diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index e7c0ecd..8e05c10 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2936,9 +2936,9 @@ static struct r1conf *setup_conf(struct mddev *mddev)
 	if (!conf->barrier)
 		goto abort;
 
-	conf->mirrors = kzalloc(sizeof(struct raid1_info)
-				* mddev->raid_disks * 2,
-				 GFP_KERNEL);
+	conf->mirrors = kzalloc(array3_size(sizeof(struct raid1_info),
+					    mddev->raid_disks, 2),
+				GFP_KERNEL);
 	if (!conf->mirrors)
 		goto abort;
 
@@ -3241,7 +3241,8 @@ static int raid1_reshape(struct mddev *mddev)
 		kfree(newpoolinfo);
 		return ret;
 	}
-	newmirrors = kzalloc(sizeof(struct raid1_info) * raid_disks * 2,
+	newmirrors = kzalloc(array3_size(sizeof(struct raid1_info),
+					 raid_disks, 2),
 			     GFP_KERNEL);
 	if (!newmirrors) {
 		kfree(newpoolinfo);