CVE detail
CVE-2026-64227
In the Linux kernel, the following vulnerability has been resolved: ACPI: driver: Check ACPI_COMPANION() against NULL during probe Since every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), platform drivers that rely on the existence of a device's ACPI companion object should verify its presence. Accordingly, add requisite ACPI_COMPANION() or ACPI_HANDLE() checks against NULL to 13 platform drivers handling core ACPI devices. Also change the value returned by the ACPI thermal zone driver when the device's ACPI companion is not present to -ENODEV for consistency with the other drivers.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 17.9 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 5
- within the 30d window
- Peak daily
- 5
- highest bucket
Evidence
Source links by recency
5 source links · newest first
No excerpt available.
Patchgit.kernel.orgJul 24, 2026, 4:16 PMNo excerpt available.
Patchgit.kernel.orgJul 24, 2026, 4:16 PMNo excerpt available.
Patchgit.kernel.orgJul 24, 2026, 4:16 PMNo excerpt available.
Patchgit.kernel.orgJul 24, 2026, 4:16 PMNo excerpt available.
Patchgit.kernel.orgJul 24, 2026, 4:16 PM
Exploit code
Public exploit repository references
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