diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 1800907da60c..df6090ba1d0b 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1025,7 +1025,7 @@ static int do_proc_douintvec_minmax_conv(unsigned long *lvalp,
 		    (param->max && *param->max < tmp))
 			return -ERANGE;
 
-		*valp = tmp;
+		WRITE_ONCE(*valp, tmp);
 	}
 
 	return 0;