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 3B344199FBA; Fri, 24 Oct 2025 01:20:27 +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=1761268828; cv=none; b=qN2IEugQqiqcMp5dtfZ4qvU+FT8+nzfHnZi5OidEwwzn5z4ttimYFWce41Mdg/oQYIf4smFHEzSGQDYw1E4iZBAyzkQW7aVJePMIT4bJqN83ExxpP12HfljuIYVfmxUezN36h0+yZhGJ/lwSXZ5OYNcuhq4doDXGvPVSQzXKwNk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761268828; c=relaxed/simple; bh=BPvirEaSBDckEVZiZ6jER6Dp8jAo8RcKUhDhY8u7muE=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=pGaspKDrcyFYUcHXtxNYIVPQ07UvZlxLWUxvD6wIlYz9hu8SzesTbWXLkfM2FM8+dw+6IR4fndQPrfBZYfWrg2VhbxWM9a604rC5z2KDiNSWn5SxhufK9OKwZvPuyu6xHvqphs5fuQ5mRsdGET6urTK7bFSOWCa9tm6D/lq6xsE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CuG1926T; 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="CuG1926T" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B7043C4CEE7; Fri, 24 Oct 2025 01:20:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761268827; bh=BPvirEaSBDckEVZiZ6jER6Dp8jAo8RcKUhDhY8u7muE=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=CuG1926TxoongJmbBODTRRVfLrh+4U86vWrJEUqPNbrBF0HsCzkcgMO/JTAIyRTNz uU0Kb2X2mQVIyn/Eh9+l/jn9LEPCyA31l0BHKNyUVNLgoef6BE96GxVBJtVZH5YMcD Z8MvK2V9lcs+srgV33tuLun2YVgnws9TZdw8U83LRyukfZMtgZdawquVO2R+/wV7qW 59XXZCnGO30U/xQ0cUGf5qifuDnZSKtgbhjawq/K3yEQxSVIA8w46ggEZ+CS3oHQvI TuG0oDKDqesrOhQJWkrJ15E69u9SRZ57JjefELhagjpy/n3KkftnXVhlYQmg0bGzma Jh0OQwJdNuqsw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 33EB63809A38; Fri, 24 Oct 2025 01:20:09 +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 V4] usbnet: Prevents free active kevent From: patchwork-bot+netdevbpf@kernel.org Message-Id: <176126880801.3310205.11507768895135874379.git-patchwork-notify@kernel.org> Date: Fri, 24 Oct 2025 01:20:08 +0000 References: <20251022024007.1831898-1-lizhi.xu@windriver.com> In-Reply-To: <20251022024007.1831898-1-lizhi.xu@windriver.com> To: Lizhi Xu Cc: samsun1006219@gmail.com, kuba@kernel.org, ahmed.zaki@intel.com, aleksander.lobakin@intel.com, davem@davemloft.net, edumazet@google.com, horms@kernel.org, kuniyu@amazon.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, sdf@fomichev.me, syzkaller-bugs@googlegroups.com, syzkaller@googlegroups.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Wed, 22 Oct 2025 10:40:07 +0800 you wrote: > The root cause of this issue are: > 1. When probing the usbnet device, executing usbnet_link_change(dev, 0, 0); > put the kevent work in global workqueue. However, the kevent has not yet > been scheduled when the usbnet device is unregistered. Therefore, executing > free_netdev() results in the "free active object (kevent)" error reported > here. > > [...] Here is the summary with links: - [V4] usbnet: Prevents free active kevent https://git.kernel.org/netdev/net/c/420c84c330d1 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html