CVE-2025-22012

Summary

In the Linux kernel, the following vulnerability has been resolved:

Revert "arm64: dts: qcom: sdm845: Affirm IDR0.CCTW on apps_smmu"

There are reports that the pagetable walker cache coherency is not a given across the spectrum of SDM845/850 devices, leading to lock-ups and resets. It works fine on some devices (like the Dragonboard 845c, but not so much on the Lenovo Yoga C630).

This unfortunately looks like a fluke in firmware development, where likely somewhere in the vast hypervisor stack, a change to accommodate for this was only introduced after the initial software release (which often serves as a baseline for products).

Revert the change to avoid additional guesswork around crashes.

This reverts commit 6b31a9744b8726c69bb0af290f8475a368a4b805.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux6b31a9744b8726c69bb0af290f8475a368a4b805 < 9e6e9fc90258a318d30b417bcccda908bb82ee9daffected
LinuxLinux6b31a9744b8726c69bb0af290f8475a368a4b805 < f00db31d235946853fb430de8c6aa1295efc8353affected
LinuxLinux6.13affected
LinuxLinux0 < 6.13unaffected
LinuxLinux6.13.9 <= 6.13.*unaffected
LinuxLinux6.14 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References