CVE-2026-93115

In the Linux kernel, the following vulnerability has been resolved: platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL 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(), so platform drivers that rely on the existence of a device's ACPI companion object need to verify its presence. mlxbf_pmc_probe() passes the result of ACPI_COMPANION() to acpi_device_hid(), which dereferences it, so force-binding the driver to a device without an ACPI companion leads to a NULL pointer dereference. Accordingly, add a requisite ACPI_COMPANION() check against NULL to the mlxbf-pmc driver and return -ENODEV when the companion is missing.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/71ba8b6e28f7a83b724036f5de07e03bb5473286
https://git.kernel.org/stable/c/950d8e8375f3ff4787de51b7bdf8dd23a3ad6547
https://git.kernel.org/stable/c/a75b84119e56fc34b0f1403f3b93d357a55dabb6
https://git.kernel.org/stable/c/bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0
https://git.kernel.org/stable/c/c38cce70adef874c2a7b5132c14d6c221401deff
https://git.kernel.org/stable/c/d25dd08268aeaceb485189aaa84aa6d68a460291
https://git.kernel.org/stable/c/fdfb736282b9665c0169df0c4152ec91fdea2767

Configurations

No configuration.

History

17 Sep 2026, 17:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 17:18

Updated : 2026-09-17 17:18

NVD link : CVE-2026-93115

Mitre link : CVE-2026-93115

CVE.ORG link : CVE-2026-93115

JSON object : View

Products Affected

No product.

CWE

No CWE.

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