CVE-2026-72290 | Linux Kernel up to 7.2-rc3 PCI kvm_s390_gisc_register reference count

A vulnerability was found in Linux Kernel up to 7.2-rc3 and classified as problematic. Impacted is the function kvm_s390_gisc_register of the component PCI. The manipulation results in improper update of reference count.

This vulnerability is reported as CVE-2026-72290. The attack can be launched remotely. No exploit exists.

It is suggested to upgrade the affected component.