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CVE-2024-41078

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix quota root leak after quota disable failure If during the quota disable we fail when cleaning the quota tree…

Published Jul 29, 2024CWE-401EPSS 0.22%

Overview

CVE-2024-41078 is a medium-severity vulnerability. It was published on July 29, 2024 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: qgroup: fix quota root leak after quota disable failure

If during the quota disable we fail when cleaning the quota tree or when

deleting the root from the root tree, we jump to the 'out' label without

ever dropping the reference on the quota root, resulting in a leak of the

root since fs_info->quota_root is no longer pointing to the root (we have

set it to NULL just before those steps).

Fix this by always doing a btrfs_put_root() call under the 'out' label.

This is a problem that exists since qgroups were first added in 2012 by

commit bed92eae26cc ("Btrfs: qgroup implementation and prototypes"), but

back then we missed a kfree on the quota root and free_extent_buffer()

calls on its root and commit root nodes, since back then roots were not

yet reference counted.

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/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51Refgit.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ffRefgit.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cfRefgit.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757Refgit.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53Refgit.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589dRefgit.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51Refgit.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ffRefgit.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cfRefgit.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757

How CyberStrike helps

Frequently asked questions

What is CVE-2024-41078?

CVE-2024-41078 is a medium-severity vulnerability. It was published on July 29, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-41078?

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-2024-41078?

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-2024-41078?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-41078 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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