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Message-ID: <20190312162230.GA4544@kroah.com>
Date:   Tue, 12 Mar 2019 09:22:30 -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 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.

thanks,

greg k-h

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