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Date: Thu, 14 Mar 2019 07:57:07 -0700 From: Greg KH <gregkh@...uxfoundation.org> To: Jason Yan <yanaijie@...wei.com> Cc: daniel@...earbox.net, Jann Horn <jannh@...gle.com>, ast@...nel.org, "zhangyi (F)" <yi.zhang@...wei.com>, Zhaohongjiang <zhaohongjiang@...wei.com>, netdev@...r.kernel.org, stable@...r.kernel.org Subject: Re: 979d63d50c0c0f7bc537bf821e056cc9fe5abd38 bpf: prevent out of bounds speculation on pointer arithmetic 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. thanks, greg k-h
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