CVE-2026-56944

In smmu_detach_dev of private/google-modules/iommu/arm-smmu-v3/drivers/iommu/arm/arm-smmu-v3/pkvm/arm-smmu-v3.c, there is a possible Use After Free due to a logic error in the code. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.