From: Thibaut Sautereau <redacted>
Subject: mm/page_alloc: fix __alloc_size attribute for alloc_pages_exact_nid

The second parameter of alloc_pages_exact_nid is the one indicating the
size of memory pointed by the returned pointer.

Link: https://lkml.kernel.org/r/YbjEgwhn4bGblp//@coeus
Fixes: abd58f38dfb4 ("mm/page_alloc: add __alloc_size attributes for better bounds checking")
Signed-off-by: Thibaut Sautereau <redacted>
Acked-by: Kees Cook <redacted>
Cc: Daniel Micay <redacted>
Cc: Levente Polyak <redacted>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/gfp.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/linux/gfp.h~mm-page_alloc-fix-__alloc_size-attribute-for-alloc_pages_exact_nid
+++ a/include/linux/gfp.h

@@ -624,7 +624,7 @@ extern unsigned long get_zeroed_page(gfp
 
 void *alloc_pages_exact(size_t size, gfp_t gfp_mask) __alloc_size(1);
 void free_pages_exact(void *virt, size_t size);
-__meminit void *alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask) __alloc_size(1);
+__meminit void *alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask) __alloc_size(2);
 
 #define __get_free_page(gfp_mask) \
 		__get_free_pages((gfp_mask), 0)

_