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CVE-2024-56625

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: can: dev: can_set_termination(): allow sleeping GPIOs In commit 6e86a1543c37 ("can: dev: provide optional GPIO based terminatio…

Published Dec 27, 2024EPSS 0.21%

Overview

CVE-2024-56625 is a medium-severity vulnerability. It was published on December 27, 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:

can: dev: can_set_termination(): allow sleeping GPIOs

In commit 6e86a1543c37 ("can: dev: provide optional GPIO based

termination support") GPIO based termination support was added.

For no particular reason that patch uses gpiod_set_value() to set the

GPIO. This leads to the following warning, if the systems uses a

sleeping GPIO, i.e. behind an I2C port expander:

| WARNING: CPU: 0 PID: 379 at /drivers/gpio/gpiolib.c:3496 gpiod_set_value+0x50/0x6c

| CPU: 0 UID: 0 PID: 379 Comm: ip Not tainted 6.11.0-20241016-1 #1 823affae360cc91126e4d316d7a614a8bf86236c

Replace gpiod_set_value() by gpiod_set_value_cansleep() to allow the

use of sleeping GPIOs.

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/1ac442f25c19953d2f33b92549628b0aeac83db6Refgit.kernel.org/stable/c/3b0c5bb437d31a9864f633b85cbc42d2f6c51c96Refgit.kernel.org/stable/c/46637a608fb1ee871a0ad8bf70d917d5d95ac251Refgit.kernel.org/stable/c/ee1dfbdd8b4b6de85e96ae2059dc9c1bdb6b49b5Refgit.kernel.org/stable/c/faa0a1975a6fbce30616775216606eb8d6388ea1Reflists.debian.org/debian-lts-announce/2025/03/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-56625?

CVE-2024-56625 is a medium-severity vulnerability. It was published on December 27, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-56625?

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-2024-56625?

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-2024-56625?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-56625 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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