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 78DAD149C69 for ; Tue, 24 Sep 2024 09:03:41 +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=1727168621; cv=none; b=qEuPqcLGka3hseNQBN7w5mR0di0GkkExFNQyNmHo8F2dGEilbTz9wJxDuOZwazytfnze8AiVhQZjhdi9RmSobWVxC3PIHnOqflOCb2hxXl6iZ4i3Ti4hdmfQN2qudDFrJgwpCfFjXDM19MUBMIF25RUay9bP1wpsjFOyoKUZkQw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727168621; c=relaxed/simple; bh=p8nbCGai57reXfPOXsWJ7pPJbBAt7uEKGiLBqdJnJps=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=MGU540JfkkuitZgjA5zb6/YdGHqzFIhrH7GoPMekTw8PObgNKDDR+ik+JGMgTNdvMcz1NvO/p6f5CLvAUy7KQY6wqmjiBVjtoU7KP50efonsxrrjEaV9Q7ic4vVesD3BeMUo2F5giWqJUlXArsep+Q+DkabLLeb/gmqIJ4fwf8o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=140cO1Hu; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="140cO1Hu" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 376AEC4CEC5; Tue, 24 Sep 2024 09:03:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1727168621; bh=p8nbCGai57reXfPOXsWJ7pPJbBAt7uEKGiLBqdJnJps=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=140cO1HuzU17XCk2Y8kQ6+GmhGG3ySdC/KGE/xseZ0a/vZna3mgv0FIumfY/vMrBt WsVPSm4+r4cY7PbTomDIXBJWqVateWuRdY7TAA42/ERP8hqfRT7zQ0njmjpKkwUtRV RJlsYRNOhnRHDlYfBSXm7MWCuneR6GOdPd/XJYa0= Date: Tue, 24 Sep 2024 11:03:36 +0200 From: Greg KH To: Yu Kuai Cc: yangerkun@huawei.com, chuck.lever@oracle.com, brauner@kernel.org, sashal@kernel.org, Coly Li , "yukuai (C)" , linux-kernel@vger.kernel.org, cve@kernel.org Subject: Re: CVE-2024-46701: libfs: fix infinite directory reads for offset dir Message-ID: <2024092400-appointee-sensation-ddb1@gregkh> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Sep 24, 2024 at 03:35:33PM +0800, Yu Kuai wrote: > Hi, all! > > This is a request to close this CVE. > > First of all, I think this really is not a kernel BUG, the deadloop > only exist in user side and user must rename between each readdir > syscall: > > while (readdr() > 0) > rename() Sounds like a real thing that users can do, so why does this not fit the definition of "vulnerability" as documented by cve.org? > On the other hand, v6.6 is affected by this CVE, and this fix can't > be backported to v6.6 because the patchset [1] must be backported first > to expand offset from 32-bit to 64-bit.(This kind of refactor will > break kabi, hence it's not acceptable in our downstream kernels) That's your business decision, and does not affect if we do, or do not, assign a CVE at all. Go work with your management if you wish to change this as it does not pertain to the community in any way. thanks, greg k-h