CVE-2025-38420

kernel: Linux kernel: Denial of Service in carl9170 Wi-Fi driver via ping to failed device

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Severity

Moderate

Red Hat Product Security

5.7

CVSS 3.1

Review impact separately from score.

Published · July 25, 2025

Updated · June 30, 2026

Description

A flaw was found in the Linux kernel's carl9170 Wi-Fi driver. A local or adjacent attacker could trigger a null-pointer dereference by attempting to ping a Wi-Fi device that failed to load its firmware. This issue occurs because the internal workqueue for the device is not properly initialized, leading to a system crash and a 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 · 5.7
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference