diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 7b0ffc1c0ea923db25d9c03be39a3c6c143205e7..98d9bba6f4ac37eb384deb75c2e1408f4e780ced 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -733,7 +733,8 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
 	if (result)
 		goto release_ida;
 
-	sprintf(dev->attr_name, "cdev%d_trip_point", dev->id);
+	snprintf(dev->attr_name, sizeof(dev->attr_name), "cdev%d_trip_point",
+		 dev->id);
 	sysfs_attr_init(&dev->attr.attr);
 	dev->attr.attr.name = dev->attr_name;
 	dev->attr.attr.mode = 0444;
@@ -742,7 +743,8 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
 	if (result)
 		goto remove_symbol_link;
 
-	sprintf(dev->weight_attr_name, "cdev%d_weight", dev->id);
+	snprintf(dev->weight_attr_name, sizeof(dev->weight_attr_name),
+		 "cdev%d_weight", dev->id);
 	sysfs_attr_init(&dev->weight_attr.attr);
 	dev->weight_attr.attr.name = dev->weight_attr_name;
 	dev->weight_attr.attr.mode = S_IWUSR | S_IRUGO;