CVE-2025-38663
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-22

Last updated on: 2025-11-03

Assigner: kernel.org

Description
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.
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Meta Information
Published
2025-08-22
Last Modified
2025-11-03
Generated
2026-06-16
AI Q&A
2025-08-22
EPSS Evaluated
2026-06-14
NVD
CVE-2025-38663
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux kernel 5.10.244-1
linux kernel 6.1.153-1
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability in the Linux kernel's nilfs2 filesystem involves the lack of a sanity check when reading inodes from a block device. Specifically, invalid file types in inodes were not properly rejected, which could cause malfunctions or assertion failures in the virtual filesystem (vfs). The fix adds a check to treat invalid file types as filesystem errors to prevent these issues.

Impact Analysis

If exploited or triggered, this vulnerability could cause the Linux kernel's filesystem to malfunction or crash due to invalid inode file types passing through the virtual filesystem layer. This could lead to system instability or denial of service conditions.

Mitigation Strategies

Apply the latest Linux kernel update that includes the fix for rejecting invalid file types when reading inodes in nilfs2. This update adds a sanity check to prevent invalid file types from causing malfunctions or assertion failures.

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