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Date: Mon, 14 Sep 2026 23:11:18 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Gregory Price <gourry@gourry.net>
Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
 linux-kernel@vger.kernel.org, kernel-team@meta.com, liam@infradead.org,
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 peterx@redhat.com, jgg@ziepe.ca, david@kernel.org, sashiko-bot
 <sashiko-bot@kernel.org>, stable@vger.kernel.org
Subject: Re: [PATCH] proc/task_mmu: handle special PMDs in clear_refs and
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On Tue, 15 Sep 2026 01:19:50 -0400 Gregory Price <gourry@gourry.net> wrote:

> > > Fixes: 3c8e44c9b369 ("mm: mark special bits for huge pfn mappings when inject")
> > > Cc: <stable@vger.kernel.org> # v6.19+
> > 
> > Why cc:stable?  Is a crafted test driver the only way of hitting this?
> > 
> 
> Technically reachable via mshv_vtl_low, so i tagged it stable.

I have no idea what this means, but I pasted it in ;)

> It's hard to make a judgment call on some of these - so I err on the
> side of backporting.  Feel free to drop stable if you think it's not
> worth it.

I retained the cc:stable.  It's disturbing to leave known bugs in there
because we *think* nobody can reach them.  What if we're wrong about that?