Is CVE-2024-40938 in the CISA KEV catalog?

No. CVE-2024-40938 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-40938?

CVE-2024-40938 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2024-40938?

CVE-2024-40938 has an EPSS score of 0.25% (16th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-40938?

Upgrade linux on debian 12 to 6.1.99-1 or later. Fixes are available for 73 affected products.

CVE & CISA-KEV Catalog

CVE-2024-40938

MEDIUM

5.5

CVSS v3

NVD

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]

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.99-1CVE-2024-40938

Fixed in:6.9.7-1CVE-2024-40938

linuxUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-awsUbuntu

Fixed in:6.8.0-1015.16USN-6999-1

linux-azureUbuntu

Fixed in:6.8.0-1014.16USN-7004-1

linux-gcpUbuntu

Fixed in:6.8.0-1014.16USN-6999-1

linux-gkeUbuntu

Fixed in:6.8.0-1010.13USN-6999-1

linux-hwe-6.8Ubuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-ibmUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-6.8.0-1010-gkeUbuntu

Fixed in:6.8.0-1010.13USN-6999-1

linux-image-6.8.0-1011-raspiUbuntu

Fixed in:6.8.0-1011.12USN-6999-2

linux-image-6.8.0-1012-ibmUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-6.8.0-1012-oemUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-6.8.0-1012-oracleUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-6.8.0-1012-oracle-64kUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-6.8.0-1013-nvidiaUbuntu

Fixed in:6.8.0-1013.14~22.04.1USN-7005-2

Fixed in:6.8.0-1013.14USN-7005-1

linux-image-6.8.0-1013-nvidia-64kUbuntu

Fixed in:6.8.0-1013.14~22.04.1USN-7005-2

Fixed in:6.8.0-1013.14USN-7005-1

linux-image-6.8.0-1013-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1013.14.1USN-7005-1

linux-image-6.8.0-1013-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1013.14.1USN-7005-1

linux-image-6.8.0-1014-azureUbuntu

Fixed in:6.8.0-1014.16USN-7004-1

linux-image-6.8.0-1014-azure-fdeUbuntu

Fixed in:6.8.0-1014.16USN-7004-1

linux-image-6.8.0-1014-gcpUbuntu

Fixed in:6.8.0-1014.16USN-6999-1

linux-image-6.8.0-1015-awsUbuntu

Fixed in:6.8.0-1015.16USN-6999-1

linux-image-6.8.0-44-genericUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-6.8.0-44-generic-64kUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-6.8.0-44-lowlatencyUbuntu

Fixed in:6.8.0-44.44.1~22.04.1USN-7008-1

Fixed in:6.8.0-44.44.1USN-6999-1

linux-image-6.8.0-44-lowlatency-64kUbuntu

Fixed in:6.8.0-44.44.1~22.04.1USN-7008-1

Fixed in:6.8.0-44.44.1USN-6999-1

linux-image-6.8.0-45-genericUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-6.8.0-45-generic-64kUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-awsUbuntu

Fixed in:6.8.0-1015.16USN-6999-1

linux-image-azureUbuntu

Fixed in:6.8.0-1014.16USN-7004-1

linux-image-azure-fdeUbuntu

Fixed in:6.8.0-1014.16USN-7004-1

linux-image-gcpUbuntu

Fixed in:6.8.0-1014.16USN-6999-1

linux-image-genericUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-generic-64kUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-generic-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-generic-64k-hwe-24.04Ubuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-generic-hwe-22.04Ubuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-generic-lpaeUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-gkeUbuntu

Fixed in:6.8.0-1010.13USN-6999-1

linux-image-ibmUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-ibm-classicUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-ibm-lts-24.04Ubuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-kvmUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-lowlatencyUbuntu

Fixed in:6.8.0-44.44.1USN-6999-1

linux-image-lowlatency-64kUbuntu

Fixed in:6.8.0-44.44.1USN-6999-1

linux-image-lowlatency-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-44.44.1~22.04.1USN-7008-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.8.0-44.44.1~22.04.1USN-7008-1

linux-image-nvidiaUbuntu

Fixed in:6.8.0-1013.13USN-7005-1

linux-image-nvidia-6.8Ubuntu

Fixed in:6.8.0-1013.14~22.04.1USN-7005-2

linux-image-nvidia-64kUbuntu

Fixed in:6.8.0-1013.13USN-7005-1

linux-image-nvidia-64k-6.8Ubuntu

Fixed in:6.8.0-1013.14~22.04.1USN-7005-2

linux-image-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1013.14.1USN-7005-1

linux-image-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1013.14.1USN-7005-1

linux-image-oem-22.04Ubuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-oem-22.04aUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-oem-22.04bUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-oem-22.04cUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-oem-22.04dUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-oracleUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-oracle-64kUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-raspiUbuntu

Fixed in:6.8.0-1011.12USN-6999-2

linux-image-virtualUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-lowlatencyUbuntu

Fixed in:6.8.0-44.44.1USN-6999-1

linux-lowlatency-hwe-6.8Ubuntu

Fixed in:6.8.0-44.44.1~22.04.1USN-7008-1

linux-nvidiaUbuntu

Fixed in:6.8.0-1013.14USN-7005-1

linux-nvidia-6.8Ubuntu

Fixed in:6.8.0-1013.14~22.04.1USN-7005-2

linux-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1013.14.1USN-7005-1

linux-oem-6.8Ubuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-oracleUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-raspiUbuntu

Fixed in:6.8.0-1011.12USN-6999-2

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.25%probability of exploitation in 30 days

16thpercentile

Low risk: more likely to be exploited than 16% of all known CVEs.

References

Patch4

Other references1

lists.debian.org

Embed a live status badge for CVE-2024-40938

Markdown

[![CVE-2024-40938](https://tridentstack.com/cve/badge/CVE-2024-40938.svg)](https://tridentstack.com/cve/CVE-2024-40938)

HTML

<a href="https://tridentstack.com/cve/CVE-2024-40938"><img src="https://tridentstack.com/cve/badge/CVE-2024-40938.svg" alt="CVE-2024-40938"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.