CVE-2026-43079 | Linux Kernel up to 6.6.135/6.12.82/6.18.23/6.19.13 uncore_pci_pmu_register privilege escalation (WID-SEC-2026-1385)

A vulnerability has been found in Linux Kernel up to 6.6.135/6.12.82/6.18.23/6.19.13 and classified as critical. The affected element is the function uncore_pci_pmu_register. The manipulation leads to privilege escalation. This vulnerability is documented as CVE-2026-43079. The attack requires being on the local network. There is not any exploit available. The affected component should be upgraded.