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SubjectRe: [PATCH] mm: Make copy_huge_page() always available
On Mon, 12 Jul 2021 16:32:07 +0100 "Matthew Wilcox (Oracle)" <willy@infradead.org> wrote:

> Rewrite copy_huge_page() and move it into mm/util.c so it's always
> available. Fixes an exposure of uninitialised memory on configurations
> with HUGETLB and UFFD enabled and MIGRATION disabled.

Wait. Exposing uninitialized memory is serious. Can we please include
full info on this flaw and decide whether a -stable backport is justified?
If not, why not, etc?

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