PT-2025-38369 · Linux+5 · Linux Kernel+5

Published 2023-11-07 · Updated 2026-03-14 · CVE-2023-53390

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 Linux kernel when using the debugfs lookup() function. Failing to call dput() on the result of debugfs lookup() leads to a memory leak 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

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

ALSA-2025_16880

BDU:2026-05895

CESA-2023_7077

CVE-2023-53390

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

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 · 866

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53390.json · Exploit
• https://cve.org/CVERecord?id=CVE-2023-53390 · Security Note
• https://ubuntu.com/security/CVE-2023-53390 · Vendor Advisory
• https://git.kernel.org/stable/c/8e47e2bf78812adbd73c45c941d3c51add30b58d · Patch
• https://git.kernel.org/stable/c/36c893d3a759ae7c91ee7d4871ebfc7504f08c40 · Patch
• https://git.kernel.org/stable/c/7f1e53f88e8babf293ec052b70aa9d2a3554360c · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53390 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-05895 · Security Note
• https://osv.dev/vulnerability/CVE-2023-53390 · Vendor Advisory
• https://git.kernel.org/stable/c/5a7a9efdb193d3c8a35821548a8e99612c358828 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53390 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53390 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03628-1 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2023-53390 · Vendor Advisory