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 A178A3EAC8F; Tue, 31 Mar 2026 14:20:22 +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=1774966822; cv=none; b=Y6riMHgZET5rELu/qdirLAvfGCliBVB7cHvg/d3/EbPGzCBMI5ff4GTzqVUwvywJtmE3/7xO+hZW3XjLMyYmo71YrSqJu6GsVTu+uNNhDtBnwW9JNgGTu7mmzDOkEcX/y5+ozXqLO6X9vyHqm9EfYhJ8/ZoUwaRK0omcAC285ro= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774966822; c=relaxed/simple; bh=bH0arDUlq7YQ9/Dbackf+FEbh9CuPx03+Swmjwpcddc=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=DdaMIhc4iKEC1sYTDiX1sk4FpvLz6Z7VsQBf0tJv52eNrXxiK8osBZl1rxoKps0XDf3yfKJT+AKFND//R4NAZTEpxR8TXn20fsLPiPDEeUoT37emH23GdFp3/M+7E1YNlLQZaXERqaAYe7aiO+XDqgJWOvDnb1ntqpAoLMA7wAg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VFglHuv/; 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="VFglHuv/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 32255C19423; Tue, 31 Mar 2026 14:20:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774966822; bh=bH0arDUlq7YQ9/Dbackf+FEbh9CuPx03+Swmjwpcddc=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=VFglHuv/Uljj8PLu7AN1IJBHaM0B+QQwzXF/nQIYAYvIr4hYujeMubDgMhHIWncR6 whRBFFQiSd2jaspD2t+jSsvHr0LDXENMETdWi2X3WA4jsRt98Eh3tm5vxMkc2xkj75 6A6gZPGhU1TuLb9N9oh3kbWT+ZZPSYdAQ/6ABUsDGsJK5AF5//Cf2M42hHtGT1tw/C bECCXZDF+lBylJPX99AGBLsR3HWgiIDcslhq67RvtdnVdJ72umLRH4uRACM3cEiZ5l UEK/W6qLbzaiAEWTSJ8sYmtcljUOBEFR5gnu77tIFuN/ZUvGxdxBdYIwG4P443KxNC sZD4cBZ6bK1YA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 02DA23809A05; Tue, 31 Mar 2026 14:20:07 +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] bridge: mrp: reject zero test interval to avoid OOM panic From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177496680554.2727366.2524464978514165694.git-patchwork-notify@kernel.org> Date: Tue, 31 Mar 2026 14:20:05 +0000 References: <20260328063000.1845376-1-xmei5@asu.edu> In-Reply-To: <20260328063000.1845376-1-xmei5@asu.edu> To: Xiang Mei Cc: netdev@vger.kernel.org, bridge@lists.linux.dev, horms@kernel.org, razor@blackwall.org, kuba@kernel.org, idosch@nvidia.com, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, bestswngs@gmail.com Hello: This patch was applied to netdev/net.git (main) by Paolo Abeni : On Fri, 27 Mar 2026 23:30:00 -0700 you wrote: > br_mrp_start_test() and br_mrp_start_in_test() accept the user-supplied > interval value from netlink without validation. When interval is 0, > usecs_to_jiffies(0) yields 0, causing the delayed work > (br_mrp_test_work_expired / br_mrp_in_test_work_expired) to reschedule > itself with zero delay. This creates a tight loop on system_percpu_wq > that allocates and transmits MRP test frames at maximum rate, exhausting > all system memory and causing a kernel panic via OOM deadlock. > > [...] Here is the summary with links: - [net,v2] bridge: mrp: reject zero test interval to avoid OOM panic https://git.kernel.org/netdev/net/c/fa6e24963342 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html