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SubjectRe: [PATCH v4] mm/ksm: Fix NULL pointer dereference when KSM zero page is enabled
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> to a crash when we access vm_mm(its offset is 0x40) later in

Would the text variant “… vm_mm (its …” be a bit nicer?



> +++ b/mm/ksm.c
> @@ -2112,8 +2112,15 @@ static void cmp_and_merge_page(struct page *page, struct rmap_item *rmap_item)

> + if (vma)
> + err = try_to_merge_one_page(vma, page,
> + ZERO_PAGE(rmap_item->address));

Can the parameter alignment trigger further software development considerations
for such a function call?

Regards,
Markus

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