diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index df6090ba1d0b..e7409788db64 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1193,9 +1193,9 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table,
 				err = -EINVAL;
 				break;
 			}
-			*i = val;
+			WRITE_ONCE(*i, val);
 		} else {
-			val = convdiv * (*i) / convmul;
+			val = convdiv * READ_ONCE(*i) / convmul;
 			if (!first)
 				proc_put_char(&buffer, &left, '\t');
 			proc_put_long(&buffer, &left, val, false);