From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: [RFC] [PATCH] net: socket: Fix the wrong returns for recvmsg and sendmsg Date: Tue, 2 Jun 2015 15:27:51 +0900 Message-ID: <20150602062751.GA3912@kroah.com> References: <1433150880-9976-1-git-send-email-zhengjunling@huawei.com> <20150602012154.GB23370@kroah.com> <556D2B8C.9010108@huawei.com> <20150601.222357.122000161676177828.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: zhengjunling@huawei.com, lizefan@huawei.com, viro@zeniv.linux.org.uk, xuhanbing@huawei.com, stable@vger.kernel.org, netdev@vger.kernel.org To: David Miller Return-path: Received: from mail.linuxfoundation.org ([140.211.169.12]:56494 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752142AbbFBG1y (ORCPT ); Tue, 2 Jun 2015 02:27:54 -0400 Content-Disposition: inline In-Reply-To: <20150601.222357.122000161676177828.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-ID: On Mon, Jun 01, 2015 at 10:23:57PM -0700, David Miller wrote: > From: Junling Zheng > Date: Tue, 2 Jun 2015 12:05:32 +0800 > > > So, the problem commit is 281c9c36 (net: compat: Update > > get_compat_msghdr() to match copy_msghdr_from_user() behaviour), > > which fixes db31c55a6fb2 and brings the get_compat_msghdr() in line > > with copy_msghdr_from_user(). > > Upstream this got fixed by: > > 08adb7dabd4874cc5666b4490653b26534702ce0 > > So the part that makes us not unconditionally return -EFAULT needs > to be backported, and that's probably equivalent to the patch > your proposed which therefore should be applied. Ok, thanks, now applied. greg k-h