CVE-2022-49786

The CVE-2022-49786 issue affects the Linux kernel’s blk-cgroup subsystem. Root cause: blkcg_css_online incorrectly pinned the parent after a 397c9f46 refactor, pinning the css instead of the parent blkcg, which leads to extra pins and leakage of blkcgs and cgroups. Impact stated: leakage of blkcg...