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=-6.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS 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 C6FF9C43381 for ; Thu, 14 Mar 2019 15:36:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 97CCB217F5 for ; Thu, 14 Mar 2019 15:36:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726872AbfCNPgv (ORCPT ); Thu, 14 Mar 2019 11:36:51 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:4682 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725926AbfCNPgv (ORCPT ); Thu, 14 Mar 2019 11:36:51 -0400 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 8C74BF025F2EFB0FB555; Thu, 14 Mar 2019 23:36:46 +0800 (CST) Received: from [127.0.0.1] (10.177.96.203) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.408.0; Thu, 14 Mar 2019 23:36:40 +0800 Subject: Re: 979d63d50c0c0f7bc537bf821e056cc9fe5abd38 bpf: prevent out of bounds speculation on pointer arithmetic To: Greg KH CC: , Jann Horn , , "zhangyi (F)" , Zhaohongjiang , , References: <5d71646c-f897-2178-9d4a-fababe999f36@huawei.com> <20190312115234.GA29195@kroah.com> <71d3dd3d-7768-63bc-b050-3caafec53d03@huawei.com> <20190312162230.GA4544@kroah.com> <4cff80ab-7f29-8ef4-1d95-a2c0d4c4b9b8@huawei.com> <20190314145707.GA12576@kroah.com> From: Jason Yan Message-ID: <25fdc0b7-c74a-ebb5-7be6-6feb5ade84fa@huawei.com> Date: Thu, 14 Mar 2019 23:36:38 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.5.0 MIME-Version: 1.0 In-Reply-To: <20190314145707.GA12576@kroah.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.96.203] X-CFilter-Loop: Reflected Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 2019/3/14 22:57, Greg KH wrote: > On Thu, Mar 14, 2019 at 10:41:57PM +0800, Jason Yan wrote: >> >> >> On 2019/3/13 0:22, Greg KH wrote: >>> On Tue, Mar 12, 2019 at 10:58:39PM +0800, Jason Yan wrote: >>>> >>>> >>>> On 2019/3/12 19:52, Greg KH wrote: >>>>> On Mon, Mar 11, 2019 at 05:18:33PM +0800, Jason Yan wrote: >>>>>> Hi, Daniel & Greg >>>>>> >>>>>> This patch (979d63d50c0c bpf: prevent out of bounds speculation on pointer >>>>>> arithmetic) was assigned a CVE (CVE-2019-7308) with a high score: >>>>>> >>>>>> CVSS v3.0 Severity and Metrics: >>>>>> Base Score: 9.8 CRITICAL >>>>>> >>>>>> And this patch is not in stable-4.4, would you please backport this patch to >>>>>> 4.4? >>>>> >>>>> For a bit more context, it's also not in 4.14.y, 4.9.y, or 4.4.y. I >>>>> found a backported series for 4.4.y in the SLES kernel tree that I could >>>>> try to import here if it really is a big deal. >>>>> >>>> >>>> I'm sorry that I did not find them. I only know the SLES kernel tree at: >>>> https://github.com/openSUSE/kernel. >>>> Is there another place for the SLES kernel tree? >>> >>> That's the tree you want, look at the SLES branches. I see the patches >>> backported to the SLE12-SP4 branch already, so that is hopefully a >>> working set of patches for 4.4.y. >>> >> >> I checked the SLE12-SP4 branch and the kernel version is 4.12. There is >> still a lot of conflicts even with 4.14.y. So it's hard to backport to >> 4.4.y. I will try to solve the conflicts with 4.14.y but I'm not sure if >> I can solve all the conflicts and finish this job. > > Oops, try looking at the SLE12-SP3 branch, that is 4.4 based. I don't > know if they backported the patches there or not though. > No, SLE12-SP3 branch do not have these patches backported. > thanks, > > greg k-h > > . >