CVE-2026-93114
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Received - Intake
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Vulnerability report for CVE-2026-93114, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-17
Last updated on: 2026-09-17
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
platform/surface: acpi-notify: Check ACPI companion before use
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.
san_probe() dereferences the result of ACPI_COMPANION() when installing
the GSBUS address space handler, so force-binding the driver to a device
without an ACPI companion leads to a NULL pointer dereference. The
dereference was introduced when the probe function was switched from
ACPI_HANDLE() to ACPI_COMPANION().
Check the ACPI companion against NULL and return -ENODEV when it is
missing, like commit e4865a56d013 ("ACPI: driver: Check ACPI_COMPANION()
against NULL during probe") does for the core ACPI platform drivers.
CVSS Scores
EPSS Scores
| Probability: | |
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Meta Information
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
