Linux Kernel up to 6.12.38/6.15.6/6.16-rc5 net rtsn_probe null pointer dereference

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

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.12.38/6.15.6/6.16-rc5. It has been classified as critical. This vulnerability affects the function rtsn_probe of the component net. This manipulation causes null pointer dereference. The identification of this vulnerability is CVE-2025-38452. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.12.38/6.15.6/6.16-rc5 and classified as critical. Affected by this vulnerability is the function rtsn_probe of the component net. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: rtsn: Fix a null pointer dereference in rtsn_probe() Add check for the return value of rcar_gen4_ptp_alloc() to prevent potential null pointer dereference.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2025-38452 since 04/16/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 276629 (Ubuntu 24.04 LTS / 25.04 : Linux kernel vulnerabilities (USN-7879-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.39, 6.15.7 or 6.16-rc6 eliminates this vulnerability. Applying the patch 9f260e16b297f8134c5f90bb5a20e805ff57e853/d52eb4f0e0ca9a5213b8795abbeb11a325d9b22d/95a234f6affbf51f06338383537ab80d637bb785 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 (276629) and CERT Bund (WID-SEC-2025-1653). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • RESF Rocky Linux
  • Dell Avamar
  • Open Source Linux Kernel
  • Dell NetWorker
  • 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

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / 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: 276629
Nessus Name: Ubuntu 24.04 LTS / 25.04 : Linux kernel vulnerabilities (USN-7879-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.39/6.15.7/6.16-rc6
Patch: 9f260e16b297f8134c5f90bb5a20e805ff57e853/d52eb4f0e0ca9a5213b8795abbeb11a325d9b22d/95a234f6affbf51f06338383537ab80d637bb785

Timelineinfo

04/16/2025 CVE reserved
07/25/2025 +100 days Advisory disclosed
07/25/2025 +0 days VulDB entry created
01/03/2026 +162 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38452 (🔒)
GCVE (CVE): GCVE-0-2025-38452
GCVE (VulDB): GCVE-100-317749
CERT Bund: WID-SEC-2025-1653 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 07/25/2025 19:33
Updated: 01/03/2026 23:51
Changes: 07/25/2025 19:33 (59), 07/30/2025 02:00 (1), 08/22/2025 19:54 (7), 09/15/2025 05:23 (1), 09/29/2025 02:13 (1), 11/02/2025 13:58 (1), 11/17/2025 06:19 (1), 11/20/2025 02:24 (10), 11/24/2025 19:11 (2), 01/03/2026 23:51 (1)
Complete: 🔍
Cache ID: 216::103

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