diff --git a/include/linux/slab.h b/include/linux/slab.h
index c87e2905bfa7..b261ae6b7086 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -179,7 +179,7 @@ int kmem_cache_shrink(struct kmem_cache *s);
 /*
  * Common kmalloc functions provided by all allocators
  */
-void * __must_check krealloc(const void *objp, size_t new_size, gfp_t flags);
+void * __must_check krealloc(const void *objp, size_t new_size, gfp_t flags) __alloc_size(2);
 void kfree(const void *objp);
 void kfree_sensitive(const void *objp);
 size_t __ksize(const void *objp);
@@ -635,8 +635,10 @@ static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
  * @new_size: new size of a single member of the array
  * @flags: the type of memory to allocate (see kmalloc)
  */
-static inline void * __must_check krealloc_array(void *p, size_t new_n, size_t new_size,
-						 gfp_t flags)
+static inline __alloc_size(2, 3) void * __must_check krealloc_array(void *p,
+								    size_t new_n,
+								    size_t new_size,
+								    gfp_t flags)
 {
 	size_t bytes;