CVE-2023-54019

In the Linux kernel, the following vulnerability has been resolved: sched/psi: use kernfs polling functions for PSI trigger polling Destroying psi trigger in cgroupfilerelease causes UAF issues when a cgroup is removed from under a polling process. This is happening because cgroup removal causes ...

kernel: kernfs: Fix UAF in polling when open file is released

A use-after-free race condition exists in the linux kernel such that When cgroup.pressure is disabled, it releases PSI triggers via cgroupfilerelease, Frees of-priv through kernfsdrainopenfiles leading to damage to the availability and integrity of the system...