In the Linux kernel, the following vulnerability has been resolved: block: fix memory leak in diskregisterindependentaccessranges kobjectinitandadd() takes reference even when it fails. According to the doc of kobjectinitandadd() If this function returns an error, kobjectput() must be called to properly clean up the memory associated with the object. Fix this issue by adding kobjectput(). Callback function blkiarangessysfsrelease() in kobject_put() can handle the pointer "iars" properly.