CVE-2026-64227
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-07-24
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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.
Weakness Classification (1)
Affected Software (9)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 5829046825ac89fffc60f2670bc564fda2c0155a < a9451bf561232314755baf69a5916e0ac77f33fc |
| Linux | Linux | 5829046825ac89fffc60f2670bc564fda2c0155a < 34f4d0e4e5065237d15651df759a99e81b7f9f51 |
| Linux | Linux | 5829046825ac89fffc60f2670bc564fda2c0155a < 612ddab8fce04394bd7aebe8e0f2599642e30859 |
| Linux | Linux | 5829046825ac89fffc60f2670bc564fda2c0155a < e4865a56d013e86e46ea6acea15bb6eae01898ff |
| Linux | Linux | 6.7 |
| linux | linux_kernel | 6.7 – 6.12.97 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |