrii@kernel.org, eddyz87@gmail.com, memxor@gmail.com, song@kernel.org, yonghong.song@linux.dev, jolsa@kernel.org, emil@etsalapatis.com, ihor.solodrai@linux.dev, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Wed, 4 Nov 2026 12:32:19 +0000 you wrote: > tcp_reqsk_record_syn() allocates saved_syn separately from its request > socket. bpf_sock_ops_get_syn() can load that pointer while processing a > retransmitted SYN under RCU. > > There are two ownership transfers which can let another CPU reclaim the > allocation while such a reader is still using it. > > [...] Here is the summary with links: - [net,v3] tcp: free saved_syn after an RCU grace period https://git.kernel.org/netdev/net/c/2b9fd1a0abf0 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html