CVE-2026-63802 blk-cgroup: fix UAF in __blkcg_rstat_flush()

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix UAF in blkcgrstatflush When multiple blkgs in the same blkcg are released concurrently, a use-after-free can occur. The race happens when one blkg's blkcgrstatflush removes another blkg's iostat entries via...

PT-2026-61118

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the blk-cgroup component. This occurs when multiple blkg structures within the same blkcg are released concurrently. A race condition arises when the blk...