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CVE-2025-71184

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix NULL dereference on root when tracing inode eviction When evicting an inode the first thing we do is to setup tracin…

Published Jan 31, 2026CWE-476EPSS 0.14%

Overview

CVE-2025-71184 is a medium-severity vulnerability. It was published on January 31, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

btrfs: fix NULL dereference on root when tracing inode eviction

When evicting an inode the first thing we do is to setup tracing for it,

which implies fetching the root's id. But in btrfs_evict_inode() the

root might be NULL, as implied in the next check that we do in

btrfs_evict_inode().

Hence, we either should set the ->root_objectid to 0 in case the root is

NULL, or we move tracing setup after checking that the root is not

NULL. Setting the rootid to 0 at least gives us the possibility to trace

this call even in the case when the root is NULL, so that's the solution

taken here.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/582ba48e4a4c06fef6bdcf4e57b7b9af660bbd0cRefgit.kernel.org/stable/c/64d8abd8c5305795a2b35fc96039d99d34f5e762Refgit.kernel.org/stable/c/99e057f3d3ef24b99a7b1d84e01dd1bd890098daRefgit.kernel.org/stable/c/f157dd661339fc6f5f2b574fe2429c43bd309534

How CyberStrike helps

Frequently asked questions

What is CVE-2025-71184?

CVE-2025-71184 is a medium-severity vulnerability. It was published on January 31, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-71184?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-71184?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-71184?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-71184 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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