CVEvulnerability

CVE-2026-64227

5.5 MEDIUM Published 2026-07-24 Modified 2026-08-13 Official page ↗
Status
Analyzed
Published
2026-07-24
Last modified
2026-08-13
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476

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.

Affected configurations

• linux linux kernel (>= 6.7 < 6.12.97) • linux linux kernel (>= 6.13 < 6.18.40) • linux linux kernel (>= 6.19 < 7.0.11) • linux linux kernel 7.1

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References