PT-2025-38377 · Linux+5 · Linux Kernel+5

Published 2023-02-02 · Updated 2025-10-23 · CVE-2023-53398

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description The Linux kernel contains a flaw within the mlx5 component related to potential use-after-free in the PTP (Precision Time Protocol) queue FIFO (First-In, First-Out) buffer. Insufficient checks on FIFO indexes during pop operations can lead to this issue, particularly during resynchronization actions. Out-of-order completion queue events (cqe) can also contribute to the problem by causing queue draining and a lack of FIFO pointer validation, specifically when the skb id falls outside the expected range between consumer and producer indexes. A warning mechanism (WARN ON ONCE) has been implemented to detect future occurrences.

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

Exploit

Buffer Overflow

Use After Free

Weakness Enumeration

CWE-119

CWE-1285

CWE-416

Related Identifiers

ALSA-2025_16880

BDU:2026-03339

CESA-2023_7077

CVE-2023-53398

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

SUSE-SU-2025:03615-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Suse

Mlx5

References · 837

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53398.json · Exploit
• https://cve.org/CVERecord?id=CVE-2023-53398 · Security Note
• https://bdu.fstec.ru/vul/2026-03339 · Security Note
• https://git.kernel.org/stable/c/6afdedc4e66e3846ce497744f01b95c34bf39d21 · Patch
• https://ubuntu.com/security/CVE-2023-53398 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53398 · Vendor Advisory
• https://git.kernel.org/stable/c/52e6e7a0bc04c85012a9251c7cf2d444a77eb966 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53398 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53398 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53398 · Vendor Advisory
• https://git.kernel.org/stable/c/3a50cf1e8e5157b82268eee7e330dbe5736a0948 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53398 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53398 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:3761-1 · Vendor Advisory