X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=mm%2Fkasan%2Fgeneric.c;h=4d837ab83f0834e3d0d62ad96bcb4bd09fd01e28;hb=72b45857b7241305e362b85255559203d2635fd4;hp=5b4c97baa656497140888b42e5e6a93f281e263d;hpb=7b82e90411826deee07c180ec35f64d31051d154;p=platform%2Fkernel%2Flinux-starfive.git

diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c
index 5b4c97b..4d837ab 100644
--- a/mm/kasan/generic.c
+++ b/mm/kasan/generic.c
@@ -130,9 +130,10 @@ static __always_inline bool memory_is_poisoned_n(const void *addr, size_t size)
 	if (unlikely(ret)) {
 		const void *last_byte = addr + size - 1;
 		s8 *last_shadow = (s8 *)kasan_mem_to_shadow(last_byte);
+		s8 last_accessible_byte = (unsigned long)last_byte & KASAN_GRANULE_MASK;
 
 		if (unlikely(ret != (unsigned long)last_shadow ||
-			(((long)last_byte & KASAN_GRANULE_MASK) >= *last_shadow)))
+			     last_accessible_byte >= *last_shadow))
 			return true;
 	}
 	return false;