PT-2025-38384 · Linux+3 · Linux Kernel+3

Published 2023-02-03 · Updated 2025-09-29 · CVE-2023-53402

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 exists in the kernel/printk/index.c file due to improper handling of debugfs lookup(). Specifically, the result of debugfs lookup() requires a call to dput() to prevent memory leaks over time. The issue is addressed by using debugfs lookup and remove() which handles the necessary logic.

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

Exploit

Missing Release of Resource after Effective Lifetime

Memory Leak

Weakness Enumeration

CWE-772

CWE-401

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

BDU:2026-04591

CVE-2023-53402

RHSA-2024:9315

RHSA-2024_9315

Affected Products

Astra Linux

Debian

Linux Kernel

Red Hat

References · 24

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53402.json · Exploit
• https://git.kernel.org/stable/c/55bf243c514553e907efcf2bda92ba090eca8c64 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53402 · Security Note
• https://git.kernel.org/stable/c/13969236b6900b5a3625ad2193569588e978f1cc · Patch
• https://git.kernel.org/stable/c/2e07fa2e30d48d24a791483774a3d4b76769e0cf · Patch
• https://security-tracker.debian.org/tracker/CVE-2023-53402 · Vendor Advisory
• https://git.kernel.org/stable/c/c578a68ffcdc2e8c72556bebdaae2b7500398e81 · Patch
• https://bdu.fstec.ru/vul/2026-04591 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53402 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53402 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53402 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2023-53402 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53402 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-53402 · Vendor Advisory
• https://docs.bell-sw.com/security/cves/CVE-2023-53402 · Note