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 9A3313EC82D; Thu, 15 Oct 2026 08:40:06 +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=1792053615; cv=none; b=N4X/aNhnYLYMnoLGQ3pE95gSYmPWUmN06Ty0GKRH2Rw+v7BoQev8CxP4D0F0SaMPW0NnCAqrfMKx7eQDWuIk/zWsCVblWyF/uZuhe/GULI4VtaZDLWWBik5fmsfKpgTHRN7/SFgcOR4RZyEN8yQjyXj0XOcDTHgw2JQzB4qx6lE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792053615; c=relaxed/simple; bh=RZ+cKOgfEtQixBtdXM/15G0LxjhCKW1T/CB1TCc1uQQ=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=SpLAxwdAur3OANaN+T9E9ld7D0dRnVJAvJa5xBFPubYogil9WB5LWbYIdIEhBp+J1+nYyg4NQO0m0EAnTlpUYsXn3Fo2BUhU9pk/sCW5EshRrwOBAMZAgxG6VL8UJIZTELGvf3KBPblUMb3Kt4xT7eItbJStjLs8I5wlTfCnuhM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BYivEenR; 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="BYivEenR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 076C51F000C4; Thu, 15 Oct 2026 08:40:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792053606; bh=2+Qzy/zE3LEVu5s0aZmSmt6IzfKOou04UP+Z1MlPrN0=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=BYivEenRsOj5d8wkvTcJlEKW+ImAkbPRC33JFXx2expTtZFV/GlpJ/26eUFsRyBn+ K534N4+NcRmVeXRuiE7iNtNSwNSZGfvCHjTt2MB/LNXXY/g1qTuwtU5bUkxv95aFOt le4Kl6SnZL49TFyPEpEcBI/u0MZkWmHvzS9pSOBlV8YjB6RRuRylJFl/UXWkgFi3Rt 3ix3wCcDNCkEtAq2O/jjDonUEibFp1WXlIV0e1FumdkGRjv4D9bhwyyn3AWCr0qFv6 sSJDwjxDYuKxHPoEy1nGf62ZX4AY+1vY7DFAqN+jtg0N8Td1WIIrmJM1EJW65VLff0 qtYrT7+I7f6cA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id F1581392E9EB; Thu, 15 Oct 2026 08:40:05 +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 v2] netlink: avoid hashing the network namespace pointer From: patchwork-bot+netdevbpf@kernel.org Message-Id: <179205360459.3280187.15321954269595792547.git-patchwork-notify@kernel.org> Date: Thu, 15 Oct 2026 08:40:04 +0000 References: <20261008011359.63727-2-kylebot@openai.com> In-Reply-To: <20261008011359.63727-2-kylebot@openai.com> To: Kyle Zeng Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org, pabeni@redhat.com, outbounddisclosures@openai.com Hello: This patch was applied to netdev/net.git (main) by Paolo Abeni : On Wed, 7 Oct 2026 18:14:00 -0700 you wrote: > The netlink rhashtable key includes a raw struct net pointer and a > user-controlled port ID. Both /proc/net/netlink and socket diagnostics > expose the table's bucket order. By binding and rebinding chosen > NETLINK_USERSOCK port IDs, an unprivileged reader can distinguish equal > buckets and recover the low bits of the Jenkins hash. Its 32-bit seed > and the limited set of kernel-image slides can then be searched offline > to recover the address of init_net. > > [...] Here is the summary with links: - [net,v2] netlink: avoid hashing the network namespace pointer https://git.kernel.org/netdev/net/c/f88bb3606e4b You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html