Linux Kernel up to 6.4.3 clk memory leak

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.4.3. Impacted is an unknown function of the component clk. This manipulation causes memory leak. This vulnerability is tracked as CVE-2023-53505. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.4.3. It has been declared as critical. Affected by this vulnerability is an unknown code of the component clk. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: clk: tegra: tegra124-emc: Fix potential memory leak The tegra and tegra needs to be freed in the error handling path, otherwise it will be leaked.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2023-53505 since 10/01/2025. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 269615 (Linux Distros Unpatched Vulnerability : CVE-2023-53505), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.251, 5.10.188, 5.15.121, 6.1.39, 6.3.13 or 6.4.4 eliminates this vulnerability. Applying the patch 801c8341f7aff07c494b53e627970b72635af5d3/404e9f741acfb188212f7142d91e247630dd77cc/fd1c117bb5d7e033bf1aa25ac97ff421f81a1199/96bafece6ff380138896f009141fd7337070e680/e969c144d908ea9387442659f103d374c8ff682d/4e59e355f9fcccd9edf65d09f769bb4c163a1c36/53a06e5924c0d43c11379a08c5a78529c3e61595 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (269615) and CERT Bund (WID-SEC-2025-2187). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source Linux Kernel
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 269615
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-53505

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.251/5.10.188/5.15.121/6.1.39/6.3.13/6.4.4
Patch: 801c8341f7aff07c494b53e627970b72635af5d3/404e9f741acfb188212f7142d91e247630dd77cc/fd1c117bb5d7e033bf1aa25ac97ff421f81a1199/96bafece6ff380138896f009141fd7337070e680/e969c144d908ea9387442659f103d374c8ff682d/4e59e355f9fcccd9edf65d09f769bb4c163a1c36/53a06e5924c0d43c11379a08c5a78529c3e61595

Timelineinfo

10/01/2025 Advisory disclosed
10/01/2025 +0 days CVE reserved
10/01/2025 +0 days VulDB entry created
01/23/2026 +114 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53505 (🔒)
GCVE (CVE): GCVE-0-2023-53505
GCVE (VulDB): GCVE-100-326617
CERT Bund: WID-SEC-2025-2187 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 10/01/2025 15:20
Updated: 01/23/2026 05:40
Changes: 10/01/2025 15:20 (58), 10/12/2025 05:34 (2), 11/29/2025 03:40 (7), 01/23/2026 05:40 (10)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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