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 679D51465AD; Wed, 5 Mar 2025 01:40:00 +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=1741138801; cv=none; b=HptR0/XoMc7Fo2POM7RtAZ36iPFhAsNwnAj3NzmvVD/9BEmcpgE5kNng1qCM2+wiola4EgQPGbbM+l4OVFMBR6r4GoC+PC9SWmyVfgw+ue6nPtCB2bDJPAhE6R/Bq58NNMdFq8aWQmB+kWQYzRF0CV5zvS/ZsYx7iMtK+nJA73I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741138801; c=relaxed/simple; bh=oOvMUUvzPlSI6Esbr6v90IW10CKv7Um1KVExyPBcoiA=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=kQW9vS+JmxlmO3HrNChlVWEKfLlqJCJGTJokyGT43io4/6oOzQzIZOAT0P9H14LbTUsEIUV6x7rn4fCm5uao7aGddj/QHKBDpANuCudNZNNeqQ4V+S7BFwA3VeKOhrYItegP+mIcr9uHTOhhE7bPDzjDoW73zBdKc8Lwj1pKM10= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=opu1XT/+; 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="opu1XT/+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B7568C4CEE5; Wed, 5 Mar 2025 01:40:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741138800; bh=oOvMUUvzPlSI6Esbr6v90IW10CKv7Um1KVExyPBcoiA=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=opu1XT/+NNdWPD3XQjRKQLHAPbK/5ZrqNDJb/KqwDGlC6wf1KUZJm/4FqL58wjBAj p2ECPfhCEbd36cOrF8JGfY5hU1XLuSXFEYvDX/1TkpN7kZiFG18zlz41jfWWswyGJZ IY3ZB0XMoSFPU5TYofiBd9Ytpn/S2mqlHr0luqfQKSdAAyGd7xLrTl+KakhpYgWQtV WOhxxusGUWhj+WvSPEnIR+uH+Oo7Zwg2McMdg/XKN0rsOGAtRg/btZL8iWZ3kmd8ni p6RE6gKJi2OUpx40lBoacblDdMIroL7wBhqBvyeqW+Mx3+6JHRIvdE+SVIXEb3GnYq 7WxXLjkVOFsoA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id EB152380CFEB; Wed, 5 Mar 2025 01:40:34 +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] mptcp: fix 'scheduling while atomic' in mptcp_pm_nl_append_new_local_addr From: patchwork-bot+netdevbpf@kernel.org Message-Id: <174113883377.363569.807347823586416499.git-patchwork-notify@kernel.org> Date: Wed, 05 Mar 2025 01:40:33 +0000 References: <20250303-net-mptcp-fix-sched-while-atomic-v1-1-f6a216c5a74c@kernel.org> In-Reply-To: <20250303-net-mptcp-fix-sched-while-atomic-v1-1-f6a216c5a74c@kernel.org> To: Matthieu Baerts Cc: mptcp@lists.linux.dev, martineau@kernel.org, geliang@kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kjlx@templeofstupid.com, stable@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Mon, 03 Mar 2025 18:10:13 +0100 you wrote: > From: Krister Johansen > > If multiple connection requests attempt to create an implicit mptcp > endpoint in parallel, more than one caller may end up in > mptcp_pm_nl_append_new_local_addr because none found the address in > local_addr_list during their call to mptcp_pm_nl_get_local_id. In this > case, the concurrent new_local_addr calls may delete the address entry > created by the previous caller. These deletes use synchronize_rcu, but > this is not permitted in some of the contexts where this function may be > called. During packet recv, the caller may be in a rcu read critical > section and have preemption disabled. > > [...] Here is the summary with links: - [net] mptcp: fix 'scheduling while atomic' in mptcp_pm_nl_append_new_local_addr https://git.kernel.org/netdev/net/c/022bfe24aad8 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html