linux-kernel - Re: [PATCH 4.9 086/104] arm64: kasan: avoid bad virt_to

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Date:   Mon, 9 Oct 2017 09:33:01 -0700
From:   Laura Abbott <labbott@...hat.com>
To:     "Levin, Alexander (Sasha Levin)" <alexander.levin@...izon.com>,
        Mark Rutland <mark.rutland@....com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>
Subject: Re: [PATCH 4.9 086/104] arm64: kasan: avoid bad virt_to_pfn()

On 10/06/2017 08:10 PM, Levin, Alexander (Sasha Levin) wrote:
> On Fri, Oct 06, 2017 at 07:13:22PM +0100, Mark Rutland wrote:
>> Hi Greg,
>>
>> On Fri, Oct 06, 2017 at 10:52:04AM +0200, Greg Kroah-Hartman wrote:
>>> 4.9-stable review patch.  If anyone has any objections, please let me know.
>>
>> I'm a little confused as to why this is being backported, given it
>> wasn't Cc'd stable or marked as a fix.
>>
>> The lm_alias() helper was only introduced in v4.10, and I don't recall
>> seeing that backported.
>>
>> What's going on here?
> 
> Mark,
> 
> We are experimenting with using neural network to aid with patch
> selection for stable kernel trees. There are quite a few commits that
> were not marked for stable, but are stable material, and we're trying
> to get them into their appropriate kernel trees.
> 

Apart from the practical which has been covered, I'd be interested
in hearing about the details of how this works if you can share
them.

Thanks,
Laura