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CVE-2024-40939

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: net: wwan: iosm: Fix tainted pointer delete is case of region creation fail In case of region creation fail in ipc_devlink_crea…

Published Jul 12, 2024CWE-416EPSS 0.26%

Overview

CVE-2024-40939 is a high-severity vulnerability. It was published on July 12, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

net: wwan: iosm: Fix tainted pointer delete is case of region creation fail

In case of region creation fail in ipc_devlink_create_region(), previously

created regions delete process starts from tainted pointer which actually

holds error code value.

Fix this bug by decreasing region index before delete.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

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/040d9384870386eb5dc55472ac573ac7756b2050Refgit.kernel.org/stable/c/37a438704d19bdbe246d51d3749b6b3a8fe65afdRefgit.kernel.org/stable/c/b0c9a26435413b81799047a7be53255640432547Refgit.kernel.org/stable/c/fe394d59cdae81389dbf995e87c83c1acd120597Refgit.kernel.org/stable/c/040d9384870386eb5dc55472ac573ac7756b2050Refgit.kernel.org/stable/c/37a438704d19bdbe246d51d3749b6b3a8fe65afdRefgit.kernel.org/stable/c/b0c9a26435413b81799047a7be53255640432547Refgit.kernel.org/stable/c/fe394d59cdae81389dbf995e87c83c1acd120597Reflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-40939?

CVE-2024-40939 is a high-severity vulnerability. It was published on July 12, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-40939?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-40939?

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-2024-40939?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-40939 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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