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CVE-2024-49941

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: gpiolib: Fix potential NULL pointer dereference in gpiod_get_label() In `gpiod_get_label()`, it is possible that `srcu_derefere…

Published Oct 21, 2024CWE-476EPSS 0.20%

Overview

CVE-2024-49941 is a medium-severity vulnerability. It was published on October 21, 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:

gpiolib: Fix potential NULL pointer dereference in gpiod_get_label()

In `gpiod_get_label()`, it is possible that `srcu_dereference_check()` may

return a NULL pointer, leading to a scenario where `label->str` is accessed

without verifying if `label` itself is NULL.

This patch adds a proper NULL check for `label` before accessing

`label->str`. The check for `label->str != NULL` is removed because

`label->str` can never be NULL if `label` is not NULL.

This fixes the issue where the label name was being printed as `(efault)`

when dumping the sysfs GPIO file when `label == NULL`.

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/7b99b5ab885993bff010ebcd93be5e511c56e28aRefgit.kernel.org/stable/c/9ee4b907d7a5d7a53b4ff7727c371ff3d44ccbbb

How CyberStrike helps

Frequently asked questions

What is CVE-2024-49941?

CVE-2024-49941 is a medium-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-49941?

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-2024-49941?

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-2024-49941?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-49941 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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