CVE-2025-38663: debian linux — Fix

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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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
linux	linux_kernel	2.6.30 — 5.4.297
linux	linux_kernel	5.5 — 5.10.241
linux	linux_kernel	5.11 — 5.15.190
linux	linux_kernel	5.16 — 6.1.148
linux	linux_kernel	6.2 — 6.6.101
linux	linux_kernel	6.7 — 6.12.41
linux	linux_kernel	6.13 — 6.15.9
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
debian	debian_linux	All

References

Advisories & Patches

https://git.kernel.org/stable/c/1a5c204e175a78556b8ef1f7683249fa5197295a https://git.kernel.org/stable/c/2cf0c4130bf340be3935d097a3dcbfefdcf65815 https://git.kernel.org/stable/c/42cd46b3a8b1497b9258dc7ac445dbd6beb73e2f https://git.kernel.org/stable/c/4aead50caf67e01020c8be1945c3201e8a972a27 https://git.kernel.org/stable/c/79663a15a1c70ca84f86f2dbba07b423fe7d5d4f https://git.kernel.org/stable/c/98872a934ea6a95985fb6a3655a78a5f0c114e82 https://git.kernel.org/stable/c/bf585ee198bba4ff25b0d80a0891df4656cb0d08 https://git.kernel.org/stable/c/dd298c0b889acd3ecaf48b6e840c9ab91882e342

Other References

https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Frequently Asked Questions

What is CVE-2025-38663? +

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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-38663? +

CVE-2025-38663 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-38663? +

CVE-2025-38663 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-38663? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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