CVE-2026-43253 | Linux Kernel up to 6.6.127/6.12.74/6.18.15/6.19.5 iommu wait_on_sem privilege escalation

A vulnerability marked as critical has been reported in Linux Kernel up to 6.6.127/6.12.74/6.18.15/6.19.5. Affected by this issue is the function wait_on_sem of the component iommu. The manipulation leads to privilege escalation.

This vulnerability is referenced as CVE-2026-43253. The attack needs to be initiated within the local network. No exploit is available.

It is suggested to upgrade the affected component.VulDB Recent EntriesRead More