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Date: Thu, 14 Mar 2019 23:36:38 +0800 From: Jason Yan <yanaijie@...wei.com> To: Greg KH <gregkh@...uxfoundation.org> 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 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 > > . >
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