CVE-2025-38698 jfs: Regular file corruption check

Medium 5.5 Published Updated

A missing check for negative file size in the JFS filesystem can lead to operation failures and potential denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2025-38698?

CVE-2025-38698 is a medium-severity vulnerability in Debian Debian Linux, published on 4 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

jfs: Regular file corruption check

The reproducer builds a corrupted file on disk with a negative i_size value. Add a check when opening this file to avoid subsequent operation failures.

Which versions are affected by CVE-2025-38698?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2025-38698?

Apply the vendor's patch.

Is CVE-2025-38698 being exploited?

There is no known exploitation of CVE-2025-38698 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as AZL-66821, AZL-75255, BELL-CVE-2025-38698, DEBIAN-CVE-2025-38698, GHSA-f2mf-895w-7mvj, ROOT-OS-DEBIAN-11-CVE-2025-38698 and 4 more.

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