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CVE-2025-71268

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix reservation leak in some error paths when inserting inline extent If we fail to allocate a path or join a transactio…

Published Mar 18, 2026CWE-401EPSS 0.23%

Overview

CVE-2025-71268 is a high-severity vulnerability. It was published on March 18, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

btrfs: fix reservation leak in some error paths when inserting inline extent

If we fail to allocate a path or join a transaction, we return from

__cow_file_range_inline() without freeing the reserved qgroup data,

resulting in a leak. Fix this by ensuring we call btrfs_qgroup_free_data()

in such cases.

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/28768bd3abf9995a93f6e01bfce01c60622964ddRefgit.kernel.org/stable/c/28b97fcbbf523779688e8de5fe55bf2dae3859f6Refgit.kernel.org/stable/c/c1c050f92d8f6aac4e17f7f2230160794fceef0cRefgit.kernel.org/stable/c/f3ee1732851aec6fe6b2cec2ef1b32d4e71d9913Refgit.kernel.org/stable/c/f7156512c8166d385f574b9ec030479aa7b1e8c9

How CyberStrike helps

Frequently asked questions

What is CVE-2025-71268?

CVE-2025-71268 is a high-severity vulnerability. It was published on March 18, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-71268?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-71268?

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-2025-71268?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-71268 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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