The Intel IOMMU driver in the Linux kernel allowed SVA on devices lacking PCI/PRI support. A prior commit adjusted the bind path to skip IOPF enablement when PRI was missing but did not update the unbind path accordingly. This caused the unbind path to attempt disabling IOPF on devices where it was never enabled, triggering kernel warnings. The vulnerability was addressed by modifying the unbind path to bypass IOPF operations for SVA domains on non-PRI hardware, maintaining consistency with the bind path.

The vulnerability causes kernel warnings due to an imbalance in IOPF enablement and disablement on certain hardware configurations. There is no indication of code execution, privilege escalation, or denial of service beyond the kernel warnings. No known exploits in the wild have been reported.

A fix has been implemented in the Linux kernel to bypass IOPF operations for SVA domains on non-PRI hardware in both bind and unbind paths. Users should apply the official kernel updates that include this fix once available. Patch status is not yet confirmed in this data; check the vendor advisory for current remediation guidance.