PT-2025-38460 · Linux+5 · Linux Kernel+5

Published 2024-04-30 · Updated 2026-03-14 · CVE-2023-53441

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 memory leak was identified in the cpu map update elem function within the Linux kernel's BPF (Berkeley Packet Filter) cpumap implementation. The issue occurs when kthread stop is called before the execution of a kthread's thread function, preventing the release of allocated resources, specifically rcpu, rcpu->queue, and rcpu->queue->queue. This can lead to a memory leak when updating elements in the CPU map.

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

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

ALSA-2025_16880

BDU:2025-12410

CESA-2024_3138

CVE-2023-53441

RHSA-2024:2394

RHSA-2024:3138

RHSA-2024_2394

RHSA-2024_3138

SUSE-SU-2025:03600-1

SUSE-SU-2025:03614-1

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-2025:4057-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4141-1

Affected Products

Astra Linux

Centos

Debian

Linux Kernel

Red Hat

Suse

References · 1619

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53441.json · Exploit
• https://git.kernel.org/stable/c/d26299f50f5ea8f0aeb5d49e659c31f64233c816 · Patch
• https://bdu.fstec.ru/vul/2025-12410 · Security Note
• https://osv.dev/vulnerability/CVE-2023-53441 · Vendor Advisory
• https://git.kernel.org/stable/c/a957ac8e0b5ffb5797382a6adbafd005a5f72851 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:20898-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53441 · Security Note
• https://git.kernel.org/stable/c/b11a9b4f28cb6ff69ef7e69809e5f7fffeac9030 · Patch
• https://git.kernel.org/stable/c/4369016497319a9635702da010d02af1ebb1849d · Patch
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2023-53441 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20861-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53441 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53441 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53441 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4141-1 · Vendor Advisory