CVE-2026-93038

kernel: iio: dac: ad5686: missing NULL check on match data

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 17, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel's AD5686 digital-to-analog converter (DAC) driver. A local user can exploit this vulnerability by attempting to bind the driver to an unrecognized device name through the system file interface (sysfs). This trigger leads to an invalid null pointer access due to missing device match data, resulting in a system crash and Denial of Service (DoS).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference