PT-2025-18843 · Linux+5 · Linux Kernel+5

Published 2023-03-21 · Updated 2026-01-28 · CVE-2023-53079

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 A vulnerability in the Linux kernel has been resolved, related to the net/mlx5 module. The issue occurs when the vport's mc, uc, and multicast rules are not deleted in the teardown path after an EEH (Error Handling) event, causing the kernel to crash when trying to delete these rules during initialization. The fix involves nullifying these rules after deletion to prevent accessing dangling pointers.

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

Exploit

DoS

Improper Initialization

NULL Pointer Dereference

Weakness Enumeration

CWE-665

CWE-476

Related Identifiers

ALSA-2025_16880

BDU:2026-03851

CESA-2023_7077

CVE-2023-53079

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

SUSE-SU-2025:01918-1

SUSE-SU-2025:01966-1

SUSE-SU-2025:01983-1

SUSE-SU-2025:02173-1

SUSE-SU-2025:02262-1

SUSE-SU-2025:2173-1

SUSE-SU-2025_01983-1

SUSE-SU-2025_02173-1

SUSE-SU-2025_02262-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Red Os

Suse

References · 660

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53079.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53079 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53079 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53079 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53079 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53079 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:01966-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-53079 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-03851 · Security Note
• https://git.kernel.org/stable/c/6f5780536181d1d0d09a11a1bc92f22e143447e2 · Patch
• https://git.kernel.org/stable/c/18cead61e437f4c7898acca0a5f3df12f801d97f · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02262-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:01918-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:01983-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02173-1 · Vendor Advisory