PT-2025-38390 · Linux+3 · Linux Kernel+3

Published 2023-11-07 · Updated 2026-03-14 · CVE-2023-53408

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 trace/blktrace module 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 memory management 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:2026-06023

CVE-2023-53408

RHSA-2023:6583

RHSA-2023_6583

Affected Products

Astra Linux

Debian

Linux Kernel

Red Hat

References · 25

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53408.json · Exploit
• https://git.kernel.org/stable/c/5286b72fb425291af5f4ca7285d73c16a08d8691 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53408 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53408 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2023-53408 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53408 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-06023 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53408 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-53408 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53408 · Vendor Advisory
• https://git.kernel.org/stable/c/83e8864fee26f63a7435e941b7c36a20fd6fe93e · Patch
• https://osv.dev/vulnerability/CVE-2023-53408 · Vendor Advisory
• https://git.kernel.org/stable/c/3036f5f5ae5210797d95446795df01c1249af9ad · Patch
• https://ubuntu.com/security/CVE-2023-53408 · Vendor Advisory
• https://git.kernel.org/stable/c/a2e4b48d6f9b39aa19bafe223f9dd436a692fc80 · Patch