CVE-2026-68329 | Linux Kernel up to 7.2-rc4 IOMMU iommu_completion_wait use after free

A vulnerability was found in Linux Kernel up to 6.6.147/6.12.100/6.18.41/7.1.5/7.2-rc4. It has been rated as very critical. This vulnerability affects the function iommu_completion_wait of the component IOMMU. This manipulation causes use after free.

The identification of this vulnerability is CVE-2026-68329. The attack can only be executed locally. There is no exploit available.

Upgrading the affected component is advised.