VDB-321109 · CVE-2025-38663 · Nessus 276629

Linux Kernel up to 6.1.147/6.6.100/6.12.40/6.15.8 nilfs2 assertion

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5.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.1.147/6.6.100/6.12.40/6.15.8. It has been classified as critical. This affects an unknown function of the component nilfs2. This manipulation causes assertion. The identification of this vulnerability is CVE-2025-38663. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.147/6.6.100/6.12.40/6.15.8. It has been declared as critical. Affected by this vulnerability is an unknown code block of the component nilfs2. The manipulation with an unknown input leads to a assertion vulnerability. The CWE definition for the vulnerability is CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: nilfs2: reject invalid file types when reading inodes To prevent inodes with invalid file types from tripping through the vfs and causing malfunctions or assertion failures, add a missing sanity check when reading an inode from a block device. If the file type is not valid, treat it as a filesystem error.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2025-38663 since 04/16/2025. Neither technical details nor an exploit are publicly 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 6.1.148, 6.6.101, 6.12.41 or 6.15.9 eliminates this vulnerability. Applying the patch 1a5c204e175a78556b8ef1f7683249fa5197295a/bf585ee198bba4ff25b0d80a0891df4656cb0d08/79663a15a1c70ca84f86f2dbba07b423fe7d5d4f/42cd46b3a8b1497b9258dc7ac445dbd6beb73e2f/4aead50caf67e01020c8be1945c3201e8a972a27 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-2025-1898). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

Debian Linux
Google Cloud Platform
Amazon Linux 2
Red Hat Enterprise Linux
Ubuntu Linux
SUSE Linux
Oracle Linux
NetApp AFF
NetApp ActiveIQ Unified Manager
SUSE openSUSE
Dell Avamar
NetApp FAS
Open Source Linux Kernel
Dell NetWorker
Dell Secure Connect Gateway
Dell ECS

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

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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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Assertion
CWE: CWE-617
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒