CVE-2022-49786

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> blk-cgroup: properly pin the parent in blkcg_css_online<br /> <br /> blkcg_css_online is supposed to pin the blkcg of the parent, but<br /> 397c9f46ee4d refactored things and along the way, changed it to pin the<br /> css instead. This results in extra pins, and we end up leaking blkcgs<br /> and cgroups.