Go to homepageCyberStrike

Menu

Star on GitHub · 3.4k
Sign inDownload

CVE-2024-40938

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: landlock: Fix d_parent walk The WARN_ON_ONCE() in collect_domain_accesses() can be triggered when trying to link a root mount p…

Published Jul 12, 2024EPSS 0.25%

Overview

CVE-2024-40938 is a medium-severity vulnerability. It was published on July 12, 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:

landlock: Fix d_parent walk

The WARN_ON_ONCE() in collect_domain_accesses() can be triggered when

trying to link a root mount point. This cannot work in practice because

this directory is mounted, but the VFS check is done after the call to

security_path_link().

Do not use source directory's d_parent when the source directory is the

mount point.

[mic: Fix commit message]

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/88da52ccd66e65f2e63a6c35c9dff55d448ef4dcRefgit.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1fRefgit.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6Refgit.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11Refgit.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dcRefgit.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1fRefgit.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6Refgit.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11Reflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-40938?

CVE-2024-40938 is a medium-severity vulnerability. It was published on July 12, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-40938?

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-2024-40938?

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-2024-40938?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-40938 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.

Related MEDIUM CVEs from 2024

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999
LiveWatch live →