CVE-2023-52984

kernel: net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · March 27, 2025

Updated · June 30, 2026

Description

A flaw was found in the dp83822 module in the Linux kernel. A private data pointer is only initialized by the DP83822 PHY. It is left uninitialized by other smaller models, allowing a NULL pointer dereference to be triggered due to missing checks when interrupts are being configured, causing a crash and resulting in a denial of service.

Statement

This issue has been fixed in Red Hat Enterprise Linux 9.4 via RHSA-2024:2394 [1].

[1]. https://access.redhat.com/errata/RHSA-2024:2394

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