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 2DCC234DCD6 for ; Thu, 27 Aug 2026 20:01:12 +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=1787860875; cv=none; b=Q62hNTLWXOhtQcAP07c11tZoZ1Xn+i2DqsofMUfjwV8cnGGu6UvjqeD3BncvirONx5vWtYQ5Ax2jr4gx0TX1YBCTTcNUryuWEdfYLXr5ds1QsO8PzzanP66DkpINihsOZhmt6xoluKsGB39Wbq1C0Suvnq4047xRuZ4lgDsLbdk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787860875; c=relaxed/simple; bh=w8etpI+fi8QjNcBJ6zpDRLPcvm1NtG7l5nq7Xx0tuu4=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=ffY6E8mlsYvoERroa1GZ/zENulbE6/8xJIcroH39/2vsdaKR6UdL5ZnUiLUXZP4NMhrONbmmOtVpe+xl9JjzWH/ay4R9beZ7ZxX3R+nv7y1pTr8rkkGZtYq9iVROVwxfR3PKUs9REjDl1z38NepuILs3DnLq9Q7Fm7eMxkbey30= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Hflruq4X; 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="Hflruq4X" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A596E1F000E9; Thu, 27 Aug 2026 20:01:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787860871; bh=FnuRgtZKBe1bGu+0f9bgtpxX7cDVBFO52LLN7qA+nSI=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=Hflruq4XXX0TiUfGvnyd12/08jXV5h08aA4IddTHPirVHJNk5yg2HIJiPkhjffbiy xV6o+sTA682khx+9Om2xlV8D/pIMb4UyMhdTauZj3K3NwG136mLTaPjHLI7mt/eStv 04oIwk+6hNRTAQKipNKHBmMJudYMzj8lpXVCov4opxwWaK+Y+R7789vWw9e4+Ec33N QCXMICnUAESJsAKo0EyFfXTGK9/UyZIM1fN8fZc3/YolUDK++7eHqjvkOPahnv4PmT VUD0xlvxm/8oFFPnsvKKmlUTwrOvR6yHvZ0sbzE2jwMnhuD9pANp8mmcT+rAZ+wk4y MdCrjP0qNSVeg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 567653809A8D; Thu, 27 Aug 2026 20:00:18 +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] net/sched: sch_htb: limit htb_classify inner-class filter hops From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178786081689.1822702.7289627258613833642.git-patchwork-notify@kernel.org> Date: Thu, 27 Aug 2026 20:00:16 +0000 References: <20260826143339.271935-1-victor@mojatatu.com> In-Reply-To: <20260826143339.271935-1-victor@mojatatu.com> To: Victor Nogueira Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, jhs@mojatatu.com, jiri@resnulli.us, horms@kernel.org, netdev@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Wed, 26 Aug 2026 11:33:39 -0300 you wrote: > From: Jamal Hadi Salim > > htb_classify() follows each filter-selected inner class by switching > to cl->filter_list, but never bounds the number of hops. A filter on > an inner class can point back to itself or to another inner class that > points back, creating an infinite loop in the packet classification > path with the qdisc lock held and BH disabled — a soft lockup / panic > from a single packet. > > [...] Here is the summary with links: - [net,v2] net/sched: sch_htb: limit htb_classify inner-class filter hops https://git.kernel.org/netdev/net/c/729c4896ab82 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html