ad_write_user(to, from, n);
@@ -415,6 +417,7 @@ static __must_check __always_inline bool user_access_begin(const void __user *pt
 
 	might_fault();
 
+	barrier_nospec();
 	allow_read_write_user((void __user *)ptr, ptr, len);
 	return true;
 }
@@ -431,6 +434,7 @@ user_read_access_begin(const void __user *ptr, size_t len)
 
 	might_fault();
 
+	barrier_nospec();
 	allow_read_from_user(ptr, len);
 	return true;
 }
-- 
2.51.0[PATCH 6.19 162/781] powerpc/uaccess: Move barrier_nospec() out of allow_read_{from/write}_user()Greg Kroah-Hartman <gregkh@linuxfoundation.org> undefinedstable@vger.kernel.org undefined undefined undefined undefined undefined�[��u