linux-kernel - Re: [PATCH] mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios

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Message-ID: <aDAH7nI8H_JfGExm@localhost.localdomain>
Date: Fri, 23 May 2025 07:30:22 +0200
From: Oscar Salvador <osalvador@...e.de>
To: Ge Yang <yangge1116@....com>
Cc: Muchun Song <muchun.song@...ux.dev>, akpm@...ux-foundation.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org, 21cnbao@...il.com, david@...hat.com,
	baolin.wang@...ux.alibaba.com, liuzixing@...on.cn
Subject: Re: [PATCH] mm/hugetlb: fix kernel NULL pointer dereference when
 replacing free hugetlb folios

On Fri, May 23, 2025 at 11:46:51AM +0800, Ge Yang wrote:
> The implementation of alloc_and_dissolve_hugetlb_folio differs between
> kernel 6.6 and kernel 6.15. To facilitate backporting, I'm planning to
> submit another patch based on Oscar Salvador's suggestion.

If the code differs a lot between a stable version and upstream, the way
to go is to submit a specific patch for the stable one that applies
to that tree, e.g: [PATCH 6.6]...


-- 
Oscar Salvador
SUSE Labs