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 1FC94368D57; Tue, 1 Sep 2026 01:01:06 +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=1788224468; cv=none; b=rb2s5YtuySqSzUQ6HtA7A6+zzqvzEGROEzFu3+7jy/QupgmW/H/bnXvPjQbO98aslNJJ3Xfbu9zXroVGsJEBXwOf5JealcX7p4SSAsdU6Qn9emOMJ1FX6lCk95w2TaPw/CbASYO7KgJLReodi9qOs3mRIrtEuBvyTdurRsE3Vd0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788224468; c=relaxed/simple; bh=mipydyEjHYfdhAPCLXZ66tBI7Sv+IqQT4SHorWwipU0=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=CYkXpyz43n/qgzuX12ClFcv+4b9KURd3FISxnAJOXZ90Kg9FwwvfCccwbL9ezr5n5iebDn//bfhzPOUqBXpfL+872hDHYldoDrQr2gSgE5DQHs7t7le+lz20sq8e+XFJMBIvogF+eDM04zZZbz8kpY7C886hUIarw9wOEDEvZPg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lHXvtnV/; 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="lHXvtnV/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B24891F000E9; Tue, 1 Sep 2026 01:01:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788224466; bh=qb5Sdcffuw6jgiRZLGzjS48W/Bl53rX7hLmSgwGrXEc=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=lHXvtnV/KwfmnGvIuCPc8QYCui78lhSD9v6wbZRsA3zfs8u6Es6YnVE/L0nkuAxZR POcUKleOFGb4p0XCzsiffPx/DSrsti/rkqA3HV8HRkeGzzpb79FNLxO1o3O/BPiHsR KaVPi8XkKqWzOE1oH5yb0hFVSWLMER5bkPoRHJ+gywIktXFPPxCng6kVuppkKcu6yN jbawX6WcYYcpKyfdDOUuc3ahfNJS25hbvmOyX3xGYnJQIbtGlOhwMv40Ute6NbFU7B f+GY2zz9ZBH3/GBVMk/E9v9LQBYl6f5Uz8RcAfG0xl4ImysbF7vvNgy7VoSobndIL7 VfZauIt0tDUZg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id D099B3924A40; Tue, 1 Sep 2026 01:00:10 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net 1/2] ppp: ppp_async: simplify tty disc_data access From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178822440939.861275.10014391745794552179.git-patchwork-notify@kernel.org> Date: Tue, 01 Sep 2026 01:00:09 +0000 References: <20260828073245.126804-1-qingfang.deng@linux.dev> In-Reply-To: <20260828073245.126804-1-qingfang.deng@linux.dev> To: Qingfang Deng Cc: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, kees@kernel.org, jirislaby@kernel.org, linux-ppp@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, syzbot+8e808eb853386f575d86@syzkaller.appspotmail.com Hello: This series was applied to netdev/net.git (main) by Jakub Kicinski : On Fri, 28 Aug 2026 15:32:36 +0800 you wrote: > tty_ldisc_hangup() invokes the hangup callback while holding only a read > lock on tty->ldisc_sem, so it can run concurrently with other line > discipline callbacks. This currently forces async PPP to maintain > separate lifetime protection around tty->disc_data. > > Line discipline close is called under the write lock during hangup > processing. Remove the hangup callback and rely on close for teardown, > as done for SLIP by commit 23c53269f2ba ("slip: remove slip_hangup() to > fix use-after-free in slip_receive_buf()"). This serializes teardown > with all other line discipline operations. > > [...] Here is the summary with links: - [net,1/2] ppp: ppp_async: simplify tty disc_data access https://git.kernel.org/netdev/net/c/9feb069e5ed0 - [net,2/2] ppp: ppp_synctty: simplify tty disc_data access https://git.kernel.org/netdev/net/c/d8d4d1cf40d5 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html