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Date: Fri, 4 Jan 2019 17:28:02 -0800
From: Andrew Morton <akpm@linux-foundation.org>
Subject: Re: KMSAN: uninit-value in mpol_rebind_mm
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To: Vlastimil Babka <vbabka@suse.cz>
Cc: Dmitry Vyukov <dvyukov@google.com>, syzbot <syzbot+b19c2dc2c990ea657a71@syzkaller.appspotmail.com>, Andrea Arcangeli <aarcange@redhat.com>, Alexander Potapenko <glider@google.com>, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>, LKML <linux-kernel@vger.kernel.org>, Linux-MM <linux-mm@kvack.org>, linux@dominikbrodowski.net, Michal Hocko <mhocko@suse.com>, David Rientjes <rientjes@google.com>, syzkaller-bugs <syzkaller-bugs@googlegroups.com>, xieyisheng1@huawei.com, zhong jiang <zhongjiang@huawei.com>

On Fri, 4 Jan 2019 09:50:31 +0100 Vlastimil Babka <vbabka@suse.cz> wrote:

> > Yes, it doesn't and it's not trivial to do. The tool reports uses of
> > unint _values_. Values don't necessary reside in memory. It can be a
> > register, that come from another register that was calculated as a sum
> > of two other values, which may come from a function argument, etc.
> 
> I see. BTW, the patch I sent will be picked up for testing, or does it
> have to be in mmotm/linux-next first?

I grabbed it.  To go further we'd need a changelog, a signoff,
description of testing status, reviews, a Fixes: and perhaps a
cc:stable ;)