From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98867C43144 for ; Thu, 28 Jun 2018 22:39:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4E956276C6 for ; Thu, 28 Jun 2018 22:39:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4E956276C6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936105AbeF1WjM (ORCPT ); Thu, 28 Jun 2018 18:39:12 -0400 Received: from mx2.suse.de ([195.135.220.15]:43148 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S934984AbeF1WjK (ORCPT ); Thu, 28 Jun 2018 18:39:10 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 5BE2CAD2D; Thu, 28 Jun 2018 22:39:08 +0000 (UTC) Date: Fri, 29 Jun 2018 00:39:06 +0200 From: "Luis R. Rodriguez" To: Waiman Long Cc: "Luis R. Rodriguez" , Kees Cook , Andrew Morton , Jonathan Corbet , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-doc@vger.kernel.org, Al Viro , Matthew Wilcox , "Eric W. Biederman" , Takashi Iwai , Davidlohr Bueso Subject: Re: [PATCH v8 2/5] ipc: IPCMNI limit check for semmni Message-ID: <20180628223906.GB331@wotan.suse.de> References: <1529317698-16575-1-git-send-email-longman@redhat.com> <1529317698-16575-3-git-send-email-longman@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1529317698-16575-3-git-send-email-longman@redhat.com> User-Agent: Mutt/1.6.0 (2016-04-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 18, 2018 at 06:28:15PM +0800, Waiman Long wrote: > For SysV semaphores, the semmni value is the last part of the 4-element > sem number array. To make semmni behave in a similar way to msgmni and > shmmni, we can't directly use the _minmax handler. Instead, a special > sem specific handler is added to check the last argument to make sure > that it is limited to the [0, IPCMNI] range. An error will be returned > if this is not the case. Sorry my time has run out, and will be on vacation until July 10th. If this can wait until then then great, otherwise hopefully Kees can take a look. It would be wonderful to get Eric's review on this as well. Luis