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 6837732C312 for ; Thu, 19 Feb 2026 22:29:59 +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=1771540199; cv=none; b=plN9d/HFAzYXnY2OCZqrjOQc0ykfzGMqdhyLo92F9h3KA1S8vTorAYOS8egE85RcUgn/Nww/4TZDss3AcU/SQ5D62Q8fdzzcJk0HljcWFvHPnKHqTDrhDNVojZVOYaLUBH2GVrf81XHRLgKi7syETAH6ezlhm2cP6Zho6kZRS6g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771540199; c=relaxed/simple; bh=G2B2zdUYlPI97aigYFbdzXLwUbh0l/nzP3pFgT0pmzE=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=T6Q+uLiGeUQQxLuprdG3WUtqBjGHURwVCVTtq/9VOuYVDCVYHyAKTBgzaIUP9azXtEgq067wac0Q9dd2B7qhWbAgEwo3UPH3DKQh1awtQcNWkDjmeQIwoiRPB7FbfBzheLy7KIiZtlYLu3Ynoni5VelpvNz+nwKI9DagFKe9Dkw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gSVIM9mh; 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="gSVIM9mh" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 473D9C2BC87; Thu, 19 Feb 2026 22:29:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771540199; bh=G2B2zdUYlPI97aigYFbdzXLwUbh0l/nzP3pFgT0pmzE=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=gSVIM9mhCxyIOpI/sVzCgOdhdU7Z+G4TYCp6fyjidDqqmVEHRDrQQSklTtRBG3ndM XPbsgV8HunSZOo32IKp+5s6KUrrepGt3atFIBnDuVaWastIunjs9ffIszkBx+qsxvf TkqjhfjKYM8fUcSP1OLA4y8jcouOYsrMOEKGcr2sRWgujaLpwqzz1SQ7SJ8a0Z/sVt LXpYxW8STj9Umuj/mXRtoiqhNFidBC2xAK2GAOA/gVxaOyN4GDJUFiQ2b2b5KhmP+Z QKeBWclQFPKPQ5mGF06HzZJMhznWXhW6HgrVgngKjjXd5AJpkZ/lAkltHMjXZnQaBu y8VBJsK5XPRqA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 02D363809A87; Thu, 19 Feb 2026 22:30:09 +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] tcp: fix potential race in tcp_v6_syn_recv_sock() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177154020754.115050.16114884600252600916.git-patchwork-notify@kernel.org> Date: Thu, 19 Feb 2026 22:30:07 +0000 References: <20260217161205.2079883-1-edumazet@google.com> In-Reply-To: <20260217161205.2079883-1-edumazet@google.com> To: Eric Dumazet Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, ncardwell@google.com, kuniyu@google.com, willemb@google.com, netdev@vger.kernel.org, eric.dumazet@gmail.com, syzbot+937b5bbb6a815b3e5d0b@syzkaller.appspotmail.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Tue, 17 Feb 2026 16:12:05 +0000 you wrote: > Code in tcp_v6_syn_recv_sock() after the call to tcp_v4_syn_recv_sock() > is done too late. > > After tcp_v4_syn_recv_sock(), the child socket is already visible > from TCP ehash table and other cpus might use it. > > Since newinet->pinet6 is still pointing to the listener ipv6_pinfo > bad things can happen as syzbot found. > > [...] Here is the summary with links: - [net] tcp: fix potential race in tcp_v6_syn_recv_sock() https://git.kernel.org/netdev/net/c/858d2a4f67ff You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html