PT-2025-38461 · Linux+4 · Linux Kernel+4

Published 2023-08-16 · Updated 2025-11-19 · CVE-2023-53442

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel contains an issue where ADQ and switchdev modes are not supported simultaneously. Enabling both modes at the same time can lead to a null pointer dereference. To prevent this, checks are implemented to block switchdev mode when ADQ is active and vice versa.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALSA-2025_16880

BDU:2025-12974

CESA-2024_3138

CVE-2023-53442

RHSA-2024:2394

RHSA-2024:3138

RHSA-2024_2394

RHSA-2024_3138

SUSE-SU-2025:03600-1

SUSE-SU-2025:03615-1

SUSE-SU-2025:03634-1

SUSE-SU-2025:20851-1

SUSE-SU-2025:20861-1

SUSE-SU-2025:20870-1

SUSE-SU-2025:20898-1

SUSE-SU-2025:3751-1

SUSE-SU-2025:3761-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4141-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Suse

References · 1988

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53442.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-53442 · Security Note
• https://git.kernel.org/stable/c/24f0d69da35d812b3a1104918014a29627140cb1 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:20898-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://git.kernel.org/stable/c/1c82d1b736ce85e77fd4da05eca6f1f4a52a2bc3 · Patch
• https://ubuntu.com/security/CVE-2023-53442 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-12974 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:20861-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53442 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4141-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03600-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4057-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53442 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20870-1 · Vendor Advisory