From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [62.89.141.173]) (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 4820B1119A; Fri, 3 Jan 2025 09:19:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.89.141.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735895951; cv=none; b=p7b7rKyxk5ut72boUVC1QTO/972AJ+DbDIuE1g41u39Wsnl7IJAIp0a65LvRtZg6m2E5oYYkjAgIrQg+etoo7BtynLLCB9XY0nYVgGJfDESpWmrB8Rm4x365kTqgYU0VrMAYiIEnCTZo4yj4B13yb6c10WRBikJupcx/QX5vta8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735895951; c=relaxed/simple; bh=LoaH5SggD7j/Nmcl8Er330OFbScOCFciTX3gc/Ql5AU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Eej4K6k2snICraOvNE/fh9aBRIKi8AtN9l8k8scytqvEDgwFGZtUq0RQWaZcRTbsPCZOv8V0SBEj86NzSbl2By7PKcu9G0HHdJvuyOwtYlrH5KpBXK8MBFTMLVlN5b31JHir3mDCC/g/pAS22QC/V57MFpVe/SI+a0mv41Gr4ZI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk; spf=none smtp.mailfrom=ftp.linux.org.uk; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b=XpSe/w+F; arc=none smtp.client-ip=62.89.141.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=ftp.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b="XpSe/w+F" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=linux.org.uk; s=zeniv-20220401; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=crNJE83AO+7TdLr8gKwvunqJAJ17AfMSOW25JgwAjp0=; b=XpSe/w+F/s67C64D6bIwEwzWGa XpbUtUcYysvfVnckZA2Kd1lmSKNzEQdL5UYIzy1rc8xbgbUcJQl3gdQRGJDJ2yLAEcL0mvFlvl4CU 4qerDUKRB3AksIZiqTakK0jD1BMPT7+JhGIJtmcj5Y2nZEF0ilQHgerChMVfuC0WFARRFZFJrMsbJ MK/2rlds7Qa4kmByBfgfoz5AM6BvbWgC9nlRl792DxUb7WHwzyI34LZL6Pg5vuR9WnB5prQaA00Ri MnKFLszfXuQS0aiv1/go0iakbDA1gHXgfaBHwWZI/UFROFWn+DnobULLLzy/6wzV80bAQH3QaQRm6 sgDfqGjw==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.98 #2 (Red Hat Linux)) id 1tTdpi-0000000F1tu-0jhl; Fri, 03 Jan 2025 09:19:06 +0000 Date: Fri, 3 Jan 2025 09:19:06 +0000 From: Al Viro To: cheung wall Cc: Christian Brauner , Jan Kara , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: "WARNING in max_vclocks_store" in Linux kernel version 6.13.0-rc2 Message-ID: <20250103091906.GD1977892@ZenIV> 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: Sender: Al Viro On Fri, Jan 03, 2025 at 04:19:35PM +0800, cheung wall wrote: > Hello, > > I am writing to report a potential vulnerability identified in the > Linux Kernel version 6.13.0-rc2. This issue was discovered using our > custom vulnerability discovery tool. > > HEAD commit: fac04efc5c793dccbd07e2d59af9f90b7fc0dca4 (tag: v6.13-rc2) > > Detailed Call Stack: Out of curiosity, what would you expect any of us to be able to do with that information, given that we * have no information about that tool of yours * have no idea how to interpret those call chains * have no way to compare those for different commits etc? Seriously, step back and imagine somebody with zero information about your tool staring at the email you've sent. Al, completely bewildered...