CVE-2026-52991 | Linux Kernel up to 6.18.32/7.0.9 CPU0 kernel/cgroup/cgroup.c vfs_rmdir ctx use after free

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.18.32/7.0.9. This vulnerability affects the function vfs_rmdir of the file kernel/cgroup/cgroup.c of the component CPU0. Executing a manipulation of the argument ctx can lead to use after free.

The identification of this vulnerability is CVE-2026-52991. The attack needs to be done within the local network. There is no exploit available.

You should upgrade the affected component.