PT-2025-38372 · Linux+5 · Linux Kernel+5

Published 2022-12-28 · Updated 2026-03-14 · CVE-2023-53393

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 versions prior to 6.1.0-rc4 for upstream base 2022 11 10 16 12 #1

Description A flaw exists in the Linux kernel's RDMA/mlx5 subsystem related to the handling of port numbers within the mlx5 ib get hw stats() function. Specifically, when used for a device (port num = 0), incorrect counter handling occurs, and subsequent functions assume port num is greater than or equal to 1, potentially leading to a page fault and system crash (oops).

Recommendations Update to a version newer than 6.1.0-rc4 for upstream base 2022 11 10 16 12 #1.

Exploit

Fix

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-119

CWE-787

Related Identifiers

ALSA-2025_16880

BDU:2026-03279

CESA-2023_2951

CVE-2023-53393

RHSA-2023:2458

RHSA-2023:2951

RHSA-2023_2458

RHSA-2023_2951

SUSE-SU-2025:03614-1

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Centos

Debian

Linux Kernel

Red Hat

Suse

References · 990

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53393.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2025:3761-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53393 · Vendor Advisory
• https://git.kernel.org/stable/c/9a97da4674b890b4c28f5f12beba8c33a9cd2f49 · Patch
• https://bdu.fstec.ru/vul/2026-03279 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-53393 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53393 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:3716-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53393 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:03628-1 · Vendor Advisory
• https://git.kernel.org/stable/c/8d89870d63758363b07ace5c2df82d6bf865f78b · Patch
• https://git.kernel.org/stable/c/e597b003c736217b0c99ccf1b240c25009105238 · Patch
• https://ubuntu.com/security/CVE-2023-53393 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2023-53393 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53393 · Vendor Advisory