diff -drupN a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
--- a/drivers/pci/pci-sysfs.c	2018-08-06 17:23:04.000000000 +0300
+++ b/drivers/pci/pci-sysfs.c	2022-06-12 05:28:14.000000000 +0300
@@ -566,7 +566,7 @@ static ssize_t driver_override_show(stru
 	ssize_t len;
 
 	device_lock(dev);
-	len = snprintf(buf, PAGE_SIZE, "%s\n", pdev->driver_override);
+	len = sprintf(buf, "%s\n", pdev->driver_override);
 	device_unlock(dev);
 	return len;
 }