diff options
| -rw-r--r-- | mm/page_alloc.c | 2 | ||||
| -rw-r--r-- | mm/page_poison.c | 4 |
2 files changed, 5 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index ef99971c13dd..8e6932a140b8 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1922,8 +1922,8 @@ inline void post_alloc_hook(struct page *page, unsigned int order, arch_alloc_page(page, order); kernel_map_pages(page, 1 << order, 1); - kernel_poison_pages(page, 1 << order, 1); kasan_alloc_pages(page, order); + kernel_poison_pages(page, 1 << order, 1); set_page_owner(page, order, gfp_flags); } diff --git a/mm/page_poison.c b/mm/page_poison.c index aa2b3d34e8ea..6cfa8e7d7213 100644 --- a/mm/page_poison.c +++ b/mm/page_poison.c @@ -6,6 +6,7 @@ #include <linux/page_ext.h> #include <linux/poison.h> #include <linux/ratelimit.h> +#include <linux/kasan.h> static bool want_page_poisoning __read_mostly; @@ -34,7 +35,10 @@ static void poison_page(struct page *page) { void *addr = kmap_atomic(page); + /* KASAN still think the page is in-use, so skip it. */ + kasan_disable_current(); memset(addr, PAGE_POISON, PAGE_SIZE); + kasan_enable_current(); kunmap_atomic(addr); } |