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=-4.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 5E6DBC433E3 for ; Mon, 20 Jul 2020 01:27:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 474BC20B1F for ; Mon, 20 Jul 2020 01:27:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726735AbgGTB1a (ORCPT ); Sun, 19 Jul 2020 21:27:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726225AbgGTB1a (ORCPT ); Sun, 19 Jul 2020 21:27:30 -0400 Received: from shards.monkeyblade.net (shards.monkeyblade.net [IPv6:2620:137:e000::1:9]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E810C0619D2; Sun, 19 Jul 2020 18:27:29 -0700 (PDT) Received: from localhost (unknown [IPv6:2601:601:9f00:477::3d5]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id BDD691285097F; Sun, 19 Jul 2020 18:27:28 -0700 (PDT) Date: Sun, 19 Jul 2020 18:27:27 -0700 (PDT) Message-Id: <20200719.182727.141244810520299886.davem@davemloft.net> To: hch@lst.de Cc: vyasevich@gmail.com, nhorman@tuxdriver.com, marcelo.leitner@gmail.com, kuba@kernel.org, David.Laight@ACULAB.COM, linux-sctp@vger.kernel.org, netdev@vger.kernel.org Subject: Re: do a single memdup_user in sctp_setsockopt v2 From: David Miller In-Reply-To: <20200719072228.112645-1-hch@lst.de> References: <20200719072228.112645-1-hch@lst.de> X-Mailer: Mew version 6.8 on Emacs 26.3 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Sun, 19 Jul 2020 18:27:29 -0700 (PDT) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Christoph Hellwig Date: Sun, 19 Jul 2020 09:21:37 +0200 > here is a resend of my series to lift the copy_from_user out of the > individual sctp sockopt handlers into the main sctp_setsockopt > routine. > > Changes since v1: > - fixes a few sizeof calls. > - use memzero_explicit in sctp_setsockopt_auth_key instead of special > casing it for a kzfree in the caller > - remove some minor cleanups from sctp_setsockopt_autoclose to keep > it closer to the existing version > - add another little only vaguely related cleanup patch This is all very mechanical and contained to the sockopt code of SCTP, so I reviewed this a few times and applied it to net-next. Thanks Christoph!