1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mmap.c b/mm/mmap.c
index d49736f..d1cf520 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1581,7 +1581,7 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr)
 	if (mm) {
 		/* Check the cache first. */
 		/* (Cache hit rate is typically around 35%.) */
-		vma = mm->mmap_cache;
+		vma = ACCESS_ONCE(mm->mmap_cache);
 		if (!(vma && vma->vm_end > addr && vma->vm_start <= addr)) {
 			struct rb_node * rb_node;