Messages in this thread | | | From | "PaX Team" <> | Date | Mon, 04 May 2015 23:50:14 +0200 | Subject | Re: [PATCH v2 2/4] mm/page_alloc.c: add config option to sanitize freed pages |
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On 4 May 2015 at 23:16, Anisse Astier wrote:
> @@ -960,9 +966,15 @@ static int prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags, > kernel_map_pages(page, 1 << order, 1); > kasan_alloc_pages(page, order); > > +#ifndef CONFIG_SANITIZE_FREED_PAGES > + /* SANITIZE_FREED_PAGES relies implicitly on the fact that pages are > + * cleared before use, so we don't need gfp zero in the default case > + * because all pages go through the free_pages_prepare code path when > + * switching from bootmem to the default allocator */ > if (gfp_flags & __GFP_ZERO) > for (i = 0; i < (1 << order); i++) > clear_highpage(page + i); > +#endif
this hunk should not be applied before the hibernation fix otherwise bisect will break.
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