IOMMU Vulnerability in Linux Kernel Affects Apple Devices

CVE-2025-38216

What is CVE-2025-38216?

The vulnerability in the Linux kernel affects the context entry setup order for PCI aliased devices, specifically impacting keyboard and touchpad functionality on several Apple MacBook models. This issue arose from a change in the context entry setup process during domain attachments that inadvertently introduced regressions. Users reported persistent errors while trying to utilize their input devices, with fault messages indicating issues related to PTE read access. To resolve this, a restoration of the previous context setup order is necessary.

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