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Date: Tue, 6 Jan 2026 15:25:51 +0100
From: Greg KH <gregkh@linuxfoundation.org>
To: Quanmin Yan <yanquanmin1@huawei.com>
Cc: cve@kernel.org, linux-cve-announce@vger.kernel.org,
	linux-kernel@vger.kernel.org, pedrodemargomes@gmail.com
Subject: Re: CVE-2025-68211: ksm: use range-walk function to jump over holes
 in scan_get_next_rmap_item
Message-ID: <2026010609-exclusive-graded-7d86@gregkh>
References: <2025121634-CVE-2025-68211-180a@gregkh>
 <02ad8760-0a6c-4a33-88ce-4f6644e1c58a@huawei.com>
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In-Reply-To: <02ad8760-0a6c-4a33-88ce-4f6644e1c58a@huawei.com>

On Tue, Jan 06, 2026 at 09:36:29PM +0800, Quanmin Yan wrote:
> Hi gregkh,
> 
> I don't think this should be classified as a CVE because the
> patch primarily addresses a performance issue in a rare scenario.

But in that "rare scenario" it is a system denial of service, making
ksmd deadlocked.  Isn't that a real issue that was fixed here?

thanks,

greg k-h