diff --git a/mm/vma.c b/mm/vma.c
index de5ebc57e7a5..1be613044b4a 100644
--- a/mm/vma.c
+++ b/mm/vma.c
@@ -1211,6 +1211,11 @@ static struct vm_area_struct *vma_merge_copied_range(struct vma_merge_struct *vm
 
 	vmg->copied_from = vmg->middle;
 	vmg->middle = NULL;
+
+	/* If not registered for remap, uffd context will be cleared. */
+	if (vma_has_uffd_without_event_remap(vmg->copied_from))
+		return NULL;
+
 	return vma_merge_new_range(vmg);
 }
 
diff --git a/tools/testing/vma/include/stubs.h b/tools/testing/vma/include/stubs.h
index be8f5161f92a..f786a585caf0 100644
--- a/tools/testing/vma/include/stubs.h
+++ b/tools/testing/vma/include/stubs.h
@@ -386,6 +386,11 @@ static inline bool is_mergeable_vm_userfaultfd_ctx(struct vm_area_struct *vma,
 	return true;
 }
 
+static inline bool vma_has_uffd_without_event_remap(struct vm_area_struct *vma)
+{
+	return false;
+}
+
 static inline bool anon_vma_name_eq(struct anon_vma_name *anon_name1,
 				    struct anon_vma_name *anon_name2)
 {