Re: [PATCH v4] mm/ksm: Fix NULL pointer dereference when KSM zero page is enabled

[Markus Elfring]

> to a crash when we access vm_mm(its offset is 0x40) later in

Would the text variant ââ vm_mm (its ââ be a bit nicer?


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