🔐 CVE Alert

CVE-2026-93115

UNKNOWN 0.0

platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL

CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th

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.

Vendor linux
Product linux
Ecosystems
Industries
Technology
Published Sep 17, 2026
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Affected Versions

Linux / Linux
1a218d312e65ec396b2739056a8ea78493015f21 < 950d8e8375f3ff4787de51b7bdf8dd23a3ad6547 1a218d312e65ec396b2739056a8ea78493015f21 < fdfb736282b9665c0169df0c4152ec91fdea2767 1a218d312e65ec396b2739056a8ea78493015f21 < bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0 1a218d312e65ec396b2739056a8ea78493015f21 < a75b84119e56fc34b0f1403f3b93d357a55dabb6 1a218d312e65ec396b2739056a8ea78493015f21 < 71ba8b6e28f7a83b724036f5de07e03bb5473286 1a218d312e65ec396b2739056a8ea78493015f21 < d25dd08268aeaceb485189aaa84aa6d68a460291 1a218d312e65ec396b2739056a8ea78493015f21 < c38cce70adef874c2a7b5132c14d6c221401deff
Linux / Linux
5.11

References

NVD ↗ CVE.org ↗ EPSS Data ↗
git.kernel.org: https://git.kernel.org/stable/c/950d8e8375f3ff4787de51b7bdf8dd23a3ad6547 git.kernel.org: https://git.kernel.org/stable/c/fdfb736282b9665c0169df0c4152ec91fdea2767 git.kernel.org: https://git.kernel.org/stable/c/bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0 git.kernel.org: https://git.kernel.org/stable/c/a75b84119e56fc34b0f1403f3b93d357a55dabb6 git.kernel.org: https://git.kernel.org/stable/c/71ba8b6e28f7a83b724036f5de07e03bb5473286 git.kernel.org: https://git.kernel.org/stable/c/d25dd08268aeaceb485189aaa84aa6d68a460291 git.kernel.org: https://git.kernel.org/stable/c/c38cce70adef874c2a7b5132c14d6c221401deff