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Review reviewHigh

CVE-2025-38216

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Restore context entry setup order for aliased devices Commit 2031c469f816 ("iommu/vt-d: Add support for static identity domain") changed the context entry setup during domain attachment from a set-and-check policy to a clear-and-reset approach. This inadvertently introduced a regression affecting PCI aliased devices behind PCIe-to-PCI bridges. Specifically, keyboard and touchpad stopped working on several Apple Macbooks with below messages: kernel: platform pxa2xx-spi.3: Adding to iommu group 20 kernel: input: A...

CVSS
7.8
EPSS
0.15%
4.29% percentile
CISA KEV
Not listed
Published
2025.07.04
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.15%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Restore context entry setup order for aliased devices Commit 2031c469f816 ("iommu/vt-d: Add support for static identity domain") changed the context entry setup during domain attachment from a set-and-check policy to a clear-and-reset approach. This inadvertently introduced a regression affecting PCI aliased devices behind PCIe-to-PCI bridges. Specifically, keyboard and touchpad stopped working on several Apple Macbooks with below messages: kernel: platform pxa2xx-spi.3: Adding to iommu group 20 kernel: input: A...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 2031c469f8161abe74189cb74f50da224f340b71 < fb5873b779dd5858123c19bbd6959566771e2e83, >= 2031c469f8161abe74189cb74f50da224f340b71 < d43c81b691813e16a2d08208ce8947aebdab83cd, >= 2031c469f8161abe74189cb74f50da224f340b71 < 320302baed05c6456164652541f23d2a96522c06, >= 6.12, >= 6.12 < 6.12.35, >= 6.13 < 6.15.4
Fixed versions
6.12.35, 6.15.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available
CVE-2025-38216 — Linux Linux, linux kernel | SECUFOCUS NOW